Si5334 P I N - C ONTR OLLED A N Y - F REQUENCY, A NY - O UTPUT Q U A D C L O C K G ENERATOR Features Applications Si5334 Transparent Top View OEB Pin Assignments VDDO0 Ordering Information: See page 24. CLK0B CLK0A Independent output voltage per driver 1.5, 1.8, 2.5, or 3.3 V Independent core supply voltage 1.8, 2.5, or 3.3 V Frequency increment/decrement feature enables glitchless frequency adjustments in 1 ppm steps Phase adjustment on each of the output drivers with <20 ps steps SSC on any or all outputs that is compliant to PCI Express Optional external feedback mode allows zero-delay implementation Loss-of-lock and loss-of-signal alarm Simple pin control Small size: 4x4 mm, 24-QFN Low power: 45 mA core supply typ Wide temperature range: -40 to +85 C Contact Silicon Labs for custom versions RSVD_GND Low-power MultiSynth technology enables independent, any-frequency synthesis on four differential output drivers Highly-configurable output drivers support up to four differential outputs or eight single-ended clock outputs or a combination of both Low phase jitter: 0.7 ps RMS typ High-precision synthesis allows true 0 ppm frequency accuracy on all outputs Flexible input reference External crystal: 8 to 30 MHz CMOS input: 5 to 200 MHz SSTL/HSTL input: 5 to 350 MHz Differential input: 5 to 710 MHz Independently-configurable outputs support any frequency or format LVPECL/LVDS: 0.16 to 710 MHz HCSL: 0.16 to 250 MHz CMOS: 0.16 to 200 MHz SSTL/HSTL: 0.16 to 350 MHz VDD IN1 CLK1A IN2 CLK1B IN3 VDDO1 GND IN5 CLK2A IN6 CLK2B The Si5334 is a high performance, low jitter clock generator capable of synthesizing any frequency on each of the device's four differential output clocks. The device accepts an external reference clock or crystal and generates four differential clock outputs, each of which is independently configurable to any frequency up to 350 MHz and select frequencies to 710 MHz. Using Silicon Labs' patented MultiSynth technology, each output clock is generated with very low jitter and zero ppm frequency error. To provide additional design flexibility, each output clock is independently configurable to support any signal format and reference voltage. The Si5334 provides low jitter frequency synthesis with outstanding frequency flexibility in a space-saving 4 x 4 mm QFN package. The device configuration is factory or field programmed and, upon power up, the device will begin operation in the predefined configuration without user intervention. The device supports operation from a 1.8, 2.5, or 3.3 V core supply. Copyright (c) 2008 by Silicon Laboratories IN7 VDDO2 VDDO3 Description Preliminary Rev. 0.16 6/10 IN4 CLK3A Any-frequency clock conversion MSAN/DSLAM/PON Fibre Channel, SAN Telecom line cards CLK3B LOSLOL Ethernet switch/router PCI Express 2.0/3.0 Broadcast video/audio timing Processor and FPGA clocking VDD Si5334 This information applies to a product under development. Its characteristics and specifications are subject to change without notice. Si5334 Functional Block Diagram VDD IN1 IN2 Synthesis Stage 2 XTAL/CLKIN REFCLKSE Phase Frequency Detector FDBKSE Loop Filter VCO /R0 MultiSynth /M1 /R1 MultiSynth /M2 /R2 CLK0A CLK0B VDDO1 CLK1A CLK1B fb FDBK /P2 VDDO2 FDBKB PINC/FINC Control NVM (OTP) VDDO3 MultiSynth /M3 RAM Preliminary Rev. 0.16 CLK2A CLK2B MultiSynth /N PDEC/FDEC 2 VDDO0 MultiSynth /M0 /P1 Control & Memory SSPB OEB LOSLOL Output Stage ref XTAL/CLKINB IN3 IN4 IN5 IN6 Synthesis Stage 1 (PLL) Input Stage Osc /R3 CLK3A CLK3B Si5334 TABLE O F C ONTENTS Section Page 1. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 2. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2.1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2.2. Crystal/Clock Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.3. Zero Delay Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.4. Breakthrough MultiSynth Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.5. Output Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.6. Output Clock Initial Phase Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2.7. Output Clock Phase Increment and Decrement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2.8. Output Clock Frequency Increment and Decrement . . . . . . . . . . . . . . . . . . . . . . . . . 16 2.9. R Divider Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 2.10. Spread Spectrum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2.11. Device Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2.12. LOSLOL Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2.13. Power-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 2.14. Factory Programming Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3. Pin Descriptions--Si5334 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4. Device Pinout by Part Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 5. Package Outline: 24-Lead QFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 6. Recommended PCB Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 7. Ordering Information and Standard Frequency Plans . . . . . . . . . . . . . . . . . . . . . . . . . . 26 7.1. Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 7.2. Standard Frequency Plans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Document Change List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 Preliminary Rev. 0.16 3 Si5334 1. Electrical Specifications Table 1. Recommended Operating Conditions (VDD = 1.8 V -5% to +10%, 2.5 V 10%, or 3.3 V 10%, TA = -40 to 85 C) Parameter Ambient Temperature Core Supply Voltage Output Buffer Supply Voltage Symbol Test Condition TA VDD Min Typ Max Unit -40 25 85 C 2.97 3.3 3.63 V 2.25 2.5 2.75 V 1.71 1.8 1.98 V 1.4 -- 3.63 V VDDOn Note: All minimum and maximum specifications are guaranteed and apply across the recommended operating conditions. Typical values apply at nominal supply voltages and an operating temperature of 25 C unless otherwise noted. Table 2. Absolute Maximum Ratings Parameter Symbol Test Condition Value Unit DC Supply Voltage VDD -0.5 to 3.8 V Storage Temperature Range TSTG -55 to 150 C ESD Tolerance HBM (100 pF, 1.5 k) 2.5 kV ESD Tolerance CDM 550 V ESD Tolerance MM 175 V Latch-up Tolerance Junction Temperature JESD78 Compliant TJ 150 C Note: Permanent device damage may occur if the Absolute Maximum Ratings are exceeded. Functional operation should be restricted to the conditions as specified in the operational sections of this data sheet. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. 4 Preliminary Rev. 0.16 Si5334 Table 3. DC Characteristics (VDD = 1.8 V -5% to +10%, 2.5 V 10%, or 3.3 V 10%, TA = -40 to 85 C) Parameter Symbol Test Condition Min Typ Max Unit IDD 100 MHz on all outputs, 25 MHz refclk -- 45 60 mA LVPECL, 710 MHz -- -- 30 mA LVDS, 710 MHz -- -- 8 mA HCSL, 250 MHz 2 pF load -- -- 20 mA SSTL, 350 MHz -- -- 19 mA CMOS, 50 MHz 15 pF load -- -- 28 mA CMOS, 200 MHz 2 pF load, 3.3 V VDD0 -- -- 20 mA CMOS, 200 MHz 2 pF load, 2.5 V -- 13 17 mA CMOS, 200 MHz 2 pF load, 1.8 V -- 11 15 mA HSTL, 350 MHz -- -- 19 mA Core Supply Current Output Buffer Supply Current IDDOx Table 4. Thermal Characteristics Parameter Symbol Test Condition Value Unit Thermal Resistance Junction to Ambient JA Still Air 37 C/W Thermal Resistance Junction to Case JC Still Air 25 C/W Table 5. Performance Characteristics (VDD = 1.8 V -5% to +10%, 2.5 V 10%, or 3.3 V 10%, TA = -40 to 85 C) Parameter Symbol Test Condition Min Typ Max Unit PLL Acquisition Time tACQ -- -- 25 ms PLL Lock Range fLOCK 5000 -- -- ppm fBW -- 1.6 -- MHz PLL Loop Bandwidth Notes: 1. Outputs at integer-related frequencies and using the same driver format. 2. Keep MultiSynth output frequency between 5 MHz to Fvco/8. 3. Only MultiSynth0 can have frequency inc/dec but MultiSynth0 can be routed to any output. 4. Spread spectrum is only available on clock outputs that are at 100 MHz and have the Rn divider set to 1. Preliminary Rev. 0.16 5 Si5334 Table 5. Performance Characteristics (Continued) (VDD = 1.8 V -5% to +10%, 2.5 V 10%, or 3.3 V 10%, TA = -40 to 85 C) Parameter Symbol Test Condition Min Typ Max Unit MultiSynth Frequency Synthesis Resolution fRES Output frequency < Fvco/8 0 0 1 ppb CLKIN Loss of Signal Assert Time tLOS -- 2.6 5 s tLOS_b 0.01 0.2 1 s PLL Loss of Lock Detect Time tLOL -- 5 10 ms POR to Output Clock Valid tRDY -- -- 2 ms Input-to-Output Propagation Delay tPROP Buffer Mode (PLL Bypass) -- 2.5 -- ns Output-Output Skew tDSKEW Rn divider = 11 -- -- 100 ps Programmable Initial Phase Offset POFFSET -45 -- +45 ns CLKIN Loss of Signal De-assert Time Phase Increment/Decrement Accuracy PSTEP -- -- 20 ps Phase Increment/Decrement Range PRANGE -45 -- +45 ns Frequency range for phase increment/decrement fPRANGE -- -- 3502 MHz Phase Increment/Decrement Update Rate PUPDATE Pin control -- -- 1500 kHz Frequency Increment/ Decrement Step Size fSTEP R divider not used3 1 -- See Note 2 ppm Frequency Increment/ Decrement Range fRANGE R divider not used3 -- -- 3502 MHz Frequency Increment/ Decrement Update Rate fUPDATE Pin control2,3 -- -- 1500 kHz Spread Spectrum PP Frequency Deviation SSDEV Clock frequency of 100 MHz4 -- -0.5 -- % Spread Spectrum Modulation Rate SSDEV Clock frequency of 100 MHz 30 -- 33 kHz Notes: 1. Outputs at integer-related frequencies and using the same driver format. 2. Keep MultiSynth output frequency between 5 MHz to Fvco/8. 3. Only MultiSynth0 can have frequency inc/dec but MultiSynth0 can be routed to any output. 4. Spread spectrum is only available on clock outputs that are at 100 MHz and have the Rn divider set to 1. 6 Preliminary Rev. 0.16 Si5334 Table 6. Input and Output Clock Characteristics (VDD = 1.8 V -5% to +10%, 2.5 V 10%, or 3.3 V 10%, TA = -40 to 85 C) Parameter Symbol Test Condition Min Typ Max Units 5 -- 710 MHz Input Clock (AC Coupled Differential Input Clocks on Pins IN1/2, IN5/6) Frequency fIN Differential Voltage Swing VPP 710 MHz input 0.4 -- 2.4 VPP Rise/Fall Time tR/tF 20%-80% -- -- 1.0 ns Duty Cycle1 DC < 1 ns tr/tf 40 -- 60 % Input Impedance RIN 10 -- -- k Input Capacitance CIN -- 3.5 -- pF 5 -- 200 MHz -0.1 -- 3.63 Vpp 200 MHz 0.8 -- 3.73 V Input Clock (DC-Coupled Single-Ended Input Clock on Pins IN3/4) Frequency fIN Input Voltage VI Input Voltage Swing CMOS Rise/Fall Time tR/tF 20%-80% -- -- 2 ns Duty Cycle2 DC < 2 ns tr/tf 40 -- 60 % Input Capacitance CIN -- 2.0 -- pF 0.16 -- 350 MHz 367 -- 466 MHz 550 -- 710 MHz HCSL 0.16 -- 250 MHz VOC common mode -- VDDO - 1.4 V -- V VSEPP peak-to-peak singleended swing 0.55 0.8 0.96 VPP VOC common mode 1.125 1.2 1.275 V VSEPP peak-to-peak singleended swing 0.25 0.35 0.45 VPP VOC common mode 0.8 0.875 0.95 V VSEPP peak-to-peak singleended swing 0.25 0.35 0.45 VPP Output Clocks (Differential) Frequency3 LVPECL Output Voltage LVDS Output Voltage (2.5/3.3 V) LVDS Output Voltage (1.8 V) fOUT LVPECL, LVDS Notes: 1. For best jitter performance, keep the input slew rate on IN1/2, IN5/6 faster than 0.3 V/ns. 2. For best jitter performance, keep the input single ended slew rate on pins 3 or 4 faster than 1 V/ns. 3. Only two unique frequencies above Fvco/8 can be simultaneously output, Fvco/4 and Fvco/6. 4. Includes effect of internal series 22 resistor. Preliminary Rev. 0.16 7 Si5334 Table 6. Input and Output Clock Characteristics (Continued) (VDD = 1.8 V -5% to +10%, 2.5 V 10%, or 3.3 V 10%, TA = -40 to 85 C) Parameter Symbol Test Condition Min Typ Max Units VOC common mode 0.35 0.375 0.400 V VSEPP peak-to-peak singleended swing 0.575 0.725 0.85 VPP Rise/Fall Time tR/tF 20%-80% -- -- 450 ps Duty Cycle DC 45 -- 55 % CMOS 0.16 -- 200 MHz SSTL, HSTL 0.16 -- 350 MHz HCSL Output Voltage Output Clocks (Single-Ended) Frequency fOUT CMOS 20%-80% Rise/Fall Time tR/tF 2 pF load -- 0.45 0.85 ns CMOS 20%-80% Rise/Fall Time tR/tF 15 pF load -- -- 1.7 ns See Note 4 -- 50 -- SSTL Output Resistance -- 50 -- HSTL Output Resistance -- 50 -- VDDO - 0.3 -- CMOS Output Resistance CMOS Output Voltage4 VOH 4 mA load VOL 4 mA load VOH VOL SSTL Output Voltage VOH VOL VOH VOL HSTL Output Voltage Duty Cycle VOH VOL SSTL-3 VDDOx = 2.97 to 3.63 V SSTL-2 VDDOx = 2.25 to 2.75 V SSTL-18 VDDOx = 1.71 to 1.98 V VDDO = 1.4 to 1.6 V V -- 0.3 V 0.45xVDDO+0.4 1 -- -- V -- -- 0.45xVDDO- 0.41 V 0.5xVDDO+0.41 -- -- V -- -- 0.5xVDDO- 0.41 V 0.5xVDDO+0.34 -- -- -- 0.5xVDDO- 0.34 V 0.5xVDDO+0.3 -- -- V -- -- 0.5xVDDO -0.3 V 45 -- 55 % DC V Notes: 1. For best jitter performance, keep the input slew rate on IN1/2, IN5/6 faster than 0.3 V/ns. 2. For best jitter performance, keep the input single ended slew rate on pins 3 or 4 faster than 1 V/ns. 3. Only two unique frequencies above Fvco/8 can be simultaneously output, Fvco/4 and Fvco/6. 4. Includes effect of internal series 22 resistor. 8 Preliminary Rev. 0.16 Si5334 Table 7. Control Pins (VDD = 1.8 V -5% to +10%, 2.5 V 10%, or 3.3 V 10%, TA = -40 to 85 C) Parameter Symbol Condition Min Typ Max Unit -0.1 0.3 x VDD V Input Control Pins (IN3, IN4) Input Voltage Low VIL Input Voltage High VIH 0.7 x VDD -- 3.63 V Input Capacitance CIN -- -- 4 pF Input Resistance RIN -- 20 -- k Output Control Pins (LOSLOL) Output Voltage Low VOL ISINK = 3 mA -- 0 0.4 V Rise/Fall Time 20-80% tR/tF CL < 10 pf, pull up 1 k -- -- 10 ns Table 8. Crystal Specifications for 8 to 11 MHz Parameter Symbol Min Typ Max Unit fXTAL 8 -- 11 MHz Load Capacitance (on-chip differential) cL 11 12 13 pF Crystal Output Capacitance cO -- -- 6 pF rESR -- -- 300 dL 100 -- -- W Symbol Min Typ Max Unit fXTAL 11 -- 19 MHz Load Capacitance (on-chip differential) cL 11 12 13 pF Crystal Output Capacitance cO -- -- 5 pF rESR -- -- 200 dL 100 -- -- W Crystal Frequency Equivalent Series Resistance Crystal Max Drive Level Table 9. Crystal Specifications for 11 to 19 MHz Parameter Crystal Frequency Equivalent Series Resistance Crystal Max Drive Level Preliminary Rev. 0.16 9 Si5334 Table 10. Crystal Specifications for 19 to 26 MHz Parameter Symbol Min fXTAL 19 Load Capacitance (on-chip differential) cL 11 Crystal Output Capacitance Crystal Frequency Equivalent Series Resistance Crystal Max Drive Level Typ Max Unit 26 MHz 13 pF cO 5 pF rESR 100 12 dL 100 Symbol Min fXTAL 26 Load Capacitance (on-chip differential) cL 11 Crystal Output Capacitance W Table 11. Crystal Specifications for 26 to 30 MHz Parameter Crystal Frequency Equivalent Series Resistance Crystal Max Drive Level Max Unit 30 MHz 13 pF cO 5 pF rESR 75 dL Typ 12 100 W Table 12. Jitter Specifications1,2 (VDD = 1.8 V -5% to +10%, 2.5 V 10%, or 3.3 V 10%, TA = -40 to 85 C) Parameter Symbol Test Condition Min Typ Max Unit GbE Random Jitter (12 kHz-20 MHz)3 JGBE CLKIN = 25 MHz All CLKn at 125 MHz4 -- 0.7 1 ps RMS GbE Random Jitter (1.875-20 MHz) RJGBE CLKIN = 25 MHz All CLKn at 125 MHz4 -- 0.38 0.79 ps RMS OC-12 Random Jitter (12 kHz-5 MHz) JOC12 CLKIN = 19.44 MHz All CLKn at 155.52 MHz4 -- 0.7 1 ps RMS JPCIERJ1 CLKIN = 25 MHz All CLKn at 100 MHz Spread Spectrum not enabled4 -- 0.6 1 ps RMS PCI Express 3.0 Random Jitter (1.5 MHz--50 MHz)3 Notes: 1. All jitter measurements apply for LVDS/HCSL/LVPECL output format with a low noise differential input clock and are made with an Agilent 90804 oscilloscope. All RJ measurements use RJ/DJ separation. 2. For best jitter performance, keep the single ended clock input slew rates at Pins 3 and 4 more than 1.0 V/ns and the differential clock input slew rates more than 0.3 V/ns. 3. DJ for PCI and GBE is < 5 ps pp 4. Output MultiSynth in Integer mode. 5. Input frequency to the Phase Detector between 25 and 40 MHz and any output frequency > 5 MHz. 6. Measured in accordance with JEDEC standard 65. 7. Rj is multiplied by 14; estimate the pp jitter from Rj over 212 rising edges. 10 Preliminary Rev. 0.16 Si5334 Table 12. Jitter Specifications1,2 (Continued) (VDD = 1.8 V -5% to +10%, 2.5 V 10%, or 3.3 V 10%, TA = -40 to 85 C) Parameter Min Typ Max Unit CLKIN = 25 MHz All CLKn at 100 MHz Spread Spectrum not enabled4 -- 0.7 1 ps RMS PCI Express 3.0 Period Jitter CLKIN = 25 MHz All CLKn at 100 MHz Spread Spectrum not enabled4 -- 8 15 ps pk-pk PCI Express 3.0 Cycle-Cycle Jitter CLKIN = 25 MHz All CLKn at 100 MHz Spread Spectrum not enabled4 -- 13 30 ps pk-pk JPER N = 10,000 cycles5 -- 10 30 ps pk-pk Cycle-Cycle Jitter JCC N = 10,000 cycles Output MultiSynth operated in integer or fractional mode5 -- 9 29 ps pk6 Random Jitter (12 kHz-20 MHz) RJ Output and feedback MultiSynth in integer or fractional mode5 -- 0.7 1.5 ps RMS -- 3 15 ps pk-pk -- 2 10 ps pk-pk Output MultiSynth operated in fractional mode5 -- 13 36 ps pk-pk Output MultiSynth operated in integer mode5 -- 12 20 ps pk-pk PCI Express 3.0 Random Jitter (12 kHz--20 MHz)3 Period Jitter Symbol JPCIERJ2 Test Condition Output MultiSynth operated in fractional 5 Deterministic Jitter DJ mode Output MultiSynth operated in integer 5 mode Total Jitter (12 kHz-20 MHz) TJ = DJ+14xRJ (See Note 7) Notes: 1. All jitter measurements apply for LVDS/HCSL/LVPECL output format with a low noise differential input clock and are made with an Agilent 90804 oscilloscope. All RJ measurements use RJ/DJ separation. 2. For best jitter performance, keep the single ended clock input slew rates at Pins 3 and 4 more than 1.0 V/ns and the differential clock input slew rates more than 0.3 V/ns. 3. DJ for PCI and GBE is < 5 ps pp 4. Output MultiSynth in Integer mode. 5. Input frequency to the Phase Detector between 25 and 40 MHz and any output frequency > 5 MHz. 6. Measured in accordance with JEDEC standard 65. 7. Rj is multiplied by 14; estimate the pp jitter from Rj over 212 rising edges. Preliminary Rev. 0.16 11 Si5334 Table 13. Typical Phase Noise Performance 12 Offset Frequency 25MHz XTAL to 156.25 MHz 27 MHz Ref In to 148.3517 MHz 19.44 MHz Ref In to 155.52 MHz 100 Hz -90 -87 -110 1 kHz -120 -117 -116 10 kHz -126 -123 -123 100 kHz -132 -130 -128 1 MHz -132 -132 -128 10 MHz -145 -145 -145 Preliminary Rev. 0.16 Units dBc/Hz Si5334 2. Functional Description 2.1. Overview VDD IN1 IN2 Synthesis Stage 2 MultiSynth /M0 XTAL/CLKIN VDDO0 /R0 CLK0A CLK0B /P1 REFCLK1 Phase Frequency Detector FDBKSE Loop Filter VCO VDDO1 MultiSynth /M1 /R1 MultiSynth /M2 /R2 CLK1A CLK1B fb FDBK /P2 VDDO2 FDBKB PINC/FINC Control NVM (OTP) VDDO3 MultiSynth /M3 PDEC/FDEC RAM CLK2A CLK2B MultiSynth /N Control & Memory SSPB OEB LOSLOL Output Stage ref XTAL/CLKINB IN3 IN4 IN5 IN6 Synthesis Stage 1 (PLL) Input Stage Osc /R3 CLK3A CLK3B Figure 1. Si5334 Block Diagram The Si5334 is a high-performance, low-jitter clock generator capable of synthesizing any frequency on each of the device's four differential output clocks. The device accepts an external crystal from 8 to 30 MHz or an input clock ranging from 5 to 710 MHz. Each output is independently factory-programmable to any frequency up to Fvco/8 (max of 350 MHz) and select frequencies to 710 MHz. The Si5334 fractional-N PLL, comprised of a phase detector, charge pump, loop filter, VCO, and dividers, is fully integrated on chip to simplify design. Using Silicon Labs' patented MultiSynth technology, each output clock is generated with low jitter and zero ppm frequency error. The device has four MultiSynth output dividers to provide non-integer frequency synthesis on every differential output clock. The Si5334 output driver is highly flexible. The signal format of each output clock can be user-specified to support LVPECL, LVDS, HCSL, CMOS, HSTL, or SSTL. Each output clock has its own supply voltage to allow for the utmost flexibility in mixed supply operations. The core of the Si5334 has its own supply voltage that can be 1.8, 2.5, or 3.3 V. The Si5334 supports an optional zero delay mode of operation. In this mode, one of the device output clocks is fed back to the FDBK/FDBKB clock input pins to implement the PLL feedback path and nullify the phase difference between the reference input and the output clocks. The Si5334D/E/F has a pin-controlled phase increment/ decrement feature that allows the user to adjust the phase of each output clock in relation to the other output clocks. The phase of each differential output clock can be set to an accuracy of 20 ps over a range of 45 ns. This feature is available over the 0.16 to Fvco/8 MHz frequency range at a maximum rate of phase change of 1.5 MHz. The Si5334G/H/J has a pin-controlled frequency increment/decrement feature that allows the user to change frequency in steps as small as 1 ppm of the initial frequency to as large as possible as long as the frequency at the output of the MultiSynth stays within the range of 5 MHz to Fvco/8 MHz. This feature is available on CLK0A/B only. The frequency step is glitchless. This feature is useful in applications that require a variable clock frequency. It can also be used in frequency margining applications to margin test system clocks during design/verification/test or manufacturing test applications. For EMI reduction, the Si5334K/L/M supports PCI Express 2.0 compliant spread spectrum on all output clocks that are 100 MHz. Preliminary Rev. 0.16 13 Si5334 The Si5334 is pin-controlled. No I2C interface is provided. The LOLLOS output pin indicates the lock condition of the PLL. An output enable input pin is available on the Si5334A/B/C which affects all the programmed clock outputs. All device specifications are guaranteed across these three core supply voltages. Packaged in a ROHS-6, Pb-free 4x4 mm QFN package, the device supports the industrial temperature range of -40 to +85 C. After core power is applied, the Si5334 downloads the factory-programmed NVM into RAM and begins operation. 2.2. Crystal/Clock Input The device can be driven from either a low frequency fundamental mode crystal (8-30 MHz) or an external reference clock (5-710 MHz). The crystal is connected across pins IN1 and IN2. The PCB traces between the crystal and the device must be kept very short to minimize stray capacitance. To ensure maximum compatibility with crystals from multiple vendors, the internal crystal oscillator provides adaptive crystal drive strength based upon the crystal frequency. The crystal load capacitors are placed on-chip to reduce external component count. If a crystal with a load capacitance outside the range specified in Tables 3-7 is supplied to the device, it will result in a slight ppm error in the device clock output frequencies. This error can be compensated for by a small change in the input to output multiplication ratio. If a reference clock is used, the device accepts a singleended input reference on IN3 or a differential LVPECL, LVDS, or HCSL source on IN1 and IN2. The input at IN3 can accept an input frequency up to 200 MHz. The signal applied at IN3 should be dc-coupled because internally this signal is ac-coupled to the receive input. A single-ended reference clock up to 350 MHz can be accoupled to IN1. A differential reference clock, such as LVPECL, LVDS or HCSL, is input on IN1,2 for frequencies up to 700 MHz. The differential input to IN1,2 requires 0.1 F ac coupling caps to be located near the device and a 100 termination resistor to be located between these caps and the transmission line going back to the differential driver. See "AN408: Termination Options for Any-Frequency, Any-Output Clock Generators and Clock Buffers" for more information on connecting input signals to IN1,2,3. This application note can be downloaded from www.silabs.com/timing. 14 2.3. Zero Delay Mode A clock that is input to the Si5334 will have an unspecified amount of delay from the input pins to the output pins. The zero delay mode can be used to reduce the delay through the Si5334 to typically less than 100 ps. This is accomplished by feeding back the CLK3 output to either IN4 or IN5,6. Using CLK3 allows for an easy PCB route of this signal back to the input. The R3 divider must be set to 1 when using feedback from CLK3 to implement the zero delay mode. All output clocks that are required to have zero delay must also have their Rn divider set to 1. A single-ended signal up to 200 MHz from CLK3 can be input to IN4. A singleended signal up to 350 MHz from CLK3 can be input to IN5 using the technique shown in AN408. A differential signal up to 710 MHz from CLK3a,b must be input to IN5,IN6. The IN4 input is electrically the same as IN3 described above. The IN5,IN6 inputs are electrically the same as the IN1,IN2 inputs described above. See AN408 for additional information on signal connections for the zero delay mode. 2.4. Breakthrough MultiSynth Technology Next-generation timing IC architectures require a wide range of frequencies which are often non-integer related. Traditional clock architectures address this by using multiple single PLL ICs, often at the expense of BOM complexity and power. The Si5334 and Si5338 use patented MultiSynth technology to dramatically simplify timing architectures by integrating the frequency synthesis capability of 4 Phase-Locked Loops (PLLs) in a single device, greatly minimizing size and power requirements versus traditional solutions. Based on a fractional-N PLL, the heart of the architecture is a low phase noise, high frequency VCO. The VCO supplies a high frequency output clock to the MultiSynth block on each of the four independent output paths. Each MultiSynth operates as a high speed fractional divider with Silicon Labs' proprietary phase error correction to divide down the VCO clock to the required output frequency with very low jitter. The first stage of the MultiSynth architecture is a fractional-N divider which switches seamlessly between the two closest integer divider values to produce the exact output clock frequency with 0 ppm error. To eliminate phase error generated by this process, MultiSynth calculates the relative phase difference between the clock produced by the fractional-N divider and the desired output clock and dynamically adjusts the phase to match the ideal clock waveform. This novel approach makes it possible to generate any output clock frequency without sacrificing jitter performance. Preliminary Rev. 0.16 Si5334 2.5. Output Driver Based on this architecture, the output of each MultiSynth can produce any frequency from 5 to Fvco/8 MHz. To support higher frequency operation, the MultiSynth divider can be bypassed. In bypass mode integer divide ratios of 4 and 6 are supported, which allows for output frequencies of Fvco/4 and Fvco/6 MHz which translates to 367-473.3 MHz and 550-710 MHz respectively. Because each MultiSynth uses the same VCO output there are output frequency limitations when output frequencies greater than Fvco/8 are desired. There are four clock output channels on the Si5334 (CLK0,CLK1,CLK2,CLK3) with two signal outputs per channel. Each channel may be programmed to be a differential driver or a dual single ended driver. If a channel is factory-programmed to be single ended, then the two outputs for that channel can be factoryprogrammed to be in-phase or out-of-phase. Si5334 output drivers can be configured as single ended CMOS, SSTL, HSTL or differential LVPECL, LVDS, and HCSL formats. For example, if 375 MHz is needed at the output of MultiSynth0, the VCO frequency would need to be 2.25 GHz. Now, all the other MultiSynths can produce any frequency from 5 MHz up to a maximum frequency of 2250/8 = 281.25 MHz. MultiSynth1,2,3 could also produce Fvco/4 = 562.5 MHz or Fvco/6 = 375 MHz. Only two unique frequencies above Fvco/8 can be output: Fvco/6 and Fvco/4. The supply voltage requirement for each driver format is selectable as shown in Table 14. All unused clock output channels must have their respective VDD0x supply voltage connected to pin 7 and 24 VDD. MultiSynth Fractional-N Divider fVCO Phase Adjust fOUT Phase Error Calculator Divider Select (DIV1, DIV2) Figure 2. Silicon Labs' MultiSynth Technology Table 14. Output Driver Signal Format Selection VDD0x Supply Voltage CMOS SSTL 1.5 HSTL LVPECL LVDS HCSL X X X 1.8 X X 2.5 X X X X X 3.3 X X X X X Preliminary Rev. 0.16 15 Si5334 An OEB pin is provided to enable/disable the output clocks. When OEB = 0, all outputs that have been factory programmed will be on. When OEB = 1, all clock outputs that have been factory programmed will be off and held to a low level. 2.6. Output Clock Initial Phase Offset Each CLKn output of the Si5334 can have its own unique initial phase offset over a range of +- 45 ns with an accuracy of 20 ps. When the respective R divider is not set to 1, this function is not supported. 2.7. Output Clock Phase Increment and Decrement The Si5334D/E/F has a pin-controlled phase increment/ decrement feature that allows the user to adjust the phase of 1 or more output clocks via pin control. Since their is only 1 pin for increment and 1 pin for decrement, each output clock channel needs to be enabled or disabled for this feature. In addition, the magnitude of the phase step must be set for each clock output channel. The phase adjustment accuracy is 20 ps over a range of 45 ns, and the phase transition is glitchless. This feature is not available on any clock output that has Spread Spectrum enabled. The maximum clock output frequency supported in this mode of operation is Fvco/ 8, where Fvco is the frequency of the device's internal voltage controlled oscillator for the configured frequency plan. The phase can be changed at a maximum rate of 1.5 MHz. In order to increment or decrement phase it is necessary to input a positive pulse of >100ns followed by a low of >100 ns. Since this feature uses pins 3 and 4, the reference clock must be input at pins 1 and 2 or the crystal used across these pins. Once a Si5334/D/E/ F is factory-programmed, the phase increment/ decrement parameters cannot be changed. If one desires to subsequently change the phase increment/ decrement parameters on a factory-programmed part, the Si5338 clock generator must be used. If a phase decrement causes a single MultiSynth clock period to be less than 8/Fvco, all clock outputs may turn off for up to 10 clock periods and then come back on with the phase setting before the illegal decrement. 2.8. Output Clock Frequency Increment and Decrement The Si5334G/H/J has a pin-controlled frequency increment/decrement feature that allows the user to adjust the frequency at the output of MultiSynth0 only. MultiSynth0 can be connected to any or all of the four output clock buffers with the muxes shown in the " Functional Block Diagram" on page 2. If frequency increment and decrement is required on the other clock outputs the Si5338 should be used. The magnitude of a single frequency step must be factory-programmed. Spread Spectrum and frequency increment/decrement cannot both be active on the same clock output. There is a single pin to control the frequency increment and a single pin to control the frequency decrement. The frequency increment or decrement step size can be factory-programmed from as low as 1 ppm of the initial frequency to a maximum that keeps the output of the MultiSynth within the limits of 5 MHz to Fvco/8. If a frequency increment causes the MultiSynth0 output frequency to go above Fvco/8, then all output clocks may turn off for up to 10 clock cycles and then come back on at the frequency before the increment. If the output frequency needs to go below 5 MHz, refer to "2.9. R Divider Considerations" on page 16 for further information. The frequency transition is glitchless. The frequency can be changed at a maximum rate of 1.5 MHz. In order to increment or decrement frequency it is necessary to input a positive pulse of >100 ns followed by a low of > 100 ns. Since this feature uses pins 3 and 4, the reference clock must be input at pins 1 and 2 or the crystal used across these pins. Once a Si5334/G/H/J is factory-programmed, the frequency increment/decrement parameters cannot be changed. If one desires to subsequently change the frequency increment/decrement parameters on a programmed part, the Si5338 clock generator must be used. 2.9. R Divider Considerations When the requested output frequency of a channel is below 5 MHz, the Rn (n = 0,1,2,3) divider will automatically be set and enabled. When the Rn divider is active the step size range of the frequency increment and decrement function will decrease by the Rn divide ratio. The Rn divider can be set to {1, 2, 4, 8, 16, 32}. Non-unity settings of R0 will affect the Finc/Fdec step size at the MultiSynth0 output. For example, if the MultiSynth0 output step size is 2.56 MHz and R0 = 8, the step size at the output of R0 will be 2.56 MHz divided by 8 = .32 MHz. When the Rn divider is set to non-unity, the initial phase of the CLKn output with respect to other CLKn outputs is not guaranteed. 16 Preliminary Rev. 0.16 Si5334 2.10. Spread Spectrum 2.11. Device Reset To reset the device, a power cycle must be performed. 2.12. LOSLOL Pin Modulation Rate Output Clock Frequency When either a Loss of LOck (LOL) or Loss of Signal (LOS) condition occurs the LOSLOL pin will assert. Time Figure 3. Spread Spectrum Triangle Waveform To reduce the electromagnetic interference (EMI), the Si5334K/L/M supports PCI Express compliant spread spectrum on all outputs that are 100 MHz. If CLK0 has spread spectrum enabled, then the Finc/Fdec function is not available on CLK0. Spread spectrum modulation spreads the energy across many frequencies to reduce the EMI across a narrow range of frequencies. The modulation rate is the time required to transition from the maximum spread spectrum frequency to the minimum spread spectrum frequency and then back to the maximum frequency as shown in Figure 3. The Si5334K/L/M supports 0.5% downspread at a 30- 33 kHz rate with a clock frequency of 100 MHz in compliance with the PCI Express standard. When pin 12 (SSPB) is low the factory-programmed clock outputs will have spread spectrum turned on. The LOS condition occurs when there is no input clock input to the Si5334. The loss of lock algorithm works by continuously monitoring the frequency difference between the two inputs of the phase frequency detector. When this frequency difference is greater than 1000 ppm, a loss of lock condition is declared. Note that the VCO will track the input clock frequency for up to ~50000 ppm, which will keep the inputs to the phase frequency detector at the same frequency until the PLL comes out of lock. When a clock input is removed, the LOSLOL pin will assert, and the clock outputs may drift up to 5%. When the input clock with an appropriate frequency is re-applied, the PLL will again lock. 2.13. Power-Up Upon powerup, the device performs an internal selfcalibration before operation to optimize loop parameters and jitter performance. While the self-calibration is being performed, the device VCO is being internally controlled by the self-calibration state machine and the LOL alarm is masked. The output clocks appear after the device finishes self calibration. 2.14. Factory Programming Options Silicon Labs Si5334 clock generators are factoryprogrammable devices. The functions and frequency plans can be customized to meet the needs of your applications. Contact your local Silicon Labs sales representative. Preliminary Rev. 0.16 17 Si5334 OEB VDDO0 CLK0B CLK0A RSVD_GND VDD 3. Pin Descriptions--Si5334 IN1 CLK1A IN2 CLK1B IN3 VDDO1 GND GND IN7 CLK2B VDDO3 IN6 CLK3A CLK2A CLK3B IN5 LOSLOL VDDO2 VDD IN4 Note: Center pad must be tied to GND for normal operation. Table 15. Si5334 Pin Descriptions Pin # Pin Name I/O Signal Type Description CLKIN/CLKINB. 1,2 18 IN1/IN2 I Multi These pins are used as the main differential clock input or as the XTAL input. Clock inputs to these pins must be ac-coupled. A crystal should be directly connected to pins 1,2 with the shortest traces possible. Keep the traces from pins 1,2 to the crystal as short as possible and keep other signals and radiating sources away from the crystal. When not in use, leave IN1 unconnected and IN2 connected to GND. Preliminary Rev. 0.16 Si5334 Table 15. Si5334 Pin Descriptions (Continued) Pin # Pin Name I/O Signal Type Description Keep the input level > -0.1 V and < VDD+.1 V. REFCLKSE High impedance input for single-ended clock signals such as CMOS. The input should be dc-coupled. PINC 3 IN3 I Multi This pin function is active for devices Si5334D/E/F. A positive pulse of greater than 100 ns width (followed by >100 ns low) will increase the input to output device latency by a factory-programmed amount. The function of this pin is factory programmed. FINC This pin function is active for devices Si5334G/H/J. A positive pulse of greater than 100 ns width (followed by >100 ns low) will increase the output frequency of the clock output by a factory-programmed amount. The function of this pin is factory-programmed. If this pin is unused, it should be grounded. Keep the input level > -0.1 V and < VDD+ 0.1 V. FDBKSE High Impedance input for single-ended clock signals, such as CMOS, when the zero delay mode of operation is required. This input should be dc-coupled. PDEC 4 IN4 I LVCMOS This pin function is active for devices Si5334D/E/F. A positive pulse of greater than 100 ns width (followed by >100 ns low) will decrease the input to output device latency by a factory-programmed amount. The function of this pin is factory-programmed. FDEC This pin function is active for devices Si5334G/H/J. A positive pulse of greater than 100 ns width (followed by >100 ns low) will decrease the output frequency of the clock output by a factory-programmed amount. The function of this pin is factory-programmed. If this pin is unused, it should be grounded. FDBK/FDBKB 5,6 7 IN5/IN6 VDD I VDD Multi Supply These pins form a differential input for feedback clock signals when a zero delay mode of operation is in effect. Always AC couple into these pins. When not is use leave FDBK unconnected and connect FDBK to ground. Core Supply Voltage The device operates from a 1.8, 2.5, or 3.3 V supply. A 0.1 F bypass capacitor should be located very close to this pin. Preliminary Rev. 0.16 19 Si5334 Table 15. Si5334 Pin Descriptions (Continued) Pin # 8 9 10 11 12 Pin Name LOSLOL CLK3B CLK3A VDDO3 IN7 I/O O O O VDD I Signal Type Open Drain Description Loss of Signal or Loss of Lock Indicator. 0 = No LOS or LOL condition. 1 = A LOS or LOL condition has occurred. For this pin a 1-5 k pull-up resistor to a voltage is required. This voltage may be as high as 3.63 V regardless of the voltage on pin 7. Multi Output Clock B for Channel 3 May be a single-ended output or half of a differential output with CLK3A being the other differential half. If unused leave this pin floating. Multi Output Clock A for Channel 3 May be a single-ended output or half of a differential output with CLK3B being the other differential half. If unused leave this pin floating. Supply Supply Output Clock Supply Voltage Supply voltage (3.3, 2.5, 1.8, or 1.5 V) for CLK3A,B. A 0.1 F capacitor must be located very close to this pin. If CLK3 is not used, this pin must be tied to VDD (pin 7, 24). SSPB. When low, Spread Spectrum is enabled on every output clock that is programmed for Spread Spectrum. This option is available on the Si5334K/L/M. On an Si5334 that does not contain the spread spectrum functionality, this pin should be connected to GND. 13 14 15 16 20 CLK2B CLK2A VDDO2 VDDO1 O O VDD VDD Multi Output Clock B for Channel 2 May be a single-ended output or half of a differential output with CLK2A being the other differential half. If unused leave this pin floating. Multi Output Clock A for Channel 2 May be a single-ended output or half of a differential output with CLK2B being the other differential half. If unused leave this pin floating. Supply Output Clock Supply Voltage. Supply voltage (3.3, 2.5, 1.8, or 1.5 V) for CLK2A,B. A 0.1 F capacitor must be located very close to this pin. If CLK2 is not used, this pin must be tied to VDD (pin 7, 24). Supply Output Clock Supply Voltage. Supply voltage (3.3, 2.5, 1.8, or 1.5 V) for CLK1A,B. A 0.1 F capacitor must be located very close to this pin. If CLK1 is not used, this pin must be tied to VDD (pin 7, 24). Preliminary Rev. 0.16 Si5334 Table 15. Si5334 Pin Descriptions (Continued) Pin # 17 18 19 20 21 Pin Name CLK1B CLK1A OEB VDDO0 CLK0B I/O O O I VDD O Signal Type Description Multi Output Clock B for Channel 1 May be a single-ended output or half of a differential output with CLK1A being the other differential half. If unused, this pin must be tied to VDD pin 24. If unused leave this pin floating. Multi Output Clock A for Channel 1 May be a single-ended output or half of a differential output with CLK1B being the other differential half. If unused leave this pin floating. LVCMOS Output Enable Low When low, all the factory-programmed outputs are enabled. When high all factory programmed outputs are forced to a logic low. Supply Output Clock Supply Voltage. Supply voltage (3.3, 2.5, 1.8, or 1.5 V) for CLK0A,B. A 0.1 F capacitor must be located very close to this pin. If CLK0 is not used, this pin must be tied to VDD (pin 7, 24). Multi Output Clock B for Channel 0 May be a single-ended output or half of a differential output with CLK0A being the other differential half. If unused leave this pin floating. 22 CLK0A O Multi Output Clock A for Channel 0 May be a single-ended output or half of a differential output with CLK0B being the other differential half. If unused leave this pin floating. 23 RSVD_GND GND GND Ground. Must be connected to system ground. 24 GND PAD VDD GND VDD GND Supply Core Supply Voltage. The device operates from a 1.8, 2.5, or 3.3 V supply. A 0.1 F bypass capacitor should be located very close to this pin. GND Ground Pad. This is the large pad in the center of the package. Device specifications cannot be guaranteed unless the ground pad is properly connected to a ground plane on the PCB. See section 6.0 for the PCB pad sizes and ground via requirements. Preliminary Rev. 0.16 21 Si5334 4. Device Pinout by Part Number The Si5334 is orderable in three different speed grades: Si5334A/D/G/K have a maximum output clock frequency limit of 710 MHz. Si5338B/E/H/L have a maximum output clock frequency of 350 MHz. Si5338C/F/J/M have a maximum output clock frequency of 200 MHz. Brief pin functions follow. XTAL/CLKIN--crystal or one side of differential input clock XTAL/CLKINB--crystal or one side of differential input clock REFCLKSE--single-ended reference clock input FDBKSE--single-ended feedback clock input FDBK--differential feedback input FDBKB--differential feedback input inverted FINC--frequency increment pin FDEC--frequency decrement pin PINC--phase increment pin PDEC--phase decrement pin OEB--output enable low See the four groupings below for the available pin control functions on pins 3, 4 and 12. 18 CLK1 17 CLK1B FDBKSE 4 FDBK 5 FDBKB 6 22 8 9 10 11 12 VDD INTR CLK3B CLK3 VDDO3 GND CLK0 CLK0B VDDO0 OEB 21 20 19 18 CLK1 XTAL/CLKINB 2 16 VDDO1 PINC 3 15 VDDO2 PDEC 4 14 CLK2 FDBK 5 13 CLK2B 7 22 17 CLK1B Si5334D-Axxxxx-GM Si5334E-Axxxxx-GM Si5334F-Axxxxx-GM 16 VDDO1 15 VDDO2 14 CLK2 FDBKB 6 13 CLK2B 7 8 9 10 11 12 GND Si5334A-Axxxxx-GM Si5334B-Axxxxx-GM Si5334C-Axxxxx-GM REFCLKSE 3 23 VDDO3 XTAL/CLKINB 2 24 XTAL/CLKIN 1 CLK3 19 CLK3B 20 VDD OEB 21 RSVD_GND VDDO0 22 INTR CLK0B 23 XTAL/CLKIN 1 VDD RSVD_GND 24 CLK0 VDD Pin # Function Pin # Function Pin # Function Pin # Function 1 XTAL/CLKIN 13 CLK2B 1 XTAL/CLKIN 13 CLK2B 2 XTAL/CLKINB 14 CLK2 2 XTAL/CLKINB 14 CLK2 3 REFCLKSE 15 VDDO2 3 PINC 15 VDDO2 4 FDBKSE 16 VDDO1 4 PDEC 16 VDDO1 5 FDBK 17 CLK1B 5 FDBK 17 CLK1B 6 FDBKB 18 CLK1 6 FDBKB 18 CLK1 7 VDD 19 OEB 7 VDD 19 OEB 8 INTR 20 VDDO0 8 INTR 20 VDDO0 9 CLK3B 21 CLK0B 9 CLK3B 21 CLK0B 10 CLK3 22 CLK0 10 CLK3 22 CLK0 11 VDDO3 23 RSVDGND 11 VDDO3 23 RSVDGND 12 GND 24 VDD 12 GND 24 VDD Preliminary Rev. 0.16 18 CLK1 17 CLK1B Si5334G-Axxxxx-GM Si5334H-Axxxxx-GM Si5334J-Axxxxx-GM FINC 3 FDEC 4 16 VDDO1 REFCLKSE 3 15 VDDO2 FDBKSE 4 8 9 10 11 12 VDD INTR CLK3B CLK3 VDDO3 GND CLK0B VDDO0 OEB 20 19 18 CLK1 17 CLK1B Si5334K-Axxxxx-GM Si5334L-Axxxxx-GM Si5334M-Axxxxx-GM 16 VDDO1 15 VDDO2 14 CLK2 FDBKB 6 13 CLK2B 7 VDD 7 21 FDBK 5 13 CLK2B FDBKB 6 22 XTAL/CLKINB 2 14 CLK2 FDBK 5 23 8 9 10 11 12 SSPB XTAL/CLKINB 2 24 XTAL/CLKIN 1 VDDO3 19 CLK0 20 CLK3 VDDO0 OEB 21 RSVD_GND CLK0B 22 INTR CLK0 23 CLK3B RSVD_GND 24 XTAL/CLKIN 1 VDD VDD Si5334 Pin # Function Pin # Function Pin # Function Pin # Function 1 XTAL/CLKIN 13 CLK2B 1 XTAL/CLKIN 13 CLK2B 2 XTAL/CLKINB 14 CLK2 2 XTAL/CLKINB 14 CLK2 3 FINC 15 VDDO2 3 REFCLKSE 15 VDDO2 4 FDEC 16 VDDO1 4 FDBKSE 16 VDDO1 5 FDBK 17 CLK1B 5 FDBK 17 CLK1B 6 FDBKB 18 CLK1 6 FDBKB 18 CLK1 7 VDD 19 OEB 7 VDD 19 OEB 8 INTR 20 VDDO0 8 INTR 20 VDDO0 9 CLK3B 21 CLK0B 9 CLK3B 21 CLK0B 10 CLK3 22 CLK0 10 CLK3 22 CLK0 11 VDDO3 23 RSVDGND 11 VDDO3 23 RSVDGND 12 GND 24 VDD 12 SSPB 24 VDD Preliminary Rev. 0.16 23 Si5334 5. Package Outline: 24-Lead QFN Figure 4. 24-Lead Quad Flat No-lead (QFN) Table 16. Package Dimensions Dimension Min Nom Max A 0.80 0.85 0.90 A1 0.00 0.02 0.05 b 0.18 0.25 0.30 D D2 4.00 BSC. 2.35 2.50 e 0.50 BSC. E 4.00 BSC. 2.65 E2 2.35 2.50 2.65 L 0.30 0.40 0.50 aaa 0.10 bbb 0.10 ccc 0.08 ddd 0.10 eee 0.05 Notes: 1. 2. 3. 4. 24 All dimensions shown are in millimeters (mm) unless otherwise noted. Dimensioning and Tolerancing per ANSI Y14.5M-1994. This drawing conforms to the JEDEC Outline MO-220, variation VGGD-8. Recommended card reflow profile is per the JEDEC/IPC J-STD-020C specification for Small Body Components. Preliminary Rev. 0.16 Si5334 6. Recommended PCB Layout Table 17. PCB Land Pattern Dimension Min Nom Max P1 2.50 2.55 2.60 P2 2.50 2.55 2.60 X1 0.20 Y1 0.75 0.25 0.80 0.30 0.85 C1 3.90 C2 3.90 E 0.50 Notes: General 1. All dimensions shown are in millimeters (mm) unless otherwise noted. 2. Dimensioning and Tolerancing per ANSI Y14.5M-1994 specification. 3. This Land Pattern Design is based on the IPC-7351 guidelines. 4. Connect the center ground pad to a ground plane with no less than five vias to a ground plane that is no more than 20 mils below it. Via drill size should be no smaller than 10 mils. A longer distance to the ground plane is allowed if more vias are used to keep the inductance from increasing. Solder Mask Design 5. All metal pads are to be non-solder mask defined (NSMD). Clearance between the solder mask and the metal pad is to be 60 m minimum, all the way around the pad. Stencil Design 6. A stainless steel, laser-cut and electro-polished stencil with trapezoidal walls should be used to assure good solder paste release. 7. The stencil thickness should be 0.125 mm (5 mils). 8. The ratio of stencil aperture to land pad size should be 1:1 for all perimeter pins. 9. A 2x2 array of 1.0 mm square openings on 1.25 mm pitch should be used for the center ground pad. Card Assembly 10. A No-Clean, Type-3 solder paste is recommended. 11. The recommended card reflow profile is per the JEDEC/IPC J-STD-020C specification for Small Body Components. Preliminary Rev. 0.16 25 Si5334 7. Ordering Information and Standard Frequency Plans 7.1. Ordering Information Si5334X GMR AXXXXX Operating Temp Range: -40 to +85 C Package: 4 x 4 mm QFN, ROHS6, Pb-free R = Tape & Reel (blank) = Tubes Si5334 Pin-Controlled Clock Generator Product Family A = Product Revision A 2nd Option Code = XXXXX A five-character code will be assigned for each unique configuration . Device starts operation upon powerup. See Table 10 for a listing of available configurations. To request a configuration not listed in the table, contact your Silicon Labs sales representative . Certain restrictions apply. 1st Option Code: Clock Output Frequency Range A 0.16 MHz to 710 MHz B 0.16 MHz to 350 MHz C 0.16 MHz to 200 MHz D 0.16 MHz to 710 MHz Phase Inc/Dec Pin Control E 0.16 MHz to 350 MHz Phase Inc/Dec Pin Control F 0.16 MHz to 200 MHz Phase Inc/Dec Pin Control G 0.16 MHz to 710 MHz Freq Inc/Dec Pin Control H 0.16 MHz to 350 MHz Freq Inc/Dec Pin Control J 0.16 MHz to 200 MHz Freq Inc/Dec Pin Control K 0.16 MHz to 710 MHz SSC L 0.16 MHz to 350 MHz SSC M 0.16 MHz to 200 MHz SSC 26 Preliminary Rev. 0.16 Ethernet/Fibre Channel SONET/SDH Application Preliminary Rev. 0.16 Clock Xtal Clock Xtal Si5334CA00113-GM Si5334CA00114-GM Si5334CA00115-GM Clock Si5334BA00110-GM Si5334CA00112-GM Xtal Si5334BA00109-GM Xtal Clock Si5334CA00108-GM Si5334CA00111-GM Xtal Clock Si5334CA00104-GM Si5334CA00107-GM Clock Si5334CA00103-GM Clock Clock Si5334AA00102-GM Si5334CA00106-GM Clock Si5334CA00101-GM Clock Clock Si5334CA00099-GM Si5334AA00105-GM Input OPN 7.2. Standard Frequency Plans 25.0000 25.0000 25.0000 25.0000 25.0000 25.0000 25.0000 25.0000 25.0000 155.5200 38.8800 38.8800 38.8800 19.4400 19.4400 19.4400 Freq n/a 3.3 V CMOS n/a 3.3 V CMOS n/a 3.3 V CMOS n/a 3.3 V CMOS n/a 3.3 V LVPECL 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS Format CLKIN 156.2500 125.0000 125.0000 125.0000 125.0000 312.5000 312.5000 161.1328 161.1328 161.1328 622.0800 155.5200 155.5200 622.0800 155.5200 155.5200 Freq 1.8 V LVDS 1.8 V LVDS 1.8 V LVDS 3.3 V CMOS 3.3 V CMOS 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL Format CLK0 156.2500 125.0000 125.0000 125.0000 125.0000 156.2500 156.2500 156.2500 156.2500 156.2500 622.0800 155.5200 155.5200 622.0800 155.5200 155.5200 Freq 1.8 V LVDS 1.8 V LVDS 1.8 V LVDS 3.3 V CMOS 3.3 V CMOS 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL Format CLK1 Table 18. Si5334 Standard Frequency Plans 125.0000 125.0000 125.0000 125.0000 125.0000 125.0000 125.0000 125.0000 125.0000 156.2500 155.5200 155.5200 77.7600 155.5200 155.5200 77.7600 Freq 1.8 V LVDS 125.0000 125.0000 125.0000 1.8 V LVDS 1.8 V LVDS 125.0000 125.0000 62.5000 62.5000 25.0000 25.0000 155.5200 155.5200 155.5200 77.7600 155.5200 155.5200 77.7600 Freq 1.8 V LVDS 1.8 V LVDS 1.8 V LVDS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL Format CLK3 3.3 V CMOS 3.3 V CMOS 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL Format CLK2 Si5334 27 28 Ethernet/Fibre Channel (Continued) Application Xtal Clock Clock Clock Si5334CA00125-GM Si5334CA00126-GM Si5334CA00127-GM Si5334CA00128-GM Xtal Si5334BA00121-GM Clock Clock Si5334CA00120-GM Si5334BA00124-GM Xtal Si5334CA00119-GM Xtal Clock Si5334CA00118-GM Si5334BA00123-GM Xtal Si5334CA00117-GM Clock Clock Si5334CA00116-GM Si5334BA00122-GM Input OPN Preliminary Rev. 0.16 156.2500 125.0000 25.0000 25.0000 25.0000 25.0000 25.0000 25.0000 25.0000 25.0000 25.0000 25.0000 25.0000 Freq 3.3 V LVPECL 3.3 V LVPECL 3.3 V CMOS n/a 3.3 V CMOS n/a 3.3 V CMOS n/a 3.3 V CMOS n/a 3.3 V CMOS n/a 3.3 V CMOS Format CLKIN 155.5200 156.2500 156.2500 156.2500 212.5000 212.5000 212.5000 212.5000 125.0000 125.0000 125.0000 125.0000 156.2500 Freq 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVDS 3.3 V LVDS 3.3 V LVPECL 3.3 V LVPECL 1.8 V LVDS 1.8 V LVDS 3.3 V CMOS 3.3 V CMOS 1.8 V LVDS Format CLK0 155.5200 156.2500 155.5200 155.5200 212.5000 212.5000 212.5000 212.5000 125.0000 125.0000 125.0000 125.0000 156.2500 Freq 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVDS 3.3 V LVDS 3.3 V LVPECL 3.3 V LVPECL 1.8 V LVDS 1.8 V LVDS 3.3 V CMOS 3.3 V CMOS 1.8 V LVDS Format CLK1 125.0000 155.5200 125.0000 125.0000 106.2500 106.2500 106.2500 106.2500 106.2500 106.2500 106.2500 106.2500 3.3 V LVPECL 3.3 V LVPECL 1.8 V LVDS 1.8 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V CMOS 125.0000 155.5200 106.2500 106.2500 106.2500 106.2500 106.2500 106.2500 106.2500 106.2500 106.2500 106.2500 125.0000 1.8 V LVDS 3.3 V CMOS Freq 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVDS 3.3 V LVDS 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V LVPECL 3.3 V CMOS 3.3 V CMOS 1.8 V LVDS Format CLK3 Format CLK2 125.0000 Freq Table 18. Si5334 Standard Frequency Plans (Continued) Si5334 Preliminary Rev. 0.16 Broadcast Video PDH Synchronous Ethernet (RXside) Application Clock Clock Clock Xtal Clock Xtal Clock Xtal Clock Si5334CA00136-GM Si5334CA00137-GM Si5334CA00138-GM Si5334CA00139-GM Si5334CA00140-GM Si5334CA00141-GM Si5334CA00142-GM Si5334CA00143-GM Si5334CA00144-GM Clock Si5334CA00134-GM Clock Clock Si5334CA00133-GM Si5334CA00135-GM Clock Si5334CA00132-GM Clock Si5334CA00130-GM Clock Clock Si5334CA00129-GM Si5334CA00131-GM Input OPN 27.0000 27.0000 27.0000 27.0000 27.0000 27.0000 19.4400 19.4400 19.4400 19.4400 19.4400 161.1328 156.2500 125.0000 25.0000 19.4400 Freq 3.3 V CMOS n/a 3.3 V CMOS n/a 3.3 V CMOS n/a 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V LVPECL 3.3 V LVPECL 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS Format CLKIN 108.0000 108.0000 74.2500 74.2500 74.2500 74.2500 44.7360 8.1920 2.0480 2.0480 1.5440 19.4400 19.4400 19.4400 19.4400 25.0000 Freq 3.3 V LVDS 3.3 V LVDS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS Format CLK0 74.2500 74.2500 74.1758 74.1758 74.1758 74.1758 44.7360 4.0960 2.0480 2.0480 1.5440 19.4400 19.4400 19.4400 19.4400 25.0000 Freq 3.3 V LVDS 3.3 V LVDS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS Format CLK1 74.1758 74.1758 74.1758 74.1758 54.0000 54.0000 34.3680 2.0480 1.5440 2.0480 1.5440 19.4400 19.4400 19.4400 19.4400 3.3 V LVDS 3.3 V LVDS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 54.0000 54.0000 27.0000 27.0000 27.0000 27.0000 34.3680 2.0480 1.5440 2.0480 1.5440 19.4400 19.4400 19.4400 19.4400 25.0000 3.3 V CMOS 3.3 V CMOS Freq 3.3 V LVDS 3.3 V LVDS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS Format CLK3 Format CLK2 25.0000 Freq Table 18. Si5334 Standard Frequency Plans (Continued) Si5334 29 30 Broadcast Video (Continued) Application Clock Xtal Clock Xtal Clock Xtal Clock Si5334BA00154-GM Si5334CA00155-GM Si5334BA00156-GM Si5334CA00157-GM Si5334CA00158-GM Si5334CA00159-GM Si5334CA00160-GM Clock Si5334CA00150-GM Xtal Xtal Si5334CA00149-GM Si5334CA00153-GM Clock Si5334CA00148-GM Clock Xtal Si5334CA00147-GM Si5334CA00152-GM Clock Si5334CA00146-GM Xtal Xtal Si5334CA00145-GM Si5334CA00151-GM Input OPN Preliminary Rev. 0.16 27.0000 27.0000 27.0000 27.0000 27.0000 27.0000 27.0000 27.0000 27.0000 27.0000 27.0000 27.0000 27.0000 27.0000 27.0000 27.0000 Freq 3.3 V CMOS n/a 3.3 V CMOS n/a 3.3 V CMOS n/a 3.3 V CMOS n/a 3.3 V CMOS n/a 3.3 V CMOS n/a 3.3 V CMOS n/a 3.3 V CMOS n/a Format CLKIN 148.5000 148.5000 148.5000 148.5000 148.3516 148.3516 156.2500 156.2500 148.5000 148.5000 74.2500 74.2500 74.2500 74.2500 74.1758 74.1758 Freq 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS Format CLK0 148.5000 148.5000 148.5000 148.5000 148.3516 148.3516 148.5000 148.5000 148.3516 148.3516 74.2500 74.2500 74.2500 74.2500 74.1758 74.1758 Freq 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS Format CLK1 148.3516 148.3516 148.5000 148.5000 148.3516 148.3516 148.3516 148.3516 74.2500 74.2500 74.1758 74.1758 74.2500 74.2500 74.1758 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS Format CLK2 74.1758 Freq Table 18. Si5334 Standard Frequency Plans (Continued) 148.3516 148.3516 148.5000 148.5000 148.3516 148.3516 108.0000 108.0000 74.1758 74.1758 74.1758 74.1758 74.2500 74.2500 74.1758 74.1758 Freq LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V 3.3 V LVDS 3.3 V LVDS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS 3.3 V CMOS Format CLK3 Si5334 Clock Clock Clock Clock Clock Xtal Si5334CA00162-GM Si5334CA00163-GM Si5334BA00164-GM Si5334CA00165-GM Si5334BA00166-GM Si5334MA00167-GM Clock Clock Si5334CA00161-GM Si5334MA00168-GM Input OPN 25.0000 25.0000 148.5000 148.5000 148.3516 148.3516 74.2500 74.1758 Freq 3.3 V CMOS n/a 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V CMOS 3.3 V CMOS Format 100.0000 100.0000 270.0000 148.3516 270.0000 148.5000 74.1758 74.2500 Freq 3.3 V HCSL 3.3 V HCSL 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V CMOS 3.3 V CMOS Format CLK0 100.0000 100.0000 270.0000 148.3516 270.0000 148.5000 74.1758 74.2500 Freq 3.3 V HCSL 3.3 V HCSL 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V CMOS 3.3 V CMOS Format CLK1 100.0000 100.0000 270.0000 148.3516 270.0000 148.5000 74.1758 3.3 V HCSL 3.3 V HCSL 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V CMOS 3.3 V CMOS Format CLK2 74.2500 Freq Notes: 1. -0.5% downspread enabled on CLK0-CLK3 2. To request new frequency plans/device configurations, please contact your local Silicon Labs sales representative. PCIe* Broadcast Video (Continued) Application CLKIN Table 18. Si5334 Standard Frequency Plans (Continued) 100.0000 100.0000 270.0000 148.3516 270.0000 148.5000 74.1758 74.2500 Freq 3.3 V HCSL 3.3 V HCSL LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V LVDS 3.3 V CMOS 3.3 V CMOS 3.3 V Format CLK3 Si5334 Preliminary Rev. 0.16 31 Si5334 DOCUMENT CHANGE LIST Revision 0.1 to Revision 0.15 Updated tables for ac/dc specs to remove TBDs. Updated ordering OPN in Table 10 from 34C to 34M-00167/00168-GM. Updated SSC information for correct part number. Removed diagram in Section 3. Corrected Pin 12 description Removed low-power LVPECL mode. Updated pin descriptions to say 710 MHz. Added PCB layout notes on via requirements for GND pad. Removed description of field programming as this is not supported. Revision 0.15 to Revision 0.16 32 Changed cycle-cycle jitter spec from pk-pk to pk. Change refclk1 pin name to refclkse. Preliminary Rev. 0.16 Si5334 NOTES: Preliminary Rev. 0.16 33 Si5334 CONTACT INFORMATION Silicon Laboratories Inc. 400 West Cesar Chavez Austin, TX 78701 Tel: 1+(512) 416-8500 Fax: 1+(512) 416-9669 Toll Free: 1+(877) 444-3032 Please visit the Silicon Labs Technical Support web page: https://www.silabs.com/support/pages/contacttechnicalsupport.aspx and register to submit a technical support request. The information in this document is believed to be accurate in all respects at the time of publication but is subject to change without notice. Silicon Laboratories assumes no responsibility for errors and omissions, and disclaims responsibility for any consequences resulting from the use of information included herein. Additionally, Silicon Laboratories assumes no responsibility for the functioning of undescribed features or parameters. Silicon Laboratories reserves the right to make changes without further notice. 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Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders. 34 Preliminary Rev. 0.16