SiT9120 Standard Frequency Differential Oscillator The Smart Timing Choice The Smart Timing Choice Features Applications 31 standard frequencies from 25 MHz to 212.5 MHz LVPECL and LVDS output signaling types 0.6 ps RMS phase jitter (random) over 12 kHz to 20 MHz bandwidth Frequency stability as low as 10 ppm Industrial and extended commercial temperature ranges Industry-standard packages: 3.2x2.5, 5.0x3.2 and 7.0x5.0 mmxmm For any other frequencies between 1 to 625 MHz, refer to SiT9121 and SiT9122 datasheet 10GB Ethernet, SONET, SATA, SAS, Fibre Channel, PCI-Express Telecom, networking, instrumentation, storage, servers Electrical Characteristics Parameter and Conditions Symbol Min. Typ. Max. Unit Condition LVPECL and LVDS, Common Electrical Characteristics Supply Voltage Output Frequency Range Frequency Stability Vdd f F_stab 2.97 3.3 3.63 2.25 2.5 2.75 V V 2.25 - 3.63 V 25 -10 - - 212.5 +10 MHz ppm See last page for list of standard frequencies -20 - +20 ppm -25 - +25 ppm Inclusive of initial tolerance, operating temperature, rated power supply voltage, and load variations ppm Termination schemes in Figures 1 and 2 - XX ordering code -50 - +50 First Year Aging F_aging1 -2 - +2 ppm 25C 10-year Aging F_aging10 -5 - +5 ppm 25C Operating Temperature Range T_use -40 - +85 C Industrial -20 - +70 C Extended Commercial Input Voltage High VIH 70% - - Vdd Pin 1, OE or ST Input Voltage Low VIL - - 30% Vdd Pin 1, OE or ST Input Pull-up Impedance Z_in - 100 250 k Pin 1, OE logic high or logic low, or ST logic high 2 - - M Pin 1, ST logic low - 6 10 ms Measured from the time Vdd reaches its rated minimum value. Start-up Time Resume Time Duty Cycle T_start T_resume - DC 45 6 10 ms In Standby mode, measured from the time ST pin crosses 50% threshold. - 55 % Contact SiTime for tighter duty cycle LVPECL, DC and AC Characteristics Current Consumption Idd - 61 69 mA Excluding Load Termination Current, Vdd = 3.3V or 2.5V OE Disable Supply Current I_OE - - 35 mA OE = Low Output Disable Leakage Current I_leak - - 1 A OE = Low Standby Current I_std - - 100 A ST = Low, for all Vdds I_driver - - 30 mA Maximum average current drawn from OUT+ or OUT- Output High Voltage VOH Vdd-1.1 - Vdd-0.7 V See Figure 1(a) Output Low Voltage VOL Vdd-1.9 - Vdd-1.5 V See Figure 1(a) V_Swing 1.2 1.6 2.0 V See Figure 1(b) Rise/Fall Time Tr, Tf - 300 500 ps 20% to 80%, see Figure 1(a) OE Enable/Disable Time RMS Period Jitter T_oe T_jitt RMS Phase Jitter (random) T_phj - - - - - - 1.2 1.2 1.2 0.6 115 1.7 1.7 1.7 0.85 ns ps ps ps ps f = 212.5 MHz - For other frequencies, T_oe = 100ns + 3 period f = 100 MHz, VDD = 3.3V or 2.5V f = 156.25 MHz, VDD = 3.3V or 2.5V f = 212.5 MHz, VDD = 3.3V or 2.5V f = 156.25 MHz, Integration bandwidth = 12 kHz to 20 MHz, all Vdds Idd - 47 55 mA Excluding Load Termination Current, Vdd = 3.3V or 2.5V OE Disable Supply Current I_OE - - 35 mA OE = Low Differential Output Voltage VOD 250 350 450 mV See Figure 2 Maximum Output Current Output Differential Voltage Swing LVDS, DC and AC Characteristics Current Consumption SiTime Corporation Rev. 1.06 990 Almanor Avenue, Sunnyvale, CA 94085 (408) 328-4400 www.sitime.com Revised October 3, 2014 SiT9120 Standard Frequency Differential Oscillator The Smart Timing Choice The Smart Timing Choice Electrical Characteristics (continued) Parameter and Conditions Symbol Min. Typ. Max. Unit Condition LVDS, DC and AC Characteristics (continued) Output Disable Leakage Current I_leak - - 1 A Standby Current I_std - - 100 A ST = Low, for all Vdds VOD - - 50 mV See Figure 2 VOD Magnitude Change Offset Voltage OE = Low VOS 1.125 1.2 1.375 V See Figure 2 VOS Magnitude Change VOS - - 50 mV See Figure 2 Rise/Fall Time Tr, Tf - 495 600 ps 20% to 80%, see Figure 2 OE Enable/Disable Time RMS Period Jitter T_oe T_jitt RMS Phase Jitter (random) T_phj - - - - - - 1.2 1.2 1.2 0.6 115 1.7 1.7 1.7 0.85 ns ps ps ps ps f = 212.5 MHz - For other frequencies, T_oe = 100ns + 3 period f = 100 MHz, VDD = 3.3V or 2.5V f = 156.25 MHz, VDD = 3.3V or 2.5V f = 212.5 MHz, VDD = 3.3V or 2.5V f = 156.25 MHz, Integration bandwidth = 12 kHz to 20 MHz, all Vdds Pin Description Pin Map Functionality OE Input H or Open: specified frequency output L: output is high impedance ST Input H or Open: specified frequency output L: Device goes to sleep mode. Supply current reduces to I_std. OE/ST 1 6 VDD NC NA No Connect; Leave it floating or connect to GND for better heat dissipation NC 2 5 OUT- GND 3 4 OUT+ 1 2 3 GND Power VDD Power Supply Ground 4 OUT+ Output Oscillator output 5 OUT- Output Complementary oscillator output 6 VDD Power Power supply voltage Top View Absolute Maximum Attempted operation outside the absolute maximum ratings of the part may cause permanent damage to the part. Actual performance of the IC is only guaranteed within the operational specifications, not at absolute maximum ratings. Min. Max. Unit Storage Temperature Parameter -65 150 C VDD -0.5 4 V Electrostatic Discharge (HBM) - 2000 V Soldering Temperature (follow standard Pb free soldering guidelines) - 260 C Thermal Consideration JA, 4 Layer Board JC, Bottom 7050, 6-pin 142 27 5032, 6-pin 97 20 3225, 6-pin 109 20 Package (C/W) (C/W) Environmental Compliance Parameter Condition/Test Method Mechanical Shock MIL-STD-883F, Method 2002 Mechanical Vibration MIL-STD-883F, Method 2007 Temperature Cycle JESD22, Method A104 Solderability MIL-STD-883F, Method 2003 Moisture Sensitivity Level MSL1 @ 260C Rev. 1.06 Page 2 of 8 www.sitime.com SiT9120 Standard Frequency Differential Oscillator The Smart Timing Choice The Smart Timing Choice Waveform Diagrams OUT80% 80% 20% 20% VOH OUT+ Tr VOL Tf GND Figure 1(a). LVPECL Voltage Levels per Differential Pin (OUT+/OUT-) V _ S w in g 0 V t Figure 1(b). LVPECL Voltage Levels Across Differential Pair OUT80% 80% VOD 20% 20% OUT+ VOS Tr Tf GND Figure 2. LVDS Voltage Levels per Differential Pin (OUT+/OUT-) Rev. 1.06 Page 3 of 8 www.sitime.com SiT9120 Standard Frequency Differential Oscillator The Smart Timing Choice The Smart Timing Choice Termination Diagrams LVPECL: VDD Z 0 = 50 OUT+ D+ Receiver Device L V P E C L D rive r Z0 = 5 0 OUT- D50 50 V T T = V D D - 2.0 V Figure 3. LVPECL Typical Termination VDD= 3.3V => R1 = 100 to 150 VDD= 2.5V => R1 = 75 VDD OUT+ 100 nF Z0 = 50 D+ Receiver Device LVPECL Driver 100 nF Z0 = 50 OUTR1 R1 D50 50 VTT Figure 4. LVPECL AC Coupled Termination VDD = 3.3V => R1 = R3 = 133 and R2 = R4 = 82 VDD = 2.5V => R1 = R3 = 250 and R2 = R4 = 62.5 VDD R1 VDD OUT+ R3 Z0 = 50 D+ Receiver Device LVPECL Driver OUT- Z0 = 50 DR2 R4 Figure 5. LVPECL with Thevenin Typical Termination Rev. 1.06 Page 4 of 8 www.sitime.com SiT9120 Standard Frequency Differential Oscillator The Smart Timing Choice The Smart Timing Choice LVDS: VDD OUT+ Z0 = 50 D+ 100 LVDS Driver OUT- Z0 = 50 Receiver Device D- Figure 6. LVDS Single Termination (Load Terminated) Rev. 1.06 Page 5 of 8 www.sitime.com SiT9120 Standard Frequency Differential Oscillator The Smart Timing Choice The Smart Timing Choice Dimensions and Patterns Package Size - Dimensions (Unit: mm)[1] Recommended Land Pattern (Unit: mm)[2] 3.2 x 2.5x 0.75 mm 3.20.05 2.20 #4 #2 #3 #4 #6 0.9 #1 #3 #2 1.00 0.7 YXXXX 2 .2 5 #5 1.6 #5 2.50.05 #6 #1 0.6 0.750.05 0 .6 5 1 .0 5 5.0 x 3.2 x 0.75 mm #5 #4 #2 #3 #4 #5 #6 1.20 #6 YXXXX #1 #3 #2 #1 0.750.05 7.0 x 5.0x 0.90 mm 7.00.10 5.08 #4 5.08 #6 3.80 #3 #3 #2 #1 1.60 #2 #5 1.10 YXXXX #1 #4 2.60 #5 5.00.10 #6 0.90 0.10 1.40 1.60 Notes: 1. Top Marking: Y denotes manufacturing origin and XXXX denotes manufacturing lot number. The value of "Y" will depend on the assembly location of the device. 2. A capacitor of value 0.1 F between Vdd and GND is recommended. Rev. 1.06 Page 6 of 8 www.sitime.com SiT9120 Standard Frequency Differential Oscillator The Smart Timing Choice The Smart Timing Choice Ordering Information SiT9120AC-1C2-33E125.000000T Packaging: "T", "Y", "X", "D", "E", or "G" Refer to table below for packing method Leave Blank for Bulk Part Family "SiT9120" Revision Letter "A" is the revision of Silicon Frequency See supported frequency list below Temperature Range "I" Industrial, -40 to 85C "C" Extended Commercial, -20 to 70C Feature Pin "E" for Output Enable "S" for Standby Signalling Type "1" = LVPECL "2" = LVDS Voltage Supply Package Size "B" 3.2 x 2.5 mm x mm "C" 5.0 x 3.2 mm x mm "D" 7.0 x 5.0 mm x mm Frequency Stability "F" for 10 ppm "1" for 20 ppm "2" for 25 ppm "3" for 50 ppm "25" for 2.5V 10% "33" for 3.3V 10% "XX" for 2.25V to 3.63V Supported Frequencies 25.000000 MHz 50.000000 MHz 74.175824 MHz 74.250000 MHz 75.000000 MHz 98.304000 MHz 100.000000 MHz 106.250000 MHz 125.000000 MHz 133.000000 MHz 133.300000 MHz 133.330000 MHz 133.333000 MHz 133.333300 MHz 133.333330 MHz 133.333333 MHz 148.351648 MHz 148.500000 MHz 150.000000 MHz 155.520000 MHz 156.250000 MHz 161.132800 MHz 166.000000 MHz 166.600000 MHz 166.660000 MHz 166.666000 MHz 166.666600 MHz 166.666660 MHz 166.666666 MHz 200.000000 MHz 212.500000 MHz Ordering Codes for Supported Tape & Reel Packing Method Device Size 8 mm T&R (3ku) 8 mm T&R (1ku) 8 mm T&R (250u) 7.0 x 5.0 mm - - - - 5.0 x 3.2 mm - - - T 3.2 x 2.5 mm D E G T Y Rev. 1.06 12 mm T&R (3ku) 12 mm T&R (1ku) Page 7 of 8 12 mm T&R (250u) 16 mm T&R (3ku) 16 mm T&R (1ku) 16 mm T&R (250u) - - T Y X Y X - - - X - - - www.sitime.com SiT9120 Standard Frequency Differential Oscillator The Smart Timing Choice The Smart Timing Choice Revision History Version Release Date 1.01 2/20/13 Original Change Summary 1.02 11/23/13 Added input specifications, LVPECL/LVDS waveforms, packaging T&R options 1.03 2/6/14 1.04 3/3/14 Added 10 ppm 1.05 7/23/14 Include Thermal Consideration Table 1.06 10/3/14 Modified Thermal Consideration values Added 8mm T&R option (c) SiTime Corporation 2014. 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Rev. 1.06 Page 8 of 8 www.sitime.com The Smart Timing Choice The Smart Timing Choice Supplemental Information The Supplemental Information section is not part of the datasheet and is for informational purposes only. SiTime Corporation 990 Almanor Avenue, Sunnyvale, CA 94085 (408) 328-4400 www.sitime.com The Smart Timing Choice The Smart Timing Choice Silicon MEMS Outperforms Quartz SiTime Corporation Silicon MEMS Outperforms Quartz Rev. 1.1 990 Almanor Avenue, Sunnyvale, CA 94085 (408) 328-4400 www.sitime.com Revised October 5, 2013 Silicon MEMS Outperforms Quartz The Smart Timing Choice The Smart Timing Choice Best Reliability Best Electro Magnetic Susceptibility (EMS) Silicon is inherently more reliable than quartz. Unlike quartz suppliers, SiTime has in-house MEMS and analog CMOS expertise, which allows SiTime to develop the most reliable products. Figure 1 shows a comparison with quartz technology. SiTime's oscillators in plastic packages are up to 54 times more immune to external electromagnetic fields than quartz oscillators as shown in Figure 3. Why is SiTime Best in Class: * SiTime's MEMS resonators are vacuum sealed using an advanced EpiSealTM process, which eliminates foreign particles and improves long term aging and reliability * World-class MEMS and CMOS design expertise Why is SiTime Best in Class: * Internal differential architecture for best common mode noise rejection * Electrostatically driven MEMS resonator is more immune to EMS SiTime vs Quartz Electro Magnetic Susceptibility (EMS) Mean Time Between Failure (Million Hours) - 30 - 39 500 IDT (Fox) 38 SiTime 20X Better 28 Epson TXC 16 Pericom 14 Average Spurs (dB) SiTime - 40 - 40 - 42 - 43 - 45 - 50 - 60 SiTime 54X Better - 70 - 73 - 80 - 90 200 0 Kyocera 600 400 Figure 1. Reliability Comparison[1] Epson TXC CW SiLabs SiTime Figure 3. Electro Magnetic Susceptibility (EMS)[3] Best Aging Best Power Supply Noise Rejection Unlike quartz, MEMS oscillators have excellent long term aging performance which is why every new SiTime product specifies 10-year aging. A comparison is shown in Figure 2. SiTime's MEMS oscillators are more resilient against noise on the power supply. A comparison is shown in Figure 4. * SiTime's MEMS resonators are vacuum sealed using an advanced EpiSeal process, which eliminates foreign particles and improves long term aging and reliability * Inherently better immunity of electrostatically driven MEMS resonator SiTime MEMS vs. Quartz Aging 10 SiTime MEMS Oscillator Quartz Oscillator 8.0 Aging (PPM) 8 SiTime 2X Better 6 4 2 0 3.0 3.5 1.5 1-Year 10-Year Figure 2. Aging Comparison[2] Silicon MEMS Outperforms Quartz Rev. 1.1 Why is SiTime Best in Class: * On-chip regulators and internal differential architecture for common mode noise rejection * Best analog CMOS design expertise Additive Integrated Phase Jitter per mVp-p Injected Noise (ps/mv) Why is SiTime Best in Class: Power Supply Noise Rejection SiTIme 5.0 NDK Epson Kyocera 4.0 3.0 2.0 SiTime SiTime 3X Better 1.0 0.0 10 100 1,000 Power Supply Noise Frequency (kHz) 10,000 Figure 4. Power Supply Noise Rejection[4] www.sitime.com Silicon MEMS Outperforms Quartz The Smart Timing Choice The Smart Timing Choice Best Vibration Robustness Best Shock Robustness High-vibration environments are all around us. All electronics, from handheld devices to enterprise servers and storage systems are subject to vibration. Figure 5 shows a comparison of vibration robustness. SiTime's oscillators can withstand at least 50,000 g shock. They all maintain their electrical performance in operation during shock events. A comparison with quartz devices is shown in Figure 6. Why is SiTime Best in Class: Why is SiTime Best in Class: * The moving mass of SiTime's MEMS resonators is up to 3000 times smaller than quartz * Center-anchored MEMS resonator is the most robust design * The moving mass of SiTime's MEMS resonators is up to 3000 times smaller than quartz * Center-anchored MEMS resonator is the most robust design Vibration Sensitivity (ppb/g) TXC Epson Connor Winfield Kyocera SiLabs 100.00 10.00 1.00 SiTime Up to 30x Better 0.10 10 100 Vibration Frequency (Hz) Figure 5. Vibration Robustness[5] 1000 Peak Frequency Deviation (PPM) Vibration Sensitivity vs. Frequency SiTime 16 14 Differential XO Shock Robustness - 500 g 14.3 12.6 12 10 8 SiTime Up to 25x Better 6 3.9 4 2.9 2.5 2 0.6 0 Kyocera Epson TXC CW SiLabs SiTime Figure 6. Shock Robustness[6] Notes: 1. Data Source: Reliability documents of named companies. 2. Data source: SiTime and quartz oscillator devices datasheets. 3. Test conditions for Electro Magnetic Susceptibility (EMS): * According to IEC EN61000-4.3 (Electromagnetic compatibility standard) * Field strength: 3V/m * Radiated signal modulation: AM 1 kHz at 80% depth * Carrier frequency scan: 80 MHz - 1 GHz in 1% steps * Antenna polarization: Vertical * DUT position: Center aligned to antenna Devices used in this test: SiTime, SiT9120AC-1D2-33E156.250000 - MEMS based - 156.25 MHz Epson, EG-2102CA 156.2500M-PHPAL3 - SAW based - 156.25 MHz TXC, BB-156.250MBE-T - 3rd Overtone quartz based - 156.25 MHz Kyocera, KC7050T156.250P30E00 - SAW based - 156.25 MHz Connor Winfield (CW), P123-156.25M - 3rd overtone quartz based - 156.25 MHz SiLabs, Si590AB-BDG - 3rd overtone quartz based - 156.25 MHz 4. 50 mV pk-pk Sinusoidal voltage. Devices used in this test: SiTime, SiT8208AI-33-33E-25.000000, MEMS based - 25 MHz NDK, NZ2523SB-25.6M - quartz based - 25.6 MHz Kyocera, KC2016B25M0C1GE00 - quartz based - 25 MHz Epson, SG-310SCF-25M0-MB3 - quartz based - 25 MHz 5. Devices used in this test: same as EMS test stated in Note 3. 6. Test conditions for shock test: * MIL-STD-883F Method 2002 * Condition A: half sine wave shock pulse, 500-g, 1ms * Continuous frequency measurement in 100 s gate time for 10 seconds Devices used in this test: same as EMS test stated in Note 3 7. Additional data, including setup and detailed results, is available upon request to qualified customers. Please contact productsupport@sitime.com. Silicon MEMS Outperforms Quartz Rev. 1.1 www.sitime.com Document Feedback Form The Smart Timing Choice The Smart Timing Choice SiTime values your input in improving our documentation. Click here for our online feedback form or fill out and email the form below to productsupport@sitime.com. 1. Does the Electrical Characteristics table provide complete information? Yes No If No, what parameters are missing? _________________________________________________________________________________________________ 2. Is the organization of this document easy to follow? Yes No If "No," please suggest improvements that we can make: _________________________________________________________________________________________________ 3. Is there any application specific information that you would like to see in this document? (Check all that apply) EMI Termination recommendations Shock and vibration performance Other If "Other," please specify: _________________________________________________________________________________________________ 4. Are there any errors in this document? Yes No If "Yes", please specify (what and where): _________________________________________________________________________________________________ 5. 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