ABX0235/37/38/39 750kHz - 800MHz Low Phase Noise Multiplier XO Universal Low Phase Noise IC's FEATURES 1 16 SEL0^ XIN 2 15 SEL1^ XOUT 3 14 GND SEL3^ 4 13 CLKC SEL2^ 5 12 VDD OE 6 11 CLKT GND 7 10 GND GND 8 9 GND VDD / GND* SEL0^ / VDD* SEL1^ 12 11 10 9 DESCRIPTION ^: *: SEL OE XIN Oscillator Amplifier XOUT PLL by-pass SEL3^ 14 SEL2^ 15 OE 16 ABX023x 1 Q Q 2 3 4 GND 13 GND BLOCK DIAGRAM PLL (Phase Locked Loop) XOUT GND The ABX0235 (PECL with inverted OE), ABX0237 (CMOS), ABX0238 (PECL), and ABX0239 (LVDS) are high performance and low phase noise XO IC chips. They provide phase noise performance as low as -125dBc at 1kHz offset (at 155MHz) and a typical RMS jitter of 4pS RMS ( at 155MHz ). They accept fundamental parallel resonant mode crystals from 12 to 25MHz. GND * * * * * * VDD ABX023x * Selectable 750kHz to 800MHz range. Low phase noise output (@ 10kHz frequency offset, -140dBc/Hz for 19.44MHz, -127dBc/Hz for 106.25MHz, -125dBc/Hz for 155.52MHz, 110dBc/Hz for 622.08MHz). CMOS (ABX0237), PECL (ABX0235 and ABX0238) or LVDS (ABX0239) output. 12 to 25MHz crystal input. No external load capacitor required. Output Enable selector. Selectable 1/16 to 32x frequency multiplier. 3.3V operation. Available in 16-Pin (TSSOP or 3x3mm QFN). XIN * * PIN CONFIGURATION (Top View) 8 GND 7 CLKC 6 VDD 5 CLKT Internal pull-up On 3x3 package, ABX0235/38 do not have SEL0 available: Pin 10 is VDD, pin 11 is GND. However, ABX0237/39 have SEL0 (pin 10), and pin 11 is VDD. See pin assignment table for details. OUTPUT ENABLE LOGICAL LEVELS Part # ABX0238 ABX0235 ABX0237 ABX0239 OE 0 (Default) 1 0 State Output enabled Tri-state Tri-state 1 (Default) Output enabled OE input: Logical states defined by PECL levels for ABX0238 Logical states defined by CMOS levels for ABX0235/37/39 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 1 ABX0235/37/38/39 750kHz - 800MHz Low Phase Noise Multiplier XO Universal Low Phase Noise IC's FREQUENCY SELECTION TABLE SEL3 SEL2 SEL1 SEL0 Selected Multiplier 0 0 1 1 Fin x 32 0 1 1 0 Fin / 8 0 1 1 1 Fin x 2 1 0 0 1 Fin / 2 1 0 1 0 Fin / 16 1 0 1 1 Fin x 4 1 1 0 0 Fin / 4 1 1 0 1 Fin x 8 1 1 1 0 Fin x 16 1 1 1 1 No multiplication Note: SEL0 is not available (always "1") for ABX0235 and ABX0238 in 3x3mm package PIN DESCRIPTIONS ABX0235 and ABX0238 (see next page of ABX0237/39) Name TSSOP Pin number 3x3mm QFN Pin number Type XIN XOUT OE GND CLKT CLKC SEL0 SEL1 SEL2 SEL3 VDD 2 3 6 7,8,9,10,14 11 13 16 15 5 4 1, 12 12 13 16 1,2,3,4,8,11 5 7 Not available 9 15 14 6,10 I I I P O O I I I I P Description Crystal input. See Crystal Specifications on page 3. Crystal output. See Crystal Specifications on page 3. Output enable pin (see OE logic state table on page 1). Ground. True output PECL Complementary output PECL. Multiplier selector pins. These pins have an internal pull-up that will default SEL to `1' when not connected to GND. Power Supply. 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 2 ABX0235/37/38/39 750kHz - 800MHz Low Phase Noise Multiplier XO Universal Low Phase Noise IC's PIN DESCRIPTIONS ABX0237/39 (see previous page of ABX0235/38) Name TSSOP Pin number 3x3mm QFN Pin number Type XIN XOUT OE GND 2 3 6 7,8,9,10,14 12 13 16 1,2,3,4,8 I I I P CLKT 11 5 O CLKC 13 7 O SEL0 SEL1 SEL2 SEL3 VDD 16 15 5 4 1, 12 10 9 15 14 6,11 I I I I P Description Crystal input. See Crystal Specifications on page 3. Crystal output. See Crystal Specifications on page 3. Output enable pin (see OE logic state table on page 1). Ground. True output LVDS (ABX0239) (N/C for ABX0237) Complementary output LVDS (ABX0239) (CMOS out for ABX0237). Multiplier selector pins. These pins have an internal pull-up that will default SEL to `1' when not connected to GND. Power Supply. ELECTRICAL SPECIFICATIONS 1. Absolute Maximum Ratings PARAMETERS SYMBOL Supply Voltage Input Voltage, dc Output Voltage, dc Storage Temperature Ambient Operating Temperature* Junction Temperature Lead Temperature (soldering, 10s) ESD Protection, Human Body Model MIN. V DD VI VO TS TA TJ -0.5 -0.5 -65 -40 MAX. UNITS 4.6 V DD +0.5 V DD +0.5 150 85 125 260 2 V V V C C C C kV Exposure of the device under conditions beyond the limits specified by Maximum Ratings for extended periods may cause permanent damage to the device and affect product reliability. These conditions represent a stress rating only, and functional operations of the device at these or any other conditions above the operational limits noted in this specification is not implied. * Note: Operating Temperature is guaranteed by design for all parts (COMMERCIAL and INDUSTRIAL), but tested for COMMERCIAL grade only. 2. Crystal Specifications PARAMETERS Crystal Resonator Frequency Crystal Loading Rating Recommended ESR SYMBOL CONDITIONS MIN. F XIN C L (xtal) RE Parallel Fundamental Mode 12 TYP. MAX. UNITS 25 MHz pF 30 20 AT cut 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 3 ABX0235/37/38/39 750kHz - 800MHz Low Phase Noise Multiplier XO Universal Low Phase Noise IC's 3. General Electrical Specifications PARAMETERS SYMBOL Supply Current, Dynamic (with Loaded Outputs) I DD Operating Voltage V DD CONDITIONS PECL/LVDS/CMOS MIN. TYP. MAX. 50 50 50 25/25/15 65/45/30 100/80/40 3.63 55 55 55 Fout<24MHz 24MHz<Fout<96MHz 96MHz<Fout<800MHz 2.97 @ 50% V DD (CMOS) @ 1.25V (LVDS) @ V DD - 1.3V (PECL) Output Clock Duty Cycle 45 45 45 Short Circuit Current 50 UNITS mA V % mA 4. Jitter Specifications PARAMETERS Period jitter RMS 1 Period jitter Peak-toPeak 1 Integrated jitter RMS 2 CONDITIONS FREQUENCY With capacitive decoupling between VDD and GND. Over 10,000 cycles. With capacitive decoupling between VDD and GND. Over 10,000 cycles. Integrated 12 kHz to 20 MHz MIN. TYP. 19.44MHz 77.76MHz 2.2 3.5 155.52MHz 4.3 622.08MHz 5.0 19.44MHz 77.76MHz 17 25 155.52MHz 27 622.08MHz 35 155.52MHz 622.08MHz 2.6 2.5 MAX. UNITS ps ps 4 4 ps 5. Phase Noise Specifications PARAMETERS FREQUENCY @10Hz @100Hz @1kHz @10kHz @100kHz UNITS Phase Noise 2 relative to carrier (typical) 19.44MHz 77.76MHz 155.52MHz 622.08MHz -80 -72 -65 -55 -108 -103 -95 -85 -132 -122 -120 -109 -142 -130 -125 -115 -150 -125 -121 -110 dBc/Hz 6. CMOS Electrical Characteristics PARAMETERS Output drive current Output Clock Rise/Fall Time SYMBOL CONDITIONS MIN. I OH I OL V OH = V DD -0.4V, V DD =3.3V V OL = 0.4V, V DD = 3.3V 0.3V ~ 3.0V with 15 pF load 10 10 TYP. 2.4 MAX. UNITS mA mA ns 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 4 ABX0235/37/38/39 750kHz - 800MHz Low Phase Noise Multiplier XO Universal Low Phase Noise IC's 7. LVDS Electrical Characteristics PARAMETERS SYMBOL Output Differential Voltage V DD Magnitude Change Output High Voltage Output Low Voltage Offset Voltage Offset Magnitude Change V OD V OH V OL V OS Power-off Leakage I OXD Output Short Circuit Current I OSD CONDITIONS V OD R L = 100 (see figure) MIN. TYP. MAX. UNITS 247 -50 355 454 50 1.6 0.9 1.125 0 V OS V out = V DD or GND V DD = 0V 1.4 1.1 1.2 3 1.375 25 mV mV V V V mV 1 10 uA -5.7 -8 mA 8. LVDS Switching Characteristics PARAMETERS SYMBOL CONDITIONS MIN. TYP. MAX. UNITS Differential Clock Rise Time tr 0.2 0.7 1.0 ns Differential Clock Fall Time tf R L = 100 C L = 10 pF (see figure) 0.2 0.7 1.0 ns LVDS Levels Test Circuit LVDS Switching Test Circuit OUT OUT CL = 10pF 50 VOD VDIFF VOS RL = 100 50 CL = 10pF OUT OUT LVDS Transistion Time Waveform OUT 0V (Differential) OUT 80% VDIFF 80% 0V 20% 20% tR tF 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 5 ABX0235/37/38/39 750kHz - 800MHz Low Phase Noise Multiplier XO Universal Low Phase Noise IC's 9. PECL Electrical Characteristics PARAMETERS SYMBOL CONDITIONS MIN. V OH V OL R L = 50 to (V DD - 2V) (see figure) V DD - 1.025 Output High Voltage Output Low Voltage MAX. UNITS V DD - 1.620 V V 10. PECL Switching Characteristics PARAMETERS SYMBOL Clock Rise Time Clock Fall Time Duty Cycle tr tf CONDITIONS MIN. 0.8V ~ 2.0V 2.0V ~ 0.8V Measured @ 1.4V 40 PECL Levels Test Circuit OUT MAX. UNITS 50 1.5 1.5 60 ns ns % PECL Output Skew OUT VDD 50 TYP. 2.0V 50% 50 OUT tSKEW OUT PECL Transistion Time Waveform DUTY CYCLE 45 - 55% 55 - 45% OUT 80% 50% 20% OUT tR tF 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 6 ABX0235/37/38/39 750kHz - 800MHz Low Phase Noise Multiplier XO Universal Low Phase Noise IC's PACKAGE INFORMATION 16 PIN TSSOP ( mm ) Symbol A A1 B C D E H L e Min. Max. 1.20 0.05 0.15 0.19 0.30 0.09 0.20 4.90 5.10 4.30 4.50 6.40 BSC 0.45 0.75 0.65 BSC E H D A A1 C e B L 3x3mm QFN 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 7 ABX0235/37/38/39 750kHz - 800MHz Low Phase Noise Multiplier XO Universal Low Phase Noise IC's ORDERING INFORMATION For part ordering, please contact our Sales Department: 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 PART NUMBER The order number for this device is a combination of the following: Device number, Package type and Operating temperature range ABX023x OC TEMPERATURE C=COMMERCIAL I=INDUSTRAL PART NUMBER PACKAGE TYPE O=TSSOP Q=QFN Order Number Marking Package Option ABX0235OC-T ABX0235OC ABX0235QC-T ABX0235QC ABX0235OC ABX0235OC ABX0235QC ABX0235QC TSSOP - Tape and Reel TSSOP - Tube QFN - Tape and Reel QFN - Tube ABX0237OC-T ABX0237OC ABX0237QC-T ABX0237QC ABX0237OC ABX0237OC ABX0237QC ABX0237QC TSSOP - Tape and Reel TSSOP - Tube QFN - Tape and Reel QFN - Tube ABX0238OC-T ABX0238OC ABX0238QC-T ABX0238QC ABX0238OC ABX0238OC ABX0238QC ABX0238QC TSSOP - Tape and Reel TSSOP - Tube QFN - Tape and Reel QFN - Tube ABX0239OC-T ABX0239OC ABX0239QC-T ABX0239QC ABX0239OC ABX0239OC ABX0239QC ABX0239QC TSSOP - Tape and Reel TSSOP - Tube QFN - Tape and Reel QFN - Tube Abracon Corporation, reserves the right to make changes in its products or specifications, or both at any time without notice. The information furnished by Abracon is believed to be accurate and reliable. However, Abracon makes no guarantee or warranty concerning the accuracy of said information and shall not be responsible for any loss or damage of whatever nature resulting from the use of, or reliance upon this product. LIFE SUPPORT POLICY: Abracon's products are not authorized for use as critical components in life support devices or systems without the express written approval of the President of Abracon Corporation. 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 8