ABV2088

P reliminary A BV2088/89 L ow Phase Noise VCXO (9.5-65MHz) F EATURES • • • • • • • 1 9MHz to 65MHz fundamental crystal input. O utput range: 9.5MHz – 65MHz C omplementary outputs: PECL or LVDS output. S electable OE Logic (enable high or enable low). I ntegrated variable capacitors. S upports 2.5V or 3.3V Power Supply. A vailable in 16 pin TSSOP package. PIN CONFIGURATION VDD XIN XOUT DNC S2 OE 1 2 16 15 DNC DNC GNDBUF QBAR VDDBUF Q GNDBUF GND ABV208x 3 4 5 6 7 8 14 13 12 11 10 9 D ESCRIPTION T he ABV2088 (PECL) and ABV2089 (LVDS) are VCXO ICs specifically designed to work with fundamental crystals between 19MHz and 65MHz. The selectable divide by two feature extends the operation range from 9.5MHz to 65MHz. They require very low current into the crystal resulting in better overall stability. The OE logic feature allows selection of enable high or enable low. VCON GND OUTPUT SELECTION AND ENABLE O E_SELECT OE_CTRL S tate 0 1 ( Default) B LOCK DIAGRAM 0 1 ( Default) 0 ( Default) 1 T ri-state Output enabled Output enabled Tri-state O Q V CON X+ XOscillator Amplifier with Integrated Varicaps Q I nput selection: Bond to GND to set to “0”, bond to VDD to set to “1” No connection results to “default” setting through internal pull-up/-down. OE_CTRL: Logical states defined by PECL levels if OE_SELECT is “1” Logical states defined by CMOS levels if OE_SELECT is “0” S2 O UTPUT FREQUENCY DIVIDE BY TWO SELECTOR S2 Output ABV208X Block Diagram 0 1 I ntput/2 I nput 3 0332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 w ww.Abracon.com 0 3/21/05 Page 1 P reliminary A BV2088/89 L ow Phase Noise VCXO (9.5-65MHz) P IN AND PAD ASSIGNMENT N ame V DD X IN X OUT D NC S2 O E_CTRL V CON G ND G NDBUF Q V DDBUF Q BAR G NDBUF D NC D NC Pin# 1 2 3 4 5 6 8 9 10 11 12 13 14 15 16 Description Power Supply. Crystal input. See Crystal Specification on page 3. Crystal output. See Crystal Specification on page 3. Do Not Connect. Output Divide by Two selector pin. See the OUTPUT DIVIDE BY TWO SELECTOR Table on page 1. Output Enable input. See OUTPUT SELECTION AND ENABLE TABLE on page 1. Voltage control input. Ground. Ground for output buffer circuitry. PECL or LVDS output. Power supply for output buffer circuitry. Complementary PECL or LVDS output. Ground for output buffer circuitry. Do Not Connect. Do Not Connect. E LECTRICAL SPECIFICATIONS 1. Absolute Maximum Ratings P ARAMETERS S upply Voltage I nput Voltage, dc O utput Voltage, dc S torage Temperature A mbient Operating Temperature* J unction Temperature L ead Temperature (soldering, 10s) E SD Protection, Human Body Model SYMBOL V DD VI VO TS TA TJ MIN. - 0.5 - 0.5 - 65 - 40 MAX. 4 .6 V DD +0.5 V DD +0.5 150 85 1 25 260 2 UNITS V V V °C °C °C °C kV E xposure 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. * N ote : Operating Temperature is guaranteed by design for all parts (COMMERCIAL and INDUSTRIAL), but tested for COMMERCIAL grade only. 3 0332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 w ww.Abracon.com 0 3/21/05 Page 2 P reliminary A BV2088/89 L ow Phase Noise VCXO (9.5-65MHz) 2 . Crystal Specifications P ARAMETERS C rystal Resonator Frequency C rystal Loading Rating I nterelectrode Capacitance R ecommended ESR SYMBOL F XIN C L (xtal) C0 RE CONDITIONS F undamental MIN. 19 TYP. 8 MAX. 65 5 30 UNITS MHz pF pF Ω A T cut 3 . Voltage Control Crystal Oscillator (3.3V) P ARAMETERS V CXO Stabilization Time * V CXO Tuning Range C LK output pullability O n-chip Varicaps control range L inearity V CXO Tuning Characteristic V CON input impedance V CON modulation BW SYMBOL T VCXOSTB CONDITIONS F rom power valid F XIN = 1 9 – 65MHz; XTAL C 0 /C 1 < 2 50 0V ≤ V CON ≤ 3 .3V VCON=1.65V, ± 1.65V V CON = 0 to 3.3V MIN. TYP. MAX. 10 UNITS ms ppm ppm pF % ppm/V kΩ kHz 200* ± 100* 4 – 18* 10* 65 60 0 V ≤ V CON ≤ 3 .3V, -3dB 25 N ote: Parameters denoted with an asterisk (*) represent nominal characterization data and are not production tested to any specific limits. 4 . General Electrical Specifications P ARAMETERS S upply Current (Loaded Outputs) O perating Voltage O utput Clock Duty Cycle S hort Circuit Current SYMBOL I DD V DD CONDITIONS P ECL/LVDS @ 1 .25V (LVDS) @ V DD – 1 .3V (PECL) MIN. TYP. MAX. 100/80 UNITS mA V % mA 2 .97 45 45 50 50 ± 50 3.63 55 55 3 0332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 w ww.Abracon.com 0 3/21/05 Page 3 P reliminary A BV2088/89 L ow Phase Noise VCXO (9.5-65MHz) 5 . Jitter Specifications P ARAMETERS P eriod jitter RMS at 27MHz P eriod jitter peak-to-peak at 27MHz A ccumulated jitter RMS at 27MHz A ccumulated jitter peak-to-peak at 27MHz R andom Jitter M easured on Wavecrest SIA 3000 CONDITIONS With capacitive decoupling between VDD and GND. Over 10,000 cycles With capacitive decoupling between VDD and GND. Over 1,000,000 cycles. “RJ” measured on Wavecrest SIA 3000 MIN. TYP. 2.3 18.5 2.3 24 2.3 MAX. 20 UNITS ps 25 ps ps 6 . Phase Noise Specifications P ARAMETERS P hase Noise relative to carrier FREQUENCY 27MHz @10Hz -75 @100Hz -100 @1kHz -125 @10kHz -140 @100kHz -145 UNITS dBc/Hz N ote: Phase Noise measured on Agilent E5500 3 0332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 w ww.Abracon.com 0 3/21/05 Page 4 P reliminary A BV2088/89 L ow Phase Noise VCXO (9.5-65MHz) 7 . LVDS Electrical Characteristics P ARAMETERS O utput Differential Voltage V DD M agnitude Change O utput High Voltage O utput Low Voltage O ffset Voltage O ffset Magnitude Change P ower-off Leakage O utput Short Circuit Current SYMBOL V OD ∆ V OD V OH V OL V OS ∆ V OS I OXD I OSD CONDITIONS MIN. 2 47 - 50 TYP. 355 MAX. 454 50 UNITS mV mV V V V mV uA mA R L = 1 00 Ω ( see figure) 1 .4 0 .9 1 .125 0 1.1 1.2 3 ±1 - 5.7 1.6 1.375 25 ± 10 -8 V out = V DD o r GND V DD = 0 V 8 . LVDS Switching Characteristics P ARAMETERS D ifferential Clock Rise Time D ifferential Clock Fall Time LVDS Levels Test Circuit OUT SYMBOL tr tf CONDITIONS R L = 1 00 Ω C L = 1 0 pF (see figure) MIN. 0 .2 0.2 TYP. 0.7 0.7 MAX. 1.0 1.0 UNITS ns ns LVDS Switching Test Circuit OUT 50Ω CL = 10pF VOD VOS VDIFF RL = 100Ω 50Ω CL = 10pF OUT OUT LVDS Transistion Time Waveform OUT 0V (Differential) OUT 80% VDIFF 20% 0V 80% 20% tR tF 3 0332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 w ww.Abracon.com 0 3/21/05 Page 5 P reliminary A BV2088/89 L ow Phase Noise VCXO (9.5-65MHz) 9 . PECL Electrical Characteristics P ARAMETERS O utput High Voltage O utput Low Voltage SYMBOL V OH V OL CONDITIONS R L = 5 0 Ω t o (V DD – 2 V) (see figure) MIN. V DD – 1 .025 MAX. V DD – 1 .620 UNITS V V 1 1. PECL Switching Characteristics P ARAMETERS C lock Rise Time C lock Fall Time SYMBOL tr tf PECL Levels Test Circuit CONDITIONS @ 20/80% - PECL @ 80/20% - PECL MIN. TYP. 0.6 0.5 MAX. 1.5 1.5 UNITS ns ns PECL Output Skew VDD OUT OUT 50Ω 2.0V 50% 50Ω OUT OUT tSKEW PECL Transistion Time Waveform DUTY CYCLE 45 - 55% 55 - 45% OUT 80% 50% 20% OUT tR tF 3 0332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 w ww.Abracon.com 0 3/21/05 Page 6 P reliminary A BV2088/89 L ow Phase Noise VCXO (9.5-65MHz) P ACKAGE 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 e B C L O RDERING INFORMATION F or part ordering, please contact our Sales Department: 3 0332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 P ART NUMBER T he order number for this device is a combination of the following: Device number, Package type and Operating temperature range A BV208x P ART NUMBER xC T EMPERATURE C=COMMERCIAL I=INDUSTRIAL P ACKAGE TYPE O=TSSOP O rder Number A BV2088OC-T ABV2088OC ABV2089OC-T ABV2089OC Marking ABV2088 OC ABV2088 OC ABV2089 OC ABV2089 OC Package Option TSSOP TSSOP TSSOP TSSOP – Tape and Reel – Tube – Tape and Reel – Tube A bracon 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. L IFE 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. 3 0332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 w ww.Abracon.com 0 3/21/05 Page 7