Preliminary ABV2088/89 Low Phase Noise VCXO (9.5-65MHz) FEATURES 19MHz to 65MHz fundamental crystal input. Output range: 9.5MHz – 65MHz Complementary outputs: PECL or LVDS output. Selectable OE Logic (enable high or enable low). Integrated variable capacitors. Supports 2.5V or 3.3V Power Supply. Available in 16 pin TSSOP package. DESCRIPTION The 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. VDD 1 16 DNC XIN 2 15 DNC XOUT 3 14 GNDBUF DNC 4 13 QBAR S2 5 12 VDDBUF OE 6 11 Q VCON 7 10 GNDBUF GND 8 9 OE_SELECT 1 (Default) O Q VCON X+ Oscillator Amplifier with Integrated Varicaps X- ABV208X Block Diagram GND OUTPUT SELECTION AND ENABLE 0 BLOCK DIAGRAM ABV208x • • • • • • • PIN CONFIGURATION OE_CTRL 0 1 (Default) 0 (Default) 1 State Tri-state Output enabled Output enabled Tri-state Input 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” Q S2 OUTPUT FREQUENCY DIVIDE BY TWO SELECTOR S2 Output 0 1 Intput/2 Input 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 1 Preliminary ABV2088/89 Low Phase Noise VCXO (9.5-65MHz) PIN AND PAD ASSIGNMENT Name Pin# VDD XIN XOUT DNC 1 2 3 4 S2 5 OE_CTRL VCON GND GNDBUF Q VDDBUF QBAR GNDBUF DNC DNC 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. ELECTRICAL SPECIFICATIONS 1. Absolute Maximum Ratings PARAMETERS Supply Voltage Input Voltage, dc Output Voltage, dc Storage Temperature Ambient Operating Temperature* Junction Temperature Lead Temperature (soldering, 10s) ESD Protection, Human Body Model SYMBOL V DD VI VO TS TA TJ MIN. -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. 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 2 Preliminary ABV2088/89 Low Phase Noise VCXO (9.5-65MHz) 2. Crystal Specifications PARAMETERS Crystal Resonator Frequency Crystal Loading Rating Interelectrode Capacitance Recommended ESR SYMBOL CONDITIONS F XIN C L (xtal) C0 RE Fundamental MIN. TYP. 19 MAX. UNITS 65 MHz pF pF 8 5 30 AT cut Ω 3. Voltage Control Crystal Oscillator (3.3V) PARAMETERS VCXO Stabilization Time * SYMBOL CONDITIONS T VCXOSTB From power valid F XIN = 19 – 65MHz; XTAL C 0 /C 1 < 250 0V ≤ VCON ≤ 3.3V VCON=1.65V, ±1.65V VCON = 0 to 3.3V VCXO Tuning Range CLK output pullability On-chip Varicaps control range Linearity VCXO Tuning Characteristic VCON input impedance VCON modulation BW MIN. TYP. MAX. UNITS 10 ms 200* ppm ±100* 4 – 18* 10* 65 60 0V ≤ VCON ≤ 3.3V, -3dB ppm pF % ppm/V kΩ kHz 25 Note: Parameters denoted with an asterisk (*) represent nominal characterization data and are not production tested to any specific limits. 4. General Electrical Specifications PARAMETERS Supply Current (Loaded Outputs) Operating Voltage Output Clock Duty Cycle Short Circuit Current SYMBOL I DD CONDITIONS MIN. TYP. PECL/LVDS V DD @ 1.25V (LVDS) @ V DD – 1.3V (PECL) 2.97 45 45 50 50 ±50 MAX. UNITS 100/80 mA 3.63 55 55 V % mA 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 3 Preliminary ABV2088/89 Low Phase Noise VCXO (9.5-65MHz) 5. Jitter Specifications PARAMETERS CONDITIONS Period jitter RMS at 27MHz Period jitter peak-to-peak at 27MHz Accumulated jitter RMS at 27MHz Accumulated jitter peak-to-peak at 27MHz MIN. With capacitive decoupling between VDD and GND. Over 10,000 cycles MAX. 2.3 18.5 With capacitive decoupling between VDD and GND. Over 1,000,000 cycles. 20 2.3 24 “RJ” measured on Wavecrest SIA 3000 Random Jitter TYP. 25 2.3 UNITS ps ps ps Measured on Wavecrest SIA 3000 6. Phase Noise Specifications PARAMETERS Phase Noise relative to carrier FREQUENCY @10Hz @100Hz @1kHz @10kHz @100kHz UNITS 27MHz -75 -100 -125 -140 -145 dBc/Hz Note: Phase Noise measured on Agilent E5500 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 4 Preliminary ABV2088/89 Low Phase Noise VCXO (9.5-65MHz) 7. LVDS Electrical Characteristics PARAMETERS SYMBOL Output Differential Voltage V DD Magnitude Change MIN. TYP. MAX. UNITS V OD 247 355 454 mV ∆V OD -50 50 mV 1.6 V Output High Voltage V OH Output Low Voltage V OL Offset Voltage CONDITIONS 1.4 R L = 100 Ω (see figure) 0.9 1.1 V OS 1.125 1.2 1.375 V Offset Magnitude Change ∆V OS 0 3 25 mV Power-off Leakage I OXD ±1 ±10 uA Output Short Circuit Current I OSD -5.7 -8 mA V out = V DD or GND V DD = 0V V 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 Ω 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 50Ω VOD VDIFF VOS RL = 100Ω 50Ω 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 Preliminary ABV2088/89 Low Phase Noise VCXO (9.5-65MHz) 9. PECL Electrical Characteristics PARAMETERS SYMBOL CONDITIONS MIN. Output High Voltage V OH V DD – 1.025 Output Low Voltage V OL R L = 50 Ω to (V DD – 2V) (see figure) MAX. UNITS V V DD – 1.620 V 11. PECL Switching Characteristics PARAMETERS SYMBOL CONDITIONS MIN. TYP. MAX. UNITS Clock Rise Time tr @20/80% - PECL 0.6 1.5 ns Clock Fall Time tf @80/20% - PECL 0.5 1.5 ns PECL Levels Test Circuit OUT PECL Output Skew OUT VDD 50Ω 2.0V 50% 50Ω 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 Preliminary ABV2088/89 Low Phase Noise VCXO (9.5-65MHz) 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 L B 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 ABV208x xC PART NUMBER TEMPERATURE C=COMMERCIAL I=INDUSTRIAL PACKAGE TYPE O=TSSOP Order Number Marking Package Option ABV2088OC-T ABV2088OC ABV2089OC-T ABV2089OC ABV2088 OC ABV2088 OC ABV2089 OC ABV2089 OC TSSOP TSSOP TSSOP TSSOP – Tape and Reel – Tube – Tape and Reel – 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 7