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ABV2089 Datasheet(PDF) 1 Page - Abracon Corporation |
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ABV2089 Datasheet(HTML) 1 Page - Abracon Corporation |
1 / 7 page Preliminary ABV2088/89 Low Phase Noise VCXO (9.5-65MHz) 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 1 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. BLOCK DIAGRAM PIN CONFIGURATION OUTPUT SELECTION AND ENABLE OE_SELECT OE_CTRL State 0 Tri-state 0 1 (Default) Output enabled 0 (Default) Output enabled 1 (Default) 1 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” OUTPUT FREQUENCY DIVIDE BY TWO SELECTOR S2 Output 0 Intput/2 1 Input O Q ABV208X Block Diagram Q Oscillator Amplifier with Integrated Varicaps S2 VCON X+ X- 1 2 3 4 5 6 7 8 VDD 9 10 11 12 13 14 15 16 XIN XOUT DNC S2 OE VCON GND DNC DNC GNDBUF QBAR VDDBUF Q GNDBUF GND |
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