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SM8761AAS датащи(PDF) 1 Page - Nippon Precision Circuits Inc |
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SM8761AAS датащи(HTML) 1 Page - Nippon Precision Circuits Inc |
1 / 11 page SM8761 series NIPPON PRECISION CIRCUITS INC.—1 Spread Spectrum Clock Generator OVERVIEW The SM8761 series are compact clock generator ICs that have a spread spectrum (SS) function to reduce unde- sirable EMI radiation. They have a built-in crystal oscillator circuit, PLL, and loop filter. They accept an input clock signal, generated using an external crystal or direct external clock input, and output an SS-modulated clock signal. In addition, versions are available for center spread and down spread modulation mode, and all have a mode control pin to select the SS modulation function. FEATURES I Spread spectrum clock output to reduce EMI I Correspond to wide range of output frequency I Low jitter I Operating supply voltage: 3.3 ± 0.3V I Multiplication: 1-time multiplication I Package: 8-pin SOP PINOUT (Top view) APPLICATIONS I Printer (laser/inkjet) I Photocopiers, scanners I LCD/PDP displays I Projectors I Miscellaneous electronic equipment PACKAGE DIMENSIONS (Unit: mm) ORDERING INFORMATION SM8761AA SM8761AB Spectrum modulation mode Down spread Center spread Spectrum modulation rate*1 – 1.0% to – 3.8% ± 0.75% to ± 2.25% Input frequency Crystal element connection 20MHz to 40MHz 12MHz to 32MHz External input clock 20MHz to 108MHz 12MHz to 32MHz Output frequency 20MHz to 108MHz 12MHz to 32MHz Multiplication 1-time multiplication 1-time multiplication Jitter (Cycle-to-Cycle) 200ps (typ) @33MHz 200ps (typ) @16MHz 120ps (typ) @75MHz *1. The modulation rate that can be selected varies with the input frequency. 1 VDD CLKOUT TSTN XTN 4 2 3 MSEL0 MSEL1 8 7 6 5 VSS XT Device Package SM8761AAS 8-pin SOP SM8761ABS 5.2 ± 0.3 0.4 ± 0.1 0.15 + 0.1 − 0.05 0 to 10° 0.695typ 1.27 0.12 M 0.10 |
Аналогичный номер детали - SM8761AAS |
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Аналогичное описание - SM8761AAS |
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