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SM8760CA

Part Number	SM8760CA
Manufacturer	Nippon Precision Circuits
Description	Spread Spectrum Clock Generator
Published	Nov 12, 2008
Detailed Description	SM8760CA Spread Spectrum Clock Generator OVERVIEW The SM8760CA is a compact clock generator IC with 4-times multiplicat...
Datasheet	SM8760CA PDF File

Overview

SM8760CA Spread Spectrum Clock Generator OVERVIEW The SM8760CA is a compact clock generator IC with 4-times multiplication clock signal output that has a spread spectrum (SS) function to reduce undesirable EMI radiation.
The SM8760CA has built-in crystal oscillator circuit, PLL, and loop ﬁlter.
It accepts an input clock signal, generated using an external crystal or direct www.
DataSheet4U.
com external clock input, and outputs 1 SS-modulated 4-times multiplication clock signal and 1 unmodulated reference signal.
In addition, the SM8760CA features control pins to select SS modulation function ON/OFF and power-down modes.
FEATURES I I I PINOUT (Top view) I I I I I I Spread spectrum clock output to reduce EMI Modulation rate: Center spread: ± 1.
0% Input frequency • Using crystal element connection: 12.
75MHz (fundamental frequency) • Using external input clock: 12.
75MHz Multiplication: 4-time multiplication Operating supply voltage: 3.
3 ± 0.
3V Low jitter: 350ps typ (Cycle-to-Cycle) Functions: Power-down function, SS modulation ON/OFF Mode control pins: Pull-up resistors built-in Package: 8-pin VSOP XT XTN PDN ENS 1 8 4 5 VDD CLKOUT VSS REFOUT APPLICATIONS I I I I I Printer (laser/inkjet) Photocopiers, scanners LCD/PDP displays Projectors Miscellaneous electronic equipment PACKAGE DIMENSIONS (Unit: mm) 0 to 10 ° ORDERING INFORMATION 4.
4 ± 0.
2 0.
5 ± 0.
2 + 0.
1 0.
05 0.
15 − Device SM8760CAV Package 8-pin VSOP 0.
575TYP 3.
1 ± 0.
3 0.
65 0.
10 0.
22 ± 0.
1 0.
1 ± 0.
05 1.
15 ± 0.
05 6.
4 ± 0.
3 0.
12 M SEIKO NPC CORPORATION —1 SM8760CA BLOCK DIAGRAM VDD VSS REFOUT XT www.
DataSheet4U.
com XTN X'tal OSC R Counter Phase Detector & Charge Pump LPF N Counter (PLL) VCO Post Divider CLKOUT SS Control Mode, R/N Counter setting, Divider setting, etc.
SSC Control Control Logic ENS PDN PIN DESCRIPTION Number 1 2 3 4 5 6 7 8 Name XT XTN PDN ENS REFOUT VSS CLKOUT VDD I/O I O I I O GND O PWR Function Crystal oscillator element connection or external clock inpu...

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SM8760CA Spread Spectrum Clock Generator - Nippon Precision Circuits

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