ICS7151 datasheet(1/9 Pages) IDT

部品番号	ICS7151

部品情報	SPREAD SPECTRUM CLOCK GENERATOR

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メーカー	IDT [Integrated Device Technology]

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DATASHEET

SPREAD SPECTRUM CLOCK GENERATOR

ICS7151

IDT™ / ICS™ SPREAD SPECTRUM CLOCK GENERATOR

1

ICS7151

REV J 051310

Description

The ICS7151-10, -20, -40, and -50 are clock generators for

EMI (Electro Magnetic Interference) reduction (see below

for frequency ranges and multiplier ratios). Spectral peaks

can be attenuated by slightly modulating the oscillation

frequency. Both down and center spread profiles are

selectable. Down spread maintains an average frequency

less than an unspread clock, and will not exceed the

maximum frequency of an unspread clock.

Features

• Operating voltage of 3.3 V ±0.3 V

• Packaged in 8-pin SOIC

• Pb (lead) free package, RoHS compliant

• Input frequency range of 16.5 to 33.4 MHz

• Output frequency ranges of 8.3 to 16.7 MHz, 16.5 to 33.4

MHz, 33.3 to 66.7 MHz, 66.6 to 133.4 MHz

• Provides a spread spectrum clock output (±0.5%, ±1.5%

center spread; -1.0%, -3.0% down spread)

• Multiplication rates of x1/2, x1, x2, and x4

• Advanced, low-power CMOS process

Block Diagram

Product Lineup

Product

Input Frequency Range

Multiplier Ratio

Output Frequency Range

ICS7151M-10, ICS7151MI-10

16.5 MHz to 33.4 MHz

X1

16.5 MHz to 33.4 MHz

ICS7151M-20, ICS7151MI-20

16.5 MHz to 33.4 MHz

X2

33.3 MHz to 66.7 MHz

ICS7151M-40, ICS7151MI-40

16.5 MHz to 33.4 MHz

X4

66.6 MHz to 133.4 MHz

ICS7151M-50, ICS7151MI-50

16.5 MHz to 33.4 MHz

X1/2

8.3 MHz to 16.7 MHz

PLL Clock

Synthesis

and Spread

Spectrum

Circuitry

S1:0

ENS

CKOUT

2

GND

VDD

Clock Buffer/

Crystal

Ocsillator

XIN

XOUT

External caps required with crystal for

accurate tuning of the clock

同様の部品番号 - ICS7151

メーカー	部品番号	データシート	部品情報
Integrated Circuit Syst...	ICS7151	169Kb / 8P	Spread Spectrum Clock Generator Revision 012306
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	ICS7151AM-50LFT	155Kb / 8P	Spread Spectrum Clock Generator

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