ICS181-03 datasheet(1/8 Pages) RENESAS

部品番号	ICS181-03

部品情報	LOW EMI CLOCK GENERATOR

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メーカー	RENESAS [Renesas Technology Corp]

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DATASHEET

LOW EMI CLOCK GENERATOR

ICS181-03

IDT™ / ICS™ LOW EMI CLOCK GENERATOR

1

ICS181-03

REV C 051310

Description

The ICS181-03 generates a low EMI output clock from

a clock or crystal input. The device uses IDT’s

proprietary mix of analog and digital Phase-Locked

Loop (PLL) technology to spread the frequency

spectrum of the output, thereby reducing the frequency

amplitude peaks by several dB.

The ICS181-03 offers down spread selection of -1.25%

and -3.75%. Refer to the MK1714-01/02 for the widest

selection of input frequencies and multipliers.

IDT offers a complete line of EMI reducing clock

generators. Consult us when you need to remove

crystals and oscillators from your board.

Features

• Pin and function compatible to Cypress W181-03

• Packaged in 8-pin SOIC

• Provides a spread spectrum output clock

• Accepts a clock input and provides same frequency

dithered output

• Input frequency of 46 to 75 MHz for Clock input

• Peak reduction by 7dB - 14dB typical on 3rd - 19th

odd harmonics

• Spread percentage selection for -1.25% and -3.75%

• Operating voltage of 3.3 V and 5 V

• Advanced, low-power CMOS process

Block Diagram

PLL Clock

Synthesis

and Spread

Spectrum

Circuitry

SS%

CLK

GND

VDD

SSON#

CLK

Clock Buffer

FS1

同様の部品番号 - ICS181-03

メーカー	部品番号	データシート	部品情報
Integrated Circuit Syst...	ICS181-03	98Kb / 6P	Low EMI Clock Generator Revision 110404

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