Datasheet > ICS4231-03

ICS4231-03

更新时间： 2024-11-14 04:22:55

品牌	Logo	应用领域
矽成 - ICSI		时钟发生器
页数	文件大小	规格书
6页	98K
描述
Low EMI Clock Generator

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ICS4231-03 数据手册

ICS4231-03

Low EMI Clock Generator

Description

Features

The ICS4231-03 generates a low EMI output clock

from a clock or crystal input. The device uses ICS’

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.

• Pin and function compatible to Cypress W42C31-03

• Packaged in 8-pin SOIC (Pb free available)

• Provides a spread spectrum output clock

• Accepts a clock or crystal input and provides same

frequency dithered output

• Input clock frequency of 10 to 33 MHz

The ICS4231-03 offers four different center and down

spread selections. Refer to the MK1714-01/02 for the

widest selection of input frequencies and multipliers.

• Peak reduction by 8dB - 14dB typical on 3rd - 19th

odd harmonics

• Spread percentage selections of ±1.875%, ±1.0%,

ICS offers a complete line of EMI reducing clock

generators. Consult us when you need to remove

crystals and oscillators from your board.

and -2.0%

• Operating voltage of 5V

• Advanced, low-power CMOS process

Block Diagram

VDD

FS1:0

OE#

PLL Clock

Synthesis

and Spread

Spectrum

Circuitry

CLK

X1/CLKIN

Clock Buffer/

Crystal

Oscillator

GND

MDS 4231-03 A

Revision 110404

Integrated Circuit Systems● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201● www.icst.com

12 3 4 5 6

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