1726M11 datasheet, PDF - EEWORLD Datasheet

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1726M11: DescriptionLow EMI Clock Generator; File Size105KB，7 Pages; ManufacturerICS ( IDT ); Websitehttp://www.icst.com

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1726M11 Overview

Low EMI Clock Generator

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PRELIMINARY INFORMATION

ICS1726-11

Low EMI Clock Generator

Description

The ICS1726-11 generates a low EMI output clock

from a clock or crystal input. The part is designed to

dither the LCD interface clock for PDAs, printers,

scanners, modems, copiers, and others. Using ICS’

proprietary mix of analog and digital Phase-Locked

Loop (PLL) technology, the device spreads the

frequency spectrum of the output, reducing the

frequency amplitude peaks by several dB. The

ICS1726-11 offers both centered and down spread

from a high-speed clock input.

ICS offers many other clocks for computers and

computer peripherals. Consult us when you need to

remove crystals and oscillators from your board.

Features

•

Packaged in 8-pin SOIC/TSSOP

Provides a spread spectrum output clock

Supports flat panel controllers

Accepts a clock or crystal input (provides same

frequency dithered output)

Input frequency range of 16 to 32 MHz

Output frequency range of 16 to 32 MHz

Center and down spread

Peak reduction by 8 dB to 16 dB typical on 3rd

through 19th odd harmonics

Low EMI feature can be disabled

Includes power down

Operating voltage of 3.3 V

Advanced, low-power CMOS process

Block Diagram

VDD

S1:0

PLL Clock

Synthesis

and Spread

Spectrum

Circuitry

SSCLK

X1/CLK

Clock Buffer/

Crystal

Ocsillator

External caps required for with crystal

for accurate tuning of the clock

GND

MDS 1726-11 A

Integrated Circuit Systems, Inc.

●

525 Race Street, San Jose, CA 95126

●

Revision 092905

tel (408) 297-1201

●

www.icst.com

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