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ICS4231M-03LF

Description
IC clock generator low emi 8soic
Categorysemiconductor    Analog mixed-signal IC   
File Size131KB,7 Pages
ManufacturerIDT (Integrated Device Technology, Inc.)
Websitehttp://www.idt.com/
Environmental Compliance  
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ICS4231M-03LF Overview

IC clock generator low emi 8soic

DATASHEET
LOW EMI CLOCK GENERATOR
Description
The ICS4231-03 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 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.
IDT offers a complete line of EMI reducing clock
generators. Consult us when you need to remove
crystals and oscillators from your board.
ICS4231-03
Features
Pin and function compatible to Cypress W42C31-03
Packaged in 8-pin SOIC (Pb free)
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
Peak reduction by 8dB - 14dB typical on 3rd - 19th
odd harmonics
Spread percentage selections of
±
1.875%,
±
1.0%,
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
X2
Clock Buffer/
Crystal
Oscillator
GND
IDT™ / ICS™
LOW EMI CLOCK GENERATOR
1
ICS4231-03
REV C 051310

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Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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