ICS4231M-03

ICS4231M-03 Datasheet

ICS4231-03

Part	Datasheet
ICS4231M-03	ICS4231M-03 (pdf)

Related Parts	Information
ICS4231M-03T	ICS4231M-03T

PDF Datasheet Preview
LOW EMI CLOCK GENERATOR DATASHEET ICS4231-03 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. 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. ICS offers a complete line of EMI reducing clock generators. Consult us when you need to remove crystals and oscillators from your board. • 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 • Peak reduction by 8dB - 14dB typical on 3rd - 19th odd harmonics • Spread percentage selections of • Operating voltage of 5V • Advanced, low-power CMOS process Block Diagram FS1:0 PLL Clock Synthesis and Spread X1/CLKIN Clock Buffer/ Spectrum Circuitry Crystal Oscillator IDT / ICS LOW EMI CLOCK GENERATOR ICS4231-03 LOW EMI CLOCK GENERATOR SSCG Pin Assignment Output Enable Function Table X1/CLKIN 1 X2 2 GND 3 FS0 4 8 OE# 7 FS1 6 VDD 5 CLKOUT 8 pin 150 mil SOIC OE# Pin 8 Output Status Running Tri-state 0 = connect to GND 1 = connect directly to VDD Note OE# pin has an internal pull-down resistor Frequency Range and Spread Table Pin 7 Pin 4 Clock Input Frequency Crystal Input Frequency MHz 10-20 10-20 Ordering Information A1 -C- SEATING PLANE Part / Order Number 4231M-03 4231M-03T 4231M-03LF 4231M-03LFT Marking see page 5 Shipping packaging Tubes Tape and Reel Tubes Tape and Reel Package 8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC Temperature 0 to +70° C 0 to +70° C 0 to +70° C 0 to +70° C “LF” denotes Pb free packaging. While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems ICS assumes no responsibility for either its use or for the infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is intended for use in normal commercial applications. Any other applications such as those requiring extended temperature range, high reliability, or other extraordinary environmental requirements are not recommended without additional processing by ICS. ICS reserves the right to change any circuitry or specifications without notice. ICS does not authorize or warrant any ICS product for use in life support devices or critical medical instruments. IDT / ICS LOW EMI CLOCK GENERATOR ICS4231-03 LOW EMI CLOCK GENERATOR SSCG Innovate with IDT and accelerate your future networks. Contact: For Sales 800-345-7015 408-284-8200 Fax 408-284-2775 For Tech Support <product line email> <product line phone> Corporate Headquarters Integrated Device Technology, Inc. 6024 Silver Creek Valley Road San Jose, CA 95138 United States 800 345 7015 +408 284 8200 outside U.S. Asia Pacific and Japan Integrated Device Technology Singapore 1997 Pte. Ltd. Reg. No. 199707558G 435 Orchard Road #20-03 Wisma Atria Singapore 238877 +65 6 887 5505 Europe IDT Europe, Limited Prime House Barnett Wood Lane Leatherhead, Surrey United Kingdom KT22 7DE +44 1372 363 339 2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are trademarks of Integrated Device Technology, Inc. Accelerated Thinking is a service mark of Integrated Device Technology, Inc. All other brands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners. Printed in USA

PDF Datasheet Preview

LOW EMI CLOCK GENERATOR

DATASHEET

ICS4231-03

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.

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.

ICS offers a complete line of EMI reducing clock generators. Consult us when you need to remove crystals and oscillators from your board.
• 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
• Peak reduction by 8dB - 14dB typical on 3rd - 19th
odd harmonics
• Spread percentage selections of
• Operating voltage of 5V
• Advanced, low-power CMOS process

Block Diagram

FS1:0

PLL Clock

Synthesis
and Spread

X1/CLKIN

Clock Buffer/

Spectrum Circuitry

Crystal

Oscillator

IDT / ICS LOW EMI CLOCK GENERATOR

ICS4231-03 LOW EMI CLOCK GENERATOR

SSCG

Pin Assignment

Output Enable Function Table

X1/CLKIN 1 X2 2

GND 3 FS0 4
8 OE# 7 FS1 6 VDD 5 CLKOUT
8 pin 150 mil SOIC

OE# Pin 8

Output Status

Running Tri-state
0 = connect to GND 1 = connect directly to VDD Note OE# pin has an internal pull-down resistor

Frequency Range and Spread Table

Pin 7 Pin 4

Clock Input Frequency

Crystal Input Frequency MHz
10-20
10-20
Ordering Information

A1 -C-

SEATING PLANE

Part / Order Number
4231M-03 4231M-03T 4231M-03LF 4231M-03LFT

Marking
see page 5

Shipping packaging

Tubes Tape and Reel

Tubes Tape and Reel

Package
8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC

Temperature
0 to +70° C 0 to +70° C 0 to +70° C 0 to +70° C
“LF” denotes Pb free packaging.

While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems ICS assumes no responsibility for either its use or for the infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is intended for use in normal commercial applications. Any other applications such as those requiring extended temperature range, high reliability, or other extraordinary environmental requirements are not recommended without additional processing by ICS. ICS reserves the right to change any
circuitry or specifications without notice. ICS does not authorize or warrant any ICS product for use in life support devices or critical medical instruments.

IDT / ICS LOW EMI CLOCK GENERATOR

ICS4231-03 LOW EMI CLOCK GENERATOR

SSCG

Innovate with IDT and accelerate your future networks. Contact:

For Sales
800-345-7015 408-284-8200 Fax 408-284-2775

For Tech Support
<product line email> <product line phone>

Corporate Headquarters

Integrated Device Technology, Inc. 6024 Silver Creek Valley Road San Jose, CA 95138 United States 800 345 7015 +408 284 8200 outside U.S.

Asia Pacific and Japan

Integrated Device Technology Singapore 1997 Pte. Ltd. Reg. No. 199707558G 435 Orchard Road #20-03 Wisma Atria Singapore 238877 +65 6 887 5505

Europe

IDT Europe, Limited Prime House Barnett Wood Lane Leatherhead, Surrey United Kingdom KT22 7DE +44 1372 363 339
2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are trademarks of Integrated Device Technology, Inc. Accelerated Thinking is a service mark of Integrated Device Technology, Inc. All other brands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners. Printed in USA

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived ICS4231M-03 Datasheet file may be downloaded here without warranties.

Datasheet ID: ICS4231M-03 636986