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ICS501B

LOCO鈩?PLL C

LOCK

M

ULTIPLIER

Description

The ICS501B LOCO

TM

is the most cost effective way to

generate a high-quality clock output from a lower

frequency crystal or clock input. The name LOCO

stands for Low Cost Oscillator, as it is designed to

replace crystal oscillators in most electronic systems.

Using Phase-Locked Loop (PLL) techniques, the

device uses a standard fundamental mode,

inexpensive crystal to produce output clocks up to 20

MHz.

Stored in the chip鈥檚 ROM is the ability to generate nine

different multiplication factors, allowing one chip to

output many common frequencies (see table on page

2).

The device also has an output enable pin which

tri-states the clock output when the OE pin is taken low.

This product is intended for clock generation. It has low

output jitter (variation in the output period), but input to

output skew and jitter are not defined or guaranteed.

For applications which require defined input to output

skew, use the ICS570B.

Features

鈥?/div>

Packaged as 8 pin SOIC or die

Available in Pb (lead) free package

ICS鈥?lowest cost PLL clock

Zero ppm multiplication error

Input crystal frequency of 5 MHz

Input clock frequency of 5 MHz

Output clock frequencies up to 15 MHz

Extremely low jitter of 25 ps (one sigma)

Compatible with popular CPUs

Duty cycle of 45/55 up to 20 MHz

Nine selectable frequencies

Operating voltage of 3.3 V or 5.5 V

Tri-state output for board level testing

25 mA drive capability at TTL levels

Ideal for oscillator replacement

Industrial temperature version available

Advanced, low-power CMOS process

Block Diagram

VDD

S1:0

X1/ICLK

Crystal or

Clock input

X2

2

Crystal

Oscillator

PLL Clock

Multiplier

Circuitry

and ROM

CLK

Optional crystal capacitors

GND

OE

MDS 501B C

I n t e gra te d C i r c u i t S y s t e m s

鈼?/div>

1

5 25 Race Stre et, San Jo se, CA 9 5126

鈼?/div>

Revision 120704

te l (40 8) 2 97-12 01

鈼?/div>

w w w. i c st . c o m

型号

版本

描述

厂商

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ICS501

英文版

LOCO PLL CLOCK MULTIPLIER

ICS

ICS501
ICS501

英文版

LOCO PLL CLOCK MULTIPLIER

ICST [Inte...

ICS501
ICS501

英文版

LOCO PLL CLOCK MULTIPLIER

ICST [Inte...

ICS501
ICS502

英文版

LOCO⑩ PLL Clock Multiplier

ICS

ICS502
ICS502

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LOCO⑩ PLL Clock Multiplier

ICST [Inte...

ICS502
ICS503

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LOCO⑩ PLL Clock Multiplier

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LOCO⑩ PLL Clock Multiplier

ICST [Inte...

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PECL to CMOS Converter

ICS

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ICST [Inte...

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LOCO PLL CLOCK MULTIPLIER

ICS

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ICS511

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LOCO PLL CLOCK MULTIPLIER

ICST [Inte...

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LOCO⑩ PLL Clock Multiplier

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LOCO⑩ PLL Clock Multiplier

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LOCO⑩ PLL Clock Multiplier

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LOCO⑩ PLL Clock Generator

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LOCO⑩ PLL Clock Generator

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LOCO⑩ PLL Clock Generator

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LOW SKEW 1 TO 4 CLOCK BUFFER

IDT [Integ...

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PRELIMINARY INFORMATION PLL Clock Divider

ICS

ICS541

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