ics525r-04ilf Integrated Device Technology, ics525r-04ilf Datasheet

ics525r-04ilf

Manufacturer Part Number

ics525r-04ilf

Description

Oscar-tm User Configurable Pecl Clock

Manufacturer

Integrated Device Technology

Datasheet

1.ICS525R-04ILF.pdf (8 pages)

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OSCAR™ USER CONFIGURABLE PECL CLOCK

Description

The ICS525-04 OSCaR

generate a high quality, high frequency differential PECL

clock output from a crystal or CMOS clock input. The name

OSCaR

designed to replace crystal oscillators in almost any

electronic system. Users can easily configure the device to

produce nearly any output frequency from any input

frequency by grounding or floating the select pins. Neither

microcontroller, software, nor device programmer are

needed to set the frequency. Using Phase Locked Loop

techniques, the device accepts a crystal or clock to produce

output clocks up to 156 MHz at 3.3V, keeping them

frequency locked together.

For simple multipliers to produce common frequencies,

refer to the LOCO

more cost effective.

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 nor guaranteed. For

applications which require defined input to output timing,

use the ICS527-02.

Block Diagram

IDT™ / ICS™ OSCAR™ USER CONFIGURABLE PECL CLOCK

clock input

Crystal or

Optional crystal capacitors

stands for Oscillator Replacement, as it is

X1/ICLK

family of parts, which are smaller and

is the most flexible way to

Oscillator

Crystal

Reference

R6:R0

Divider

Phase Comparator,

Charge Pump, and

Loop Filter

Divider

V8:V0

VCO

Features

•

NOTE: EOL for non-green parts to occur on 5/13/10

per PDN U-09-01

Packaged as 28 pin SSOP (150 mil body)

Highly accurate frequency generation

User determines the output frequency by setting all

internal dividers

Eliminates need for custom oscillators

No software needed

Pull-ups on select inputs

Input crystal frequency of 5 - 27 MHz

Input clock frequency of 2 - 50 MHz

Output clock frequencies up to 156 MHz at 3.3V

Output clock frequencies up to 200 MHz at 5V

Very low jitter

PECL levels set by external resistors

Operating voltage of 3.3V or 5V

Ideal for oscillator replacement

Industrial temperature version available

Advanced, low power CMOS process

VDD

GND

VCO

RES

Divider

S2:S0

560

Output

VDD

ICS525-04

DATASHEET

VDD

GND

VDD

GND

820

ICS525-04

PECL

REV D 092209

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