650G-36LF IDT, 650G-36LF Datasheet

650G-36LF

Manufacturer Part Number

650G-36LF

Description

Clock Drivers & Distribution SYSTEM PERIPHERAL CLOCK SOURCE

Manufacturer

IDT

Datasheet

1.650G-36LF.pdf (8 pages)

Specifications of 650G-36LF

Rohs

yes

Part # Aliases

ICS650G-36LF

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NETWORKING AND PCI CLOCK SOURCE

Description

The ICS650-36 is a low cost frequency generator designed

to support networking and PCI applications. Using

analog/digital Phase Locked-Loop (PLL) techniques, the

device uses a standard fundamental mode, inexpensive

crystal input of 25 MHz to produce four output clocks

supporting LAN, PCI, and 100M SDRAM functions.

The device also has a power down feature that tri-states the

clock outputs and turns off the PLL when the PDTS pin is

taken low.

Block Diagram

IDT™ / ICS™ NETWORKING AND PCI CLOCK SOURCE

25 MHz

crystal

input

S2:0

X1/ICLK

External capacitors

may be required.

Oscillator/

Crystal

Buffer

Clock

Control

Select/

Circuit

GND

VDD

Features

•

PLL1

PLL2

PLL3

Packaged in 16-pin TSSOP

Pb (lead) free package

Replaces multiple crystals and oscillators

Input crystal or clock frequency of 25 MHz

Fixed reference output frequency of 25 MHz

Selectable output frequencies of 33.3, 33.333, 50,

66.666, 100, and 125 MHz

Duty cycle of 40/60

Operating voltage of 3.3 V

Advanced, low-power CMOS process

Industrial and commercial temperature ranges

PDTS

(all outputs and PLLs)

CLK1

CLK2

CLK3

REF

ICS650-36

DATASHEET

ICS650-36

REV F 051310

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