843031AG

www.icst.com/products/hiperclocks.html

REV. A NOVEMBER 29, 2004

1

Integrated

Circuit

Systems, Inc.

ICS843031

PRELIMINARY

The ICS843031 is a 1 Gigabit Ethernet Clock

family of high performance devices from ICS. The

ICS843031 can synthesize 1 Gigabit Ethernet,

SONET, or Serial ATA reference clock frequencies

with the appropriate choice of crystal and output divider. The

ICS843031 has excellent phase jitter performance and is

packaged in a small 8-pin TSSOP, making it ideal for use in

systems with limited board space.

• 1 differential 3.3V LVPECL output

• Crystal oscillator interface designed for

18pF parallel resonant crystals

• VCO frequency range: 580MHz - 700MHz

• RMS phase jitter @312.5MHz (1.875MHz - 20MHz):

0.5ps (typical)

• 3.3V operating supply

• 0°C to 70°C ambient operating temperature

• Industrial temperature information available upon request

HiPerClockS™

ICS

ICS843031

8-Lead TSSOP

4.40mm x 3.0mm x 0.925mm

package body

G Package

Top View

XTAL_OUT

XTAL_IN

1

2

3

4

Q0

nQ0

OE

8

7

6

5

OSC

Phase

Detector

VCO

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(fixed)

÷2

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XTAL-OUT

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The Preliminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on initial

product characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications without notice.