840AG-75

www.icst.com/products/hiperclocks.html

REV A. NOVEMBER 7, 2005

1

Integrated

Circuit

Systems, Inc.

ICS840-75

PRELIMINARY

The ICS840-75 is a SAS/SATA Oscillator

Replacement

and

a

member

of

the

devices from ICS. The ICS840-75 uses a

25MHz cr ystal to synthesize 75MHz. The

ICS840-75 has excellent jitter performance. The ICS840-75

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

use in systems with limited board space.

• One LVCMOS/LVTTL output, 15Ω output impedence

• Crystal oscillator interface designed for 25MHz,

18pF parallel resonant crystal

• Output frequency: 75MHz

• Random jitter: 3ps (typical)

• Deterministic jitter: 0.14ps (typical)

• 3.3V operating supply

• 0°C to 70°C ambient operating temperature

• Available in both standard and lead-free RoHS-compliant

packages

HiPerClockS™

ICS

ICS840-75

8-Lead TSSOP

4.40mm x 3.0mm x 0.925mm package body

G Package

Top View

ICS840-75

8-Lead SOIC

3.90mm x 4.92mm x 1.37mm body package

M Package

Top View

1

2

3

4

8

7

6

5

Clock

Synthesizer

XTAL_IN

XTAL_OUT

OE

Q

Pullup

25MHz

75MHz

XTAL_OUT

XTAL_IN

OE

nc

Q

GND

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.