840001CK-32

www.icst.com/products/hiperclocks.html

REV. A NOVEMBER 23, 2005

1

Integrated

Circuit

Systems, Inc.

ICS840001-32

PRELIMINARY

The ICS840001-32 is a two output LVCMOS/

LVTTL Synthesizer and is a member of the

devices from ICS. The device uses a 40MHz

crystal to provide a 40MHz reference clock

output and to synthesize

a 100MHz

or 106.25MHz

output. The ICS840001-32 has excellent <1ps phase

jitter performance over the 637kHz – 5MHz integration

range. The ICS840001-32 is packaged in a 3mm x 3mm

16-pin VFQFN, making it ideal for use on space con-

strained boards.

• One LVCMOS/LVTTL output, 15Ω typical output

impedence and one reference clock output

• 40MHz, 10pF parallel resonant crystal

• Output frequencies: 100MHz or 106.25MHz

• RMS phase jitter @ 106.25MHz, using a 40MHz crystal

(637kHz - 5MHz): 0.78ps (typical)

• 3.3V operating supply

• 0°C to 70°C ambient operating temperature

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

packages

HiPerClockS™

ICS

OSC

Synthesizer

XTAL_IN

XTAL_OUT

Q

SEL

ICS840001-32

16-Lead VFQFN

3mm x 3mm x 0.95 package body

K Package

Top View

XTAL_OUT

XTAL_IN

SEL

Q

REF_OUT

1

2

3

4

12

11

10

9

5

6

7

8

16 15 14 13

REF_OUT

(Pullup)

40MHz

100MHz or

106.25MHz

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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.