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ICS650R-22

PVR and STB Clock Source

Integrated Circuit Systems 

ICS650-22

PVR and STB Clock Source

Description

The ICS650-22 is a low-cost, low-jitter,

high-performance clock synthesizer for personal video

recorders (PVR) and set-top box (STB) applications.

Using analog Phase-Locked Loop (PLL) techniques,

the device accepts a 27 MHz crystal input to produce

multiple clocks for personal video recorder

applications.

Features

• Packaged in 20-pin narrow SSOP (QSOP)

• Available in Pb (lead) free package

• 27 MHz fundamental crystal or clock input

• Zero ppm synthesis error in all clocks

• Low skew 33.33 MHz clock outputs

• Output enable controls all outputs

• Full CMOS output swing with 25 mA output drive

capability at TTL levels

• Advanced, low-power, sub-micron CMOS process

• 3.3 V +10% operating voltage

Block Diagram

VDD

6

X1/ICLK

27 MHz

Fundamental

Crystal or X2

Clock

Crystal

OSC

Clock

Synthesis

and Control

Circuitry

4

33.33 MHz

48 MHz

66.66 MHz

100 MHz

4 OE

GND

MDS 650-22 D

1

Revision 051004

Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com

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