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
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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
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Advanced, low-power, sub-micron CMOS process
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3.3 V +10% operating voltage
Block Diagram
VDD
6
4
33.33 MHz
48 MHz
66.66 MHz
100 MHz
27 MHz
Fundamental
Crystal or
Clock
X1/ICLK
Crystal
OSC
X2
Clock
Synthesis
and Control
Circuitry
4
GND
OE
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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