MK2703
PLL AUDIO CLOCK SYNTHESIZER
Description
Features
The MK2703 is a low-cost, low-jitter, high-performance
PLL clock synthesizer designed to replace oscillators
and PLL circuits in set-top box and multimedia
systems. Using ICS’ patented analog Phase Locked
Loop (PLL) techniques, the device uses a 27 MHz
crystal or clock input to produce a buffered reference
clock and a selectable audio clock.
• Packaged in 8-pin SOIC
• Available in Pb (lead) free package
• Uses an inexpensive, fundamental mode crystal or
ICS manufactures the largest variety of Set-Top Box
and multimedia clock synthesizers for all applications.
Consult ICS to eliminate VCXOs, crystals and
oscillators from your board.
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clock
• Supports MPEG sampling rates of 32 kHz, 44.1 kHz,
48 kHz, and 96 kHz
Patented zero ppm synthesis error in all clocks
All frequencies are frequency locked
Advanced, low power, sub-micron CMOS process
Operating voltage of 3.3 V or 5 V
Industrial temperature version available
Block Diagram
VDD
PLL Clock
Synthesis
and Control
Circuitry
S1:0 2
Audio Clock
X1
27 MHz
crystal or
clock input
Crystal
Oscillator
27M
X2
Capacitors are required for crystal tuning
1
MDS 2703 H
I n t e gra te d C i r c u i t S y s t e m s
GND
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5 25 Race Stre et, San Jo se, CA 9 5126
Revision 121904
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te l (40 8) 2 97-12 01
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w w w. i c st . c o m
