MK2731-03C Datasheet, PDF (1/4 Pages) Integrated Circuit Systems – MPEG Audio Clock Synthesizer

MK2731-03C
MPEG Audio Clock Synthesizer
Description
The MK2731-03 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 our proprietary
analog Phase-Locked Loop (PLL) techniques, the
device uses an inexpensive crystal or clock input to
produce up to three output clocks. All of the audio
frequencies are synthesized exactly, with zero ppm
error, and locked to the 27 MHz clock.
MicroClock manufactures the largest variety of
Set-Top Box and multimedia clock synthesizers
for all applications. Consult MicroClock to
eliminate VCXOs, crystals and oscillators from
your board.
Features
• Packaged in 16 pin narrow SOIC
• Produces exact audio clocks from the video
• Uses a crystal or clock input
• Zero ppm synthesis error in all clocks
• All frequencies are frequency locked
• 25mA output drive capability at TTL levels
• Advanced, low power, sub-micron CMOS process
• 3.3V or 5V operating voltage
Block Diagram
3
S2:0
27 MHz crystal
or clock
X1
X2
Crystal
Oscillator
(Capacitors are required
for crystal tuning)
PLL/Clock
Synthesis
Circuitry
Output
Buffer
Output
Buffer
Output
Buffer
CLK1
CLK2
REF
MDS 2731-03C D
1
Revision 011101
Integrated Circuit Systems, Inc.• 525 Race Street, San Jose, CA, 95126 • [phone] tel • www.icst.com