MK2731-03C

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 S2:0 3 PLL/Clock Synthesis Circuitry 27 MHz crystal or clock X1 Crystal Oscillator X2 Output Buffer Output Buffer CLK1 CLK2 Output Buffer REF (Capacitors are required for crystal tuning) MDS 2731-03C D 1 Revision 011101 Integrated Circuit Systems, Inc. 525 Race Street, San Jose, CA, 95126 (408) 295-9800 tel www.icst.com MK2731-03C MPEG Audio Clock Synthesizer Pin Assignment MK2731-03C X2 X1 VDD VDD GND GND S2 GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 REF NC...