MK2703 Datasheet | Integrated Circuit Systems

Description 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 our 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. Micro Clock manufactures the largest variety of Set-Top Box and multimedia clock synthesizers for all applications. Consult Micro Clock to eliminate VCXOs, crystals and oscillators from your board. MK2703 PLL Audio Clock Synthesizer Features - Packaged in 8 pin SOIC - Uses an inexpensive fundamental crystal, or clock - Supports MPEG sampling rates of 32 k Hz, 44.1 k Hz, 48 k Hz and 96 k Hz - Patented zero ppm synthesis error in all clocks - All frequencies are frequency locked - 25 m A output drive capability at TTL levels - Advanced, low power, sub-micron CMOS process - 3.3 V or 5 V operating voltage - For audio clocks that require lower jitter, use the MK2731-03C - Industrial temperature version available Block Diagram VDD GND 2 S1:0 PLL Clock Synthesis and Control Circuitry Output Buffer Audio Clock 27 MHz crystal or clock X1 Crystal Oscillator X2 Output Buffer 27.000 MHz (Capacitors are required for crystal tuning) 1 Revision 062700 Printed 11/16/00 Integrated Circuit Systems, Inc. - 525 Race Street - San Jose - CA- 95126- (408) 295-9800tel - .icst. MDS 2703 C I C R O C LOC K Pin Assignment MK2703 PLL Audio Clock Synthesizer X1 VDD GND 27M 1 2 3 4 8 7 6 5 X2 S0 S1 CLK Audio Clock Output Select Table (MHz) S1 S0 CLK 0 0 8.192 0 1 11.2896 1 0 12.288 1 1 24.576 Key: 0 = connect pin directly to ground 1 = connect pin directly to VDD 8 pin SOIC Pin Descriptions Number 1 2 3 4 5 6 7 8 Name X1 VDD GND 27M CLK S1 S0 X2 Type XI P P O O I(PU) I(PU) XO Description Crystal Connection. Connect to a 27.0 MHz fundamental crystal or clock. Connect to +3.3V or +5V. Connect to ground. 27.00 MHz buffered reference clock...