MK2703B

PLL AUDIO CLOCK SYNTHESIZER DATASHEET MK2703B Description The MK2703B 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. 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. Features Packaged in 8-pin SOIC Available in RoHS compliant package Uses an inexpensive, fundamental mode crystal or clock 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 S1:0 2 27 MHz crystal or clock input X1 X2 Crystal Oscillator PLL Clock Synthesis and Control Circuitry Capacitors are required for crystal tuning GND Audio Clock 27M IDT™ / ICS™ PLL AUDIO CLOCK SYNTHESIZER 1 MK2703B REV D 042606 MK2703B PLL AUDIO CLOCK SYNTHESIZER Pin Assignment X1 VDD GND 27M 1 2 3 4 8 X2 7 S0 6 S1 5 CLK 8-pin (150 mil) SOIC CLOCK SYNTHESIZER AUDIO CLOCK OUTPUT SELECT TABLE S1 S0 00 01 10 11 CLK (MHz) 8.192 11.2896 12.288 24.576 Key: 0 = Connect pin directly to ground 1 = Connect pin directly to VDD ...