ICS426

www.DataSheet4U.com ICS426 Serial ATA/Fibre Channel Clock Synthesizer Features Packaged in 16 pin TSSOP Input crystal or clock frequency of 25 MHz (typical) Supports serial ATA Generation 1 Supports Fiber Channel Duty cycle of 45/55 Operating voltage of 3.3V Advanced, low power, CMOS process Description The ICS426 was developed for serial ATA (SATA) and fiber channel. It generates a high quality, high frequency clock output from a low cost frequency crystal or clock input. Using Phase-Locked-Loop (PLL) techniques, the device runs from a standard fundamental mode, inexpensive crystal or clock input. Block Diagram VDD 4 S0:S1 X1 Crystal Oscillator X2 25 MHz Crystal or Clock Input PLL /Clock Synthesis Circuitry CLK Capacitors may be required with a crystal input. 6 GND OE MDS 426 B Integrated Circuit Systems, Inc. q 1 525 Race Street, San Jose, CA 95126 q Revision 091102 tel (408) 295-9800 q www.icst.com ICS426 Serial ATA/Fibre Channel Clock Synthesizer Pin Assignment X1/ICLK VDD VDD GND GND S1 VDD CLK 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 X2 GND GND OE GND S0 VDD GND Clock Output Select Table (MHz) S1 0 0 1 1 S0 0 1 0 1 Input 25 25 25 25 CLK Output 75 150 106.25 156.25 16 pin 173 mil (0.65 mm) TSSOP Pin Descriptions Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin Name X1/ICLK VDD VDD GND GND S1 VDD CLK GND VDD S0 GND OE GND GND X2 Pin Type XI Power Power Power Power Input Power Output Power Power Input Power Input Power Pin Descri...