ICS650-40 Datasheet | Integrated Circuit Systems

ETHERNET SWITCH CLOCK SOURCE Description The ICS650-40 is a clock chip designed for use in Ethernet Switch applications. Using ICS’ patented Phase-Locked Loop (PLL) techniques, the device takes a 25 MHz crystal input and produces various output clock frequencies as listed in Output Select Table. Features - - - - - - - Packaged in 16-pin TSSOP Available in Pb (lead) free package Operating voltage of 3.3 V Low power consumption Input frequency of 25 MHz Low long-term jitter 2.5 V to 3.3 V clock outputs Block Diagram VDD 3 VDDOA S1:S0 Control Logic CLKA Phase Lock Loop CLKB X1/ICLK 25 MHz crystal or clock X2 Clock Buffer/ Crystal Oscillator 4 GND OE VDDOB Optional tuning...