描述 Description

The ICS650-27 is a low cost, low jitter, high performance clock synthesizer for networking applications. Using analog Phase-Locked Loop (PLL) techniques, the device accepts a 12.5 MHz or 25 MHz clock or fundamental mode crystal input to produce multiple output clocks for networking chips, PCI devices, SDRAM, and ASICs. The ICS650-27 outputs all have zero ppm synthesis error.

特性 Features

? Packaged in 20-pin (150 mil) SSOP (QSOP)

? Available in Pb (lead) free package

? 12.5 MHz or 25 MHz fundamental crystal or clock input

? Six output clocks with selectable frequencies

? SDRAM frequencies of 67, 83, 100, and 133 MHz

? Buffered crystal reference output

? Zero ppm synthesis error in all clocks

? Ideal for PMC-Sierra’s ATM switch chips

? Full CMOS output swing with 25 mA output drive capability at TTL levels

? Advanced, low-power, sub-micron CMOS process

? Operating voltage of 3.3 V

? Industrial temperature only