ICS650-01B Datasheet PDF - Integrated Circuit Systems

Description
The ICS650-01B is a low cost, low jitter, high  performance clock synthesizer for system  peripheral applications. Using analog/digital  Phase-Locked Loop (PLL) techniques, the device  accepts a parallel resonant 14.31818 MHz crystal  input to produce up to eight output clocks.  The  device provides clocks for PCI, SCSI, Fast  Ethernet, Ethernet, and AC97. The user can select  from multiple interface frequencies, and also one  of three AC97 audio frequencies. The OE pin puts  all outputs into a high impedance state for board  level testing. All frequencies are generated with less  than one ppm error, meeting the demands of SCSI  and Ethernet clocking.
The ICS650 can be mask customized to produce  any frequencies from 1 to 150 MHz.

FEATUREs
• Packaged in 20 pin tiny SSOP (QSOP)
• Operating VDD of 3.3V or 5V
• Less than one ppm synthesis error in all clocks
• Inexpensive 14.31818 MHz crystal or clock input
• Provides Ethernet and Fast Ethernet clocks
• Provides SCSI clocks
• Provides PCI clocks
• Selectable AC97 audio clock
• Selectable interface clock
• OE pin tri-states the outputs for testing
• Selectable frequencies on three clocks
• Duty cycle of 40/60
• Advanced, low power CMOS process