General Description

ICS9219 is a High-speed clock generator providing 400 or 533 MHz differential clock source for direct Rambus memory system. ICS9219 takes a crystal as an input reference source, and produces the differential output clock required for the Rambus channel. ICS9219 provides a solution for a broad range of Direct Rambus memory applications. ICS9219 can be used in single or dual Rambus channels. An additional LVCMOS output, which provides a reference clock at the crystal frequency for the other system blocks is also included.

Features

• Compatible with all Direct RambusTM based ICs

• Provides differential clock source for direct Rambus memory system with 1GHz data transfer rate capability

• Cycle to Cycle jitter is less than 100ps

• 3.3V + 4 supply

• LVCMOS REF clock @ crystal frequency

• Output edge rate control to minimize EMI