The ICS843004I-04 is a 4 output LVPECL Synthesizer optimized to generate clock HiPerClockSTM frequencies for a variety of high performance applications and is a member of the HiPerClocks TM f amily of high perfor mance clock solutions from ICS. This device can select its input reference clock from either a crystal input or a singleended clock signal. It can be configured to generate 4 outputs with individually selectable divide-by-one or divide-by-four function via the 4 frequency select pins ( F _ S E L [ 3 : 0 ] ) . T h e I C S 8 4 3 0 0 4 I - 0 4 u s e s I C S ' 3 rd generation low phase noise VCO technology and can achieve 1ps or lower typical r ms phase jitter. This ensures that it will easily meet clocking requirements for SDH (STM-1/STM-4/STM-16) and SONET (OC-3/ OC12/OC-48). This device is suitable for multi-rate and multiple port line card applications. The ICS843004I-04 is conveniently packaged in a small 24-pin TSSOP package.