932S890CKLF

DATASHEET 932S890C RD890 SYSTEM CLOCK FOR AMD-BASED SERVERS General Description Features/Benefits The 932S890C is a main clock synthesizer chip for SR5690/SR5670 AMD Servers. An SMBus interface allows full control of the device. • Spread Spectrum; EMI reduction • Outputs may be disabled via SMBus; saves power • External crystal load capacitors; maximum frequency accuracy Recommended Application SR5690/SR5670 AMD-based Servers Key Specifications Output Features • • • • • • • Low power differential outputs with integrated series • • • • • • • resistors for Zo=50ohm systems 4 -Differential 200MHz CPU pairs 2 - Differential 100MHz HT3 pairs 14 - Differential PCIe Gen2 SRC pairs 1 - Differential non-spread SATA clock 2 - 48MHz USB clocks (180 degrees out of phase for EMI reduction) 2 - SIO clocks (selectable 48MHz or 24MHz). 180 degrees out of phase for EMI reduction 2 - 14.318MHz REF clock outputs CPU output cycle-to-cycle jitter