概览
描述
The 932S890C is a main clock synthesizer chip for SR5690/SR5670 AMD Servers. An SMBus interface allows full control of the device.
特性
- 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
- Spread Spectrum
- EMI reduction
- Outputs may be disabled via SMBus
- saves power
- External crystal load capacitors
- maximum frequency accuracy
- CPU output cycle-to-cycle jitter 100ps
- SRC output cycle-to-cycle jitter 125ps
- 48MHz output cycle-to-cycle jitter 130ps
- SIO output cycle-to-cycle jitter 150ps
- SRC output phase jitter 3.1ps rms (PCIe Gen2)
- +/- 50ppm frequency accuracy on all clocks, assuming REF is trimmed to 0 ppm)
产品对比
应用
设计和开发
模型
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