Overview

The 932S890C is a main clock synthesizer chip for SR5690/SR5670 AMD Servers. An SMBus interface allows full control of the device.
  • 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)

Documentation

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Explore ECAD Models
Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Lead Count (#)
    Temp. Grade
    Pb (Lead) Free
    Carrier Type
    Buy / Sample
    Part Number
    932S890CKLF
    circleObsolete
    memory
    view_in_ar
    		VFQFPN 72 C Yes Tray
    932S890CKLFT
    circleObsolete
    memory
    view_in_ar
    		VFQFPN 72 C Yes Reel
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