RD890 System Clock For AMD-Based Servers

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

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
  • 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)

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
932S890CKLF Active NLG72P1 VFQFPN 72 C Yes Tray Availability
932S890CKLFT Active NLG72P1 VFQFPN 72 C Yes Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
932S890C Datasheet Datasheet PDF 228 KB May 19, 2011
PCNs & PDNs
PCN# : A1611-02 Add JCET China as Alternate Assembly and Change of Material Set at Alternate Assembly Location Product Change Notice PDF 583 KB Dec 19, 2016
PCN# : A1511-01(R1) Add SPEL India as Alternate Assembly Location Product Change Notice PDF 596 KB Jan 27, 2016
PCN# : A1511-01 Add SPEL India as Alternate Assembly Location Product Change Notice PDF 544 KB Nov 12, 2015
PCN# : TB1504-01R1 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 95 KB Oct 21, 2015
PCN# : TB1504-01 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 50 KB Jul 20, 2015
PCN# : A1311-03R1 Alternate Assembly Locations Product Change Notice PDF 43 KB Feb 15, 2014
PCN# : A1311-03 Alternate Assembly Locations Product Change Notice PDF 140 KB Dec 2, 2013
PCN# : A1308-01 Add ASEK as Alternate Assembly for VFQFPN-72 Product Change Notice PDF 103 KB Aug 17, 2013
PCN# : A1305-01 Gold Wire to Copper Wire Product Change Notice PDF 148 KB Jul 28, 2013