Overview

The 932SQL450 is a low power version of the CK420BQ synthesizer for Intel-based server platforms. It has 85-ohm LP-HCSL outputs allowing for direct connection to 85-ohm transmission lines. The 932SQL450 is driven with a 25MHz crystal for maximum performance. It generates CPU outputs of 100MHz. This device has a “low-drift” non-spread SAS/SRC PLL for use in systems that need to communicate across PCIe domains.
 
4 - Low-Power HCSL-compatible (LP-HCSL) CPU outputs
2 - LP-HCSL NS_SAS outputs
2 - LP-HCSL NS_SRC outputs
3 - LP-HCSL SRC outputs
1 - LP-HCSL DOT96 output
1 - 3.3V 48M output
5 - 3.3V PCI outputs
1 - 3.3V 14.318M output
932SQL450 Block Diagram
932SQL450 Pinout - QFN
932SQL450 Pinout - TSSOP
932SQL450 Block Diagram
932SQL450 Pinout - QFN
932SQL450 Pinout - TSSOP
  • Integrated 85 ohm differential terminations; saves 48 resistors and 82mm² area
  • LP-HCSL output drivers; 40% typical power savings over 932SQ420
  • 0.5% down spread capable on CPU, SRC and PCI outputs; reduce EMI
  • Additional down spread amounts selectable via SMBus; maximal system flexibility
  • 64-pin TSSOP and VFQFPN packages; smallest board footprint
  • CPU, SRC, NS_SRC and NS_SAS cycle-cycle jitter <50ps
  • Output to output skew <50ps
  • Phase jitter: PCIe Gen2 <2.5ps rms
  • Phase jitter: PCIe Gen3 <0.6ps rms
  • Phase jitter: QPI <0.3ps rms
  • Phase jitter: NS-SAS <1.3ps rms using long period phase jitter method

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.

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Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Lead Count (#)
    Temp. Grade
    Pb (Lead) Free
    Carrier Type
    Buy / Sample
    Part Number
    932SQL450BGLF
    circleObsolete
    memory
    view_in_ar
    		TSSOP 64 C Yes Tube
    932SQL450BGLFT
    circleObsolete
    memory
    view_in_ar
    		TSSOP 64 C Yes Reel
    932SQL450BKLF
    circleObsolete
    memory
    view_in_ar
    		VFQFPN 64 C Yes Tray
    932SQL450BKLFT
    circleObsolete
    memory
    view_in_ar
    		VFQFPN 64 C Yes Reel
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