19-Output DB1900Z for PCIe Gen1-4 and QPI/UPI 9ZX21901D DATASHEET Description The 9ZX21901D is a second generation DB1900Z differential buffer for Intel Purley and newer platforms.
The part is backwards compatible to the 9ZX21901C while offering much improved phase jitter performance.
A fixed external feedback maintains low drift for critical QPI/UPI applications.
In bypass mode, the 9ZX21901D can provide outputs up to 400MHz.
PCIe Clocking Architectures Supported • Common Clocked (CC) • Separate Reference No Spread (SRNS) • Separate Reference Independent Spread (SRIS) Typical Applications • Servers, Storage, Networking Output Features • 19 HCSL output pairs Key Specifications • Cycle-to-c...

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