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19-Output Differential Zbuffer for PCIe Gen2/3 and QPI
9ZX21901C
DATASHEET
General Description
The 9ZX21901 is Intel DB1900Z Differential Buffer suitable for PCI-Express Gen3 or QPI applications. The part is backwards compatible to PCIe Gen1 and Gen2. A fixed external feedback maintains low drift for critical QPI applications. In bypass mode, the 9ZX21901 can provide outputs up to 400MHz.
Recommended Application
• 19-output PCIe Gen3/QPI buffer with fixed feedback for
Romley platforms
Output Features
• 19 – 0.7V current mode differential HCSL output pairs
Key Specifications
• Cycle-to-cycle jitter: < 50ps • Output-to-output skew: <65ps • Input-to-output delay: Fixed at 0 ps • Input-to-output delay variation: <50ps • Phase jitter: PCIe Gen3 < 1ps rms • Phase jitter: QPI 9.6GB/s < 0.
9ZX21901C Datasheet
