Datasheet Summary
19-Output Differential Zbuffer for PCIe Gen2/3 and QPI
General Description
The 9ZX21901 is Intel DB1900Z Differential Buffer suitable for PCI-Express Gen3 or QPI applications. The part is backwards patible 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.
Remended 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
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