15-output DB1900Z Derivative

The 9ZX21501C is a 15-output version of the 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 9ZX21501C can provide outputs up to 400MHz.

• Fixed feedback path; 0ps input-to-output delay
• 9 Selectable SMBus addresses; multiple devices can share same SMBus segment
• 7 dedicated OE# pins; hardware control of outputs
• PLL or bypass mode; PLL can dejitter incoming clock
• Selectable PLL BW; minimizes jitter peaking in downstream PLL"s
• Spread spectrum compatible; tracks spreading input clock for EMI reduction
• SMBus Interface; unused outputs can be disabled
• 100MHz & 133.33MHz PLL mode; legacy QPI support
• Undriven differential outputs in Power Down mode for maximum power savings