9ZX21201AKLFT

DATASHEET 12-OUTPUT DIFFERENTIAL Z-BUFFER FOR PCIE GEN2/3 AND QPI 9 ZX21201 General Description Features/Benefits Space-saving 64-pin packages Fixed feedback path/ 0ps input-to-output delay 9 Selectable SMBus Addresses/Mulitple devices can share the same SMBus Segment 12 OE# pins/Hardware control of each output PLL or bypass mode/PLL can dejitter incoming clock 100MHz or 133MHz PLL mode operation/supports PCIe and QPI applications Selectable PLL bandwidth/minimizes jitter peaking in downstream PLL's Spread Spectrum Compatible/tracks spreading input clock for low EMI Software control of PLL Bandwidth and Bypass Settings/ PLL can dejitter incoming clock (B Rev only) The IDT9ZX21201 is a 12-output DB1200Z 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 IDT9ZX21201 can • provide outputs up to 150MHz. • Recommended Application • 12-output PCIe Gen3/ QPI differential buffer for Romley and newer • platforms Key Specifications • • • • • Cycle-to-cycle jitter