概览

简介

The 9EX21531 provides 15 output clocks for PCIe Gen1/ 2/3 applications. The 9EX21531 has 4 selectable SMBus addresses, and dedicated CKPWRGD/PD# and VDDA pins for easy board design. A differential clock from a CK410B+ or CK420BQ main clock generator, such as the 932S421, drives the 9EX21531. In fanout mode, the 9EX21531 provides outputs up to 166MHz.

特性

  • 15 - 0.7V current mode differential HSCL output pairs
  • Pin compatible to 9EX21501/ Easy PCIe Gen3 upgrade
  • 4 Selectable SMBus Addresses/Multiple devices can share the same SMBus Segment
  • 8 dedicated and 2 group OE# pins/Hardware control of the outputs
  • PLL or bypass mode/PLL can dejitter incoming clock
  • Selectable PLL bandwidth/minimizes jitter peaking in downstream PLL's
  • Spread Spectrum Compatible/tracks spreading input clock for low EMI
  • SMBus Interface/unused outputs can be disabled
  • Undriven differential outputs in Power Down mode/ Easy power management
  • Cycle-to-cycle jitter <50ps
  • Output-to-output skew < 150 ps
  • PCIe Gen3 phase jitter < 1.0ps RMS

产品对比

应用

文档

设计和开发

模型