9EX21531数据手册集成电路（IC）的应用特定时钟/定时规格书PDF

描述 Description

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 Features

·15 - 0.7V current mode differential HSCL output pairs
·Pin compatible to 9EX21501/ Easy PCIe Gen3 upgrade
·4 Selectable SMBus Addresses/Mulitple 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