ICS9DB403D

Four Output Differential Buffer for PCIe Gen 1 and Gen 2 DATASHEET ICS9DB403D Description Features/Benefits The ICS9DB403 is compatible with the Intel DB400v2 Differential Buffer Specification.This buffer provides 4 PCI-Express Gen2 clocks. The ICS9DB403 is driven by a differential output pair from a CK410B+, CK505 or CK509B main clock generator. Spread spectrum modulation tolerant, 0 to -0.5% down spread and +/- 0.25% center spread. Supports undriven differential outputs in PD# and SRC_STOP# modes for power management. Output Features 4 - 0.7V current-mode differential output pairs Supports zero delay buffer mode and fanout mode Bandwidth programming available 50-100 MHz operation in PLL mode 50-400 MHz operation in Bypass mode Key Specifications Outputs cycle-cycle jitter < 50ps Outputs skew: 50ps Phase jitter: PCIe Gen1 < 86ps peak to peak Phase jitter: PCIe Gen2 < 3.0/3.1ps rms 28-pin SSOP/TSSOP pacakge Available in RoHS compliant packaging Supports Commercial (0 to +70°C) and Industrial (-40 to +85°C) temperature ranges Functional Block Diagram 24 OE-(O6,5E,(26,1, )1) SRC_IN SRC_IN# SPREAD COMPATIBLE PLL 4 M STOP U LOGIC X PD BYPASS#/PLL SDATA SCLK CONTROL LOGIC DIF(6,5,2,1) IREF Note: Polarities shown for OE_INV = 0. IDT® Four Output Differential Buffer for PCIe and Gen 1 and Gen 2 1 ICS9DB403D REV R 11/1/12 ICS9DB403D Four Output Differential Buffer for PCIe for Gen 1 and Gen 2 Pin Configuration VDDR 1 28 VDDA SRC_IN 2...