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NOTICE - The following device(s) are recommended alternatives:
9ZX21901D - Enhanced DB1900Z Compliant 19-Output Buffer
Pin-to-pin with improved performance

Overview

Description

The 9ZX21901C is an Intel DB1900Z differential buffer suitable for PCI Express Gen 1-2-3 or QPI applications. The 9ZX21901C has a fixed external feedback path. See the 9ZX21901B for an adjustable external feedback path.

Features

  • 19 - 0.7V HCSL differential output pairs
  • Fixed external feedback path
  • Phase jitter: PCIe Gen3 < 1ps rms
  • Phase jitter: PCIe Gen2 < 3.1ps rms
  • Phase jitter: PCIe Gen1 < 86ps peak to peak
  • Phase jitter: QPI 9.6GT/s < 0.2ps rms
  • PLL or bypass mode
  • PLL can de-jitter incoming clock
  • 9 selectable SMBus addresses
  • 8 OE# pins
  • 100MHz or 133MHz PLL mode operation for PCIe and QPI applications
  • Selectable PLL bandwidth minimizes jitter peaking in downstream PLLs
  • Spread spectrum compatible

Comparison

Applications

Documentation

Design & Development

Models

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Diagram of ECAD Models