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Overview

Description

The 5T9306 2.5V differential clock buffer is a user-selectable differential input to six LVDS outputs. The fanout from a differential input to six LVDS outputs reduces loading on the preceding driver and provides an efficient clock distribution network. The 5T9306 can act as a translator from a differential HSTL, eHSTL, LVEPECL (2.5V), LVPECL (3.3V), CML, or LVDS input to LVDS outputs. A single-ended 3.3V / 2.5V LVTTL input can also be used to translate to LVDS outputs. The redundant input capability allows for an asynchronous change-over from a primary clock source to a secondary clock source. Selectable reference inputs are controlled by SEL. The 5T9306 outputs can be asynchronously enabled/disabled. When disabled, the outputs will drive to the value selected by the GL pin. Multiple power and grounds reduce noise.

Features

  • Guaranteed Low Skew < 25ps (max)
  • Very low duty cycle distortion < 125ps (max)
  • High speed propagation delay < 1.75ns (max)
  • Additive phase jitter, RMS 0.159ps (typical) @ 125MHz
  • Up to 1GHz operation
  • Selectable inputs
  • Hot insertable and over-voltage tolerant inputs
  • 3.3V / 2.5V LVTTL, HSTL, eHSTL, LVEPECL (2.5V), LVPECL (3.3V), CML, or LVDS input interface
  • Selectable differential inputs to six LVDS outputs
  • Power-down mode
  • 2.5V VDD
  • Available in VFQFPN package

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