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Overview

Description

The 8432I-51 is a general purpose, dual output Crystal-to-3.3V Differential LVPECL High Frequency Synthesizer. The 8432I-51 has a selectable REF_CLK or crystal input. The VCO operates at a frequency range of 250MHz to 700MHz. The VCO frequency is programmed in steps equal to the value of the input reference or crystal frequency. The VCO and output frequency can be programmed using the serial or parallel interface to the configuration logic. The low phase noise characteristics of the 8432I-51 make it an ideal clock source for Gigabit Ethernet, Fibre Channel 1 and 2, and InfiniBand applications.

Features

  • Dual differential 3.3V LVPECL outputs
  • Selectable crystal oscillator interface or LVCMOS/LVTTL REF_CLK
  • Output frequency range: 31.25MHz to 700MHz
  • Crystal input frequency range: 12MHz to 25MHz
  • VCO range: 250MHz to 700MHz
  • Parallel or serial interface for programming counter and output dividers
  • RMS period jitter: 3.5ps (maximum)
  • Cycle-to-cycle jitter: 40ps (maximum)
  • 3.3V supply voltage
  • -40°C to 85°C ambient operating temperature
  • Available in  lead-free (RoHS 6) 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 the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

Diagram of ECAD Models

Models

Type Title Date
Model - IBIS ZIP 27 KB
1 item

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