Overview

Description

The 844251-15 is an Ethernet Clock Generator and a member of the HiPerClocks® family of high performance devices from IDT. The 844251-15 uses an 18pF parallel resonant crystal over the range of 23.2MHz - 30MHz. For Ethernet applications, a 25MHz crystal is used. The device has excellent <1ps phase jitter performance, over the 1.875MHz - 20MHz integration range. The 844251-15 is packaged in a small 8-pin TSSOP, making it ideal for use in systems with limited board space.

Features

  • One differential LVDS output pair
  • Crystal oscillator interface designed for 18pF, parallel resonant crystal (23.2MHz – 30MHz)
  • Output frequency ranges: 116MHz – 150MHz and 580MHz – 750MHz
  • VCO range: 580MHz – 750MHz
  • RMS phase jitter at 125MHz, using a 25MHz crystal (1.875MHz – 20MHz): 0.46ps (typical)
  • Full 3.3V or 2.5V output supply modes
  • 0°C to 70°C ambient operating temperature
  • Available in a lead-free (RoHS 6) package

Comparison

Applications

Documentation

Design & Development

Models