Overview

Description

The 843023 is a Gigabit Ethernet Clock Generator and a member of the family of high performance devices from IDT. The 843023 uses a 25MHz crystal to synthesize 250MHz. The 843023 has excellent phase jitter performance, over the 1.875MHz – 20MHz integration range. The 843023 is packaged in a small 8-pin TSSOP, making it ideal for use in systems with limited board space.

Features

  • One differential 3.3V LVPECL output
  • Crystal oscillator interface designed for 25MHz, 18pF parallel resonant crystal
  • Output frequencies: 245MHz – 320MHz
  • VCO range: 490MHz - 640MHz
  • RMS phase jitter @ 250MHz, using a 25MHz crystal (1.875MHz - 20MHz): 0.39ps (typical)
    Offset Noise Power
    100Hz .................. -86.3 dBc/Hz
    1kHz .................... -114.6 dBc/Hz
    10kHz .................. -125.6 dBc/Hz
    100kHz ................ -126 dBc/Hz
  • 3.3V operating supply
  • 0°C to 70°C ambient operating temperature
  • Available in lead-free (RoHS 6) package

Comparison

Applications

Documentation

Design & Development

Models