概览

简介

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

特性

  • One differential 3.3V or 2.5V LVPECL output
  • Crystal oscillator interface designed for 25MHz, 18pF parallel resonant crystal
  • Output frequency range: 240MHz - 320MHz
  • VCO range: 480MHz - 640MHz
  • RMS phase jitter @ 250MHz, using a 25MHz crystal (1.875MHz - 20MHz): 0.39ps (typical)
    Phase noise:
    Offset                    Noise Power
    100Hz ................. -86.3 dBc/Hz
    1kHz ................... -114.6 dBc/Hz
    10kHz ................. -125.6 dBc/Hz
    100kHz ............... -126.0 dBc/Hz
  • Full 3.3V and 2.5V operating supply
  • -40°C to 85°C ambient operating temperature
  • Available in lead-free (RoHS 6) package

产品对比

应用

文档

设计和开发

模型