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Renesas Electronics Corporation

Renesas’ Timing product portfolio has been acquired by SiTime.

Datasheets, documentation, and sample orders remain available on Renesas.com through late 2026. For new designs, purchasing, support, and product inquiries, visit SiTime.com or send an email to [email protected]. Full transition to SiTime is expected by late 2026.

Features

  • Four 3.3V LVPECL output pairs
  • Selectable crystal oscillator interface or LVCMOS/LVTTL single-ended input
  • Crystal oscillator designed for 25MHz, 18pF parallel resonant crystal
  • Supports the following output frequency: 125MHz
  • VCO range: 560MHz - 680MHz
  • RMS phase jitter @ 125MHz, using a 25MHz crystal (1.875MHz - 20MHz): 0.58ps (typical)
  • Full 3.3V supply mode
  • 0°C to 70°C ambient operating temperature
  • Available in lead-free (RoHS 6) package

Description

The 843004-125 is a 4 output LVPECL Synthesizer optimized to generate Ethernet reference clock frequencies. The 843004-125 uses our 3rd generation low phase noise VCO technology and can achieve 1ps or lower typical rms phase jitter, easily meeting Ethernet jitter requirements. The 843004-125 is packaged in a small 24-pin TSSOP package.

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