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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

  • Fourth Generation FemtoClock® NG technology
  • Footprint compatible with 5mm x 7mm differential oscillators
  • One differential LVPECL output pair
  • CLK, nCLK input pair can accept the following levels: HCSL, LVDS, LVPECL, LVHSTL and SSTL
  • Output frequency: 128.90MHz or 161.132813MHz
  • VCO range: 2.5GHz – 2.7GHz
  • Cycle-to-cycle jitter: 18ps (typical)
  • RMS phase jitter @ 128.90MHz, 12kHz – 20MHz: 0.53ps (typical)
  • Full 3.3V or 2.5V operating supply
  • -40°C to 85°C ambient operating temperature
  • Available in lead-free (RoHS 6) package

Description

The 83PN128I is a programmable LVPECL synthesizer that can be used for frequency conversions. The device uses Renesas' fourth generation FemtoClock® NG technology for optimal high clock frequency and low phase noise performance, combined with a low power consumption and high power supply noise rejection. Oscillator-level performance is maintained with Renesas' 4th Generation FemtoClock NG PLL technology, which delivers low rms phase jitter. The 83PN128I defaults to 161.132813MHz output using a 156.25MHz input with 2 select pins floating (pulled up with internal pullup resistors) but can also be set to 4 different frequency multiplier settings to support a wide variety of applications. The below table shows some of the more common application settings.

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