Skip to main content
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

  • 1 LVCMOS/LVTTL output, 15Ω output impedance
  • Crystal oscillator interface designed for 18pF parallel resonant crystals
  • Output frequency range: 70MHz - 170MHz
  • VCO range: 560MHz - 680MHz
  • RMS phase jitter at 155.52MHz (1.875MHz - 20MHz): 0.48ps (typical)
  • RMS phase noise at 155.52MHz
    Offset                  Noise Power
    100Hz ................... -99.7 dBc/Hz
    1KHz .................... -120 dBc/Hz
    10KHz .................. -128 dBc/Hz
    100KHz ................ -127 dBc/Hz
  • 3.3V or 2.5V operating supply
  • -40°C to 85°C ambient operating temperature
  • Lead-Free fully RoHS compliant

Description

Generator and a member of the family of high performance devices from ICS. The 840051I can synthesize 10 Gigabit Ethernet, SONET, or Serial ATA reference clock frequencies with the appropriate choice of crystal and output divider. The 840051I has excellent phase jitter performance and is packaged in a small 8-pin TSSOP, making it ideal for use in systems with limited board space.

Applied Filters: