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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

  • 1 LVCMOS/LVTTL output
  • Crystal oscillator interface designed for a 24.576MHz, 18pF parallel resonant crystal
  • Output frequency: 98.304MHz (typical)
  • VCO range: 490MHz to 640MHz
  • RMS phase jitter @ 98.304MHz, using a 24.576MHz crystal, (12KHz - 20MHz): 0.75ps (typical)
  • RMS phase noise at 98.304MHz (typical
  • Offset Noise Power
  • 100Hz ..............-103.3 dBc/Hz
  • 1KHz ..............-126.2 dBc/Hz
  • 10KHz ..............-134.2 dBc/Hz
  • 100KHz ..............-132.9 dBc/Hz
  • 3.3V core/1.8V output operating supply
  • Lead-Free fully RoHS compliant
  • -40°C to 85°C ambient operating temperature

Description

The 840031I is an IEEE 1394b Clock Generator and a member of the HiPerClocksTM family of high performance devices from ICS. The 840031I uses a 24.576MHz crystal to synthesize 98.304MHz. The 840031I has excellent phase jitter performance, from 12KHz – 20MHz integration range. The 840031I is packaged in a small 8-pin SOIC, making it ideal for use in systems with limited board space.

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