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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

  • One 3.3Vdifferential LVPECL output pair and one LVCMOS/LVTTL single-ended reference clock output
  • Selectable crystal oscillator interface or LVCMOS/LVTTL single-ended input
  • Crystal and CLK range: 19.44MHz – 27MHz
  • Able to generate GbE/10GbE/12GbE, Fibre Channel (1Gb/4Gb/10Gb), PCI-E and SATA from a 25MHz crystal
  • VCO range: 1.12GHz – 1.275GHz
  • Supports the following applications: SONET, Ethernet, Fibre Channel, Serial ATA, and HDTV
  • RMS phase jitter @ 622.08MHz (12kHz - 20MHz): 0.9ps (typical), 3.3V
  • Supply modes
    VCC/VCCO
    3.3V/3.3V
    3.3V/2.5V
    2.5V/2.5V
  • -40°C to 85°C ambient operating temperature
  • Available in lead-free (RoHS 6) package

Description

The 843001I-23 is a highly versatile, low phase noise LVPECL/LVCMOS synthesizer that can generate low jitter reference clocks for a variety of communication applications. The dual crystal interface allows the synthesizer to support up to three communication standards in a given application (i.e. SONET with a 19.44MHz crystal, 1Gb/10Gb Ethernet and Fibre Channel using a 25MHz crystal). The RMS phase jitter performance is typically less than 1ps, thus making the device acceptable for use in demanding applications such as OC48 SONET, GbE/10Gb Ethernet and SAN applications. The 843001I-23 is packaged in a small 24-pin TSSOP, E-Pad package.

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