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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 low skew, low additive jitter LVDS output pairs
  • Two selectable, differential clock input pair
  • Differential CLK, nCLK pairs can accept the following differential input levels: LVDS, CML
  • Maximum input clock frequency: 1.5GHz
  • Output skew: 10ps (typical)
  • Propagation delay: 400ps (maximum)
  • Low additive phase jitter, RMS; fREF = 156.25MHz, 10kHz to 20MHz: 34fs (typical)
  • Device current consumption (IDD):
    • 65mA typical: 1.8V
    • 75mA typical: 2.5V
  • Full 1.8V or 2.5V supply voltage
  • Lead-free (RoHS 6), 16-lead VFQFN package
  • -40 °C to 85 °C ambient operating temperature
  • Supports case temperature up to +105 °C
  • Supports PCI Express Gen 1-5

Description

The 8P34S1204 is a high-performance differential LVDS fanout buffer. The device is designed for the fanout of 1PPS signals or high-frequency, very low additive phase-noise clock and data signals. The 8P34S1204 supports fail-safe operation and is characterized to operate from a 1.8V or 2.5V power supply. Guaranteed output-to-output and part-to-part skew characteristics make the 8P34S1204 ideal for those clock distribution applications demanding well-defined performance and repeatability. Two selectable differential inputs and four low skew outputs are available. The integrated bias voltage reference enables easy interfacing of single-ended signals to the differential device input. The device is optimized for low power consumption and low additive phase noise.

Parameters

AttributesValue
Temp. Range (°C)-40 to 85°C
Product CategoryClock Buffers & Drivers, Clock Multiplexers, RF Buffers

Package Options

Pkg. TypePkg. Dimensions (mm)Lead Count (#)Pitch (mm)
VFQFPN3.0 x 3.0 x 1.0160.5

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