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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
  • Individual OE control pin for each output
  • Two selectable, differential clock input pairs
  • Differential CLK, nCLK pairs can accept the following differential input levels: LVDS, CML
  • Maximum input clock frequency: 2GHz
  • LVCMOS/LVTTL interface levels for the control input select pin
  • Output skew: 10ps (typical)
  • Propagation delay: 475ps (maximum)
  • Low propagation delay variation across temperature for 1PPS applications
  • Low additive phase jitter, RMS; fREF = 156.25MHz, VPP = 1V, 12kHz – 20MHz: 50fs (typical)
  • Device current consumption (IDD): 100mA (typical)
  • Full 1.8V or 2.5V supply voltage
  • Lead-free (RoHS 6), 28-Lead VFQFPN package
  • -40 °C to 85 °C ambient operating temperature
  • Supports case temperature up to +105 °C

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.

The 8P34S1204-1 has an individual OE control pin for each output, which provides excellent control over the output enable functions.

Parameters

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

Package Options

Pkg. TypePkg. Dimensions (mm)Lead Count (#)Pitch (mm)
VFQFPN5.0 x 5.0 x 0.9280.5

Applications

  • 4G and 5G radio unit (RU) and distributed unit (DU) systems
  • Ethernet switches/routers
  • Medical imaging
  • Professional audio and video
  • Data centers and servers

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