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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

  • Eight low skew, low additive jitter LVDS output pairs in two output banks
  • Individual OE control pin for each output
  • Bank-selectable pin for bank swing output
  • Two selectable, differential clock input pairs
  • Differential CLK, nCLK pairs can accept LVDS and CML differential input levels
  • Maximum input clock frequency of 2GHz
  • LVCMOS/LVTTL interface levels for the control input-select pin
  • Output skew of 20ps (typical)
  • Propagation delay of 450ps (maximum)
  • Low propagation delay variation across temperature for 1PPS applications
  • Low additive phase jitter, RMS; fREF = 156.25MHz, VPP = 1V, 12kHz to 20MHz: 50fs (typical)
  • Device current consumption (IDD): 225mA (typical)
  • Full 1.8V or 2.5V supply voltage
  • Lead-free (RoHS 6), 40-VFQFPN packaging
  • -40 °C to +85 °C ambient operating temperature
  • Supports case temperature up to +105 °C

Description

The 8P34S1208-1 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 8P34S1208-1 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 device ideal for clock distribution applications that demand well-defined performance and repeatability.

Two selectable differential inputs and eight low skew outputs are available. The integrated bias voltage reference enables easy interfacing of single-ended signals to the device inputs. The device is optimized for low power consumption and low additive phase noise.

The 8P34S1208-1 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)
VFQFPN6.0 x 6.0 x 0.9400.5

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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