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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

  • Additive PCIe Gen 5 CC jitter < 60fs RMS (Fanout mode)
  • PCIe Gen 5 CC jitter < 150fs RMS (High-BW Zero-Delay Buffer (ZDB) mode)
  • 8 Low Power HCSL (LP-HCSL) outputs eliminate 4 resistors per output pair
  • Direct connection to 85Ω transmission lines
  • Dedicated OE# pin for each output
  • Spread spectrum tolerant
  • Pin or SMBus configuration
  • 3 selectable SMBus addresses
  • SMBus interface not required for device operation
  • Easy AC coupling to other logic families, see application note AN-891.
  • Space-saving 48-pin 6mm × 6mm VFQFPN

Description

The 9DBL0851 8-output 3.3V PCIe zero-delay/fanout buffer supports PCIe Gen 1 through Gen 5 and both Common and Independent Reference Clock architectures.

For information regarding evaluation boards and material, please contact your local sales representative.

Parameters

AttributesValue
Diff. Outputs8
Diff. Output SignalingLP-HCSL
Output Freq Range (MHz)1 - 200
Diff. Inputs1
Diff. Input SignalingHCSL
Accepts Spread Spec InputYes
Power Consumption Typ (mW)211
Supply Voltage (V)3.3 - 3.3
Output TypeLP-HCSL
Diff. Termination Resistors0
Package Area (mm²)36
Battery BackupNo
Battery SealNo
CPU Supervisory Function PORNo
Crystal Frequency TrimmingNo
Frequency Out PinNo
Inputs (#)1
Input Freq (MHz)1 - 200
Additive Phase Jitter Typ RMS (fs)300
FunctionZero Delay Buffer
Input TypeHCSL
Output Banks (#)1
Core Voltage (V)3.3
Output Voltage (V)0.8
Product CategoryPCI Express Clocks

Package Options

Pkg. TypePkg. Dimensions (mm)Lead Count (#)Pitch (mm)
VFQFPN6.0 x 6.0 x 0.9480.4

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