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9DB423B - Four Output Differential Buffer

General Description

The ICS9DB423 is compatible with the Intel DB400Q Differential Buffer Specification.

This buffer provides 4 PCI-Express SRC or 4 QPI clocks.

The ICS9DB423 is driven by a differential output pair from a CK410B+ or CK509B main clock generator.

Output cycle-cycle jitter <

Key Features

  • Benefits.
  • Spread spectrum modulation tolerant, 0 to -0.5% down spread and +/- 0.25% center spread.
  • Supports undriven differential outputs in Power Down and DIF_STOP# modes for power management. Output Features.
  • 4 - 0.7V current-mode differential output pairs.
  • Supports zero delay buffer mode and fanou.

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Datasheet Details

Part number 9DB423B
Manufacturer IDT
File Size 277.19 KB
Description Four Output Differential Buffer
Datasheet download datasheet 9DB423B Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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DATASHEET Four Output Differential Buffer for PCIe Gen 1, Gen 2 and QPI 9DB423B Recommended Application: DB400Q compatible part with PCIe Gen1, Gen 2 and QPI support General Description: The ICS9DB423 is compatible with the Intel DB400Q Differential Buffer Specification. This buffer provides 4 PCI-Express SRC or 4 QPI clocks. The ICS9DB423 is driven by a differential output pair from a CK410B+ or CK509B main clock generator. Key Specifications • Output cycle-cycle jitter < 50ps. • Output to Output skew <50ps • Phase jitter: PCIe Gen1 < 86ps peak to peak • Phase jitter: PCIe Gen2 < 3.0/3.1ps rms • Phase jitter: QPI < 0.5ps rms • RoHS compliant packaging Features/Benefits • Spread spectrum modulation tolerant, 0 to -0.5% down spread and +/- 0.25% center spread.