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Product details

Parameters

Device type Redriver Protocols PCIe1, PCIe2, PCIe3, sRIO, General purpose Application PCIe, SATA, SAS Number of channels (#) 8 Speed (Max) (Gbps) 8 Supply voltage (V) 2.5, 3.3 Rating Catalog Operating temperature range (C) -40 to 85 open-in-new Find other PCIe, SAS & SATA ICs

Package | Pins | Size

WQFN (NJY) 54 55 mm² 10 x 5.5 open-in-new Find other PCIe, SAS & SATA ICs

Features

  • Comprehensive Family, Proven System Interoperability
    • DS80PCI102 : x1 PCIe
      Gen-1, Gen-2, and Gen-3
    • DS80PCI402: x4 PCIe
      Gen-1, Gen-2, and Gen-3
    • DS80PCI800 : x8/x16 PCIe
      Gen-1, Gen-2, and Gen-3
  • Automatic Rate-Detect and Adaptation to
    Gen-1, Gen-2, and Gen-3 Speeds
  • Seamless Support for Gen-3 Transmit FIR Handshake
  • Receiver EQ (up to 36 dB), Transmit De-Emphasis
    (up to 12 dB)
  • Adjustable Transmit VOD: 0.8 to 1.3 Vp-p (Pin Mode)
  • 0.2 UI of Residual Deterministic Jitter at 8 Gbps After
    40 Inches of FR4 or 10 m 30-awg PCIe Cable
  • Low Power Dissipation With Ability to Turn Off Unused
    Channels: 65 mW/Channel
  • Automatic Receiver Detect (Hot-Plug)
  • Multiple Configuration Modes: Pins/SMBus/Direct-
    EEPROM Load
  • Flow-Thru Pinout: 54-Pin WQFN (10 mm-× 5.5-mm,
    0.5-mm Pitch)
  • Single Supply Voltage: 2.5 or 3.3 V (Selectable)
  • ±5 kV HBM ESD Rating
  • –40°C to 85°C Operating Temperature Range
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Description

The DS80PCI402 is a low-power, 4-lane repeater with 4-stage input equalization, and an output de-emphasis driver to enhance the reach of PCI-Express serial links in board-to-board or cable interconnects. This device is ideal for x4 (or lower) PCI-Express configuration, and it automatically detects and adapts to Gen-1, Gen-2, and Gen-3 data rates for easy system upgrade.

DS80PCI402 offers programmable transmit de-emphasis (up to 12 dB), transmit VOD (up to 1300 mVp-p), and receive equalization (up to 36 dB) to enable longer distance transmission in lossy copper cables (10 meters or more), or backplanes (40 inches or more) with multiple connectors. The receiver can open an input eye that is completely closed due to inter-symbol interference (ISI) introduced by the interconnect medium.

The programmable settings can be applied easily through pins or software (SMBus/I2C), or can be loaded through an external EEPROM. When operating in the EEPROM mode, the configuration information is automatically loaded on power up, which eliminates the need for an external microprocessor or software driver.

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Technical documentation

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Type Title Date
* Datasheet DS80PCI402 2.5-Gbps / 5.0-Gbps / 8.0-Gbps 4-Lane PCI-Express Repeater With Equalization and De-Emphasis datasheet (Rev. E) Jan. 09, 2015
Application notes 2Q 2016 Analog Applications Journal Issue Apr. 26, 2016
Application notes The intricacies of signal integrity in high-speed communications Apr. 26, 2016
Selection guides Analog for Xilinx (R) FPGAs Selection Guide - 2015 (Rev. B) Jan. 07, 2015
Application notes Understanding EEPROM Programming for High Speed Repeaters and Mux Buffers Oct. 09, 2014
User guides DS80PCI402EVK User's Guide Sep. 24, 2012

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$499.00
Description

The DS80PCI402EVK is a 4 channel SMA evaluation kit. It provides a complete high bandwidth platform to evaluate the signal integrity and signal conditioning features of the Texas Instruments DS80PCI402SQ – 2.5Gbps / 5.0 Gbps / 8.0 Gbps 8 Channel PCI Express Repeater with Equalization and (...)

Design tools & simulation

SIMULATION MODELS Download
SNLM143.PDF (25 KB) - IBIS Model
SIMULATION TOOLS Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide

CAD/CAE symbols

Package Pins Download
WQFN (NJY) 54 View options

Ordering & quality

Support & training

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Videos

Boost signal, extend reach with PCIe Gen 4 redriver

This video discusses the PCIe Gen4 and how signal conditioning is an integral part of this new an exciting technology.

Posted: 03-Jan-2020
Duration: 04:03

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