SNLS668 August   2022 DS320PR810

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 DC Electrical Characteristics
    6. 6.6 High Speed Electrical Characteristics
    7. 6.7 SMBUS/I2C Timing Charateristics
    8. 6.8 Typical Characteristics
    9. 6.9 Typical Jitter Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Linear Equalization
      2. 7.3.2 Flat-Gain
      3. 7.3.3 Receiver Detect State Machine
    4. 7.4 Device Functional Modes
      1. 7.4.1 Active PCIe Mode
      2. 7.4.2 Active Buffer Mode
      3. 7.4.3 Standby Mode
    5. 7.5 Programming
      1. 7.5.1 Pin mode
        1. 7.5.1.1 Five-Level Control Inputs
      2. 7.5.2 SMBUS/I2C Register Control Interface
        1. 7.5.2.1 Shared Registers
        2. 7.5.2.2 Channel Registers
      3. 7.5.3 SMBus/I 2 C Primary Mode Configuration (EEPROM Self Load)
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 PCIe Reach Extension – x16 Lane Configuration
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Receiving Notification of Documentation Updates
    2. 11.2 Support Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.2 Typical Applications

The DS320PR810 is a PCI Express linear redriver that can also be configured as interface agnostic redriver by disabling its Rx detect feature. The device can be used in wide range of interfaces including:

  • PCI Express 1.0, 2.0, 3.0, 4.0, and 5.0
  • Ultra Path Interconnect (UPI) 1.0 and 2.0
  • DisplayPort 2.0
The DS320PR810 is a protocol agnostic 8-channel4-lane linear redriver with PCI Express receiver-detect capability. Its protocol agnostic nature allows it to be used in PCI Express x4, x8, and x16 applications. Figure 8-1 shows how a number of DS320PR810 devices can be used to obtain signal conditioning for PCI Express buses of varying widths.

GUID-F37DCBF8-5219-45D1-93B6-CEAA92E86AAA-low.gif Figure 8-1 PCI Express x4, x8 and x16 Use Cases Using DS320PR810

Note: all eight channels of the DS320PR810 flow in same direction. Therefore, if the device is used for dual x4 configuration with two devices, then PD0 of both devices need to be connected together to implement PCIe state machine for the first x4 link while PD1 for the second x4 link.