SNLS732 February   2023 DS160PR1601

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 and Latchup 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 Control and Configuration Interface
      1. 7.3.1 Pin Configurations for Lanes
        1. 7.3.1.1 Five-Level Control Inputs
      2. 7.3.2 SMBUS/I2C Register Control Interface
      3. 7.3.3 SMBus/I 2 C Primary Mode Configuration (EEPROM Self Load)
    4. 7.4 Feature Description
      1. 7.4.1 Linear Equalization
      2. 7.4.2 Flat-Gain
      3. 7.4.3 Analog EyeScan
      4. 7.4.4 Receiver Detect State Machine
      5. 7.4.5 Integrated Capacitors
    5. 7.5 Device Functional Modes
      1. 7.5.1 Active PCIe Mode
      2. 7.5.2 Active Buffer Mode
      3. 7.5.3 Standby Mode
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 PCIe 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
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  9. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  10. 10Mechanical, Packaging, and Orderable Information

Package Options

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

7.4.2 Flat-Gain

The overall datapath Flat-Gain (DC and AC) of the DS160PR1601 can be programmed through SMBus/I2C registers. #GUID-42AECF89-F89A-4F9A-BC92-CC6DFCD62F75/T5706319-17 shows five available flat gain settings to configure the DS160PR1601 datapaths.

Table 7-5 Flat Gain Settings
Flat_gain SETTING
000 -6 dB
001 -4 dB
011 -2 dB
101 0 dB (default and recommended)
111 +2dB
The default recommendation for most systems will be 0 dB.

The Flat-Gain and equalization of the DS160PR1601 must be set such that the output signal swing at DC and high frequency does not exceed the DC and AC linearity ranges of the devices, respectively.

Refer to the DS160PR1601 Programming Guide for detail register sets and control configuration procedures.