SNLU334A December   2023  – August 2024 DS320PR410

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1  DS320PR410 5-Level I/O Control Inputs
    2. 2.2  DS320PR410 Modes of Operation
    3. 2.3  DS320PR410 SMBus or I2C Register Control Interface
    4. 2.4  DS320PR410 Equalization Control
    5. 2.5  DS320PR410 RX Detect State Machine
    6. 2.6  DS320PR410 DC Gain Control
    7. 2.7  DS320PR410 EVM Global Controls
    8. 2.8  DS320PR410-RSC-EVM Downstream Devices Control
    9. 2.9  DS320PR410-RSC-EVM Upstream Devices Control
    10. 2.10 Quick-Start Guide (Pin Mode)
    11. 2.11 Quick-Start Guide (SMBus / I2C Secondary Mode)
  9. 3Implementation Results
    1. 3.1 Test Setup and Results
  10. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 Board Layout
    3. 4.3 Bill of Materials
  11. 5Additional Information
    1.     Trademarks
  12. 6References
  13. 7Revision History

2.6 DS320PR410 DC Gain Control

When operating in Pin Mode (MODE = L0), the GAIN pin can be used to set the overall data-path flat gain (DC and AC) of the DS320PR410 for channels 0-3 as shown in Table 2-6.

Table 2-6 GAIN Control
GAIN/SDA PIN LEVELGAIN SETTING
L0–6dB (–5.6dB actual)
L1–4dB (–3.8dB actual)
L2–2dB (–1.2dB actual)
L3+2dB (+2.6dB actual)
L4 (Float)0dB (+0.6dB actual - recommended for most use cases)

The DC gain of each channel of each device can also be set by writing to SMBus / I2C registers in Secondary or Primary Modes. Refer to the DS320PR410 Programming Guide for details.