SNLU297 May   2021 DS320PR810

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Features
    2. 1.2 Applications
  3. 2Description
    1. 2.1  DS320PR810 5-Level I/O Control Inputs
    2. 2.2  DS320PR810 Modes of Operation
    3. 2.3  DS320PR810 SMBus or I2C Register Control Interface
    4. 2.4  DS320PR810 Equalization Control
    5. 2.5  DS320PR810 RX Detect State Machine
    6. 2.6  DS320PR810 DC Gain Control
    7. 2.7  DS320PR810 EVM Global Controls
    8. 2.8  DS320PR810EVM Downstream Devices Control
    9. 2.9  DS320PR810EVM Upstream Devices Control
    10. 2.10 Quick-Start Guide (Pin Mode)
    11. 2.11 Quick-Start Guide (SMBus Slave Mode)
  4. 3Test Setup and Results
  5. 4Schematics
  6. 5Board Layout
  7. 6Bill of Materials
  8. 7References

2.6 DS320PR810 DC Gain Control

When operating in Pin Mode, the GAIN pins can be used to set the overall data path DC (low frequency) gain of the DS320PR810 as shown in Table 2-6.

Table 2-6 GAIN Control
GAIN/SDA PIN LEVEL GAIN SETTING
L0 –6 dB
L1 –4 dB
L2 -2 dB
L3 +2 dB
L4 (Float) 0dB (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 Slave or Master Modes. Refer to the DS320PR810 Programming Guide