SNLU288 December   2020

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Features
    2. 1.2 Applications
  3. 2Description
    1. 2.1  DS160PR412 and DS160PR421 4-Level I/O Control Inputs
    2. 2.2  DS160PR412 and DS160PR421 Modes of Operation
    3. 2.3  DS160PR412 and DS160PR421 SMBus or I2C Register Control Interface
    4. 2.4  DS160PR412 and DS160PR421 Equalization Control
    5. 2.5  DS160PR412 and DS160PR421 RX Detect State Machine
    6. 2.6  DS160PR412 and DS160PR421 DC Gain Control
    7. 2.7  DS160PR412-421EVM Global Controls
    8. 2.8  DS160PR412-421EVM Downstream Devices Control
    9. 2.9  DS160PR412-421EVM Upstream Devices Control
    10. 2.10 Quick-Start Guide (Pin Mode)
    11. 2.11 Quick-Start Guide (SMBus Slave Mode)
  4. 3Schematics
  5. 4PCB Layouts
  6. 5Bill of Materials

2.1 DS160PR412 and DS160PR421 4-Level I/O Control Inputs

Each DS160PR412 and DS160PR421 features 4-level input pins (MODE, GAIN/SDA, EQ0/ADDR, EQ1, and RX_DET/SCL) that are used to control the configuration of the device. These 4-level inputs use a resistor divider to help set the four valid levels to provide a wider range of control settings.

Table 2-1 Four-Level Control Pin Settings
PIN LEVELPIN SETTING
L01 kΩ to GND
L113 kΩ to GND
L259 kΩ to GND
L3Float