SNLU301 November   2021 SN75LVPE5412 , SN75LVPE5421

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Features
    2. 1.2 Applications
  3. 2Description
    1. 2.1  Redriver-Mux 5-Level I/O Control Inputs
    2. 2.2  Redriver-Mux Modes of Operation
    3. 2.3  Redriver-Mux SMBus or I2C Register Control Interface
    4. 2.4  Redriver-Mux Equalization Control
    5. 2.5  Redriver-Mux RX Detect State Machine
    6. 2.6  Redriver-Mux DC Gain Control
    7. 2.7  DS320PR412-421EVM Global Controls
    8. 2.8  DS320PR412-421EVM Downstream Devices Control
    9. 2.9  DS320PR412-421EVM 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 Redriver-Mux 5-Level I/O Control Inputs

Each DS320PR412, DS320PR421, SN75LVPE5412 and SN75LVPE5421 features 5-level input pins (MODE, GAIN/SDA, EQ0/ADDR, EQ1, and RX_DET/SCL) that are used to control the configuration of the device. These 5-level inputs use a resistor divider to help set the five valid levels to provide a wider range of control settings.

Table 2-1 Five-Level Control Pin Settings
PIN LEVELPIN SETTING
L01 kΩ to GND
L18.25K Ω to GND
L224.9 Ω to GND
L375 Ω to GND
L4Float