SLVUC37 March   2021 TPS25814

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Description
    2. 1.2 Features
    3. 1.3 Applications
  3. 2EVM Setup
  4. 3EVM Connectors, Test Points, and Devices
    1. 3.1 Power: 5 V and 3.3 V Supply
    2. 3.2 Power: 1.8 V Supply
    3. 3.3 Power: Barrel Jack Power Connector
    4. 3.4 Switches: ADCIN1 and ADCIN2
    5. 3.5 Switches: CTL, CHG_HI, EN
    6. 3.6 USB Type-C Connector: DFP and UFP
    7. 3.7 Device: TPS25814
    8. 3.8 Device: HD3SS3220
    9. 3.9 Device: TUSB542
  5. 4Testing Procedures
  6. 5PCB Layouts
  7. 6Schematics
  8. 7Bill of Materials

3.9 Device: TUSB542

The TUSB542 connects to the USB Type-C DFP port, and is used as a MUX the SS signals depending on the orientation of the device attached to the USB Type-C DFP port. The polarity of the MUX is controlled by the SEL pin, which is controller by the POL signal from the TPS25814. TX2_DFP_TUSB_P, TX2_DFP_TUSB_N and other similar signal names connect to the SS pins from the USB Type-C DFP port. RX_P, RX_N, TX_P, and TX_N connect to the HD3SS3220.

GUID-20210318-CA0I-TTSQ-MXPG-SSGPQKHSKWGQ-low.png Figure 3-9 TUSB542