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

3.8 Device: HD3SS3220

The HD3SS3220 is connected to the USB Type-C UFP port, and is used as the UFP port controller as well as the MUX for the SS data lanes. The CC pins from the USB Type-C UFP port connect to the HD3SS3220 so that it may present an Rd, indicating a device connection to the attached DFP. RX_P, RX_N, TX_P, and TX_N connect to the TUSB542. TX1_UFP_HD_P, TX1_UFP_HD_N and other similar signal names connect to the SS pins from the USB Type-C UFP port.

GUID-20210318-CA0I-D83D-26KT-0SXRQ6Z6Q28T-low.png Figure 3-8 HD3SS3220