SLAU874 October   2022 TPA3223

 

  1.   TPA3223 Evaluation Module
    1.     Trademarks
    2. 1.1 Quick Start (BTL MODE)
      1. 1.1.1 Required Hardware
      2. 1.1.2 Connections and Board Configuration (BTL MODE)
      3. 1.1.3 Power-Up
    3. 1.2 Setup By Mode
      1. 1.2.1 BTL MODE (Stereo - 2 Speaker Outputs)
      2. 1.2.2 PBTL MODE (Mono – 1 Speaker Output)
        1. 1.2.2.1 Connections and Board Configuration
        2. 1.2.2.2 Power-Up
    4. 1.3 Hardware Configuration
      1. 1.3.1 Indicator Overview (OTW_CLIP and FAULT)
      2. 1.3.2 PWM Frequency Adjust
      3. 1.3.3 Modulation Modes (AD Mode and HEAD Mode)
      4. 1.3.4 Output Mode Selection
      5. 1.3.5 Audio Front End
      6. 1.3.6 EVM Power Tree
        1. 1.3.6.1 TPA3223 Supplies
        2. 1.3.6.2 TPA3223EVM Power Options
          1. 1.3.6.2.1 PVDD Only (12 V to 45 V)
          2. 1.3.6.2.2 PVDD (12 V to 45 V) and One Non-5-V Supply
          3. 1.3.6.2.3 PVDD (12 V to 45 V) and 5-V Supply
      7. 1.3.7 LC Response and Overview
      8. 1.3.8 Reset Circuit and POR
      9. 1.3.9 Analog-Input-Board Connector (J28)
    5. 1.4 EVM Design Documents
      1. 1.4.1 TPA3223 Board Layouts
      2. 1.4.2 TPA3223 Board Layouts
      3. 1.4.3 TPA3223EVM Schematics
      4. 1.4.4 TPA3223EVM Bill of Materials
  2.   Trademarks
  3. 1Quick Start (BTL MODE)
    1. 1.1 Required Hardware
    2. 1.2 Connections and Board Configuration (BTL MODE)
    3. 1.3 Power-Up
  4. 2Setup By Mode
    1. 2.1 BTL MODE (Stereo - 2 Speaker Outputs)
    2. 2.2 PBTL MODE (Mono – 1 Speaker Output)
      1. 2.2.1 Connections and Board Configuration
      2. 2.2.2 Power-Up
  5. 3Hardware Configuration
    1. 3.1 Indicator Overview (OTW_CLIP and FAULT)
    2. 3.2 PWM Frequency Adjust
    3. 3.3 Modulation Modes (AD Mode and HEAD Mode)
    4. 3.4 Output Mode Selection
    5. 3.5 Audio Front End
    6. 3.6 EVM Power Tree
      1. 3.6.1 TPA3223 Supplies
      2. 3.6.2 TPA3223EVM Power Options
        1. 3.6.2.1 PVDD Only (12 V to 45 V)
        2. 3.6.2.2 PVDD (12 V to 45 V) and One Non-5-V Supply
        3. 3.6.2.3 PVDD (12 V to 45 V) and 5-V Supply
    7. 3.7 LC Response and Overview
    8. 3.8 Reset Circuit and POR
    9. 3.9 Analog-Input-Board Connector (J28)
  6. 4EVM Design Documents
    1. 4.1 TPA3223 Board Layouts
    2. 4.2 TPA3223 Board Layouts
    3. 4.3 TPA3223EVM Schematics
    4. 4.4 TPA3223EVM Bill of Materials

1.5.9 Audio Front End

The TPA3223EVM includes options for single-ended or differential input signals. A configurable front end is built into the TPA3223 so that both single-ended and differential inputs can achieve the full scale output of the TPA3223 device without need for external front end op-amp. Note that when EVM RCA or XLR connectors are used, jumpers J11, J10, J21, and J20 must be installed in position 1:2 named XLR or RCA.

  • Single-ended input can be provided through RCA to inputs J3 and J18. Uninstall jumpers J4 and J12 using SE input so that the TPA3223 front-end will be configured for SE input.
  • Differential input can be provided through XLR to inputs J14 and J15. Install jumpers J4 and J12 when using DIFF input so that the TPA3223 front-end will be configured for DIFF input.

Input can also be provided through an audio plug-in board on J28. For this input type, change jumpers J11, J10, J21, and J20 to position 2:3 named AIB.

See the EVM schematic section (Section 1.7.5) for complete details.