Texas Instruments TPA3223EVM, User Manual, Page: 15 / 33

Table 3-6. AIB Connector (J28) Pinout (continued)
Pin
#
Function Description
Audio EVM
Input/Output
16 FAULT Fault detection from audio Class-D EVM (Active Low) O
17 Analog IN_D Analog audio Input D (analog in EVM) , SDIN I2S Bus (digital in EVM) I
18 NC - -
19 NC - -
20 NC - -
21 GND Ground reference between audio plug-in module and audio class-D EVM -
22 GND Ground reference between audio plug-in module and audio class-D EVM -
23 NC - -
24 NC - -
25 NC - -
26 NC - -
27 Amp Out C Speaker-level output from audio class-D EVM (SE or one side of BTL) O
28 Amp Out D Speaker-level output from audio class-D EVM (SE or one side of BTL) O
Table 3-7. AIB Power Rail Specifications
EVM Power Rails Always Available Voltage Range Max Current Source
PVDD Yes 15–80 V 500 mA External Source
12 V Yes 12 V 500 mA LDO
3.3 V Yes 3.3 V 100 mA LDO
www.ti.com Hardware Configuration
SLAU874 – OCTOBER 2022
Submit Document Feedback
TPA3223 Evaluation Module 15
Copyright © 2022 Texas Instruments Incorporated