Setup By Mode
8
SLAU754A – January 2018 – Revised August 2019
Copyright © 2018–2019, Texas Instruments Incorporated
TPA3220 Evaluation Module
2.2.1
Connections and Board Configuration
illustrates the connectors and jumpers on the EVM.
Figure 5. EVM Board With Connectors and Jumpers
Use the following steps when connecting and configuring the board:
1. Ensure the power supply is OFF. Connect power supply positive terminal to J1 PVDD (red) and
negative terminal to J1 GND (black).
2. Connect one speaker, power resistor load (2–8
Ω
) to TPA3220EVM positive output terminal (J9
OUT1+ (red)) and other side of speaker, power resistor to TPA3220EVM negative output terminal (J9
OUT1– (black)).
3. Use a short banana cable to connect J2 OUT2+ to J9 OUT1+ and a second banana short banana
cable to connect J2 OUT2– to J9 OUT1–. This forms the parallel connection of both OUTx+ to the one
side of the speaker and parallel connection of both OUTx– to the other side of the speaker.
4. Check to make sure that the power supply is connected to J1 only and the speaker is connected to J9
or J2 only, as their colors are the same.
5. Input Configuration:
1.
Differential Inputs:
connect one differential XLR audio input to DIFF IN1 (J14). Install jumpers
J10, J11, J20, and J21 to position 1:2 which is labeled as
RCA
or
XLR
. Jumpers J4 and J12 must
be uninstalled for DIFF input.
2.
Single-Ended Inputs:
connect one single-ended RCA audio input to IN1P (J3). Install jumpers
J10, J11, J20, and J21 to position 1:2 which is labeled as
RCA
or
XLR
. Jumpers J4 and J12 must
be installed for SE input.
3.
Audio Interface Board Input:
Install jumpers J10, J11, J20, and J21 to position 2:3 which is
labeled as
AIB
. Jumpers J4 and J12 must be installed for SE input from the AIB or uninstalled for
DIFF input from the AIB.
6. Ensure that RESET S1 and MUTE S2 are in the lower positions of RESET and MUTE, respectively.
7. Check
for all necessary jumper and switch configurations.
