Table 2-1. Jumper and Switch Configurations (PBTL Mode)
Component
Component Description
Configuration for PBTL
J23
Gain/CLKSYNC Select
MSTR(Primary) 20 dB
J24
5V
IN
J4, J12
Input DIFF/SE Select
OUT = DIFF IN, IN =SE IN
J10, J11, J20, J21
AIB Input Select
Position 1:2 for XLR/RCA, Position 2:3
for AIB
J6
HEAD/AD Mode Select
IN
J7, J8
PBTL/BTL Select
Position 2:3 for PBTL
S1
RESET Control
RESET
S2
MUTE Control
MUTE
J13
Auto Retry
OUT
J29
PVDD-IN
IN
J26
12V-IN
IN
J5
5V-IN
IN
J27
3.3V-IN
IN
J17
OSC Output
No Connection
J16
FREQ_ADJ
Position 3:4 MASTER(Primary) MODE
2.2.2 Power-Up
Ensure that required connections and configurations have been checked. The TPA3223EVM board can now be
powered on.
1. Enable the power supply at 12 V to 45 V and ensure that LED D5 illuminates. LEDs D2 and D4 must not be
illuminated.
2. Bring the EVM out of RESET state by switching RESET (S1) to NORMAL. You can see the FAULT LED (D4)
blink once quickly, then remain unilluminated.
3. Bring the EVM out of MUTE state by switching MUTE (S2) to NORMAL.
4. Note that the EVM does not have volume control, configure your analog input for a reasonable audio level
before beginning audio playback.
5. Enable audio input playback and the EVM should begin driving audio out of the left and right speakers. If
resistor loads are used for testing instead of speakers, then the load will now be energized.
Setup By Mode
SLAU874 – OCTOBER 2022
TPA3223 Evaluation Module
9
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