Operation
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SLOU444A – May 2016 – Revised May 2016
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Copyright © 2016, Texas Instruments Incorporated
TPA3136D2 Evaluation Module
2.5
Inputs and Outputs
Configure the inputs and outputs on the EVM:
1. For a BTL configuration, connect a load or loads across the outputs (OUTL+ and OUTL–) and (OUTR+
and OUTR–).
2. For PBTL configuration, connect a single load from one of the left speaker jacks to one of the right
speaker jacks, depending on how the filters are loaded. Apply a single input, differential or single-
ended, to the RIN RCA phono plug and PBTL pin (pin 14) is tied high with J13 out.
2.6
Power Up
Use the following settings for power up:
1. Select the desired gain and mode of operation via J13 (IN = BTL, OUT = PBTL). Configure the input
mode (J6/J10, OUT = Differential input mode, IN = Single-ended input mode).Verify correct voltage
and input polarity and turn the external power supplies ON. The EVM should begin operation.
2. Adjust the audio source for the correct volume.
2.7
Recommended Settings
The following list provides the settings for two different configurations:
1. Single-ended input, auto-recovery mode, without Plimit, BTL (stereo output)
Table 3. TPA3136D2EVM Setting 1
Setting
Description
J4 (LIN)
L channel audio input
J9 (RIN)
R channel audio input
J6, set to IN
Single-ended input
J10, set to IN
Single-ended input
J7, set to IN
Able to change PLIMIT value with R6
R6
Change PLMIT voltage value
(setting R6 = 0
Ω
disables Plimit function)
J12 (SD = FAULT) set to IN
Auto-recovery mode
J13 (PBTL) set to IN
BTL mode
2. Single-ended input, auto-recovery mode, PBTL (mono output)
Table 4. TPA3136D2EVM Setting 2
Setting
Description
J4 (LIN)
No audio input
J9 (RIN)
R channel audio input
J6, set to IN
Single-ended input
J10, set to IN
Single-ended input
J7, set to IN
Able to change PLIMIT value with R6
R6
Change PLMIT voltage value
(setting R6 = 0
Ω
disable Plimit function)
J12 (SD = FAULT) set to IN
Auto recover mode
J13 (PBTL) set to OUT
PBTL mode
