Using the TPA3244EVM in Different Output Configurations
13
SLVUAT5 – November 2016
Copyright © 2016, Texas Instruments Incorporated
TPA3244 Evaluation Module
3.3
Single-Ended (SE) Output (4.0) Operation
Configure the EVM as follows for 4 single-ended operations:
Table 7. SE 4.0 Default Jumper States
Jumper
Setting
Comment
J29
IN
PVDD to 15-V Buck
J31
IN
12-V LDO to 12-V terminal
J32
IN
3.3-V LDO to 3.3-V terminal
J33
IN
3.3-V LDO to 3.3-V terminal
J21
IN
CSTART SE
J16
3 to 4
Master mode
J5
1 to 2
M1 – 4XSE
J6
1 to 2
M2 – 4XSE
J22
OUT
OUTA capacitor shunt
J23
OUT
OUTB capacitor shunt
J24
OUT
OUTC capacitor shunt
J25
OUT
OUTD capacitor shunt
J26
2 to 3
INC select
J27
2 to 3
IND select
J7
OUT
PBTL select INC
J8
OUT
PBTL select IND
J10
OUT
INC/D DIFF input
J12
OUT
INC/D DIFF input
J4
2 to 3
INA/B DIFF input
J19
2 to 3
INC/D DIFF input
•
Set
J6
to H and
J5
to H.
•
Connect speaker/power resistor (2–4
Ω
) positive terminal to OUTA and Ground. Remove jumper
J22
.
•
Connect speaker/power resistor (2–4
Ω
) positive terminal to OUTB and Ground. Remove jumper
J23
.
•
Connect speaker/power resistor (2–4
Ω
) positive terminal to OUTC and Ground. Remove jumper
J24
.
•
Connect speaker/power resistor (2–4
Ω
) positive terminal to OUTD and Ground. Remove jumper
J25
.
•
Set both
J4
and
J19
jumper positions to DIFF.
•
Connect input to female RCA jack input A/AB (
RED
) for OUTA speaker.
•
Connect input to female RCA jack input B (
YELLOW
) for OUTB speaker.
•
Connect input to female RCA jack input C/CD (
WHITE
) for OUTC speaker.
•
Connect input to female RCA jack input D (
BLACK
) for OUTD speaker.
NOTE:
The performance of the TPA3244EVM/TPA3244 is dependent on the power supply. Design
the power supply with margins that can deliver the needed power. In low-frequency
applications, additional bulk capacitance may be needed. Replacing the bulk capacitors on
the TPA3244EVM with more capacitance may be necessary, depending on the power supply
used.