Using the TPA3244EVM in Different Output Configurations
12
SLVUAT5 – November 2016
Copyright © 2016, Texas Instruments Incorporated
TPA3244 Evaluation Module
3.2
PBTL (0.1) Output Operation
Configure the EVM as follows for PBTL operations:
Table 6. PBTL 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
OUT
CSTART SE
J16
3 to 4
Master mode
J5
2 to 3
M1 – PBTL
J6
1 to 2
M2 – PBTL
J22
IN
OUTA capacitor shunt
J23
IN
OUTB capacitor shunt
J24
IN
OUTC capacitor shunt
J25
IN
OUTD capacitor shunt
J26
2 to 3
INC select
J27
2 to 3
IND select
J7
2 to 3
PBTL select INC – GND
J8
2 to 3
PBTL select IND – GND
J10
OUT
INC/D DIFF input
J12
OUT
INC/D DIFF input
J4
1 to 2
INA/B SE input
J19
1 to 2
INC/D SE input
•
Set
J6
to H and
J5
to L.
•
Connect speaker/power resistor (2–4
Ω
) positive terminal to OUTA and OUTC (OUT A and C shorted).
•
Connect speaker/power resistor (2–4
Ω
) negative terminal to OUTB and OUTD (OUT B and D
shorted).
•
Install PBTL jumpers
J7
and
J8
(pulls input C and input D to GND).
•
For
single-ended mono input
, connect RCA male jack to female RCA jack input A/AB (
RED
) and set
J4
jumper positions to SE.
•
For
differential mono inputs
, connect positive RCA male jack to female RCA jack input A/AB (
RED
)
and connect negative RCA male jack to female RCA jack input B (
YELLOW
) and set
J4
jumper
position to DIFF.
NOTE:
INA
and
INB
are the inputs for PBTL and
INC
and
IND
are grounded for PBTL operation.