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Quick Start (BTL Mode)
b. Connect the positive RCA male jack to the female RCA jack input C/CD (J18-RED) and
connect the negative RCA male jack to the female RCA jack input D (J15-BLACK).
c. Analog-Input Board (AIB) input: Set J26, J27, J34, and J35 to AIB.
10. Power up the power supply after correctly making all the connections. The 3.3-V and 12-V LEDs
(GREEN) then illuminate.
11. Set S1 to the NORMAL position.
12. The CLIP_OTW (ORANGE) and FAULT (RED) LEDs must be off if the audio source is off.
Table 1
lists the jumper configurations in BTL mode.
4
TPA3251 Evaluation Module
Table 1. Jumper Configurations (BTL Mode)
Jumper
Setting
J29
IN
J32
IN
J33
IN
J36
IN
J16
3 to 4
J22
IN
J23
IN
J24
IN
J25
IN
J5
2 to 3
J6
2 to 3
J7
OUT
J8
OUT
J4
1 to 2
J19
1 to 2
J26
1 to 2
J27
1 to 2
J34
1 to 2
J35
1 to 2
J21
OUT
Copyright © 2017, Texas Instruments Incorporated
Configuration for BTL
PVDD to 15-V BUCK
12-V LDO to 12-V TERM
3.3-V LDO to 3.3-V TERM
12-V LDO to GVDD
MASTER MODE 600kHz
OUTA CAP SHUNT
OUTB CAP SHUNT
OUTC CAP SHUNT
OUTD CAP SHUNT
M1-L
M2-L
PBTL SELECT INC
PBTL SELECT IND
INA/B SE INPUT
INC/D SE INPUT
INC-SEL RCA
IND-SEL RCA
INA-SEL RCA
INB-SEL RCA
C_START
www.ti.com
SLAU751 – November 2017
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