Datasheet

2.1.3 Power Up
3 Reference
3.1 TPA3124D2EVM Schematic
LEFT_IN
RIGHT_IN
VCC
VCC
VCC
VCC
VCC
C9DNI
C16DNI
R3
10K
R3
10K
J4
GND
J4
GND
TP4TP4
SW1
SHUTDOWN
SW1
SHUTDOWN
U1
TPA3124D2
U1
TPA3124D2
PVCCL1
1
SDZ
2
PVCCL2
3
MUTE
4
LIN
5
RIN
6
BYP
7
GND1
8
GND2
9
PVCCR1
10
VCLAMP
11
PVCCR2
12
PVSSR2
13
PVSSR1
14
OUTR
15
BSR
16
GAIN1
17
GAIN0
18
AVCC2
19
AVCC1
20
BSL
21
OUTL
22
PVSSL2
23
PVSSL1
24
TH
ERMAL
25
C1
4
0.1
uF
C1
4
0.1
uF
TP5TP5
R6
4.7
K
R6
4.7
K
+
C11
220
uF
+
C11
220
uF
1
2
L2
33uH
L2
33uH
J7
VCC
J7
VCC
C6
1.0
uF
C6
1.0
uF
R11 0 R11
R9
0
R9
0
R4
10K
R4
10K
TP12
RGND
TP12
RGND
SW2
MUTE
SW2
MUTE
TP3TP3
C12 0.22uFC12 0.22uF C9
0.22
uF
C9
0.22
uF
R7
4.7
K
R7
4.7
K
+
C8
470
uF
+
C8
470
uF
1
2
J8
GND
J8
GND
TP2TP2
J10
RIN
J10
RIN
2
3
1
J9
LIN
J9
LIN
2
3
1
+
C10
470uF
+
C10
470uF
1 2
TP10
GND
TP10
GND
C16
0.22
uF
C16
0.22
uF
R1
10K
R1
10K
C15 0.22uFC15 0.22uF
TP7
RIG
HT_OUT
TP7
RIG
HT_OUT
J5
GND
J5
GND
J1
GAIN0
J1
GAIN0
1
2
+
C17
470uF
+
C17
470uF
1 2
C3
1.0uF
C3
1.0uF
J3
+LOUT
J3
+LOUT
TP11
LGND
TP11
LGND
TP1
LE
FT_IN
TP1
LE
FT_IN
C19
0.22
uF
C19
0.22
uF
R2
10K
R2
10K
+
C2
47
0uF
+
C2
47
0uF
1
2
J6
+ROUT
J6
+ROUT
R10
0
R10
0
C13
10u
F
C13
10u
F
C4
1.0uF
C4
1.0uF
J2
GAIN1
J2
GAIN1
1
2
C7 0.1uFC7 0.1uF
C20
0.22
uF
C20
0.22
uF
TP6
LE
FT_OUT
TP6
LE
FT_OUT
TP9
INPUT_GND
TP9
INPUT_GND
C1 0.1uFC1 0.1uFTP8
RIG
HT_IN
TP8
RIG
HT_IN
L1
33uH
L1
33uH
C5
1.0
uF
C5
1.0
uF
Reference www.ti.com
1. Verify correct voltage and input polarity, and turn the external power supplies ON.
The EVM begins operation
2. Adjust the input signal.
3. Adjust the control inputs to the desired settings.
4. Adjust the amplifier gain by installing/removing the gain jumpers, J1 and J2.
Figure 3. TPA3124D2EVM Schematic
TPA3124D2 Audio Power Amplifier Evaluation Module4 SLOU229 – June 2008 – Revised November 2008
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