Texas Instruments TPA3002D2EVM, User Manual, Page: 19 / 24

TPA3002D2EVM Schematic
3-3 Reference
Figure 3–2. TPA3002D2 with External Headphone Amplifier Schematic
C1
1
C17
10 nF
C20
C12
10 nF C21
C2
C1
C4
C3
LIN+
LIN
–
RIN
–
RIN+
SHUTDOWN
BSLP
PVCCL
PVCCL
LOUTP
PGNDL
PGNDL
LOUTN
LOUTN
PVCCL
PVCCL
BSLN
SD V2P5 RINP LINN LINP A
VDDREF
VREF V
ARDIFF
V
ARMAX
VOLUME REFGND
VCLAMPL
BSRP
PVCCR
PVCCR
ROUTP
ROUTP
PGNDR
PGNDR
ROUTN
ROUTN
PVCCR
PVCCR
BSRN
RINN
C5
R2
S1
Vcc
P3
P2
P1
T7
T6
T5
LOUT–
VCC
VCC
LOUT+
C9
C15
10 nF
C18
C10
10 nF
C19
ROUT–
VCC
L3
(Bead)
C24
1 nF
L4
(Bead)
C25 1 nF
GND GND
GND
GND
AGND
AGND
AGND
PGND
PGND
L1
(Bead)
C22
1 nF
L2
(Bead)
C23 1 nF
VCC
220 pF
C6
R1
C8
100 nF
C14
C7
Cvcc
VCLAMPR
MODE
MODEB
V
AROUTR
V
AROUTL
AGND
A
VDD
AGND
COSC ROSC A
VCC
A
VDD
A
VDD
A
VCC
Cin1
Cin2
C16
Cout1
Cout2
Rout2
Rout1
A
VDD
R3
IN1
Vo
1
VDD
Vo
2
IN2 SD
GND
BYP
TP
A61
10A2
Rhps2
Rhpf2
Rhps1
Rhpf1
Rin1
Rin2
ROUT+
0.1
µ
F
0.1
µ
F
10
µ
F
1
µ
F
120
k
Ω
10
k
Ω
10
k
Ω
1
µ
F
10
µ
F
1
µ
F
10
k
Ω
10
k
Ω
0.47
µ
F
1k
Ω
1k
Ω
220
µ
F
10
k
Ω
220
µ
F
10
k
Ω
1
µ
F
120
k
Ω
0.1
µ
F
0.1
µ
F
10
µ
F
120
k
Ω
1
µ
F
1
µ
F
1
µ
F
1
µ
F
1
µ
F
50
k
Ω
50
k
Ω
50
k
Ω
LOUTP
TP
A3002D2
(T1)
(T2)
(T3)
(T4)
C13
0.1
µ
F
PGND