Texas Instruments mixed signal products tpa0103 User Manual
Using The TPA0103 EVM Stand-Alone
3-16
Details
3.4
Using The TPA0103 EVM Stand-Alone
Using the TPA0103 Audio Power Amplifier Evaluation Module stand-alone is
much the same as using it with the platform. The same 3-V to 5.5-V power
supply range and the isolated OUT+ and OUT– lines for BTL operation
requirement exists.
much the same as using it with the platform. The same 3-V to 5.5-V power
supply range and the isolated OUT+ and OUT– lines for BTL operation
requirement exists.
Note that the mute signal applied to the EVM Mode A pin must be able to sup-
ply enough current to overcome the pulldown resistor on the module (100 k
ply enough current to overcome the pulldown resistor on the module (100 k
Ω
),
possibly in parallel with a second pulldown resistor (100 k
Ω
).
3.4.1
TPA0103 EVM Connected for Center Channel BTL Output
Figure 3–9. TPA0103 EVM Connected for Center Channel BTL Output
Audio
Input
(Right)
Audio
Input
(Left)
External Mute
Control
(active high)
5 V
GND
ROUT+
HP/L*
COUT–
MODE A
SDWN
GND
COUT+
LOUT+
C1
C2
R6
GND
GND
LIN
LHP
C3
R16
C10
C9
VDD
GND
R9
C7
C6
RHP
RIN
GND
GND
S3
S4
S5
R11
C11
+
S2
MODE B
R5
S1
C12
R18
R2
R1
R3
R13
R14
R4
C8
R15
R12
R7
R8
R10
C5
TPA0103 EVM
REV. A
Lit.# SLOP103
–3
009228
R17
U1
5 V
Table 3–3. Typical TPA0103 EVM Jumper Settings for Center Channel BTL Stand-Alone
EVM
S1
S2
S3
S4
S5
TPA0103
ON
ON
OFF
OFF
OFF
Note:
ON = shunt installed, OFF = open, X = don’t care