Using the TPA032D02 Class-D EVM Stand-Alone
3-18
Details
3.5
Using the TPA032D02 Class-D EVM Stand-Alone
Using the TPA032D02 class-D stereo audio power amplifier evaluation
module stand-alone is much the same as using it with the platform. The same
9-V to 14-V power supply range and the isolated out+ and out– lines for BTL
operation (Section 3.2.3) requirements exist. Figure 3–10 shows the
connections that are required for operation (with the exception of the fault
monitor circuit, which is optional). The discussion in this section is in reference
to this figure unless otherwise noted.
Figure 3–10. TPA032D02 Class-D EVM Stand-Alone Connections for Stereo BTL Output
5 V
12 V
Left
Right
Audio
Inputs
(Right)
Audio
Inputs
(Left)
LED 0
R
Shutdown
Mute
R
5 V
LED 1
Fault
Monitor
U1
+RIN
–
R6
C5
Rout+
R2
R1
SD
Mute
Rout–
Lout+
Lout–
GND
VDD
GND
VCC
R3
GND
–
LIN+
GND
S1
Mute
S2
SD
C1
C4
C2
C3
C19
L3
L4
L1
L2
C14
TP2
TP1
TP4
C13
+
Rev. B
VCC
R4
+
TP3
R5
TPA032D02 EVM Board
SLOP245
Texas
2000
Instruments
Note:
Capacitors C13 and C14 are optional (not assembled) and locations for them on the EVM PCB have been provided to
increase design flexibility and allow decoupling capacitance to be added (Section 3.7 Power Supply Decoupling).
3.5.1
Power Connections
Power must be connected to both the VCC and VDD module pins. Power
supply ground can be connected to any module ground pin, although best
results are achieved if power supply grounds are connected to the pins
adjacent to the VCC, VCC2, and VDD module pins. The ground and power
wires should be twisted to reduce inductance and noise pickup if they are long.
Summary of Contents for TPA032D02
Page 4: ...iv...
