Datasheet

Stand-Alone Connection Diagram
2-7
Operation
2.4 Stand-Alone Connection Diagram
Using the TPA0252 audio power amplifier evaluation module stand-alone is
much the same as using it with the platform. The same 4.5-V to 5.5-V power
supply range and the isolated OUT+ and OUT– lines for BTL operation
requirement exists.
Note that the source of any control signals applied to the EVM control pins
must be able to source or sink the current flowing through the pulldown or
pullup resistors on the module (100 kΩ).
Figure 2–4 shows a TPA0252 EVM connected for stereo BTL operation.
Figure 2–4. TPA0252 EVM Connected for Stereo BTL Output
GND
ROUT+
ROUT–
SE/BTL
S1
SHUTDOWN
GND
LOUT–
LOUT+
J1 UP
C3
VDD GND
L IN+
GND
L LINE–
L HP
VDD
GND
R HP
R LINE–
GND
R IN+
C12
+
TPA0252 EVM
SLOP333
U1
TEXAS
INSTRUMENTS
R4
R1
D1
SHUTDOWN
C6
S2
S3 DOWN
UP
R2
C13
C8
C7
C9
C10
C11
R5
TP1
HP/LINE
HP–SE
J5
D2
VAUX
TP2
C2
C5
C4
C1
R3
J2 DOWN
J3 CLK
J4
PCBEEP
Right
Left
5 VDC
Audio
Input
(Left)
Audio
Input
(Right)