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Using The TPA701 MSOP EVM Stand-Alone
3-11
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3.4 Using The TPA701 MSOP EVM Stand-Alone
Using the TPA701 MSOP Audio Power Amplifier Evaluation Module
stand-alone is much the same as using it with the platform. The same 2.5-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 shutdown pins must be able to
supply enough current to overcome the pulldown resistors on the modules
(20 kΩ || 20 kΩ for two EVMs).
3.4.1 TPA701 MSOP EVM Connected for BTL Output
Figure 3–8. TPA701 MSOP EVM Connected for Stereo BTL Output
Audio
Input
(Left)
External Mute
Control
(active high)
OUT+
IN
GND
Vdd GND
U1
†
R2
Shutdown
R3
OUT–
GND
C3
TEXAS
INSTRUMENTS
SLOP213
TPA701 MSOP EVM
C5
C2
C1
C4
S1
R1
+
Right
5 VDC
Audio
Input
(Right)
5 VDC GND
OUT+
IN
GND
Vdd GND
U1
†
R2
Shutdown
R3
OUT–
GND
C3
TEXAS
INSTRUMENTS
SLOP213
TPA701 MSOP EVM
C5
C2
C1
C4
S1
R1
+
Left
†
Due to the very small size of the MSOP IC package, the standard part number TPA701 is replaced with the code TIABA.