Texas Instruments TPA0142, Руководство пользователя

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Quick Start List for Stand-Alone
2-6 Quick Start
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Evaluation module preparations
6) To allow the module SE/BTL control input to switch the amplifier IC
between single ended (SE) and bridge-tied load (BTL) output modes, set
output mode jumper S3 to
OFF. To keep the module amplifier IC in the
single-ended output mode regardless of the control input state, set jumper
S3 to
ON.
7) Use potentiometer R2 to set the volume when the module is in the BTL
output mode (module gain is reduced by 6 dB in SE mode). Turn R2
clockwise to increase the volume.
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Control inputs
8) Connect control lines to the various module control input pins as needed:
a) SE/BTL: A high selects the single-ended (SE) output mode; a low or
float selects the bridge-tied load (BTL) output mode.
b) SHUTDOWN: A low shuts down the amplifier IC on the module; a high
or float allows normal operation.
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Powerup
9) Verify correct voltage and input polarity and set the external power supply
to ON.
The EVM should begin operation.
10) Adjust the signal source level as needed.