Texas Instruments TPA0243 manual Quick Start List for Stand-Alone, ±2. Module Map

2.3 Quick Start List for Stand-Alone

Follow these steps to use the TPA0243 EVM stand-alone or when connecting it into existing circuits or equipment. Connections to the TPA0243 module header pins can be made via individual sockets, wire-wrapping, or soldering to the pins, either on the top or the bottom of the module circuit board. Numbered callouts for selected steps appear in Figure 2±2.

Figure 2±2. Module Map

2

4

GND

RIN

C6

VDD GND

TEXAS INSTRUMENTS 2000

R3 C8

RO/MO+

GND

LO/MO+

STEREO/MONO

C7

5

6

R4

C1

+

U1

+

R8

8

R2

R5 S1

R7

4

	R1	R9
LIN C2		C4
GND		C5
	SHUTDOWN C3
TPA0243 EVM Board		VDD GND

R6 SHUTDOWN

J1 GND

SLOP269

5

-Power supply

1)Ensure that all external power sources are set to OFF.

2)Connect an external regulated power supply set to 5 V to the module VDD and GND pins taking care to observe marked polarity.

-Inputs and outputs

3)Ensure that audio signal source level adjustments are set to minimum.

4)Connect the right (left) positive lead of the audio source to the module RIN (LIN) pins and the negative lead to the GND pin.

5)Connect a speaker to the module RO/MO+ and LO/MO± pins OR plug a headphone into to EVM headphone jack J1.

-Evaluation module preparations

6)Adjust EVM potentiometers R2 and R4 to approximately mid point.

-Power-up

7)Verify correct voltage and input polarity and set the external power supply to ON.

The EVM should begin operation.

8)Adjust the signal source level or adjust potentiometers R2 and R4 on the EVM as needed.

2-4