Texas Instruments TPA0103 manual Quick Start List for Stand-Alone

Quick Start List for Stand-Alone

2.3 Quick Start List for Stand-Alone

Follow these steps to use the TPA0103 EVM stand-alone or connect it into existing circuits or equipment. Connections to the TPA0103 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 are shown in Figure 2±2 and details appear in Chapter 3.

Figure 2±2. Quick Start Module Map

4

C7 R10 RHP

GNDR8 C6

RIN

GND

R15

		C8
	R18
R16
GND		C3
LIN	C1	R1
GND
LHP	C2	R3

	VDD		GND	R11 ROUT+
	+				GND
R7	C11			S5
R14			S3		COUT±
					HP/L*
R9			S4
		C9 C10			MODE A
R17				R12
					MODE B
U1
			TPA0103		EVM
R4
				REV. A
	C12		Lit.# SLOP103
R13		C5	S2		SDWN
R2	±3	S1	R6		COUT+
					GND
		R5
					LOUT+
	009228

3

-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.

-TPA0103 EVM jumpers

Setting the EVM for Center or L/R as indicated in the table below will cause the EVM to operate in the center channel BTL mode (speaker).

3) Set the jumpers on the TPA0103 EVM as indicated in Table 2±5.

Table 2±5. TPA0103 EVM Stand-Alone Jumper settings

EVM OUTPUT MODE	S1	S2	S3	S4	S5
Center or L/R	ON	ON	OFF	OFF	OFF

Note: OFF = Open, ON = Closed

-Inputs and outputs

4)Ensure that signal source level adjustments and EVM gain controls, R13, R14, and R17, are set to minimum.

5)Connect the audio source to the module IN+ and GND pins, taking care to observe marked polarity.

6)Connect the SDWN pin to VDD through a Normally Open switch.

7)Connect a 4-Ωto 8-Ωspeaker to the module COUT+ and COUT± pins.

-Power-up

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

9)Adjust the signal source level and EVM gain levels as needed.

2-4 Quick Start