Texas Instruments TPA0202 manual Quick Start List for Stand-Alone, ±3. Quick Start Module Map

Quick Start List for Stand-Alone

2.3 Quick Start List for Stand-Alone

Follow these steps to use the TPA0202 EVM stand-alone or when connecting it into existing circuits or equipment. Connections to the TPA0202 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±3 and details appear in Chapter 3.

Figure 2±3. Quick Start Module Map

								9	7
	RHP	C7	R10	RVDD			GND		R11	ROUT+
					+		S5
										GND
	GND				C11
		C6	R8						S6
	RIN									ROUT±
				C8	R9		S3				10
										HP/L*
	GND		R7				S4
					C9 C10					SE/BTL*
	TPA0202 SAMPLE EVM								R12		8
11	Lit.# SLOP202			U1
			S8				D1		R13	S7
			R2
	GND			C3	R4	C5		S2		MUTE	6
					C4
	LIN	C1	R1						S1	LOUT±
	GND				+
										GND
	LHP		R3
		C2			C12
								R5		LOUT+
				LVDD			GND

-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. Separate right channel and left channel VDD supplies can be connected, or a single supply can be used for both.

-Inputs and outputs

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

4)Connect the audio source to the module RIN/LIN and GND or RHP/LHP and GND pins of each channel taking care to observe marked polarity.

5)Select output mode:

a)For BTL output, connect an 3-Ω± 8-Ωspeaker to the module OUT+ OUT± pins of each channel,

or

b)For single-ended output, connect a headphone or an 3-Ω± 8-Ω

speaker to the module OUT+ and GND pins of each channel through a 33 μF to 1000 μF output-coupling capacitor (Figure 3±10).

Quick Start 2-5