Texas Instruments Using The TPA0202 EVM Stand-Alone, 1 TPA0202 EVM Connected for BTL Output

Using The TPA0202 EVM Stand-Alone

3.4 Using The TPA0202 EVM Stand-Alone

Using the TPA0202 Audio Power Amplifier Evaluation Module stand-alone is much the same as using it with the platform. The same 3-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 mute pin must be able to supply enough current to overcome the pulldown resistor on the module (100 kΩ).

3.4.1TPA0202 EVM Connected for BTL Output

Figure 3±9. TPA0202 EVM Connected for Stereo BTL Output

Audio

Input

(Right)

Audio

Input (Left)

				5 V
RHP	C7	R10	RVDD			GND		R11	ROUT+
				+		S5
									GND	Right
GND	C6	R8		C11				S6
RIN									ROUT±
			C8	R9		S3
									HP/L*
GND		R7				S4
				C9 C10					SE/BTL*
										5 V
TPA0202 SAMPLE EVM								R12
Lit.# SLOP202			U1
										External Mute
		S8				D1		R13
									S7	Control
		R2								(active high)
GND			C3	R4	C5		S2		MUTE
				C4
LIN	C1	R1						S1	LOUT±
GND				+
									GND	Left
LHP	C2	R3
				C12			R5		LOUT+
			LVDD			GND
				5 V

Table 3±1. Typical TPA0202 EVM Jumper Settings for BTL Stand-Alone

EVM	S1	S3	S4	S5	S6	S8
TPA0202	X	OFF	OFF	ON	X	OFF

Note: ON = shunt installed, OFF = open, X = don't care, S8 = always OFF

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