Texas Instruments manual Using The TPA0103 EVM Stand-Alone

Using The TPA0103 EVM Stand-Alone

3.4 Using The TPA0103 EVM Stand-Alone

Using the TPA0103 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 Mode A pin must be able to sup- ply enough current to overcome the pulldown resistor on the module (100 kΩ), possibly in parallel with a second pulldown resistor (100 kΩ).

3.4.1TPA0103 EVM Connected for Center Channel BTL Output

Figure 3±9. TPA0103 EVM Connected for Center Channel BTL Output

					5 V
	RHP	C7	R10		VDD		GND	R11 ROUT+
Audio					+				GND
	GND	C6	R8	R7	C11			S5
Input	RIN			R14			S3		COUT±
(Right)									HP/L*
	GND			R9			S4
	R15					C9 C10			MODE A
		C8		R17				R12
									MODE B
	R18			U1
							TPA0103		EVM
				R4
	R16							REV. A
Audio	GND	C3			C12		Lit.# SLOP103
				R13			S2		SDWN
						C5
Input	LIN	C1
							R6
(Left)	GND	R1		R2	±3	S1			COUT+
									GND
	LHP	C2	R3			R5
									LOUT+
					009228

External Mute

Control

(active high)

5 V

Table 3±3. Typical TPA0103 EVM Jumper Settings for Center Channel BTL Stand-Alone

EVM	S1	S2	S3	S4	S5
TPA0103	ON	ON	OFF	OFF	OFF

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

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