Texas Instruments TPA005D12 manual Details, Monitor

Using The TPA005D12 Class-D EVM Stand-Alone

3.5 Using The TPA005D12 Class-D EVM Stand-Alone

Using the TPA005D12 class-D stereo audio power amplifier evaluation module stand-alone is much the same as using it with the platform. The same 4.5-V to 5.5-V power supply range and the isolated out+ and out± lines for BTL operation (Section 3.2.3) requirements exist. Figure 3±10 shows the connections that are required for operation (with the exception of the fault monitor circuit, which is optional). The discussion in this section is in reference to this figure unless otherwise noted.

Figure 3±10. TPA005D12 Class-D EVM Stand-Alone Connections for Stereo BTL Output

LED 1

5 V	R
R	LED 0
Fault
Monitor

5 V

SLOP246		TPA005D12 EVM Board
C14	VDD2	GND	TP9	TP11
	L2				L4
+

Audio Inputs (Right)

Audio

Inputs

(Left)

GND +RIN±		TP2	TP3	TP7
		C4		C18
	C1TP1	C5			C19

	SD			U1
	S2		TP6 TP5
	Mute	TP4
±LIN+GND	S1			C13
	C3
	C2

R2 R1	TP8
	+
	VDD GND

		Rout+
		Right
		Rout±
1999	Texas Instruments	TP12
TP10		Mute
		Mute
		Shutdown
		SD
		Lout±
L1		Left
		L3
		Lout+

5 V

3.5.1Power Connections

Power must be connected to both the VDD and VDD2 module pins. Power supply ground can be connected to any module ground pin, although best results are achieved if power supply grounds are connected to the pins adjacent to the VDD and VDD2 module pins. The ground and power wires should be twisted to reduce inductance and noise pickup if they are long.

3-18 Details