Texas Instruments TPA701 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 TPA701 MSOP EVM stand-alone or when connecting it into existing circuits or equipment. Connections to the TPA701 MSOP 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

		2
		Vdd	GND
	Shutdown
5		+	C3
	S1
	R1	U1 ²
	C1	C4	OUT±
	R2		GND
	C2	R3	OUT+
		C5
		TEXAS
	INSTRUMENTS
4	IN	SLOP213
	GND
	TPA701 MSOP EVM

6

²Due to the very small size of the MSOP IC package, the standard part number TPA701 is replaced with the code TIABA

-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.

-Inputs and outputs

3)Ensure that the signal source level is set to minimum.

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

5)Connect the Shutdown (S1) pin to VDD through a Normally Open switch.

6)Connect an 8-Ω± 32-Ωspeaker to the module OUT+ and OUT± pins.

-Power-up

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

The EVM should begin operation.

8) Adjust the signal source level as needed.

2-4 Quick Start