Texas Instruments manual Description, TPA0242 EVM Specifications

Description

1.2 Description

The TPA0242 stereo 2-W audio power amplifier evaluation module is a complete, 2-watt per channel stereo audio power amplifier. It consists of the TI TPA0242 stereo 2-W audio power amplifier IC along with a small number of other parts mounted on a circuit board that measures approximately 2 1/4 inches by 1 1/2 inches (Figure 1±1).

Figure 1±1. The TI TPA0242 Audio Amplifier Evaluation Module

R HP	VDD				GND
		+
GND					C10
R LINE±	C4 C3	C5	C6	R3	S2 R4	S3	S4
R IN+
SHUTDOWN
S1

R1			C11
C1	U1
C2
		C12

ROUT+

GND

ROUT±

HP/LINE

SE/BTL

PCBEEP

TEXAS INSTRUMENTS

L IN+ R2

L LINE±

GND

L HP

TPA00242 EVM Board

			SHUTDOWN
C7	C8	C9		LOUT±
	+	C13	SLOP275	GND
VDD		GND		LOUT+

Single in-line header pins extend from the underside of the module circuit board to allow the EVM to be plugged into the TI plug-n-play audio amplifier evaluation platform, or to be wired directly into existing circuits and equipment when used stand-alone.

The platform has room for a single TPA0242 evaluation module and is a convenient vehicle for demonstrating TI's audio power amplifier and related evaluation modules. The EVMs simply plug into the platform, which auto- matically provides power to the modules, interconnects them correctly, and connects them to a versatile array of standard audio input and output jacks and connectors. Easy-to-use configuration controls allow the platform and EVMs to quickly model many possible end-equipment configurations.

There is nothing to build, nothing to solder, and nothing but the speakers included with the platform to hook up.

1.3 TPA0242 EVM Specifications

Supply voltage range, VDD	4.5 V to 5.5 V
Supply current, IDD	. .	. . 2 A max
Continuous output power per channel, PO: 3-Ω BTL, VDD =5 V		. . . . . . 2 W
Audio input voltage, VI,: HP input	. .	5 Vpp max
Line input	. .	5 Vpp max
PC BEEP input	. .	5 Vpp max
Minimum load impedance, RL	. .	. . . . . . 3 Ω

Introduction 1-3