Texas Instruments manual Description, 1.3 TPA301 EVM Specifications, Introduction

Description

1.2 Description

The TPA301 audio power amplifier evaluation module is a complete, low-pow- er single-channel audio power amplifier. It consists of the TI TPA301 350-mW low-voltage audio power amplifier IC along with a small number of other parts mounted on a circuit board that is approximately one and a quarter inches square (Figure 1–1).

Figure 1–1. The TI TPA301 Audio Amplifier Evaluation Module

	Shutdown		+5 V		GND
			C6			R5
S1				C3		C5
						DL
R1
						OUT–
C2
						GND
				U1
R2			C4
						OUT+
C1			R3			Lit.#
		–3				SLOP 115
	IN+
		R4
	GND					EVM
	TPA301

Single in-line header pins are mounted to 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 pair of TPA301 evaluation modules 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 TPA301 EVM Specifications

Supply voltage range, VDD	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	2.5 V to 5.5 V
Supply current, IDD	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	250 mA, max
Continuous output power, PO: 8-Ω	BTL, VDD =5 V:	. . . . 350 mW
32-Ω	BTL, VDD =5 V:	. . . . . 75 mW
Audio input voltage, VI	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 2 Vpp, max
Minimum load impedance, RL . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . 8 Ω

Introduction 1-3