Texas Instruments manual Description, 1.3 TPA0253 EVM Specifications, Introduction

Description

1.2 Description

The TPA0253 audio power amplifier evaluation module is a complete 1-watt mono audio power amplifier with stereo headphone drive. It consists of the TI TPA0253 mono 1-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 TPA0253 Audio Amplifier Evaluation Module

GND

RIN

C6

VDD GND

TEXAS INSTRUMENTS 2000

R3 C8

RO/MO+

GND

LO/MO+

STEREO/MONO

C7

R4

C1

+

U1

+

R8

R2

R5 S1

R7

	R1	R9
LIN C2		C4
GND		C5
	SHUTDOWN C3
TPA0253 EVM Board		VDD GND

R6 SHUTDOWN

J1 GND

SLOP270

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 TPA0253 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 automatically 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 TPA0253 EVM Specifications

Supply voltage range, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 V to 5.5 V Supply current, IDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5A max Continuous output power per channel, PO: 8-ΩBTL, VDD =5 V . . . . . . . 1 W

Audio input voltage, VI, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Vp±p max Minimum load impedance, RL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Ω

Introduction 1-3