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1 overview – Texas Instruments TAS5727 User Manual

Page 2

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2CH Analog Input

From Other Source/

Digital Out

PC Interface

SPDIF/

Optical, Coax

TAS5727

Left

Right

TAS5727 EVM

MC57xxPSIA

PBTL

Overview

www.ti.com

12

DRC Options

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11

13

Advanced DRC Options

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14

TAS5727EVM Top Composite Assembly

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MC57xxPSIA Top Composite Assembly

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14

List of Tables

1

Recommended Power Supplies

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4

2

Bill of Materials for TAS5727EVM

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1

Overview

The TAS5727EVM evaluation module demonstrates the TAS5727 device from Texas Instruments. The
TAS5727 combines a high-performance PWM processor with a class-D audio power amplifier. This EVM
can be configured with two bridge-tied loads (BTL) (2.0). For detailed information about the TAS5727EVM
device, review the (

device data sheet SLOS670

). The Pulse Width Modulator (PWM) is based on TI's

Equibit

technology. The TAS5727 has additional audio processing features like 3D, Bass Boost and

2-band DRC.

The EVM software, with its graphic user interface (GUI), facilitates evaluation by providing access to the
TAS5727EVM registers through a USB port. See the

Using the EVM Software

section for further details.

Figure 1. TAS5727EVM Printed-Circuit Board

The EVM together with other TI components on this board, is a complete 2.0-channel digital audio
amplifier system. The MC57XXPSIA Controller board includes a USB interface, a digital input (SPDIF),
analog inputs via the ADC, power inputs, and other features like a mute function and power down.

Figure 2. Complete System and EVM Signal Path Overview

2

TAS5727 25W Digital Input Amplifier

with EQ and 2-Band DRC

SLOU299

December 2010

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