Texas Instruments TAS5727 quick start Overview

Overview		www.ti.com
12	DRC Options	11
13	Advanced DRC Options	11
14	TAS5727EVM Top Composite Assembly	14
15	MC57xxPSIA Top Composite Assembly	14
		List of Tables
1	Recommended Power Supplies	4
2	Bill of Materials for TAS5727EVM	15

1Overview

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 SLOS637). 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.

MC57xxPSIA

PC Interface

SPDIF/

Optical, Coax

2CH Analog Input

From Other Source/

Digital Out

TAS5727 EVM

TAS5727

Left

Right

PBTL

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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