1 overview – Texas Instruments TAS5727 User Manual
Page 2
2CH Analog Input
From Other Source/
Digital Out
PC Interface
SPDIF/
Optical, Coax
TAS5727
Left
Right
TAS5727 EVM
MC57xxPSIA
PBTL
Overview
12
DRC Options
...............................................................................................................
13
Advanced DRC Options
..................................................................................................
14
TAS5727EVM Top Composite Assembly
..............................................................................
15
MC57xxPSIA Top Composite Assembly
...............................................................................
List of Tables
1
Recommended Power Supplies
...........................................................................................
2
Bill of Materials for TAS5727EVM
......................................................................................
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
). 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
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
Copyright
©
2010, Texas Instruments Incorporated