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2CH Analog Input
From Other Source/
Digital Out
PC Interface
SPDIF/
Optical, Coax
TAS5731
Left
Subwoofer
TAS5731EVM
MC57xxPSIA
Right
Overview
The EVM, together with other TI components on this board, is a complete 2.1-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
1.1
TAS5731EVM and MC57xxPSIA Features
•
Channel evaluation module design
•
Self-contained protection systems and control pins
•
USB interface
•
Standard I
2
S data input using optical or coaxial inputs
•
Analog input through analog-to-digital converter
•
Subwoofer connection—the PWM terminal provides the PWM signal and power to an external
subwoofer board
•
Double-sided, plated-through PCB, 1oz copper, 2mm
•
Access to control signal gain and data format through EVM-software GUI
3
SLOU331A – December 2011 – Revised August 2014
TAS5731EVM Evaluation Module
Copyright © 2011–2014, Texas Instruments Incorporated