2CH Analog Input
From Other Source/
Digital Out
PC Interface
SPDIF/
Optical, Coax
TAS5707/9
Left
Right
TAS5707/9 EVM
MC57xxPSIA
B0340-01
Overview
1
Overview
The TAS5707/09 evaluation module demonstrates the TAS5707/09 device from Texas Instruments.
TAS5707 EVM is named "TAS5707EVM" and TAS5709 EVM is named as "TAS5709EVM". They both are
same EVM except for the audio amplifier. The TAS5707 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 TAS5707/09 device, review the device data sheet (
). The
Pulse Width Modulator (PWM) is based on TI's Equibit™ technology.TAS5709 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
TAS5707/09 registers through a USB port. See the
section for further details.
Figure 1. TAS5709EVM Printed-Circuit Board
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
3
SLOU231C – December 2008 – Revised October 2014
TAS5707EVM (TAS5709EVM) User's Guide
Copyright © 2008–2014, Texas Instruments Incorporated
