Texas Instruments TAS5708EVM, Руководство пользователя

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1 Overview
2CH Analog Input
From Other Source/
Digital Out
PC Interface
SPDIF/
Optical, Coax
TAS5708/10
Left
Right
TAS5708/10 EVM MC57xxPSIA
1.1 TAS5708(TAS5710)EVM and MC57xxPSIA Features
www.ti.com
Overview
The TAS5708/10 evaluation module (EVM) demonstrates the TAS5708/10 device from Texas Instruments.
The TAS5708/10 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
TAS5708/10 device, review the device data sheet (
SLOS570) . The Pulse Width Modulator (PWM) is
based on TI's Equibit™ technology.
The EVM software with its graphic user interface (GUI) facilitates evaluation by providing access to the
TAS5708/10 registers through a USB port. See the
Using the EVM Software section for further details.
Figure 1. TAS5708(TAS5710)EVM Printed-Circuit Board
The TAS5708(TAS5710)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
•
Channel evaluation module design
•
Self-contained protection systems and control pins
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USB interface
•
Standard I
2
S data input using optical or coaxial inputs
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Analog input through analog-to-digital converter
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Subwoofer connection—the PWM terminal provides the PWM signal and power to an external
subwoofer board
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Double-sided, plated-through PCB, 1-oz copper, 2 mm
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Access to control signal gain and data format through EVM-software GUI
SLOU232A – January 2009 – Revised January 2009 TAS5708(TAS5710)EVM 3
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