Datasheet

1 Overview
Overview www.ti.com
A-14 Engineering Change Order ............................................................................................... 32
List of Tables
1 TAS5142DDV6EVM2 Specification ....................................................................................... 2
2 Recommended Supply Voltages ........................................................................................... 6
3 TAS5142 Warning/Error Signal Decoding ................................................................................ 9
4 General Test Conditions ................................................................................................... 10
5 TAS5086 Register Settings ............................................................................................... 10
6 Electrical Data .............................................................................................................. 10
7 Audio Performance ......................................................................................................... 11
8 Thermal Specification ...................................................................................................... 11
9 Physical Specifications .................................................................................................... 11
A-1 Parts List .................................................................................................................... 23
The TAS5142DDV6EVM2 PurePath Digital™ customer evaluation module demonstrates the integrated
circuits TAS5142DDV and TAS5086DBT from Texas Instruments (TI).
The TAS5142DDV is a high-performance, integrated stereo digital amplifier power stage designed to drive
4- Ω speakers at up to 100 W per channel. The device incorporates TI’s Equibit™ technology and is
designed to be used with TI’s Equibit modulators. This system requires only a simple passive
demodulation filter to deliver high-quality, high-efficiency audio amplification.
TAS5086DBT is a high-performance 32-bit (24-bit input) multichannel PurePath Digital pulse width
modulator (PWM) based on Equibit technology with a new, fully symmetrical AD modulation scheme.
This EVM is configured with 6 BTL channels.
This EVM, together with a TI input-USB board, is a complete 5.1-channel digital audio amplifier system
that includes digital input (S/PDIF), analog inputs, interface to PC, and DAP features like digital volume
control, input and output multiplexers.
Table 1. TAS5142DDV6EVM2 Specification
Key Parameters Values
Output stage supply voltage 0 V–32 V
System supply voltage 15 V–20 V
Number of channels 6 × BTL
Load impedance 4 Ω –8 Ω
Output power 100 W/4 Ω , 10 % THD+N
Dynamic range >105 dB
PWM processor TAS5086DBT
Output stage TAS5142DDV
TAS5142DDV6EVM2 2 SLLU095A – April 2007 – Revised April 2008
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