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-

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

BTL

Load impedance

–8

Output power

100 W/4

, 10 % THD+N

Dynamic range

>105 dB

PWM processor

TAS5086DBT

Output stage

TAS5142DDV

TAS5142DDV6EVM2

SLLU095A – April 2007 – Revised April 2008

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