The TAS5176DDW6EVM PurePath Digital™ customer evaluation module demonstrates the integrated
circuits TAS5176DDW and TAS5086DBT from Texas Instruments (TI).

The TAS5176 is a high performance, six-channel, digital-amplifier system with an advanced protection
system. The TAS5176 together with a high performance modulator like the TAS5086 shows low noise, low
THD+N and low idle power dissipation. Driving into clipping, 10% THD+N, the TAS5176 is capable of
sourcing more than 15W into an 8-

single-ended load (SE) per each front/satellite channel and a 4-

single-ended load (SE) subwoofer greater than 25W.

The TAS5086 is a six-channel digital pulse-width modulator (PWM) that provides both advanced
performance and a high level of system integration. The TAS5086 is designed to interface seamlessly with
most audio digital signal processors and MPEG decoders, accepting a wide range of input data and clock
formats.

This EVM, together with a TI input-USB board, is a complete 5.1 channels digital audio amplifier system
which includes digital input (S/PDIF), analog inputs, interface to PC and DAP features like digital volume
control, input and output muxes, and automute. There is a configuration option for power stage failure
protection.

Table 1. TAS5176DDW6EVM Specification

Key Parameters

Output Stage Supply Voltage:

0V – 28V

System Supply Voltage

15V – 28V

Number of Channels

5 x SE 8R, 1x SE 4R

Load Impedance Front/Satellites

Load Impedance Subwoofer

Output Power Front/Satellites

12W (10% THD+N)

Output Power Subwoofer

24W (10% THD+N)

DNR

>105 dB

PWM Processor

TAS5086DBT

Output Stage

TAS5176DDW

Other Features

—

TAS5176DDW6EVM

SLOU209A – September 2007 – Revised October 2007

Submit Documentation Feedback