Datasheet

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1 Overview
Overview
6 Electrical Data .............................................................................................................. 10
7 Audio Performance Data .................................................................................................. 11
8 Thermal Specification ...................................................................................................... 11
9 Physical Specifications .................................................................................................... 11
10 Related Documentation From Texas Instruments ..................................................................... 21
A-1 Bill of Materials ............................................................................................................. 22
A-2 PCB Specification .......................................................................................................... 24
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- Ω single-ended load (SE) per each front/satellite channel and a 4- Ω
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 8 Ω
Load Impedance Subwoofer 4 Ω
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 2 SLOU209A – September 2007 – Revised October 2007
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