Texas Instruments TAS5806MEVM, User Manual, Page: 2 / 18

Hardware Overview
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2 SLAU524 – May 2019
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TAS5806MEVM User's Guide
1 Hardware Overview
The TAS5806MEVM showcases the latest TI digital input Class-D closed-loop amplifier. The TAS5806M is
an inductor-less digital input stereo Class-D audio amplifier with enhanced processing and low power
dissipation. The EVM is used in conjunction with the PurePath Console Motherboard (PPCMB). The
PVDD supply is provided via the TAS5806MEVM (
Figure 1 ) and is regulated to 5 VDC and 3.3 VDC on
the PPCMB. The PPCMB provides the I
2
S, I
2
C, and 3.3 VDC to the TAS5806MEVM.
Figure 1. TAS5806MEVM
1.1 Features
The EVM has the following features:
• 96-kHz input sample rate support
• 2.0, mono and 2.1 capable
• Operates in BTL or PBTL
• PurePath Console Motherboard provides flexible input signal routing (USB, SPDIF, and analog)
• Demonstration, evaluation and development environment via the PurePath Console 3 software (GUI)
1.2 Functions
The TAS5806MEVM is controlled by the PPCMB. The digital audio data input to the TAS5806MEVM is
sent from PPCMB and is selectable from USB audio, optical SPDIF, coaxial SPDIF, PSIA (external I
2
S)
and analog ADC sources.
1.3 Detailed Operations
Upon power-on, the PPCMB uses USB audio input (default). The I
2
S signals LRCLK, SCLK, SDIN and
MCLK come from the TAS1020B.