Digital Amplifier User's Guide

2.1 TAS5102EVM and TAS5103EVM Features
2.2 PCB Key Map
SPDIFReceiver 3.3VSMPS
USBController TAS5086
TAS5102
Power
Supply
Overview www.ti.com
The TAS5103 is a compact, high-power, digital amplifier power stage designed to drive an 8- Ω
loudspeaker up to 15 W/channel at 10% THD+N. It contains integrated gate-drive, four matched and
electrically isolated enhancement-mode N-channel power DMOS transistors, and protection/fault-reporting
circuitry. The DAP package has a PowerPAD™ package on the bottom side for heat transfer through the
printed-circuit board.
Either of these EVMs plus the HPLMC-012 form a complete two-channel, digital audio amplifier system
which includes digital input (S/PDIF), control interface (via USB) to PC and DAP (digital audio processor)
features like digital volume control, bass management, and input and output multiplexers.
This EVM is designed to illustrate a low-cost approach to an amplifier design using this device. Improved
performance, at increased cost, can be achieved with a high-performance configuration.
• Modular approach comprised of TAS5102EVM or TAS5103EVM amplifier modules and HPL-MC012
modulator/controller module
• Two-channel evaluation module.
• Self-contained protection system (short-circuit and thermal).
• Standard I
2
S and I
2
C control via SPDIF and USB
• Double-sided, plated-through printed-circuit board (PCB) layout
• Single power supply operation
Physical structure for the TAS5102/3EVM is illustrated in Figure 1 .
Figure 1. Physical Structure for TAS5102/3EVM
TAS5102EVM and TAS5103EVM for the TAS5102 and TAS5103 Digital Amplifier Power Output Stages6 SLLU106 – August 2008
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