Introduction
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4 DISABLE Pushbutton ....................................................................................................... 6
5 CodecControl GUI ........................................................................................................... 6
6 TAS2552 GUI Gain and Input Settings ................................................................................... 7
7 TAS2552 EVM Power and USB Controller Schematic ................................................................. 9
8 TAS2552 EVM Schematic (2 of 3)....................................................................................... 10
9 TAS2552 EVM Schematic (3 of 3)....................................................................................... 11
10 TAS2552 EVM Top X-Ray View ......................................................................................... 12
11 TAS2552 EVM Bottom X-Ray View...................................................................................... 12
List of Tables
1 EVM Specifications.......................................................................................................... 2
2 TAS2552EVM Default Jumper Settings for Analog Input Operation.................................................. 4
3 Jumper Settings for Digital Input Mode ................................................................................... 8
4 Bill of Materials for TAS2552EMV ....................................................................................... 13
1 Introduction
This section provides an overview of the Texas Instruments (TI) TAS2552 Class-D mono speaker amplifier
evaluation module (EVM). It includes a brief description of the module and a list of EVM specifications.
1.1 Description
The TAS2552 is a high efficiency Class-D audio power amplifier with advanced battery current
measurement and an integrated boost converter. It drives up to 3.5 W into an 8-Ωspeaker. The built-in
boost converter generates the Class-D amplifier supply rail. This boosted supply rail provides louder audio
than a stand-alone amplifier directly connected to the battery.
The AGC function automatically adjusts Class-D gain to reduce battery current at end-of-charge voltages,
and prevents output clipping and distortion.
The Class-D output switching is adjustable by the I2C interface, providing a method to slow the Class-D
switching edge rate to improve EMI. For more information about the TAS2552, refer to the datasheet
(SLAS898).
1.2 EVM Specifications
Table 1. EVM Specifications
Boost input supply voltage 2.7 V to 5.5 V
Analog supply voltage 1.6 V to 2.0 V
Digital I/O supply voltage 1.5 V to 3.3 V
Continuous output power, PO, VDD = 3.6 V, 8 Ω, THD+N 1% 3.5 W
USB Connection Mini-USB
1.3 GUI Installation
Copy the supplied GUI into a directory and unzip it. Place the supplied scripts in the same directory
There is no set-up or other install necessary, simply run the GUI as described in Section 2.1.3 of this
document.
2TAS2552 EVM SLAU496A–February 2014–Revised July 2015
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