Preface

SBAU127 – July 2007

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About This Manual

This document provides the information needed to set up and operate the DEM-DAI3793A/3794A EVM evaluation module, a test platform for the 16-bit, low-power PCM3793A/PCM3794A stereo audio codecs. For a more detailed description of the PCM3793A/94A products, please refer to the product data sheets available from the Texas Instruments web site at http://www.ti.com. Support documents are listed in the sections of this guide entitled Related Documentation from Texas Instruments and Additional Documentation.

How to Use This Manual

Throughout this document, the abbreviation EVM and the term evaluation module are synonymous with the DEM-DAI3793A/3794A EVM. The abbreviation PCM3793A/94A refers to the PCM3793A/94A family of devices. Unless specifically noted, the information presented in this manual applies to both the PCM3793A and the PCM3794A.

Chapter 1 gives an overview of the PCM3793A/94A family of stereo audio coder/decoder devices (codecs). The PCM3793A/94A block diagram and primary features are also discussed.

Chapter 2 provides general information regarding EVM handling and unpacking, absolute operating conditions, and the default switch and jumper configuration. This chapter also discusses the EVM controller software

Chapter 3 is the hardware setup guide for the EVM, providing all of the necessary information needed to configure the EVM switches and jumpers for product evaluation.

Chapter 4 reviews the DEM-DAI3793A/3794A EVM switch and jumper configuration.

Chapter 5 discusses how to set up jumpers on the DEM-DAI3793A/3794A EVM motherboard for performance evaluation using an audio analyzer. It also presents the process for measuring dynamic characteristics and provides example characteristic data.

Chapter 6 includes the EVM electrical schematics, printed circuit board (PCB) layout, and the bill of materials.

Information About Cautions and Warnings

This document contains caution statements.

CAUTION

This is an example of a caution statement. A caution statement describes a situation that could potentially damage your software or equipment.

The information in a caution or a warning is provided for your protection. Please read each caution and warning carefully.

SBAU127 –July 2007

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Texas Instruments DEM-DAI3793A manual About This Manual How to Use This Manual, Information About Cautions and Warnings

DEM-DAI3793A specifications

The Texas Instruments DEM-DAI3793A is a versatile digital-to-analog converter (DAC) evaluation module designed for assessing the performance and capabilities of TI's DACs in various applications. This module features the high-performance DAC3793, which is widely recognized for its precision and flexibility, making it an ideal choice for audio, industrial automation, and communication systems.

One of the standout features of the DEM-DAI3793A is its ability to support a 16-bit resolution. This high resolution enables the module to provide fine granularity in signal representation, ensuring that even the most subtle changes in the input signal are accurately reflected in the output. The DAC3793 also boasts a high sampling rate, which is crucial for applications that require rapid signal processing and real-time data conversion.

The module incorporates advanced technologies such as dynamic element matching and integrated circuitry to minimize distortion and noise. These technologies are crucial for achieving high-fidelity audio playback and improving overall system performance. Additionally, the DEM-DAI3793A is designed to minimize power consumption while maintaining exceptional performance levels, making it suitable for battery-operated devices and energy-conscious applications.

Another significant characteristic of the DEM-DAI3793A is its ease of integration with various development environments. The evaluation module supports both hardware and software interfacing, allowing engineers to quickly prototype and test their designs. It comes equipped with a USB interface for seamless connectivity with computers, along with supporting software tools that facilitate the configuration and testing of the DAC's functionalities.

The DEM-DAI3793A is also designed with a robust set of output options, including differential and single-ended outputs. This flexibility allows for compatibility with a wide range of amplification and filtering circuits. Furthermore, the evaluation module is equipped with convenient power supply options, enabling it to operate in various settings without the need for extensive modifications.

In conclusion, the Texas Instruments DEM-DAI3793A is an exceptional evaluation module that showcases the capabilities of the DAC3793. With its high resolution, advanced technologies, ease of integration, and flexible output options, it serves as an indispensable tool for engineers and developers working on high-performance audio and data processing applications.