Digital Attenuation ATP Options | Texas Instruments DEM-DAI3793A

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Digital Attenuation (ATP) Options

Move the L-ch and R-ch sliders to adjust the gain of the incoming digital signals prior to conversion by the DAC.

∙The L-ch slider adjusts the DAC digital attenuator level

∙The R-ch slider controls the DAC digital attenuator level

∙Select the output channel to be either stereo or mono

∙The digital boost option enables a gain control of 0dB, +6dB, +12dB, or +18dB for the DAC digital input

3.2.3.4ALC (Automatic Level Control)

Figure 3-11shows the Automatic Level Control (ALC) function menu tab.

Figure 3-11. ALC Function Menu Tab

Auto Level Control (Record) Options

Select Recovery time and Attack time using the respective drop-down menu and corresponding gain control for each option to use the automatic level control function.

ALC compression and expansion characteristics are shown in Figure 3-12.

Compression is defined as avoiding degradation of sound quality by saturation when there are strong or excessively large sound data input.

Expansion means to boost weak or low input data in order to adjust the moderate amplitude level for recording.

0dB

Compression

(−2dB, −6dB, −12dB)

OutputAmplitude

Expansion

(0dB,+6dB,+14dB,+24dB)

0dB

InputAmplitude

Figure 3-12. ALC Compression and Expansion Characteristics

Set-Up Guide

SBAU127 –July 2007

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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.

Texas Instruments DEM-DAI3793A Digital Attenuation ATP Options, Auto Level Control Record Options

Models: DEM-DAI3793A