The TPA6011A4 Audio Power Amplifier Evaluation Module

SEDIFF and SEMAX pins control the singe-ended gain proportional to the gain set by the voltage on the VOLUME pin. When SEDIFF = 0 V, the difference between the BTL gain and the SE gain is 6 dB. The voltage on the SEDIFF terminal is subtracted from the voltage on the VOLUME terminal and the value is used to determine the SE gain. Turning the potentiometer R6 in the clock- wise direction decreases the voltage on the SEDIFF terminal, resulting in a higher volume in the single-ended mode of operation. The voltage on the SE- DIFF terminal is subtracted from the voltage on the VOLUME terminal and the value is used to determine the SE gain.

The SEMAX terminal controls the maximum gain for single ended mode. Turn- ing potentiometer R7 in the clockwise direction increases the voltage on the SEMAX terminal, resulting in a higher volume limit for single-ended operation. The functionality of the SEDIFF and SEMAX pin are combined to set the SE gain. A block diagram of the combined functionality is shown in Figure 3–5. The value obtained from the block diagram for SE_VOLUME is a dc voltage that can be used to determine the SE gain using Table 3–2. Again, the voltages listed in the table are for VDD = 5 V. The values must be scaled for other VDD voltages.

Figure 3–5. Block Diagram of SE Volume Control

 

SEDIFF (V)

SEMAX (V)

 

VOLUME (V)

+

–

VOLUME–SEDIFF

Is SEMAX>

 

 

NO

 

 

(VOLUME–SEDIFF)?

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

SE_VOLUME (V) = SEMAX (V)

SE_VOLUME (V) = VOLUME (V) – SEDIFF (V)

3-6

Details

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Texas Instruments SLOU121 manual Block Diagram of SE Volume Control
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SLOU121 specifications

Texas Instruments SLOU121 is a comprehensive technical document that serves as a guide for the evaluation and implementation of various TI products. This document highlights the operational capabilities, design considerations, and practical applications of TI’s semiconductor solutions, with a focus on enabling engineers and designers to optimize their designs effectively.

One of the main features of SLOU121 is its emphasis on performance. It provides detailed specifications and operational data that help users understand the key parameters of TI products, such as voltage levels, current ratings, and thermal characteristics. This information is crucial for engineers as they design circuits that require precision and reliability.

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In addition to technical specifications, the document provides guidance on practical implementation strategies. This includes best practices for layout design, thermal management, and component selection. By incorporating these recommendations, engineers can mitigate potential issues during the design phase and ensure that their final products meet or exceed performance expectations.

Overall, Texas Instruments SLOU121 is an essential resource that combines technical knowledge with practical advice, helping engineers to leverage TI technologies for innovative product development. By providing a thorough understanding of features, technologies, and recommendations, SLOU121 equips designers with the necessary tools to create high-performance electronic solutions.
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