Texas Instruments SLOU121 manual Block Diagram of SE Volume Control

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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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Contents User’s Guide Important Notice EVM Important Notice EVM Warnings and Restrictions Read This First Information About Cautions and WarningsRelated Documentation From Texas Instruments Contents Figures TablesIntroduction Feature Highlights TPA6011A4 EVM Specifications DescriptionIntroduction Quick Start EVM JP6 JP7Precautions PowerQuick Start List for Platform Platform PreparationsModule Preparation Typical TPA6011A4 EVM Jumper Settings Quick Start List for Stand-Alone Quick Start Module MapControl Inputs Quick Start Quick Start Details TI Plug-N-Play Audio Amplifier Evaluation Platform TPA6011A4 Audio Power Amplifier Evaluation Module TPA6011A4 EVMTPA6011A4 EVM Schematic Diagram 1 TPA6011A4 Audio Amplifier ICVolume Control Inputs and GainBlock Diagram of SE Volume Control DC Volume Control BTL Mode, VDD = 5 Differential Input Single-Ended Operation Depop CircuitryBTL Operation EVM Insertion Installing and Removing EVM Boards2 TPA6011A4 Module Jumper Settings and Switches EVM Removal2.1 S1 Shutdown Switch 2.2 J1 Output Mode Jumper2.4 J3 Input and Output Mode Jumper Signal Routing2.3 J2 Input Mode Jumper 2.5 J4 Fade Mode JumperHeadphone Output Jack Signal ConditioningMute Shutdown/Mode Mute/Mode Polarity Select JP8 Headphone Jack Control SignalsMute/Mode Select JP6 Power Requirements Outputs Inputs and OutputsInputs Using the TPA6011A4 EVM Stand-Alone 1 TPA6011A4 EVM Connected for BTL Output2 TPA6011A4 EVM Connected for Single-Ended Output 11. TPA6011A4 EVM Connected for Stereo Single-Ended OutputReference TPA6011A4 EVM Layers and Board Schematic ReferenceTPA06011A4 EVM Schematic Diagram TPA6011A4 EVM Parts List TPA6011A4 EVM Parts List

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.

The document also covers various technologies that Texas Instruments employs in its semiconductor solutions. These technologies include advanced CMOS processes, which enable high integration and low power consumption. Additionally, the use of innovative materials and structures enhances the performance and efficiency of the components, thereby providing manufacturers with the tools they need to create cutting-edge electronics.

Another important characteristic of SLOU121 is its user-friendly layout and structure. Information is organized in a manner that allows for quick referencing, which is essential for busy engineers who need to find specific data efficiently. The inclusion of diagrams, graphs, and tables further aids in visualizing the performance metrics and operational limits of the devices discussed.

Moreover, SLOU121 delves into specific applications where TI products excel. These applications range from automotive systems to industrial automation and consumer electronics. The guide also addresses compatibility with industry standards and protocols, which is vital for integration into existing systems.

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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