Premium Audio Amplifier Solutions

Premium audio amplifiers play an important role in the processing and routing of audio-centric signals to various Class-D amplifiers, subwoofers, and remote tuners in a vehicle. Premium audio amplifiers add extra audio functionality to existing infotainment systems, so designers can service premium vehicle trims without needing to upgrade the performance of the primary head unit.

In this respect, Analog Devices’ SHARC^® digital signal processors (DSPs) offer a truly scalable solution with pin compatibility across multiple generations. This allows system architects to select a processor based on the exact performance requirements needed by the audio amplifier for a given vehicle trim.

Value and Benefits

Advanced Audio: SHARC & SigmaDSP^® enable 3D surround, ANC/RNC, beamforming, and in-car comms.
Flexible Tuning: SigmaStudio^® GUI supports algorithm dev and audio configuration.
Integrated Power: Single IC powers multi-rail systems directly from battery.
Efficient Design: High power density reduces thermal load and BOM cost.

Signal Chains

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Software

SigmaStudio®

Graphical development tool for programming, development, and tuning software for ADI DSP audio processors and A²B^® transceivers. X +

SigmaStudio®

The SigmaStudio^® graphical development tool is the programming, development, and tuning software for the SigmaDSP^® and SHARC^® audio processors and A²B^® transceivers. Familiar audio processing blocks can be wired together as in a schematic, and the compiler generates DSP-ready code and a control surface for setting and tuning parameters. This tool allows engineers with no DSP code writing experience to easily implement a DSP into their design and yet is still powerful enough to satisfy the demands of experienced DSP designers. SigmaStudio links with both Analog Devices evaluation boards and production designs to provide full in-circuit real-time IC control.

SigmaStudio includes an extensive library of algorithms to perform audio processing such as filtering, mixing, and dynamics processing, as well as basic low-level DSP functions and control blocks. Advanced record-side processing algorithms such as Enhanced Stereo Capture and wind noise detection are included in the standard libraries. Plug-in algorithms from Analog Devices and 3rd party partners can be added to SigmaStudio's drag-and-drop library.

Along with its graphical DSP signal flow development, SigmaStudio also includes other features to speed up the design cycle from product concept to release. SigmaStudio includes tools for intuitively setting control registers, calculating tables of filter coefficients, visualizing filter magnitude and phase responses, generating C header files, and sequencing a series of controls to ease your transition from SigmaStudio to system implementation on your microcontroller.

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