From Silicon Labs

Class D amplifiers can reach very high efficiency levels, resulting in significant power savings. However, the translation from the input signal to PWM and the PWM quantization itself can cause more distortion on the output than other amplifier architectures. The goal of a Class D amplifier implementation is to reduce this distortion to barely audible levels while maintaining very high power efficiency. This white paper discusses: how to easily add Class D audio to a 32-bit microcontroller based system, whether the audio data will be streaming or stored, and which types of streaming or storage interfaces are most appropriate for the product. Download this white paper from Silicon Labs to learn more about adding Class D audio to 32-bit embedded systems in an unconventional way.

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Products & Services
Audio Amplifier Chips
Audio amplifiers are used in circuits and systems to process audio signals.
Current Sense Amplifiers
Current sense amplifiers are integrated circuits with operational amplifiers and sense resistors that are used in measuring the amplitude and direction of current in circuits.
Power Operational Amplifiers
Power operational amplifiers (POA) are used to increase the power of low-level signals in applications that drive low impedances or reactive loads. They dissipate excess energy as heat, deliver extensive current, and can sustain relatively high supply voltages.
Operational Amplifiers
Operational amplifiers (op amps, op-amps) are general-purpose, closed-loop devices that are used to implement linear functions.

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Topics of Interest

Class D systems are quickly narrowing audio performance gap with simpler, more efficient designs offering fidelity that can surpass that of analog amplifiers. But with higher fidelity comes increased...

General-purpose 32-bit microcontroller (MCU) devices are ubiquitous in today's interconnected, sensor-rich embedded world. The proliferation of embedded intelligence and connectivity in virtually all...

Evaluating 32-bit microcontroller options for a new embedded design can be a tedious and time-consuming process. Having access to an easy-to-use configuration interface paired with software tools that...

2. MULTIRATE FILTERS IN DATA CONVERTERS Before physical signals can be processed digitally they have to be converted from the analog to the digital form, by means of an analog-to-digital (A/D)...

3.7 Audio Amplifiers 3.7.1 Introduction Many nonpower audio amplifier stages need not be matched to their source nor to their load. Since matching is used to maximize power transfer between...