TDA8932B/33(B) Class D Audio Amplifier in Single Supply Single Ended Configuration
The TDA8932B/33(B) is a class-D audio amplifier integrated circuit designed for efficient audio amplification in various applications. The circuit operates from a single power supply, which simplifies the design and reduces the number of components required.
In this configuration, the power supply voltage typically ranges from 10V to 30V, providing sufficient headroom for the amplifier to drive speakers effectively. The circuit includes input capacitors that block DC components while allowing audio signals to pass through. These capacitors ensure that the amplifier receives a clean audio signal without any bias voltage interference.
The TDA8932B/33(B) features built-in protection mechanisms, including thermal shutdown and short-circuit protection, which enhance the reliability of the circuit. Output filters, typically consisting of inductors and capacitors, are employed to smooth the amplified output signal, minimizing distortion and ensuring a high-quality audio output to the connected load, such as a speaker.
The feedback loop in the circuit is designed to stabilize the gain and improve linearity, contributing to the overall sound quality. Additionally, the circuit may include decoupling capacitors near the power pins of the TDA8932B/33(B) to filter out high-frequency noise and ensure stable operation.
Overall, this application circuit effectively demonstrates the capabilities of the TDA8932B/33(B) amplifier in a single-supply configuration, making it suitable for various audio amplification tasks in consumer electronics, automotive audio systems, and other applications requiring efficient audio performance.The following circuit diagram is a simplified application circuit of the TDA8932B/33(B) device when operated from an asymmetrical supply (single supply).. 🔗 External reference
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