TDA7563BH

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The TDA7563BH is an integrated Verstaerker IC designed to provided two-channel high-performance audio amplification by using complementary PNP/NPN transistor pairs. It offers high performance, specifically designed for car audio applications. Intended for battery voltage operation, it can operate with supplies in the range of 6V to 14V, and can be thermally shut off for protection from over-temperature.

The TDA7563BH has several characteristics that enable it to be used for a wide variety of audio amplifiers, such as: low power consumption, low quiescent current, high signal level voltage gain , low harmonic and crossover distortion, low output noise, low distortion, high slew rate, and low offsets. It is also capable of providing high levels of sound pressure and output power.

The TDA7563BH is based on the standard power amplifier design, with the addition of supply resistors, gain-boosting capacitors, and transistors that provide protection against thermal and over-current events. The basic design of the TDA7563BH consists of two single-ended, complimentary voltage-gain stages, followed by an output stage driving an Class-B output stage. The output stage produces high-power sound, while the voltage-gain stages provide voltage gain that can be adjusted via the supply voltages.

The TDA7563BH features two discrete input channels, with a differential input. The differential input insensitive to common mode signals, which reduces interference on the audio signal. The TDA7563BH also features a low-pass filter on each input, allowing rejection of HF signals not intended for the amplifier. The only external component necessary for the use of this amplifier is an external supply capacitor for each channel.

The protection section of the TDA7563BH includes a thermal shutdown, over-current, and over-voltage protection. This protection prevents the IC from being damaged by external forces, such as excessive temperature or voltage. The IC also includes a soft-start circuit, which eliminates the need for an external soft-start capacitor. The soft-start circuit also helps protect the amplifier from high in-rush current.

The TDA7563BH is typically used in automotive and home audio systems, such as speakers, car amplifiers, and home theaters. It is also suitable for high-end audio applications, such as studio monitor speakers and professional audio amplifiers. Overall, the TDA7563BH offers good sound quality, reduced input noise, and high output power.

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