E-TDA7476

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Audio Special Purpose provides high quality audio output performance specifically for home or automotive applications. As part of this application field, the E-TDA7476 is an integrated circuit designed for audio preamplification and power amplification applications. This integrated circuit is equipped with an internal charge pump and a slew rate of 7.8V/us, making it ideal for low supply voltage applications.

The E-TDA7476 is a single-supply, dual-channel audio amplifier integrated circuit. It has two ground-referenced output channels, with each able to produce up to 12W output power. The built-in thermal shutdown function helps protect the stage against excessive power dissipation. It operates from a 7V to 25V DC supply, making it suitable for various applications.

The audio signal is applied through an external amplifier to the differential input. The signal is then sent through to the E-TDA7476\'s circuitry where it can be adjusted with the gain control. The gain for each channel is adjustable from +4dB to -28dB in steps of 0.5dB. To ensure a faithful reproduction of the audio signal, a low noise function is also available.

The E-TDA7476 features an integrated low-noise P-channel enhancement-mode MOSFET on-chip to provide higher output power. To optimize the output power/supply current ratio, the P-channel MOSFET can be driven in either linear or saturation mode. The switching control pin can be used to select the operating mode.

Once the signal is amplified, the E-TDA7476 converts the amplified signal into a current output signal using a second stage of MOSFETs. The outputs are then connected to an external speaker and/or a power amplifier to deliver the desired sound level.

The E-TDA7476 is optimized to provide high efficiency and low distortion. Its high slew rate of 7.8V/us allows it to drive high frequency signals with minimal distortion. Additionally, the integrated charge pump supplies Negative supply to the chip, eliminating the need for additional external power supply.

The E-TDA7476 is available in a 24-pin PowerSSO package and is designed to provide reliable operation in harsh environments, such as automotive and marine audio systems. Its low cost, small size and ease of use makes it an ideal candidate for a variety of audio applications, such as car CD players, stereos, audio transmitters and receivers, and audio amplifiers.

In conclusion, the E-TDA7476 is a highly efficient and reliable integrated circuit for audio preamplification and power amplification applications. With its low cost, low noise, high efficiency, and small size, it is an ideal choice for various audio applications, such as car audio systems, stereos, and audio transmitters and receivers.

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