TDA7479AD

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RF Demodulators are used to analyze and detect the change of waveform characteristics in a wide frequency band. The TDA7479AD is an RF demodulator that integrates the functions of radio frequency filter, demodulation, and amplitude or frequency detector into one product, providing convenient and efficient operation.

The TDA7479AD includes a buck converter circuit that reduces power consumption on standby mode compared to non-standby mode. This feature helps to achieve a power saving operation that reduces the cost of the system. Aside from the buck converter circuit, there is also a variable gain amplifier that supports a wide range of gain settings, which make it suitable for applications with varying signal levels. The TDA7479AD also features a power-on reset circuit and protects external circuitry from instantaneous over voltage.

The TDA7479AD can be used to detect AM, PM, or FM signals and determine their modulation levels. It is also capable of precise frequency measurements and is suitable for a wide range of applications such as broadcast television, radio data systems, telemetry and radar systems. Further, the TDA7479AD includes a group of gain and threshold setting circuits that makes it suitable for applications that require a wide range of detection levels.

The TDA7479AD performs two primary functions. First, it is equipped with a single-ended input amplifier, which provides an amplification of the input signals and increases the level of the signals. Secondly, it contains a low-noise amplifier for detecting the frequency of the modulated signal, which it then demodulates into its respective amplitude and frequency components. This process is carried out by two separate circuits, one for detecting the amplitude signals, and the other for detecting the frequency signals.

The TDA7479AD also includes a frequency filter circuit that filters out unwanted noise from the signal. This filter ensures that only signals of the correct frequencies pass through, resulting in clearer and more accurate demodulation results. Additionally, the TDA7479AD includes an adjustable filter function, allowing users to set their desired frequency band for demodulation.

The TDA7479AD supports a wide input voltage range from 1.2 V to 3.0 V, and is capable of powering the device without any external components. It also includes a thermal protection circuit to protect against excessive temperatures, which can reduce the operational lifetime of the device.

In conclusion, the TDA7479AD is a top-notch RF demodulator. Its broad voltage range, adjustable filter, and power-on reset circuit makes it an ideal choice for both commercial and industrial applications. Its low power consumption, comprehensive safety features, and ability to accurately detect AM, PM, or FM signals make it one of the best RF demodulation solutions available in the market today.

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