BA3835F-E2

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Active filters are used to shape or limit the frequency range of a signal, and one of the most common active filter types, the multiple feedback (MFB) active filter, is used in a wide range of applications. The BA3835F-E2, for example, is a MFB digital power amplifier active filter, designed for use in audio systems, digital TV systems and motion control systems.In this article, we look at the BA3835F-E2\'s application field and working principle as a MFB active filter.

Application Field

The BA3835F-E2 is a digital power amplifier active filter, designed for high audio fidelity. It is used in systems such as digital TV systems and motion control systems, and is known for its low distortion, high-fidelity audio performance. It is also used in audio systems such as amplifiers and preamplifiers, amplifiers for monitors, testing instruments, and other audio product applications.The BA3835F-E2 is also used in low noise applications because of its low distortion, low noise, and low crossover distortion characteristics. It has a wide gain range from +20dB to -20dB and a gain accuracy of ±0.5dB.

Working Principle

The BA3835F-E2 is an MFB active filter. This type of filter is designed to allow a signal to enter, be amplified and attenuated, and pass through the filter in order to achieve a desired frequency response. The filter is tuned to accept frequencies within a wide range, and also reject frequencies that are out of its range.The BA3835F-E2 uses two separate op-amps, one to amplify and one to attenuate the signal. The amplifier circuit has a high level of gain, while the attenuator reduces the signal level. When these two circuits are combined, they create an adjustable attenuation level.The filter is tuned by adjusting the feedback resistor on the amplifier and the attenuator, as well as the gain of the amplifier. The gain of the amplifier is adjustable over a wide range, and the filter can be tuned to specific frequency ranges as desired.The BA3835F-E2 includes protections such as thermal shutdown, UVLO, and over-current protection, which help to ensure the amplifier is always working properly.

Conclusion

The BA3835F-E2 is a multiple feedback active filter designed for audio systems, digital TV systems, and motion control systems. It is an active filter that allows signals to enter, be amplified and attenuated, and pass through in order to achieve a desired frequency response. The filter is tuned to a specific frequency range by adjusting the gains of the amplifier and attenuator, and is protected by several safety features.

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