GFR4B30300

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Part Status:	Active

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Miscellaneous

GFR4B30300 devices are amplifiers that operate very differently from traditional linear amplifiers.This type of amplifier uses an analog to digital processing circuit to receive and output the audio signal.The core consist of digital signal processor, memory-interface, AD/DA, PWM output circuitry and Audio amplifier.The audio signal is digitized and processed through the digital signal processor (DSP) to output a digitized audio signal instead of the traditional analog signal.Through digital signal processing, the sound effects can be enhanced, noise can be reduced, and the high power output capability can be increased.GFR4B30300 applications vary greatly. The most common uses for this type of amplifier are home theaters, stereo systems, sound systems for auditoriums, classrooms, or any application that requires an amplifier to reproduce audio.This device enables system integrators to have control over the output sound. The device also offers two distinct amplification modes; digital and analog. In the analog mode, the device integrates an external analog audio signal and can adjust the input audio via an external potentiometer or neural network. The digital mode allows the users to further process the signal with the Digital Signal Processor (DSP) without an external potentiometer and the system can be tuned more precisely.The working principle of GFR4B30300 amplifiers is based on Digital Signal Processing (DSP). The DSP is an integrated circuit that applies mathematical functions to an audio signal to provide various effects including noise reduction, equalization, compression, excitation and temporal distortion. Through a combination of modified mathematical algorithms, the DSP algorithm is able to manipulate an audio signal and produce desired audio results. In order to achieve an optimal output sound, it is important to have a signal to noise ratio of greater than 60 dB and a high sample rate of at least 48KHz. The Digital Signal Processor (DSP) can then be used to convert the analog signal into digital signal. The DSP can then be used to modify the audio signal by applying frequency filters, altering the phase and amplitude of the signal, and other functions before it is outputted.The power of the GFR4B30300 amplifiers can be increased by using an external power supply and a higher power amplifier. Using an external power supply allows the amplifier to utilize more power than what the internal amplifier can provide. This is especially useful when the users want to increase the volume and achieve a higher power output.GFR4B30300 amplifiers are a great choice for many of applications where noise and distortion must be kept to a minimum. The built-in DSP can be used to improve the audio signal and reduce noise and distortion. The power efficiency of this type of amplifiers also make them energy efficient and suitable for applications that require long periods of operation.

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