SI4761-A50-GMR

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The SI4761-A50-GMR is part of a range of receiver products from Silicon Laboratories that are designed for cellular telephony, radio and broadcast applications. The range is based on the CMOS process, offering highly integrated RF receiver solutions. The SI4761-A50-GMR, is a highly compact quad band RF receiver. It is a single-conversion receiver that provides excellent performance over a wide frequency range from 75 MHz to 1080 MHz.

The principal application of the SI4761-A50-GMR is as a low-power, low-cost RF receiver for cellular telephony, radio and broadcast applications. It can be used in a variety of applications, including pager systems, cordless phones, satellite and terrestrial digital audio broadcasting, and mobile multimedia. It can also be used as a mono-band low-IF receiver for radiotelephone applications.

The SI4761-A50-GMR operates by down-converting an incoming RF signal to a lower frequency, typically at and below 1.1 GHz. It then typically uses a multi-standard decoder to decode the received digital data stream. The multi-standard decoder helps reduce the length of time needed to identify and decode the digital data stream, providing better overall signal performance. After decoding the digital data stream, a digital signal processor (DSP) can be used to further process the received signal.

The SI4761-A50-GMR features an analog-to-digital converter (ADC) that can convert analog RF signals to digital data, which can then be decoded by the multi-standard decoder. The ADC is designed to minimize interference between analog signals and digital decoding, and includes a variable gain amplifier (VGA) and a narrowband filter for improved signal performance. The VGA adjusts the gain of the incoming RF signal, reducing the amount of interference from unwanted signals.

The SI4761-A50-GMR also includes an FM stereo receiver and demodulation circuit for FM broadcast radio reception. The receiver includes an FM de-emphasis filter and phase-locked loop (PLL) to ensure precise FM stereo reception. It is also equipped with a low-IF frequency detector for effective signal reception and a FM stereo decoder for enhanced FM stereo performance.

The SI4761-A50-GMR is a highly integrated RF receiver with excellent performance over a wide frequency range. It is designed for low-power, low-cost applications in cellular telephony, radio and broadcast applications. Its multi-standard decoder helps reduce the time needed to decode digital data streams, providing better overall signal performance, while its ADCs and VGA help ensure optimal analog RF signal reception. Its FM stereo receiver and demodulation circuit offer precise FM stereo reception, while its low-IF frequency detector and FM stereo decoder ensure enhanced FM stereo performance.

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