SI4730-B20-GM

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The SI4730-B20-GM is a highly integrated RF receiver from Silicon Lab. This switchable digital processor is tuned to local broadcast FM (87.5MHz to 108MHz) and simplifies a wide range of receiver applications for the consumer electronics market. The SI4730-B20-GM offers a high degree of configurability and performance, making it the ideal solution for a range of RF receivers.

The SI4730-B20-GM optimizes broadcast reception with features like fast-searching tuner, digital signal processing, digital no-click tuning, and digital monitoring. Its configurable, low power consumption, and integrated analog and low-IF digital signal processing make it ideal for applications ranging from home der radios to automotive audio receivers. The SI4730-B20-GM integrates an AM/FM antenna, low noise amplifier, switch mode power supply, and digital signal processing to greatly simplify radio design.

The SI4730-B20-GM is based on the flexible and configurable Si47xx family of digital signal processors, and offers an on-chip DSP without requiring external controllers or extra memory. It features very low power consumption (3.15mA in active operation) without compromising reception performance, allowing it to be used in battery-operated applications. The integrated AM/FM antenna and low noise amplifier are also designed to minimize noise and significantly improve the signal-to-noise ratio of digital signal processor designs.

The SI4730-B20-GM provides an integrated audio blending stage, allowing for increased sound pressure levels and improved signal to noise ratio. It also integrates a dedicated digital audio decoder for AM/FM signal decoding, providing direct analog output of the decoded audio. The receiver is also designed to minimize exchange distortion, such as frequency distortion, noise, and intermodulation. The integrated audio blending stage is also configurable with a variety of features, such as tone restoration, soft mute, and bass/treble enhancements, making it ideal for high-end audio receivers.

The SI4730-B20-GM supports digital level indication, making it easier to find weak signals. It also integrates an FM multipath detection feature, which is designed to improve the detection of weak FM signals and reduce the possibility of incorrect station tuning. There is also a soft mute feature, which helps to reduce noise, and a special demodulation mode, which eliminates background noise during standby mode.

Overall, the SI4730-B20-GM is an ideal solution for high-end RF receivers. Its configurability, low power consumption, and integrated signal processing combine to make it an excellent choice for applications ranging from home radios to automotive audio receivers. With its advanced features such as digital audio decoders and audio blending stages, the SI4730-B20-GM is the ideal solution for any application requiring an efficient and reliable RF receiver.

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