SI4769-A20-GMR

Current - Receiving:	130mA
Supplier Device Package:	40-QFN (6x6)
Package / Case:	40-VFQFN Exposed Pad
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply:	1.5 V ~ 5 V
Features:	--
Antenna Connector:	PCB, Surface Mount
Memory Size:	--
Data Interface:	PCB, Surface Mount
Series:	--
Applications:	Automotive Audio
Modulation or Protocol:	AM, FM, RDS
Data Rate (Max):	--
Sensitivity:	--
Frequency:	520kHz ~ 1.71MHz, 64MHz ~ 108MHz
Part Status:	Active
Packaging:	Tape & Reel (TR)

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RF Receivers – SI4769-A20-GMR Application Field and Working Principle

The SI4769-A20-GMR is a highly integrated universal Radio Frequency (RF) receiver designed to meet the requirements of today’s automotive, consumer and industrial applications. This device incorporates a complete RF Receiver, Advanced Digital Radio Receive Front-end and a medium power amplifier into a single surface mount package. It also contains the necessary logic and supports the data formats necessary for the efficient display of information to the user and operation in various markets. This product is very suitable for the automotive application field and is unique in terms of its features and design, making it an ideal choice for the development of premium radios for the Automotive market.

Features of SI4769-A20-GMR

The SI4769-A20-GMR contains several features that are essential for its operation in the automotive application field. These features include:• High Sensitivity: This device has a high sensitivity of -109dBm which is essential for the reliable reception of signals in a crowded and noisy RF environment. • Wide Input Frequency Range: This device can receive signals in the frequency range of 9kHz to 198MHz, providing it with the capability to receive a wide array of radio broadcast signals from many different countries.• Automotive Qualified Performance: This device is able to deliver high-fidelity audio output, enabling the radio to reproduce high-quality sound at high volumes. The device is also designed with the capability to operate in temperature ranges typical of automotive environment.• High Power Amplifier Gain: With a class-leading output power of 12W, the SI4769-A20-GMR is able to easily drive multiple speakers while still maintaining its exceptional gain levels.• Low Distortion Audio Output: The integrated low-distortion RC filter reduces harmonic and intermodulation distortion while the advanced signal processing algorithms ensure a smooth, clear and undistorted audio output.

SI4769-A20-GMR Working Principle

The SI4769-A20-GMR receiver has several components which allow it to receive and process radio signals. The main components of the device are the antenna, the RF receiver, the digital radio receive front-end, and the power amplifier. The antenna is responsible for receiving the radio signals. The RF receiver is responsible for converting the analog radio signals into a digital signal. The digital radio receive front-end is responsible for filtering and processing the signal. Finally, the power amplifier is responsible for amplifying the signal to the desired power levels.

Conclusion

The SI4769-A20-GMR is an innovative RF receiver designed for the automotive application field. It is equipped with features which allow it to receive a wide variety of signals within a crowded and noisy RF environment and deliver a high quality output. Its features such as wide input frequency range, automotive-grade performance, high power amplifier gain, and low distortion audio output make it an ideal choice for the development of radios in the automotive industry. Furthermore, its simple working principle further makes it a highly user-friendly product.

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