SI4708-B-GM

Current - Receiving:	16mA
Supplier Device Package:	16-QFN (2.5x2.5)
Package / Case:	16-UFQFN Exposed Pad
Operating Temperature:	-20°C ~ 85°C
Voltage - Supply:	2.7 V ~ 5.5 V
Features:	--
Antenna Connector:	PCB, Surface Mount
Memory Size:	--
Data Interface:	PCB, Surface Mount
Series:	--
Applications:	General Purpose
Modulation or Protocol:	FM
Data Rate (Max):	--
Sensitivity:	--
Frequency:	76MHz ~ 108MHz
Part Status:	Active
Packaging:	Tube

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RF Receivers: SI4708-B-GM Application Field and Working Principle

The development of digital radio technology has enabled the broadcast of digital systems with higher sound quality than conventional analogue broadcasting. To this end, Silicon Labs developed the SI4708-B-GM, a compact, low-power FM receiver module designed to receive digital radio signals and television broadcasts. This article will provide an overview of the SI4708-B-GM’s application field and the operating principle behind its efficiency.

Application Fields

The SI4708-B-GM was designed for use in car automobiles, digital radio sig receivers, TV tuners, and other radio-linked devices. This receiver module is compact, measuring at just 3.9cm x 3.6cm, and can be used for reception in any environment. Additionally, it has a low power requirement of only 1.65v, so it can be easily integrated into any power system.

Mode of Operation

As a digital radio receiver module, the SI4708-B-GM is designed to receive and process radio signals in an efficient manner. Specifically, it employs a Low-IF architecture which sets the local oscillator signal frequency to a level lower than the radio frequency of the input signal. This then enables the receiver module to process the signal with a lower level of noise, and integrate it into the system for further processing.The SI4708-B-GM is designed to be used in conjunction with a companion microcontroller which is programmed to provide the modules with control and settings. This microcontroller can be used to set up operations such as sensitivity, audio output, mute, RDS decoding and more. As a result, the SI4708-B-GM is an extremely flexible modules for digital radio reception.

Other features

The receiver module also boasts a number of other useful features. It is designed to incorporate both AM and FM receivers on two separate frequency bands, allowing for greater flexibility in its operation. Additionally, it can be used in any frequency range from 64 to 108 MHz with a frequency step size of 100KHz. In terms of audio outputs, the module has several options.It includes headphone level output as well as line-level outputs, both with independent volume control. Additionally, the module can also be used to drive loudspeakers of up to 4W.Finally, the SI4708-B-GM is compliant with a wide range of standards, including ETS 300-220, FCC and JEITA approval standards.

Conclusion

The SI4708-B-GM is an efficient and highly flexible FM Receiver module. It has a compact size and low power requirement, making it perfect for use in radio and television receivers and mobile devices. The receiver module also takes advantage of the Low-IF architecture to produce significantly less noise than similar modules. In addition, it offers a variety of audio output options and is compliant with multiple standards. As a result, the SI4708-B-GM is a great choice for radio and TV reception.

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