BT850-ST

RF Transceiver Modules are essentially radio frequency (RF) communication components that enable an external device to transmit and receive information signals. A BT850-ST is a type of RF Transceiver Module specifically designed for low-power applications. BT850-ST can efficiently perform radio communication between a mobile terminal device and a base station in a variety of wireless networks. This article will explore the applications and underlying principle of the BT850-ST.

Applications

As its name implies, BT850-ST is a specialized transceiver module for low-power applications. It is designed to support a wide range of low-power telecommunication infrastructures, such as the widely used GSM/GPRS (2/2.5/3G) mobile communication systems. In addition, it can be used in wireless local area networks, short-range radio technologies (e.g., Zigbee, Mesh), and even some digital audio broadcasting. With its versatile applications, BT850-ST provides users with opportunities to integrate radio devices into various end systems easily and cost-effectively.

Working Principle

The BT850-ST transceiver module utilizes an RF transmitter and receiver for communication. The transmitter consists of a power amplifier, an oscillator, multiple filters, and a frequency modulator. A single crystal oscillator provides a stable reference for all the radio frequencies generated. The power amplifier increases the signal’s output power to achieve a reliable data transfer. Filters are used to reduce noise in the signal, and the frequency modulator is responsible for frequency hopping for frequency diversity. The receiver contains an antenna, an amplifier, filters, and demodulators. The input signal from the antenna is amplified by a low noise amplifier and then filtered to avoid unwanted frequency noises. The final stage is the demodulation process, which separates the useful signal from the noise and converts it into a digital format that is ready to be used by the receiver.

Conclusion

The BT850-ST is a compact and low-cost transceiver module tailored for low-power applications. It offers a variety of communication protocols for various networks, such as GSM/GPRS, wireless local area networks, short-range radio technologies, and digital audio broadcasting. The RF transmitter and receiver are driven by a single crystal oscillator and delivers reliable data transfer, making it an ideal choice for mobile communication systems. The whole BT850-ST system works via a series of amplifiers, filters, modulators, and demodulators in order to make the transmission and reception of data possible.