RFD77201

Series:	Simblee™
Packaging:	Bulk
Part Status:	Obsolete
RF Family/Standard:	Bluetooth
Protocol:	Bluetooth v4.0
Modulation:	--
Frequency:	2.4GHz
Data Rate:	4Mbps
Power - Output:	4dBm
Sensitivity:	-96dBm
Serial Interfaces:	I²C, SPI, UART
Antenna Type:	Integrated, Chip
Utilized IC / Part:	--
Memory Size:	128kB Flash, 24kB RAM
Voltage - Supply:	1.8 V ~ 3.6 V
Current - Receiving:	10mA ~ 13mA
Current - Transmitting:	8mA ~ 12mA
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Package / Case:	Module

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RF Transceiver Modules: RFD77201 Application Field and Working Principle

The RFD77201 transmitter/receiver module is a professional radio frequency (RF) transceiver module designed for applications requiring high-performance radio transmission and reception capabilities. This low cost, low power module is capable of operating at up to 60 dBm of power in the Amateur Radio frequency range. It is ideal for applications that require stable, reliable, and long-range radio communication.The RFD77201 is an SDR transceiver module that combines transmitting and receiving functions in one device. The module is composed of a two-stage low-noise amplifier (LNA), a mixer, a synthesizer, and other circuitry in the transmitter, as well as a low-noise amplifier (LNA), a mixer, a demodulator, a baseband filter, and a data converter in the receiver.The RFD77201 transceivers are designed to work in the following application fields:

• Amateur radio: This type of module is often used for amateur radio shortwave transmissions for two-way communication. It is also suitable for applications involving remote control, data transmission, and telemetry.
• Industrial radio communications: The transceiver module can be used for industrial radio communications, such as mesh network communication for industrial automation systems, and for long-range wireless communication.
• Remote sensing: The transceiver modules can be used for remote sensing devices, such as radio-based soil moisture sensors or radio-based air quality sensors.
• Military applications: The module can be used in military vehicles, for tactical communication, and for other military-related applications.

The working principle of the RFD77201 transceiver module is based on the use of radio frequency (RF) technology. The RFD77201 consists of two stages of signal amplification: the first stage is a low-noise amplifier (LNA) and the second stage is a mixer. The amplifier stage is used to amplify the signal to the required level. This reduces noise and improves system performance. The mixer stage is then used to mix the incoming signal with the desired outgoing signal to create an output signal with the desired frequency.The receiver part of the module consists of a low-noise amplifier (LNA) with adjustable gain, an output filter, and a demodulator. The LNA amplifies the incoming signal before it is passed through the output filter, which removes any unwanted frequencies from the signal. The demodulator then extracts information from the signal, such as digital data or an audio signal. The transmitter part of the module consists of a synthesizer, which is used to generate the outgoing signal. The synthesizer varies the output frequency depending on the desired output frequency and can be used to transmit digital data, as well as audio signals. The signal generated by the synthesizer is then amplified by the amplifier stage and sent out through the antenna. The RFD77201 transceiver module is a low-cost and low-power multi-band transceiver module designed for high-performance radio transmission and reception. It is ideal for applications that require stable, reliable, and long-range radio communication. It is suitable for amateur radio, industrial radio communications, remote sensing, and military applications. The working principle is based on the use of radio frequency (RF) technology for signal amplification, mixing, and demodulation.

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