MB7789-521

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Ultrasonic receivers, transmitters commonly refer to those transducers that use sound waves having frequency that is higher than the audible limit of human hearing, that is above 20 kilohertz. The primary applications of ultrasonic systems include imaging, communication, and ranging applications.

The MB7789-521 is an ultrasonic receiver, transmitter that uses an ultra-wideband (UWB) of frequency. It can be used for short-range radio-frequency communication. This device is designed for applications where ever robust communication over a short range is required. It is suitable for use in body area networks, industrial control networks, and the automotive domain.

The MB7789-521 utilises a simplified single loop transmit and receive antenna configuration to provide up to 10 meters of communication range with low power consumption. The device uses a redundant carrier frequency approach which eliminates the need for a physical temperature compensation device. It also provides immunity to, and reduces the effect of, interference from other radio transmitters and other sources of interference.

The MB7789-521 is able to provide digital communication links over short distances with data rates of up to 25 Mbps. It is able to achieve this through a scheme referred to as BPSK (Binary Phase-Shift Keying) modulation. BPSK modulation is a digital modulation technique which encodes data by shifting the phase of the transmitted signal. In order to receive data, the device listens to the phase-shifted signal and determines the bit transmitted.

The frequency of the transmitted signal can range from 800 to 1000 MHz, with a peak power output of up to one watt. The RF signal generated by the device is transmitted in the form of a continuous series of high and low pulses, each of which represents a single bit (1 or 0). The receiver of the device amplifies and filters the received signal to separate the high and low pulses, which it then interprets to determine the transmitted bits.

The MB7789-521 also has a wide range of features that can be used when deploying it for different applications. These include the ability to select the transmission frequency, select the transmit power, turn on and off the RF output, perform RSSI (Receivable Signal Strength Indicator) measurements, and provide remote diagnostics.

To summarise, the MB7789-521 is an ultrasonic receiver, transmitter designed for short-range radio-frequency communication applications. It uses a simplified single loop antenna configuration, and utilises BPSK modulation to enable data transmission and reception at data rates of up to 25 Mbps. The device features a wide range of features that can be used to customise it for different applications. These features include the ability to select the transmission frequency, transmit power, turn on and off the RF output, perform RSSI measurements, and provide remote diagnostics.

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