MB7489-120

Ultrasonic receivers and transmitters are devices used to detect and produce sound frequencies above the range of human hearing, typically above 20 kHz. The MB7489-120 is a popular ultrasonic receiver and transmitter, designed for applications such as underwater communication, intrusion detection, robotics, and collision avoidance.

The MB7489-120 is a CMOS integrated circuit measuring only 4.5 mm x 4.5 mm, and is capable of detecting ultrasonic signals from as far as 10 m away. It can produce signals up to a frequency of 120 kHz. The device operates on voltages from 2.4 to 5.5 V and comes with an on-board low noise amplifier (LNA).

The working principle of the MB7489-120 is based on its ability to detect signals in the ultrasonic frequency range. It uses a piezo-electric transducer to convert the incoming ultrasonic waves into electrical signals. This transducer is connected to the device’s input port, where the electrical signal is converted into a digital signal. The digital signal is then passed through the low noise amplifier and sent to an output port for further processing.

The MB7489-120 can be used in a wide variety of applications. It has been used in various types of underwater communication systems, such as sonar systems and acoustic modems. It is also used in intrusion detection systems, as it is capable of detecting movements of objects in the ultrasonic frequency range. Furthermore, it has been used in robotics applications, where it is used to detect and prevent collisions by emitting and detecting ultrasonic waves. Finally, it can be used for locating objects, such as locating underwater objects with sonar, or finding lost items with acoustic beacons.

In conclusion, the MB7489-120 is an integrated circuit suitable for a wide range of applications involving the detection and production of ultrasonic signals. It is a small and efficient device capable of detecting and generating signals up to a frequency of 120 kHz. It also comes with an on-board low noise amplifier for improved signal detection. The MB7489-120 has proven to be an effective device for many applications involving the use of ultrasonic frequencies.