ST490ABDR

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Transceiver
Protocol:	RS422, RS485
Number of Drivers/Receivers:	1/1
Duplex:	Full
Receiver Hysteresis:	70mV
Data Rate:	25Mbps
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SO
Base Part Number:	ST490A

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Interface - Drivers, Receivers, Transceivers

ST490ABDR is an application usually used in all kinds of communication systems and interface circuits, like optical modules and PLCs (Programmable logic controllers). It is a transceiver that can support 1-4 channels of data transfer. It also includes a micro-controller that adds more functions to the device.

Application field

ST490ABDR is mainly used in the development of transceiving modules for optical fiber and PLC networks. It can be used to achieve data synchronization in these networks, reliably transfer high speed data, and establish secure communications between devices. Moreover, ST490ABDR can also be used for idle time communication, for example, for network maintenance.The applications are widely seen in modern communication fields, like network/data transmission, storage, I/O control and industrial automation. It provides a simple, low-cost and reliable solution to many communication issues, which makes it a popular choice among industrial engineers.

Working principle

The working principle of ST490ABDR is based on two parts: modulation and demodulation. With the help of modulation and demodulation, ST490ABDR can convert the analog signal into digital data, and it can convert digital data back to analog signal.The modulation process involves converting an analog signal into a digital signal by changing the transmission frequency. This can be done by encoding the analog signal into digital form, and then mapping the new digital form to a new set of frequencies. The frequency of the transmitted digital data can be changed in accordance with the transmission rate, thereby allowing for greater capacity. The demodulation process does the opposite, interpreting the digital signals and converting them into analog form. The microncontroller in the ST490ABDR can control its working process, deciding if the signal is from a receiver or from a transmitter at any given time. It decides the modulation and demodulation process and can even detect errors. The microcontroller can also be programmed to adjust the modulator and demodulator to meet specific needs, such as testing signals and noise reduction.

Conclusion

ST490ABDR is a transceiver device with many applications in communication systems and interface circuits, like optical modules and PLCs. It is mainly used in the development of transceiving modules for optical fiber and PLC networks, and can be used to achieve data synchronization, reliable high speed data transmission and secure communication between devices. Its working principle is based on modulation and demodulation, which are managed by a microcontroller. All these features make ST490ABDR a popular choice for industrial engineers.

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