SN65LVDS391DG4

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The SN65LVDS391DG4 is an integrated circuit combining a driver, a receiver amplifier, two xOR functions, a differential line receiver and a differential line driver. It acts as an interface between two data buses usually used in buses of different technologies, e.g. between two buses containing TTL devices and an LVDS bus containing LVDS devices such as FPGAs and ASICs. This type of interface is commonly used to transmit data in between different devices in video and communication systems.

Application Field

Applications of the SN65LVDS391DG4 can be found in a variety of fields, including:

• Communication Systems: This type of interface is useful for sending and receiving data in communication systems. It is used for high-speed data transmission of analog and digital signals in radio systems, such as those used in mobile phones and satellite communication.
• Video Systems: The SN65LVDS391DG4 is also used to send video signals between different types of devices, such as digital cameras, TVs, and computers. The LVDS protocol allows it to transmit video signals with a high degree of accuracy and quality.
• Medical and Industrial Systems: This type of interface is also used in medical and industrial systems. It can be used to send and receive high-speed data signals in medical imaging devices, such as MRI and CT scanners, and in industrial automation systems.

Working Principle

The SN65LVDS391DG4 chip is composed of a driver and receiver, which are connected by a differential data line. The driver outputs a differential signal, which consists of two signals of opposite polarity. These two signals are transmitted on the differential data line, which is shielded from noise and other sources of interference. The receiver amplifier then amplifies the differential signal, allowing it to be read by the receiving device.

The differential line driver and receiver also use the LVDS protocol, which is a low-global-voltage differential signaling protocol. This protocol allows for high-speed data transmission with a low level of signal distortion. LVDS signals are typically transmitted at frequency rates between 200 Mbps to 2.7 Gbps, depending on the version of the chip.

The SN65LVDS391DG4 is also capable of performing two XOR functions, which are logic functions used in digital logic circuits. These functions allow the chip to perform a comparison between two sets of data, and to output a data signal based on the comparison results.

The SN65LVDS391DG4 is an integrated circuit that is flexible and versatile, and can be used in a wide range of applications. It is well suited for use in high-speed, low-voltage, and low-distortion data transmissions, making it a useful interface for many applications.

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