SN65LVDS108DBTR

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The SN65LVDS108DBTR is a high-performance differential line driver which provides level translation between logic inputs and Low Voltage Differential Signaling (LVDS). This differential driver and receiver structure simplifies EMI/RFI mitigation, doubles serial data rate, and reduces power consumption. Besides, it also has a superior output impedance and minimized reflection noise. This article will talk about its application field as well as its working principle.

Application Field: The SN65LVDS108DBTR mainly works in industrial networks and industrial automation, including communication interface and large data transmission between industrial resistance sensor, motor equipment, and instrument devices. This product is widely used in programmable logic controllers, digital inputs and outputs, industrial PCs, etc., and it is known for its reliable, stable, and non-interrupted operation for a long time. In addition, it can also be used in components such as distributed systems, touch panels, displays, cameras, test equipment and diagnostic systems.

Working Principle: The SN65LVDS108DBTR is a single-channel differential line driver and includes an oscillator section. This device is a level shifting circuit composed of two drivers and two receivers that can communicate across a power supply voltage up to 5V. The active device uses a 0.8V supply voltage and a low-power threshold input level, which can be configured in two main modes, a differential signaling input or a single-ended signaling input. The internal oscillator generates a carrier frequency that is used to encode and decode the data, which is then transmitted over the differential lines.

The driver section consists of two transmission stages: the first stage of the driver consists of four transistors to implementation the current driven output. The second stage of the driver consists of four transistor to provide level shifting and reduce the noise that occurs during transitions. This improves the output signal quality. The receiver section has three transistors to implement the input receivings and two stages to amplify the signal at the beginning and end of the receiver section.

In conclusion, SN65LVDS108DBTR is a small form factor, low-cost, and low-power differential line driver that can be used in multiple applications in the field of industrial networks and industrial automation. It performs level translation of logic inputs to LVDS signals and is composed of a driver section and a receiver section with an internal oscillator used for encoding and decoding the data.

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