SN65LBC172NG4

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The SN65LBC172NG4 is a member of Texas Instruments Low-Power Quad Differential Line Transceivers family. It is designed to provide a low-power, low-cost and high-performance solution for differential line applications. The device has a wide range of applications and is widely used in a variety of industrial, communication, control and computer applications. This article will discuss the application field and working principle of SN65LBC172NG4.

Application Field of SN65LBC172NG4

The SN65LBC172NG4 is a low-power Quad Differential Line Transceiver. It offers four differential line receivers and four transmitters for balanced line transmission. The device is an ideal solution for EIA/TIA-449 and RS-422 applications, and is also suitable for communication and control systems that use differential signaling. The device is also well suited for data acquisition, measurement, test and control systems, as it can provide protection against interference and reduce power consumption. In addition, the device can be used in other communication applications such as local area networks, radio links and modems.

Working Principle of SN65LBC172NG4

The SN65LBC172NG4 is a four-channel differential line transceiver. It consists of four differential line receivers and four transmitters. The transmitters convert TTL or CMOS levels on a single-ended input to a balanced signal on the differential output. The output has common mode voltage range of GND to VCC, with swing levels of 1.8 V and 0.45 V respectively. The receivers convert the balanced differential input signal to a single-ended output signal, with a logic high level of 1.8 V and a logic low level of 0.45 V.

The device also includes a transmitter enable (E1, E2) and receiver enable (R1, R2) control input. The transmitter enable control logic is the same for all four channels, and the receiver enable control logic is independent for each channel. When the transmitter enable is low, all four transmitters are disabled. Similarly, when a receiver enable is low, the corresponding receiver is disabled. This feature allows the device to be powered down when it is not in use, thus reducing power consumption.

The SN65LBC172NG4 also has an internal protection circuit which reduces the risk of output current flow to the power supply. It also provides built-in noise immunity and reduced line reflections. The device also has a competitive propagation delay, making it ideal for high-speed applications.

Conclusion

The SN65LBC172NG4 is a low-power, low-cost and high-performance Quad Differential Line Transceiver from Texas Instruments. It is suitable for EIA/TIA-449 and RS-422 applications, and is also well suited for communication and control systems that use differential signaling. The device has a wide range of features such as transmitter enable and receiver enable control, internal protection circuitry, built-in noise immunity and reduced line reflections, and a competitive propagation delay for high-speed applications. The SN65LBC172NG4 is a versatile device that is suitable for a variety of industrial, communication, control and computer applications.

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