SN65LBC173AMDREP

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The SN65LBC173AMDREP from Texas Instruments is an integrated circuit which is used as a line transceiver for the Low Voltage Differential Signaling (LVDS) protocol, designed for low power operation. This article will discuss the application field and working principle of the SN65LBC173AMDREP.

Application field of SN65LBC173AMDREP

The SN65LBC173AMDREP is a transceiver designed for high speed data transmission over a single pair of twisted-pair copper wires. The device is suitable for use in both low power and low speed (fast-mode) LVDS links, as well as high speed (slow-mode) LVDS links. It is commonly used in applications such as flat panel displays, storage as well as network applications.

The SN65LBC173AMDREP supports a wide range of data rate, from 4 Mbps to 24 Mbps on slow-mode links, and up to 150 Mbps on fast-mode links. It also has a -3dB bandwidth of 630 MHz, allowing it to be used in applications requiring high transmission rates. In addition, the SN65LBC173AMDREP is designed to run with very low power consumptions, typically about 80 mW.

Working Principle of SN65LBC173AMDREP

The SN65LBC173AMDREP consists of two different circuits: a receiver and a driver. The receiver takes the input signal and converts it back to the original signal, while the driver is responsible for driving the signal to the transmission line. The two circuits are connected through a differential output signal.

The receiver part of the SN65LBC173AMDREP consists of two comparators and non-linear Schmitt triggers, which convert the incoming signal into a differential output. The input signal is connected to the non-inverting and inverting inputs of both comparators, the outputs of which are then connected to the Schmitt triggers. The Schmitt triggers then convert the signal into a differential output, depending on its polarity.

The driver part of the SN65LBC173AMDREP is responsible for sending the input signal to the output line. The driver consists of a differential amplifier, driver transistors, and protection circuits. The differential amplifier is used to convert the input signal into a suitably shaped waveform that can be used to drive the line. The driver transistors and protection circuits are used to ensure that the signal is properly shaped and reaches the output line accurately and with the correct voltage.

The SN65LBC173AMDREP is also capable of operating in either slow mode or fast mode, depending on the application requirements. In slow mode, the device operates with data rates of up to 24 Mbps, while in fast mode it can handle data rates of up to 150 Mbps. The device is able to switch between the two modes depending on the input signal.

Conclusion

The SN65LBC173AMDREP from Texas Instruments is an integrated circuit designed for use in low voltage differential signaling applications. It is commonly used for high speed data transmission over a single pair of twisted-pair copper wires. The device supports data rates ranging from 4 Mbps to 150 Mbps, depending on the application requirements, and is capable of operating in either slow mode or fast mode. The SN65LBC173AMDREP is designed to be used in low power applications and typically consumes only 80 mW.

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