SN65LVPE501RG Extender Application Field and Working Principle

The SN65LVPE501RG is an extender built by Texas Instruments in the SN65LVPE501 Series. This series are a type of high speed signal transmitters and receivers with extended voltage range and integrated protection circuitry. This extender is an twisted pair low-voltage differential signal (LVDS) application. Its applications field includes notebook computers, cellular phones and other communication equipment.

Overview

The SN65LVPE501RG has two receivers and two transmitters with a serial buffer, which provides support for drivers and receivers to move the signal with no distortion. It works in the point-to-point application and bypasses the ground loop problem. This extender supports up to 1 Gbps data rate (1GHz) over a single twisted pair when using CML signal level. This extender is suited to a variety of applications concerning data, video and audio in a point-to-point connection.

Features

The main features of this extender are its extended voltage range and integrated protection circuitry. These features make its application fields wider, including those with a hot swappable environment, video monitoring system and low-voltage differential signal (LVDS) network.

• Extended Voltage Range: The SN65LVPE501RG has an extended voltage level ranging from 2.3V to 3.8V, making it suitable for low-power applications.
• Integrated Protection Circuitry: This extender also comes with a built-in protection circuit which keeps the devices from short-circuits or over-voltage.
• Data Transmission: It supports up to 1 Gbps data rate (1GHz) over a single twisted pair when using CML signal level.

Working Principle

The SN65LVPE501RG transmits signals between two twisted pair interfaces by using two transmitters and two receivers. It quadruples the amplifier of the differential input signals and then send them to the receiver side through the TTL-style buffer. It can drive up to 100 meters of twisted pair wire without any distortion.

The two receivers on the SN65LVPE501RG are designed to detect and convert the different signals into a 48-bit voltage signal. It then processes the signal a little bit and the twisted-pair signals are regenerated in the receiver input.

The integrated protection circuitry provides protection from over-voltage, short-circuits, and uncontrolled power supply. The protection circuit cuts off the power in case of an over current situation, protecting the device and the system.

Conclusion

The SN65LVPE501RG is among the SN65LVPE501 series of signal transmitters and receivers from Texas Instruments. It has an extended voltage level range from 2.3V to 3.8V, making it suitable for low-power applications. It is also equipped with an integrated protection circuit providing protection from over-voltage, short-circuits, and uncontrolled power supply. This signal extender supports up to 1 Gbps data rate (1GHz). The two receivers on the SN65LVPE501RG are designed to detect and convert the different signals into a 48-bit voltage signal. It is suited for a variety of applications such as data, video and audio transmission in a point-to-point connection.