SN75114DR

Series:	75000
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Driver
Protocol:	--
Number of Drivers/Receivers:	2/0
Duplex:	--
Data Rate:	--
Voltage - Supply:	4.75 V ~ 5.25 V
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Surface Mount
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	16-SOIC
Base Part Number:	SN75114

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SN75114DR Application Field and Working Principle

Introduction

The SN75114DR is an integrated receiver, driver, and transceiver integrated circuit (IC) from Texas Instruments Inc. It is a low-power, low-cost solution for signal interface applications. Characterized by its small package and low-power consumption, the SN75114DR is ideal for applications such as industrial automation, telecom, navigation, local area network (LAN), security, and medical instruments.

Functionality

The SN75114DR integrates receiver, driver, and transceiver functions in a small package. The receiver section converts a high-speed, full-duplex, STP/UTP cable signal into TTL logic levels with low power consumption. The driver section is designed to generate a high-speed differential output signal level. Low power consumption and fast switching time are maintained due to the built-in receiver and driver. The transceiver section converts the received data into full-duplex, high-speed, dual-rail signaling needed for 100Mb/s Ethernet. The high-speed outputs include an Automatic Polarity Detection Circuit (APDC) to detect the data polarity and an Automatic Frequency Detection Circuit (AFDC) to detect the signal frequency. The input and output levels can also be programmed to ensure compatibility with various interface applications.

Applications

The SN75114DR is suitable for a wide range of applications including industrial automation, telecom, navigation, LAN, security and medical instruments. Its low-power consumption and small package size make it ideal for signal interface and embedded system applications.Industrial Automation: The small package and low power consumption of the SN75114DR make it an ideal solution for signal interface applications in industrial automation systems. It can be used as an interface between sensors and actuators, as well as between industrial automation controllers and signal devices.Telecom: The SN75114DR is capable of high-speed signal conditioning and conversion, making it suitable for telecom applications such as broadband and wireless communication. The low power consumption and small package size make it an ideal solution for signal interface and embedded system applications.Navigation: In navigation applications, the SN75114DR is suitable for signal conditioning and conversion in satellite navigation and maritime navigation systems. It can be used for signal conditioning and conversion between navigation sensors and signal devices.LAN: The high speed, full duplex capabilities of the SN75114DR make it suitable for signal interface applications in local area networks (LANs). It can be used for signal conditioning and conversion between LAN controllers and signal devices.Security: The low-power and small package size of the SN75114DR make it an ideal solution for signal conditioning and conversion in security systems. It can be used for signal conditioning and conversion between surveillance systems and signal devices.Medical Instruments: The high speed output of the SN75114DR make it ideal for signal interface applications in medical instruments. It can be used for signal conditioning and conversion between medical instruments and signal devices.

Working Principle

The SN75114DR is an integrated receiver, driver, and transceiver IC with low power consumption and fast switching time. The device has a three-channel structure, consisting of a receiver (Rx) channel, a driver (Dx) channel, and a transceiver (Tx) channel. The receiver channel consists of a differential input stage, a common mode feedback stage, an automatic gain control logic circuit, and a comparator. The input signal is coupled into the differential input stage, which increases its sensitivity and reduces distortion. The common mode feedback stage reduces the antenna effects of the differential amplifier by providing a loop back of the signal on the common mode line. The automatic gain control logic circuit is used to dynamically adjust the gain of the amplifier to maintain a constant output voltage. The comparator is used to detect the received data and convert it into logic-level signals. The driver channel consists of three high-speed logic circuits and drive circuits. The high-speed logic circuits are used to detect the data and generate an appropriate output level. The drive circuits are used to generate an appropriate logic level output. The output is a differential high-speed signal. The transceiver channel consists of two transmitters, two receivers, a polarity detection circuit, and a frequency detection circuit. The two transmitters are used to generate the dual-rail signals for the differential data transmission. The two receivers are used to detect the data that is transmitted as differential signals. The polarity detection circuit is used to detect the data polarity, and the frequency detection circuit is used to detect the data rate.

Conclusion

The SN75114DR is an integrated receiver, driver, and transceiver designed for a wide range of applications including industrial automation, telecom, navigation, LAN, security, and medical instruments. It features small package size and low-power consumption, and its receiver and driver sections provide a low-power, low-cost solution for signal interface applications. The transceiver section provides full-duplex, high-speed, dual-rail, 100Mb/s Ethernet signaling. The SN75114DR is an ideal solution for embedded systems that require signal conditioning and conversion.

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