DS21349Q+T&R

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Function:	Line Interface Unit (LIU)
Interface:	--
Voltage - Supply:	3.135 V ~ 3.465 V
Current - Supply:	--
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Surface Mount
Package / Case:	28-LCC (J-Lead)
Supplier Device Package:	28-PLCC (11.51x11.51)
Includes:	--
Base Part Number:	DS21349

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Introduction

DS21349Q+T&R (Quad T&R) is a type of interface within the telecom industry. It is designed to provide a high-speed link between two systems, allowing them to communicate and exchange data quickly and efficiently. The interface is composed of four lanes, each carrying a single unidirectional signal, and nine connector pins. In this article, we will explain the application field and working principle of this interface.

Application Field

DS21349Q+T&R can be used in a variety of applications to transfer data between two devices. It can provide a reliable connection for equipment in telecom, military, aerospace and many other industries. This includes transmitting voice, video and data signals over long distances, as well as in high-bandwidth, low-latency applications.In telecom, DS21349Q+T&R is used for connecting devices such as routers, switches, multiplexers and modems. It also supports a number of protocols, including ATM, Ethernet, Elascii and Synchronous Optical Network (SONET). Its ability to handle large amounts of data makes it an ideal solution for applications where high throughput is required.In the military and aerospace industries, the interface is used to connect various subsystems and equipment. It is able to transmit data at high speeds and in a secure manner, making it suitable for mission-critical tasks. Its small size means that it can be easily installed in cramped spaces.

Working Principle

DS21349Q+T&R works by encoding data onto the four lanes and transmitting it through the nine connector pins. Each lane is a single unidirectional signal, meaning the data can only travel in one direction. The nine pins are used for data transmission, power, ground and control signals.The four lanes are configured in a 2x2 pattern, with two adjacent lanes carrying data in opposite directions. The opposing lanes reduce cross-talk, as well as providing redundancy in case one lane is disrupted. This ensures that data is transmitted reliably and error-free.The data is encoded using a four-level pulse amplitude modulation (4T-PAM) scheme. This scheme encodes data onto a series of electrical pulses, which are then sent through the connector pins. A clock signal is also transmitted to synchronize the receiving and transmitting devices.

Conclusion

To sum up, DS21349Q+T&R is an interface designed for high-speed data transmission in telecom, military and aerospace applications. It consists of four unidirectional lanes and nine connector pins, which transmit encoded data using a 4T-PAM scheme. Its ability to handle large amounts of data and its small size make it a reliable and efficient solution for data communication.

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