![]() Data select lines are used in many into one operation of multiplexer and one to many operation of demultiplexer. ![]() Demultiplexer accepts this data and redistributes it to the n outputs. Figure 1: Principle of multiplexing and Demultiplexing The multiplexed data is transmitted over a single line to a common destination. A multiplexers (MUX) is a device that allows digital information from several inputs to be routed onto a single line for transmission as shown in Fig. Principles of Multiplexing and Demultiplexing Let us now begin with principles of multiplexing and demultiplexing. In this module you will learn about the basic architecture of multiplexer and demultiplexers along with real life applications. Multiplexers routes the data from many sources to one destination and demultiplexer redistributes data back from one source to many destinations. ![]() ![]() Multiplexer and demultiplexers are normally used for sharing resources. Our telephone exchanges utilize these multiplexers and demultiplexers extensively. In Smart instrumentation, a PC or microcontroller can acquire data gathered from many sensors through a single ADC. Similarly, in computer networking, many computer needs to access a common printer or other shared hardware. Let us consider our cable TV system, in which multiple TV channels are received at home via a shared transmission media. Introduction There are many applications where many devices or system needs to access a common transmission media.
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