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What is a multiplexer and a demultiplexer?


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2009-11-11 23:19:44
2009-11-11 23:19:44

A multiplexer takes many inputs and and selectively allow one output.

A demultiiplexer is just the opposite function

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See answer to "What is a multiplexer" as they are reciprocal functions.

A: Multiplexer sends gabs of information on one line the multiplexer decodes what is designed to select from the data

multiplexer combines several individual signals into a single signal.demultiplexer separates a single signal into several individual signals.There are many types of multiplexing, a few are:time domain multiplexingfrequency domain multiplexingdigitally coded multiplexingetc.

45A demultiplexer is the opposite of a multiplexer. In electronic devices, a demultiplexer is a logical circuit which takes a single input and sends out this input to one of several outputs available. During this process the output that has been selected is assigned the value 1, while the other outputs are assigned the value 0. The definition is slightly different when we are talking about demultiplexers in the context of networking. In the networking context, a demultiplexer is a device that receives multiple signals that have been transmitted on one line and then decodes these single line signals into separate multiple signals. A demultiplexer is usually always used in tandem with a multiplexer. Demultiplexers can be analog demultiplexers or digital demultiplexers. Digital demultiplexers generally function as decoders.

A multiplexer, commonly referred as an input selector, is a circuit with many inputs but only one output: it has some data inputs, control inputs and one output, depending on the control inputs, one input from the data inputs is sent to the output .A demultiplexer is a circuit with one data input, few control inputs and many outputs, it is also known as output selector.

A multiplexor is a device that takes two or more signals and encodes them on fewer (often, on one) wire. A demultiplexor is a device that reverse that process.

According to DIGITAL electronics logic connection can be defined as the combination of gates to realised a particular logic function. e.g decoder; multiplexer; demultiplexer etc

synchronization between the multiplexer and demultiplexer is a major issue in data transmission. if the multiplexer and demultiplexer are out of synchronization a bit belonging to one channel may be received by the wrong channel. for dis reason , one or more synchronization bits are usually added to the beginning of each frame. these bits, called framing bit , follow a pattern, frame to frame, that allow the demultiplexer to syncronize with the incoming steam so that it can separate the time slots accurately. in most cases, this syncronization information consists of one bit

opposite of de-multiplexer

A demultiplexer is a circuit. It has one input but more than one output. A demultiplexer gives binary information from one end to another. It is used to connect a single source to many destinations.

Statistical multiplexer does not reserve time slots or frequencies. Instead, it dynamically allocates bandwidth only when it is needed.

An electronics multiplexer will select an output by a digital code. a mechanical multiplexer will select an out by a mechanical switch of sort possibly driven by a motor

Personally describing VHDL code for multiplexer can be quite difficult without prior knowledge. It takes many VHDLs to be a multiplexer.

It is the enable line. Used to enable the multiplexer to function. For low enable multiplexers, strobe is set to 0 to enable the multiplexer whereas in high enable multiplexers, it is set 1 to enable the multiplexer.

Physically a multiplexer usually looks like a box of some sort. More important is what is inside. The inside of a multiplexer contains a switch or switches, a power supply, and the electronic circuits to manage the system. One link is to informative datasheets for a couple of multiplexer Integrated Circuits from which much can be learned about multiplexer characteristics. There are many, many more kinds of multiplexer ICs.

A demultiplexer is an electronic device that separates a multiplex signal into its component parts. It is used when a circuit wishes to send a signal to one of many devices.

A multiplexer is used to combine multiple data streams into a single data stream.

Multiplexing is a method that allows multiple signals or data streams to be combined on a single signal. The multiplexer memory, therefore, is the ability for the multiplexer to remember the data as it was supposed to be, and where it was needing to go.

It's vantage, not disadvantage isn't it?

Multiplexer is an electronic term. A multiplexer combines input from several sources into one. Individuals familiar with electronic devices, how they work and how to configure them will know which multiplexer to use for which device and under what circumstances.

The concept of multiplexing is that we have 2n inputs but only one of them becomes the output for a given condition (or time). That particular input is selected by the combination of n selection lines.

Demultiplexing, or separating several previously multiplexed signals.

used in telecommunication

Which has more number of input, It can be obtained by cascading two or more multiplexer with less nunber of inputs.

Theoretically you use five 4-to-1 multiplexers. You use four of them to connect the 16 inputs. You then have four outputs. Take the fifth multiplexer and connect the four outputs as the inputs. The fifth multiplexer then has a single output that has multiplexed the original 16 inputs.

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