A demultiplexer is a combinational logic circuit that performs the opposite function as that of a multiplexer. The device has been fabricated in the standard silicon-on-insulator platform. COMPUTER ORGANIZATION -Multiplexer,Demultiplexer, Encoder, Verilog VHDL code Multiplexer and De Multiplexer, No public clipboards found for this slide, Multiplexer and demultiplexer applications.ppsx 3. A common example of a decoder/demultiplexer IC is the 74LS148, which is a Low-Power Schottky TTL device that has 8 input lines and 3 output lines. If you continue browsing the site, you agree to the use of cookies on this website. A demultiplexer function exactly in the reverse of a multiplexer, that is a demultiplexer accepts only one input and gives many outputs. Theory: Multiplexers: A multiplexer is a combinational circuit that selects binary information from one of many input lines and directs it to a single output line. Utilization Outline MULTIPLEXING. The outputs of upper 1x8 De-Multiplexer are Y 15 to Y 8 and the outputs of lower 1x8 DeMultiplexer are Y 7 to Y 0. A typical example of a 3-to-8 line decoder/demultiplexer, the 74138, is shown in Figure 5.11. Generally multiplexer and demultiplexer are used together, because of the communication systems are bi directional. The main difference between a multiplexer and a de-multiplexer is that a multiplexer takes two or more signals and encodes them on a wire, whereas a de-multiplexer does reverse to what the multiplexer does. Now customize the name of a clipboard to store your clips. First, the source wavelengths must lie within the useful gain region of the amplifiers, and they must be stabilized to maintain channel spacing with … Demultiplexer . Now customize the name of a clipboard to store your clips. Multiplexer (data Selectors) It is a combinational circuit which have many data inputs and single output depending on control or select inputs. For N input lines, log n (base2) selection lines, or we can say that for 2 n input lines, n selection lines are required. In this presentation there are slides of application of multiplexer and demultiplexer. A demultiplexer function exactly in the reverse of a multiplexer, that is a demultiplexer accepts only one input and gives many outputs. • If there are n data input lines and m select lines, then 1. Scribd is … The main difference between a multiplexer and a de-multiplexer is that a multiplexer takes two or more signals and encodes them on a wire, whereas a de-multiplexer does reverse to what the multiplexer … The reverse of the digital demultiplexer is the digital multiplexer. At a time only one output line is selected by the select lines and the input is transmitted to the selected output line. If you continue browsing the site, you agree to the use of cookies on this website. Normally, there are 2n input lines See our User Agreement and Privacy Policy. 2. To study demultiplexer. Q.1 What is a multiplexer? The function of the multiplexer is to pick the i/p of any n input lines and feed that to at least one output line. Multiplexer_and_Demultiplexer.ppt - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. In this easier process, Demultiplexer receive the output data of Multiplexer (as a receiver) and covert back them to the original form then. information from several sources to be routed onto a single Clipping is a handy way to collect important slides you want to go back to later. The PowerPoint PPT presentation: "Multiplexers and Demultiplexers" is the property of its rightful owner. Multiplexer Tree • The Multiplexers with more number of inputs can be obtained by cascading two or more multiplexers with less number of inputs. 1 to 4 demultiplexer. • Definition : A multiplexers (MUX) is a device that allows digital PULSE STUFFING/BIT PADDING/BIT STUFFING Sometimes the bit rates of sources are not multiple integers of each other One solution is to make the highest input data ratethe dominant data rate and then add dummy bits to the input lines with lower rates May 21, 2019 31 FRAME SYNCHRONIZING In TDM, synchronization between multiplexer and the demultiplexer is very … Each frame carries 1 byte from each channel; the size of each frame, therefore, is 4 bytes, or 32 bits. 2. We demonstrate an on-chip coherent mode scrambling demultiplexer for polarization multiplexed few mode signals. If so, share your PPT presentation slides online with PowerShow.com. Ans. It has only one input, n outputs, m select input. A demultiplexer performs the reverse operation of a multiplexer i.e. See our Privacy Policy and User Agreement for details. A multiplexer is often used with a complementary demultiplexer on the receiving end. Multiplexer is the device which has n inputs and only one output. See our User Agreement and Privacy Policy. MULTIPLEXER 74157 is a popular Quad 2 to 1 multiplexer that this IC has four 2 to 1 multiplexers all integrated on the same chip. You can change your ad preferences anytime. Three Phase to Three phase Cycloconverter, Fourier Series for Continuous Time & Discrete Time Signals, Initial Conditions of Resistor, Inductor & Capacitor, First order non-linear partial differential equation & its applications, No public clipboards found for this slide. DEMULTIPLEXER Multiplexer IC 74hc157: The multiplexer ICs are common products and are readily available in the market. A demultiplexer is a device, that has one input and multiple output lines which are used to send a signal to one of the various devices. Q – 1 Consider the multiplexer based logic circuit shown in the figure. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Although they appear similar, they certainly perform different functions. Theory: Multiplexers: In electronics, a multiplexer (or mux) is a device that selects one of several analog or digital input signals and forwards the selected input into a single line. W S1 S2 B ) WS1 + WS2 + S1S2 W + S C ) 2 + S2 D ) W + S1 + S2 GATE 2014 EC Marks: 1 A ) These include transmitter source characteristics, optical amplifier performance, multiplexer– demultiplexer requirements, and receiver design. The mode demultiplexer consists of an array of 2D grating couplers for dual polarization few mode fiber-to-chip coupling and optical hybrids realized by 4×4 MMIs. • Several data input lines If you continue browsing the site, you agree to the use of cookies on this website. 2m Looks like you’ve clipped this slide to already. It selects one of the input and passes to the output.There is one more terminal called as select input which decides which input terminal is to be selected to send output. This video discusses how multiplexers and multiplexers work and introduces clock multiplexing. DONE BY SAFIA SAFREEN(15L31A02C5). AND Bandwidth. If you continue browsing the site, you agree to the use of cookies on this website. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Multiplexers and demultiplexers are often confused with one another by students first learning about them. audio, video etc) using single line for transmission. • A multiplexer (MUX) is a circuit that has –Data inputs –Control inputs –An output • The control inputs select which data inputs to be connected to the output • Figure 9.1 ([RothKinney]) show a 2:1 MUX and its model as a switch APPLICATIONS……… Demultiplexers can be used to implement general purpose logic. of input lines) Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. The selection of a particular input line is controlled by a set of selection lines. You can change your ad preferences anytime. In a demux, we have n output lines, one input line, and m select lines. Presentation Summary : Solution The multiplexer is shown in Figure 6.16. Multiplexers are also known as “Data n selector, parallel to serial convertor, many to one circuit, universal logic circuit ”. A multiplexer is a circuit that accept many input but give only one output. it receives one input and distributes it over several outputs. Encoder Design ENC: OR gates used to design encoder. An electronic multiplexer can be considered as a multiple-input, single-output switch, and a demultiplexer as a single-input, multiple-output switch. As the name implies, their functions are opposite to each other (similar to encoder and decoder).These devices are used for sharing a device between two or more applications. If a multiplexer or encoder has N output lines, then it has 2 N input lines. The 74138 with three enable inputs has a flexible enabling system. A demultiplexer performs the reverse operation of a multiplexer i.e. The short form of multiplexer and demultiplexer are Mux and Demux. The function of the demultiplexer is, inverse to the operation of the multiplexer. See our Privacy Policy and User Agreement for details. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. it receives one input and distributes it over several outputs. Do you have PowerPoint slides to share? An encoder is a device, circuit, software program, algorithm or person that converts information from one format or … The following figure shows the pinout and working diagram of the multiplexer IC. Each Frame Carries PPT. To study demultiplexer. MULTIPLEXING Multiplexing is the set of techniques that allows the simultaneous transmission of multiple signals across a single data link. Multiplexer and demultiplexer are two devices very important in data communications. • Some select line (less than the no. Simultaneous transmission of multiple signals across a single data link inputs and one. 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