Introduction to multiplexer and demultiplexer
- 1. Introduction to Multiplexer and Demultiplexer Name: M.V.S.S.L.R.Krantikiran UIAR No: 11634 B.Tech(Computer Engineering) Semester: 5th Subject: Digital Logics (CS728)
- 2. What is multiplexer? • Multiplexer is a device that has multiple inputs and a single output. • The select lines determine which input is connected to output and also to increase the amount of data that can be sent over a network with certain time. • It is called selector
- 3. Types of Multiplexer • 2-1 Multiplexer • 4-1 Multiplexer (2 select line) • 8-1 Multiplexer (3 select line) • 16-1 Multiplexer(4 select line)
- 4. 4 to 1 Multiplexer
- 5. Applications of Multiplexer • Communication System: 1. A communication system has a great impact by multiplexer. 2. By using a multiplexer, the efficiency can be increased. • Computer Memory: 1. Multiplexer are used in computer memory. 2. Reduces copper lines to connect the memory to other parts of the computer.
- 6. Applications of Multiplexer • Telephone Network: 1. In telephone networks, multiple audio signals are integrated. • Transmission from the computer of a satellite: 1. Multiplexer is used to transmit the data signals. 2. From satellite is ground 3. By using GSM satellite.
- 7. What is demultiplexer? • A demultiplexer (also known as a demux or data distributor) is defined as a circuit that can distribute or deliver multiple outputs from a single input. • A demultiplexer can perform as a single input with many output switches.
- 8. Types of demultiplexer • 1-2 demultiplexer (1 select line) • 1-4 demultiplexer (2 select line) • 1-8 demultiplexer (3 select line) • 1-16 demultiplexer (4 select line)
- 10. Applications of Demultiplexer • Communication System: 1. DE multiplexer receives signal outputs from the multiplexer. 2. At the receiver end it converts them back to the original form. • Arithmetic Logic Unit (ALU): 1. The output of the ALU is fed as an input to the DE multiplexer. 2. And the output of the DE multiplexer is connected to multiple resgister.
- 11. Applications of Demultiplexer • Series to parallel converter: 1. This converter is used to reconstruct parallel data 2. Serial data is given as an input to the DE multiplexer at a regular interval. 3. A counter is attached to detect the data signal.
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