Digital Electronics Basics and Digital Signal Fundamentals
Before the study, of Digital Electronics, We need to know Analog Signal was represented by a periodic sinusoidal wave.There is nothing any discontinuous point exists, meaning absolutely continuous with respect to time. Now creating a discrete point with same unit time interval on continuous analog Signal, we obtained a Dis-creat signal, hence we obtained Digital Signal.
Since above the image, the Original signal was represented by a continuous random periodic curve.At second stage we obtained the signal in sample form by making discrete points on the original analog signal. Another way, the sample signal is said to be a Discrete signal. At the final stage, we obtained desired Digital Signal by making reconstruct the sample signal.
Preliminary state of the Digital Technology is Analog Technology
Features of Digital Signal of the Digital Electronics:-
- Discrete Waveform
- Two state 0 and 1 where 0 is denoted Low state binary numbers & 1 is denoted High state binary numbers of electrical pulses
- Uses in data communication example computer, internet etc.
What are Digital Devices?
Basic Logic Gates are seven types:- AND, OR, XOR, NOT, NAND, NOR, and XNOR
Flip Flop is a digital circuit has two stable states and it could be used for state information recorder.Hence, Flip Flop is to be said Bi-Stable multivibrator.When circuit’s state can be changed one or more control input then will have one or two outputs.
The counter is to be considered as the digital component device which consists of sequential logic that will go through certain predefined states (counting up or down) based on the application of the input pulses. They are utilized in almost all computers and digital electronics systems.
Registers are data storage devices that are more sophisticated than latches. The register is a binary cells’ group compatible with kept hold binary information. A group of cascaded flip-flops used to store related bits of information is known as a register.
Clock Generator is defined as the circuit which produces the timing signal which is to be used for synchronizing a circuit’s operation.The signal can vary from simple symmetric square wave to more complex arrangement.