What Are Digital Systems?

Digital systems are based on logic gates and microprocessors and are renowned for their speed and reliability. They have revolutionized a variety of industries such as computing, communication and data processing. They are used to design powerful computers, fast communications networks, and digital media devices. Engineers employ HDLs like Verilog or VHDL to create digital systems. They then build them using field-programmable gates arrays (FPGAs) or specific integrated chips for applications.

Digital signals, in contrast to continuous physical processes (binary numbers 0 1, 2, and 3) are represented as discrete values. This allows for greater accuracy in the transmission and processing of information and makes it easier for detection and correction of errors. Digital systems are also less prone to interference and noise than analog systems.

Scalability is a major feature of digital systems. They can be easily adjusted to various requirements and extended as required. This flexibility is crucial for industries that operate under strict safety and compliance standards and is an extremely effective tool for businesses who want to save time and money.

A digital system converts analog signals into digital signals by sampling them at fs times per seconds and then encoding the samples into a bitstream. The number of bits that can be encoded within the bandwidth depends on the modulation scheme and will vary from amplitude and frequency modulation to pulse code modulation. The bit rate can be increased further by using a DAC. This converts the binary stream in an analog output waveform.

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