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DSP, DSC, SoC Processors 101

Friday,Jul 18,2014
It is quite obvious that the world of technology today is already very sophisticated. It is quite obvious how much it has developed from the way it was decades ago. And if we try to enumerate all these developments, it would be impossible to finish it in a hundred pages. So, let us keep it to the topic on systems and processors.
What Are DSP And DSC?
DSP or Digital Signal Processing pertains to the mathematical manipulation of an information signal with the aim of modifying or changing it. A representation of discrete time, discrete frequency, as well as discrete signals by using a sequence of symbols and numbers are what characterize the DSP.
So how does the DSP work? Its aim is to measure and filter real-world analog signals by first converting that analog signal to digital signal by using the Analog-to-Digital Converter (ADC). Though the output of this process is a stream of numbers, the output is still in analog form. This makes it necessary to use a digital-to-analog converter (DAC).
DSP applications are varied and useful for audio and speech signal processing, sensor ray processing, spectral estimation, statistical signal processing, digital image processing, and many more.
DSC, on the other hand, stands for Digital Signal Controller and is considered a hybrid of microcontrollers and digital signal processors or DSP. It is usually programmed through the C programming language and has fast interrupt responses and control-oriented peripherals.
These DSCs need software support to operate properly.
What Are SoC Processors?
SoC stands for System on a Chip or just System on Chip. Being an integrated circuit (IC), it integrates all the elements and components of a computer into a single small chip. Its single chip substrate is comprised of digital, analog, as well as mixed signals and radio frequency functions.
The SoC is much better than a microcontroller in that it can be used for more power processors as it is able to run software like Linux and Windows.
The SoC commonly consists of a microcontroller, microprocessor, memory blocks, timing sources, peripherals, voltage regulators, power management circuits, and analog interfaces.
Several technologies can fabricate SoCs. These include full custom, which specifies the layout of each transistor and the interconnections between them, standard cell, which is an example of design abstraction, and FPGA, which means field-programmable gate array and is configured by a customer after manufacturing.
It may sound like these things are complex and may take a scientist or expert to decode it. However, these very important innovations can really make a difference in the way we do things today.

Tags:DSP,DCS,SoC,Processors

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