Classification of IC

(I) Classification of Integrated Circuits by Function Structure According to their different functions and structures, they can be classified into two categories: analog integrated circuits and digital integrated circuits.

Analog integrated circuits are used to generate, amplify, and process a variety of analog signals (signals whose amplitude changes with time), such as audio signals from semiconductor radios, tape signals from video recorders, etc., and digital integrated circuits are used to generate, amplify, and process signals. Various digital signals (refer to discrete signals in time and amplitude; for example, audio signals and video signals for VCD, DVD playback).

Basic analog integrated circuits include operational amplifiers, multipliers, integrated voltage regulators, timers, and signal generators. There are many kinds of digital integrated circuits, and there are many kinds of gate circuits in small-scale integrated circuits, namely, NAND gates, NOT gates, or gates, etc. Intermediate-scale integrated circuits have data selectors, codecs, flip-flops, counters, registers, and so on. Large-scale or ultra-large-scale integrated circuits include PLDs (Programmable Logic Devices) and ASICs (Application Specific Integrated Circuits).

From the perspective of PLD and ASIC, the difference between components, devices, circuits, and systems is no longer very strict. Not only that, the PLD device itself is just a hardware carrier, loading different programs can achieve different circuit functions. Therefore, modern devices are not pure hardware, and software devices and corresponding software electronics have gained more applications in modern electronic design, and their status has become increasingly important.

A wide variety of circuit components, with the continuous improvement of electronic technology and process level, a large number of new devices continue to appear, the same device also has a variety of packaging forms, such as: SMD components in modern electronic products have been everywhere. For different use environments, the same device also has different industrial standards. There are usually three standards for domestic components, namely: civil standards, industrial standards, military standards, different standards, and different prices. The price of military standard devices may be ten times or even more than civil standards. Industry standards fall somewhere in between.

(b) According to the production process classification integrated circuit according to the production process can be divided into semiconductor integrated circuits and thin film integrated circuits.

Membrane integrated circuits are also classified into thick film integrated circuits and thin film integrated circuits.

(III) Classified according to the level of integration The integrated circuits are divided into small and large scale integrated circuits (SSI), medium-scale integrated circuits (MSI), large-scale integrated circuits (LSI), ultra-large-scale integrated circuits (VLSI), and large-scale integrated circuits. Integrated Circuit (ULSI).

(D) According to the different types of conductivity classification Integrated circuits according to the type of conductivity can be divided into bipolar integrated circuits and unipolar integrated circuits.

The manufacturing process of bipolar ICs is complex and consumes large power. Representative ICs are TTL, ECL, HTL, LST-TL, and STTL. The manufacturing process of a unipolar integrated circuit is simple, and the power consumption is also low, and it is easy to make a large-scale integrated circuit. The representative integrated circuits are CMOS, NMOS, PMOS, and the like.

(E) The classification of integrated circuits by purpose can be divided into integrated circuits for television use. Integrated circuits for audio, integrated circuits for video players, integrated circuits for video recorders, integrated circuits for computers (microcomputers), integrated circuits for keyboards, integrated circuits for communications, integrated circuits for cameras, remote-control integrated circuits, integrated circuits for speech, integrated circuits for alarms Circuits and various application-specific integrated circuits.

Integrated circuits for televisions include line, field scan integrated circuits, intermediate-distribution integrated circuits, audio integrated circuits, color decoding integrated circuits, AV/TV conversion integrated circuits, switching power supply integrated circuits, remote-control integrated circuits, Nissan decoding integrated circuits, and drawings In picture processing integrated circuit, microprocessor (CPU) integrated circuit, memory integrated circuit and so on.

Audio integrated circuits include AM/FM high-frequency circuit, stereo decoding circuit, audio preamplifier circuit, audio operational amplifier integrated circuit, audio power amplifier integrated circuit, surround sound processing integrated circuit, level drive integrated circuit, electronic volume control integration Circuits, delayed reverberation ICs, electronic switch ICs, etc.

Video player integrated circuit has system control integrated circuit, video coding integrated circuit, MPEG decoding integrated circuit, audio signal processing integrated circuit, sound effect integrated circuit, RF signal processing integrated circuit, digital signal processing integrated circuit, servo integrated circuit, motor drive Integrated circuits.

Integrated circuits for video recorders include system control integrated circuits, servo integrated circuits, driver integrated circuits, audio processing integrated circuits, and video processing integrated circuits.