DSP chip is also called digital signal processor, which is a fast and powerful microprocessor. It adopts special software and hardware structure. The special feature is that it can process data in real time and can be used to quickly implement various digital digital signal processing algorithms.
DSP chips emphasize the real-time nature of digital signal processing. As a digital signal processor, DSP converts analog signals into digital signals for high-speed real-time processing by dedicated processors. It has high-speed, flexible, programmable, low-power interface functions, and plays an increasingly important role in communication fields such as graphics and images, voice, and signal processing.
Before the appearance of DSP chips, digital signal processing can only be completed by microprocessors, but because the processing speed of microprocessors is not fast, it cannot meet the high-speed real-time requirements of increasingly large amounts of information. Then the emergence of DSP chips to meet these needs, the application field has become wider.
Application of DSP Chip
1) The application of DSP chip in the field of multimedia communication.
The amount of information generated by media data transmission is huge. The multimedia network terminal needs to quickly analyze and process the acquired information in the whole process. Therefore, DSP is used in speech coding, image compression and reduction of speech communication. Nowadays, DSP produces real-time effects on speech decoding calculations, and the design protocol requirements have become the most basic international standard.
2) The application of DSP chips in the field of industrial control.
Industrial robots are widely used, and the performance requirements of the robot control system are getting higher and higher. The top priority of the robot control system is real-time performance. When completing an action, it will generate more data and computing processing. High-performance DSP can be used here. After DSP is applied to the control system of the robot, it can make full use of its own real-time computing speed characteristics, so that the robot system can quickly deal with the problem, so that the robot system can be developed more widely.
3) The application of DSP chips in the field of instrumentation.
The rich on-chip resources of DSP can greatly simplify the hardware circuit of the instrument and realize the SOC design of the instrument. The measurement accuracy and speed of the instrument is an important indicator, and the use of DSP chips to develop products can greatly improve these two indicators. For example, TI's TMS320F2810 has a high-efficiency 32-bit CPU core, 12-bit A/D converter, rich on-chip memory and flexible command system, which builds a broad platform for high-precision instruments. High-precision instruments have now developed into an important application of DSP and are in a period of rapid dissemination, which will promote technological innovation in the industry.
3) The application of DSP chips in the field of automobile safety and unmanned driving.
The growing popularity of automotive electronic systems, such as the installation of infrared and millimeter-wave radars, will require DSP for analysis. Nowadays, there are more and more cars, and the anti-collision system has become a research hotspot. Moreover, the image data captured by the camera needs to be processed by the DSP before it can be displayed in the driving system for the driver's reference.
4) The application of DSP chips in the military field.
DSP's low power consumption, small size, and real-time response speed are all particularly required in weapons and equipment. For example, airborne air-to-air missiles are equipped with infrared detectors and corresponding DSP signal processors in a limited volume to complete the automatic locking and tracking of targets. The visual sights equipped on advanced fighter jets and the helmet-mounted low-light instruments carried by infantrymen need to use DSP technology to complete the filtering and enhancement of images, and intelligently search and capture targets. DSP technology is also used in radar digital signal processing such as automatic artillery control, cruise missiles, early warning aircraft, phased array antennas, etc.
At present, there are three main DSP chip manufacturers in the world: Texas Instruments (TI), Analog Devices (ADI) and Motorola (Motorola), of which TI dominates and occupies most of the international market share, ADI and Motorola There is also a certain market.
Texas Instruments (TI) is recognized as the leader in the DSP industry. The company successfully launched its first-generation DSP chip TMS32010 in 1982. Due to the low price, simplicity of use, and powerful functions of the TMS320 series of DSP chips, it has gradually become a leading manufacturer of DSP chips. Currently the most influential and successful DSP series processors.
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