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Analog output board

To improve the reliability of the electronic system and reduce the cost. The development of modern electronic products largely depends on the development of analog circuits. Then for a mature electronic products for the analog output board is essential. It can communicate directly with people! Like other hardware platforms, the analog output board has the characteristics of low input voltage, high resolution, stable performance, small size, easy to carry, light weight, easy to use and so on.

1, low input voltage, high simulation accuracy.

The input voltage (usually 20 V or less) is lower than the effective current (10 mA or more) of the electronic circuit. Because of the use of high current signal output (especially the use of high voltage), the requirements of digital signal acquisition and processing are higher. It can be said that analog output has more advantages than digital circuit in digital signal processing.

2, the input frequency is low, the sampling rate can reach 8 KHz.

For example, 10 kHz, the sampling rate can reach 30 KHz. At low voltage, the sampling rate can reach 5 Khz-10 KHz. (if it is 12 MHz, the sampling rate is 10 KHz); At high frequency, the sampling rate is 4 KHz, 10 KHz, etc. The analog output circuit communicates directly with the electronic equipment in level: analog signals are converted in the circuit. When a large amount of data needs to be transmitted, the signal is transmitted between levels, which is called "transformation". When "analog" is needed, the signal is transferred between levels, called "encoding".

3, high resolution, with 0.001 nm resolution, to meet the needs of high resolution signal.

At the same time, because in the process of high-speed analog signal output, the level is converted into level voltage, and then the level voltage is converted into level voltage, so the voltage within 1μV is generally required to meet the requirements of communication signals in the communication circuit. Moreover, a semiconductor chip of 0.001 nm class is used to ensure the signal resolution of analog circuit. The signal resolution of other analog circuits is generally 100 nm. This means that the analog output board has a very high resolution, and the resolution is proportional to the desired signal frequency and amplitude. This means that when the analog signal output is carried out by the traditional method, the interference of high frequency noise and other factors will cause the distortion, distortion, dispersion and distortion of the analog signal output, which is not conducive to signal transmission.

4, small size, light weight, can be combined with a variety of devices, and can use a variety of components at the same time.

The analog interface board can connect various analog circuits according to application requirements. With the increasingly complex of computer hardware and software system, all kinds of embedded systems such as embedded computers, embedded phones, digital cameras, electronic commerce and communications equipment, industrial automation equipment and other communication interface to the system reliability and stability of the higher and higher demands are proposed, accordingly to the application of electronic system communication interface with the device communication interface is also put forward higher requirements. We use embedded operating system, for example, because of all sorts of computer hardware design circuit needs to be connected to the embedded system communication, if can't achieve the embedded system for equipment and system communication links to join processing, cannot guarantee the reliability and stability of the system, the embedded equipment has a high requirement for computer communication interface, therefore, Interface design of embedded system is very important. Firstly, according to the design requirements of embedded systems, it is necessary to design a variety of peripheral devices that can support the communication connection of embedded systems. Usually, the choice of high-performance embedded CPU and at the same time also need to consider to the machine under the request of high reliability and high anti-jamming capability is compatibility with other devices, and the machine can complete software program transformation system, in order to ensure the normal operation of the embedded system can process and achieve high performance computing.

5, stable performance, with good reliability.

The analog output board is a computer as the carrier, which integrates the analog electronic circuit and the knowledge structure of computer hardware and software with high precision electronic components. It can realize a variety of functions to meet the various requirements of electronic products. It is widely used in various electronic products, such as computers, mobile phones, radios, video recorders, microwave ovens and so on. It is an indispensable part of the whole computer. Analog electronic modules are used to realize functions, in which the input end directly communicates with people, and the output and input end need to use computer interface protocol (such as PCI) to communicate with the computer.