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Impedance design of PCB1. Definition of impedance:At a certain frequency, in the transmission signal line of an electronic device, relative to a certain reference layer, the resistance suffered by the high-frequency signal or electromagnetic wave during p
For small power digital integrated circuit, choose 0.2-0.5mm line width. In the same PCB, the ground and power cables should be wider than the signal cables.
In the design of PCB boards for gigabit devices, a good signal integrity design requires the engineer to consider all aspects of the device, transmission line interconnection scheme, power distribution, and EMC.
Separate the low level analog circuit from the digital circuit to avoid the common impedance coupling between the analog circuit, the digital circuit and the common circuit of the power supply.
Wiring is the most important process in PCB design. This will directly affect the performance of PCB board. In the process of PCB design, wiring generally has such three levels of division: the first is the cloth, the most basic requirements of PCB design
The circuit working at high frequency should consider the interference between components. The general circuit should make parallel arrangement of components as far as possible to facilitate wiring;
As the growth and shrinkage stability of soft plate material is poor, the production of soft plate and pressed PI covering film should be given priority, and the hard plate part should be made according to its growth and shrinkage coefficient.
Width and spacing of printed wire are important design parameters, which affect not only the electrical performance and electromagnetic compatibility of PCB board, but also the manufacturability and reliability of PCB board.
Width and spacing of printed wire are important design parameters, which affect not only the electrical performance and electromagnetic compatibility of PCB, but also the manufacturability and reliability of PCB.
In this paper, the design of PCB Roche coil and integral circuit board will be introduced in detail, the frequency characteristics of the system will be analyzed by PSpice simulation software, and the existing experimental conditions will be used to build
Understand PCB design, PCB assembly and PCB layout in PCB related industries, and Learn the multilayer stack design of PCB
Understand PCB design, PCB assembly and PCB layout in PCB related industries, and The Ground Wire Design of PCB in Electronic Industry