Several common errors in PCB differential signal design
For PCB engineers, the most important thing is to ensure that the advantages of differential routing can be fully utilized in the actual routing
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How to avoid electromagnetic problems in PCB design
Emc and associated EMI have historically required the eyes of system design engineers, but today board designs and component packages are shrinking and Oems are demanding faster systems.
What's the difference between a PCB board and an integrated circuit?
Circuit is used as a tool for conduction between originals. In the design, large copper surface will be designed as the grounding and power layer. The lines and drawings are made at the same time.
PCB layer number identification skills
hese wires, called wires or wiring, are used to provide circuit connections between the components on the board. Usually the color of PCB board is brown or green, which is the color of solder resistance paint.
PCB board loss increases! What caused it?
The PCB dielectric loss factor increases, the loss becomes larger and larger, the transmission line length is larger, the loss is larger, the copper foil roughness is larger, the loss is larger.
PCB radio frequency circuit four basic characteristics
PCB RF circuit RF interface, small expected signal, large interference signal, interference of adjacent channels four basic characteristics.
Rf circuit PCB design skills
The key of RF circuit PCB design is how to reduce circuit radiation and improve anti-interference ability, but in the actual layout and routing of some problems are in conflict with each other.
How to solve the PCBA welding problem
When PCBA virtual welding occurs, we can solve the PCBA virtual welding from the following points: 1) judging the general fault range according to the fault phenomenon, 2) observing the appearance, focusing on the large components and components with larg
How do you judge the PCB board
How do we judge the quality of PCB board: 1. Distinguish the quality of PCB board by its appearance; 2. From the PCB board itself to judge its quality, 3. How to judge the SMT patch processing quality: 1. A complete, smooth, polished surface; 2. The appro
How to deal with PCBA processing correctly
In the choice of PCBA patch processing manufacturers, electronics factories are very careful, so we should choose from the following points: first, customer experience, second, production qualifications, three, cost, four, service
How to eliminate short circuit fault in PCBA processing
There are six points to evaluate the manufacturability of PCB design:1. DFM review of light board2. Check the consistency between the actual components and the pad3. Generate 3D graphics: heat, whether it is conducive to SMT reflow welding heat absorption
How does PCBA process solder paste printing
Solder paste printing is very important to PCBA in PCBA processing, which directly determines the overall welding effect of PCBA. In the process of PCBA processing, the printing effect of solder paste includes steel mesh, solder paste, printing process, d
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