SMT SMT processing technology has the advantages of: first, high reliability, strong vibration resistance, second, small size of electronic products, high assembly density, third, high frequency characteristics, reliable performance, four, improve product
When the overshoot is serious, the protection diode will fail prematurely because of its work. Severe downstrokes can cause false clock or data errors (misoperation)
Generally, there are several ways to deal with analog ground and digital ground: 1, directly separate,2, digital ground and analog ground connected with magnetic beads; 3, digital and analog ground with capacitor connection, using the principle of capacit
In the study, it is found that PCB design mainly has four aspects of interference: power supply noise, transmission line interference, coupling and electromagnetic interference
The public power cables and ground cables on the two-sided SMB should be placed near the edge of the SMB and on both sides of the SMB. The power layer and ground cable layer can be installed at the inner layer of the multi-layer SMB, and the cables, power
PCB layout skills: 1, arrange the position of each functional circuit unit according to the circuit flow, so that the layout is convenient for signal flow, and make the signal as far as possible to maintain the same direction, 2, the core components of ea
Common mistakes in PCB design process are summarized as follows: 1. Pad overlap; 2. Non-standard use of graphic layer; 3. Characters unreasonable, 4. Single side pad set aperture, 5. Use filler block to draw pad, 6. The electric stratum is designed with b
Pad can be divided into 7 categories, according to the shape of the distinction is as follows: 1. Square pad,2. Round pad,3. Island pad,4. Teardrop pad,5. Polygon pad,6. Oval pad,7. Open pad
How to cleverly design multiple circuits of the same circuit structure quickly: 1. Design code segments (code segments), 2. Equipment Table, 3. Multi-channel design method (Multi-channel)
What is PCB design: PCB design is based on the schematic diagram of the circuit to achieve the function required by the circuit designer. PCB design mainly refers to layout design, which needs to consider the layout of external connections. Optimized layo
PCB design differential wiring operation skills: 1, activate the wiring instruction, 2, support single line Mode, 3, in the layout of small space position differential wiring, can switch to the Neck Mode, 4, according to the wiring needs to select the app
Copper coating on PCB board, if the grounding problem is handled well, is certainly "more advantages than disadvantages", it can reduce the signal line backflow area, reduce the signal external electromagnetic interference
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