High-speed PCB design and routing method to solve signal crosstalk
Adopt shielding measures providing packet ground for high speed signal is an effective way to solve crosstalk problem.
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Analysis of common rule of thumb in PCB
Another version of the "3W" rule states that when using sawtooth wiring for lead length matching, the sawtooth width needs to be at least three times the width of the lead, which minimizes the discontinuity of the lead impedance
Why are the vast majority of PCB board colors green?
Actively promote the "PCB design - manufacturing - PCBA processing (SMT mount)" one-stop service model, with the goal of "creating the best overall value for the project", to eliminate the inconvenience of multi-party communication, fo...
How does PCB design determine the number of PCB layers?
When deciding the number of PCB design layers, the following issues should be taken into account: 1Where will the PCB be used? PCBS are used in various types of simple to complex electronic devices. Therefore, the first thing to figure out is whether the
PCBA processing difference between patch components and plug-in components
The choice of the number of layers also depends on the type of signal they need to transmit, the signal is divided into high frequency, low frequency, ground or power supply, for applications requiring multi-signal processing, you need multi-layer PCB, th
PCBA proofing welding requirements
In order to achieve a good combination of solder and weldment, the welding surface must be kept clean. Even weldables with good weldability may produce harmful oxide film and oil stains on the surface of weldparts due to storage or contamination. The dirt
Analysis of deformation causes caused by PCB board processing
PCB boards are generally stored vertically on shelves during the semi-finished product stage. Incorrect stacking and placement of boards during storage can cause mechanical deformation.
How to prevent sheet copying through PCB design?
The patch pin accurately detects the area of the pad contact pin to avoid affecting the welding 7. Through hole pinAccurately detect the hole size and number of attributes of the through hole pin to avoid the purchase of components cannot be used 8. Press
PCB design from a soldering perspective
For circuit boards with components on both sides, consider that the second reflow soldering will wipe off the components on the soldered side.
How to protect multi-layer PCB edge radiation through PCB design?
First of all, we must optimize the key signal wiring on the PCB to avoid EMI problems, more than the layer change hole, we can punch a ground hole around the key signal hole to provide additional return path for the key signal hole
Ten points for attention on PCB board
The outer frame (clamping edge) of the PCB assembly should adopt a closed-loop design to ensure that the PCB assembly will not be deformed after it is fixed on the fixture.
Reasonable layout of device wiring on PCB
Vertical refers to the component body perpendicular to the circuit board installation, welding, its advantage is to save space, horizontal refers to the component body parallel and close to the circuit board installation, welding, its advantage is that th
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