Author name: 2PCB

Differential signal VS single-ended signal Single-ended signal Single-ended signal is a simple and common way to transmit electrical signals from a transmitter to a receiver. Electrical signals are transmitted through voltage (usually a changing voltage) that is based on a fixed potential, usually a 0V node called “ground”. Differential signal Differential transmission is a signal …

Differential signal VS single-ended signal Do you know the PCB wiring requirements of differential lines? Read More »

On the basis of comprehensive consideration of signal quality, EMC, thermal design, DFM, DFT, structure, safety regulations and other requirements, the components are reasonably placed on the board. ——PCB layout Except for special requirements, all component pad routing must meet thermal design requirements. ——General principles of PCB routing It can be seen that in PCB …

Basic knowledge of PCB layout design (essential): thermal design requirements Read More »

PCB device layout is not a matter of arbitrariness. It has certain rules that everyone needs to follow. In addition to general requirements, some special devices will also have different layout requirements. Layout requirements for crimping devices 1) There shall be no components higher than 3mm around the surface of the bent/male and bent/female crimping …

In PCB design, do you want to know the layout requirements of some special devices? Read More »

As an excellent PCB design engineer, you need to master some necessary design concepts so that you can design a better board. Today, let’s learn about the “three properties” of standard PCB: manufacturability, testability, and reliability. Manufacturability of PCB Design for manufacturability (DFM) takes manufacturability and testability into consideration from the beginning of product development …

The “three properties” of PCB: manufacturability, testability, and reliability Read More »

In PCB silk screen design, it mainly includes: component silk screen, board name, version number, barcode silk screen, mounting hole positioning hole silk screen, board direction mark, anti-static mark, positioning identification point, etc. Today, we mainly learn about the requirements for component silk screen design. General requirements for silk screen design 1) In order to …

Basic knowledge of PCB design: Requirements for component silk screen design Read More »

In PCB wiring, improper layout of ground and power lines will cause interference in the system, resulting in decreased line performance. Only by properly handling the ground and power lines and minimizing the interference noise they generate can the quality of PCB wiring be guaranteed. Ground and power line design rules The design of ground …

PCB ground and power lines, they will affect your wiring quality Read More »

Copper coating is an important part of PCB design. Do you know it? The so-called copper coating is to use the idle space on the PCB as the reference surface and then fill it with solid copper. These copper areas are also called copper filling. The significance of copper coating is to reduce the impedance …

“Pros outweigh cons” or “Cons outweigh pros”? Learn about PCB copper coating in one article Read More »

Wiring is the most important process in the entire PCB design, which will directly affect the performance of the PCB board. When engineers are doing PCB wiring, they must not only follow some principles, but also meet the process requirements of power lines, pads, vias, etc. Process requirements for PCB wiring 1. Line Under normal …

You must understand the process requirements of PCB wiring! Read More »

Currently, high-frequency and high-speed PCB design has become the mainstream, and every PCB Layout engineer should be proficient in it. Next, 2PCB will share with you some design experience of hardware experts in high-frequency and high-speed PCB circuits, hoping to help you. 1. How to avoid high-frequency interference? The basic idea of ​​avoiding high-frequency interference …

[Experience Sharing] Answers to some questions you often encounter in high-frequency and high-speed PCB design Read More »

Whether you are just learning PCB design or have become a PCB Layout engineer, Allegro software is a tool that everyone must master. Next, 2PCB will share some tips on using Allegro software with you, hoping to help you. Unit conversion 1mil = 0.0254 mm 1mm = 39.3701 mil By default, we prefer to use …

Some practical skills of Allegro software are worth collecting by engineers! Read More »