In the PCB routing rules, there is a principle of “key signal lines first”, that is, key signals such as power, analog signals, high-speed signals, clock signals, differential signals and synchronization signals are routed first. Next, let’s take a closer look at the routing requirements of these key signals. Analog

Layout and routing are the two most important links in PCB design. After engineers complete the layout and routing of PCB in accordance with the requirements of signal quality, DFM, EMC and other rules, they also need to check the relevant content. Layout check In PCB design, reasonable layout is

Decoupling capacitors are capacitors installed at the power supply end of components in the circuit. This capacitor can provide a more stable power supply, and can also reduce the noise of the components coupled to the power supply end, which can indirectly reduce the impact of the noise of other

Decoupling capacitors are capacitors installed at the power supply end of components in the circuit. This capacitor can provide a more stable power supply, and can also reduce the noise coupled to the power supply end of the component, which can indirectly reduce the impact of the noise of this

To learn high-speed PCB design, you must first know what a transmission line is. Signals will reflect because the traces on the PCB have a certain impedance. If the impedance on the line does not match the impedance at the output end, it will cause signal reflection. There will be

Power integrity, referred to as PI, is to confirm whether the voltage and current of the power source and destination meet the requirements. At present, power integrity is still one of the biggest challenges in high-speed PCB design. Power integrity involves the chip level, chip package level, circuit board level

Printed circuit boards (PCBs) are used to carry electronic components and provide circuits to connect the components. From a structural point of view, PCBs are divided into single-sided, double-sided and multi-layer boards. Single-sided Single-sided is the most basic PCB, where the parts are concentrated on one side and the wires

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

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

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

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

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