This is a very professional and important question, involving core considerations of hardware design and electromagnetic compatibility. Let’s break it down clearly. Core Explanation in One Sentence To ensure that the SPI interface does not generate excessive electromagnetic interference (EMI), and thus passes EMC certification, hardware design must set a maximum frequency limit based on … Read more
“In the field of signal integrity, TDR testing and impedance matching are core technologies to ensure the reliability of high-speed circuits, and the two are closely related and indispensable.” 01 Impedance Matching — Reflection Coefficient: As shown in the figure below, when an incident signal is transmitted to a transmission line, it propagates towards the … Read more
In complex PCB design, there is a seemingly inconspicuous yet crucial “small role”—the jumper. It acts like a “bridge” in the circuit, silently connecting various components and solving layout challenges. But did you know? Improper use of jumpers can lead to the collapse of the entire circuit! Today, we will unveil the classifications, functions of … Read more
▼Click the business card below to follow our public account ▼Layout In design, layout is an important step. The quality of the layout directly affects the wiring results, so it can be said that a reasonable layout is the first step to successful PCB design. Especially pre-layout, which is the process of considering the entire … Read more
Printed Circuit Board (PCB) design is a crucial aspect of modern electronic products and serves as the foundation for the development and manufacturing of electronic devices. PCBs are the backbone of electronic products, providing necessary interconnections and support for various components. The PCB design process includes creating layouts to optimize component placement, routing of traces, … Read more
Today, we will share technical knowledge about vias and back drilling in PCBs. 1. Via Design in High-Speed PCBs In high-speed PCB design, multi-layer PCBs are often required, and vias are an important factor in multi-layer PCB design. The vias in a PCB mainly consist of three parts: the hole, the pad area around the … Read more
The biggest challenge in high-speed design is to minimize crosstalk, ensuring good signal integrity during transmission while also reducing the impact of noise on the PCB. Since single-ended signals and Low Voltage Differential Signaling (LVDS) are typical types of high-speed interface signals, it is essential to ensure the transmission of these two types of signals.In … Read more
[Image][Image] Long press to recognize and book online participation [Image] Long press to recognize and book offline gathering. The booking channel for offline and online appointments is about to close, so make an urgent reservation! ****************** The biggest challenge of high-speed design is to minimize crosstalk, ensure good signal integrity during transmission, and also reduce … Read more
If you do not have a probe, your oscilloscope will be incomplete, as the probe is an essential component that connects the device under test to the oscilloscope. The nature and quality of the probe will affect the accuracy of measurement displays and signal analysis. Probes are crucial for signal integrity, so you must choose … Read more
In the production of high multilayer PCBs, the drilling process directly determines the yield and reliability of the product. Industry data shows that the scrap rate of PCBs due to unreasonable hole diameter design can be as high as 30%, with poor hole processing in high multilayer boards accounting for over 45%. This article strictly … Read more