Drones consume a significant amount of energy during flight, especially for small devices. To address this issue, drone PCBA is designed to be more compact, denser, and faster, enabling more functions in a smaller space. Signal Integrity Issues in Drone PCBA From aerial photography to package delivery, drones are changing the way we live and … Read more
In PCB (Printed Circuit Board) design, factors such as signal transmission stability and impedance matching are typically considered. Choosing the appropriate stacking scheme is crucial to meet design requirements. In certain cases, especially when designing six-layer boards, a special design scheme known as ‘pseudo eight-layer’ may be adopted. The ‘pseudo eight-layer’ actually refers to a … Read more
Previously, we discussed various aspects of crosstalk, including its sources, formation, types, simulation, and testing methods. We also introduced some methods to reduce crosstalk, one of which is to protect important signal networks with ground networks. This additional ground network is commonly referred to as a guard trace, as shown in the figure below: Can … Read more
Editor’s Note: The content of this article is quite concise. The first two factors are introduced using ADS simulation schematics, and those interested can follow along. Many buses have requirements for loss, so for design engineers, it is essential to understand which factors dominate the changes in loss. We often discuss the issue of loss … Read more
The star journey of the new generation comedian Qin Xiaoxian from the Deyun Society resembles a crosstalk drama filled with twists and turns. From being exposed by his ex-girlfriend to receiving support from the leader Guo Degang for a comeback, this crosstalk actor, who carries the aura of a “pure boy,” is experiencing the most … Read more
Super-Simple-Tasker (SST) is an event-driven, preemptive, priority-based real-time operating system (RTOS) kernel that fully complies with Rate Monotonic Analysis/Scheduling (RMA/RMS) requirements. Its design aims to help developers easily build efficient and reliable embedded applications. The following sections introduce the core features of SST, its implementation, usage examples, and how to get started. Core Features of … Read more
1. Signal Crosstalk Crosstalk refers to the coupling phenomenon between two signal lines. Due to the close spatial distance, there will be unwanted inductive and capacitive coupling between the signal lines, leading to mutual interference. Capacitive coupling can cause coupling currents, while inductive coupling can cause coupling voltages. This is a tricky issue in circuit … Read more