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
Capacitors play a crucial role in high-speed PCB design and are typically the most used components on a PCB. In PCBs, capacitors are generally categorized into filtering capacitors, decoupling capacitors, and energy storage capacitors. 1. Power Output Capacitors, Filtering Capacitors The capacitors in the input and output circuits of the power module are commonly referred … Read more
Designing the Xilinx Zynq-7000 Series 7020 Core Board from Scratch: Introduction For a long time, I have wanted to create a high-speed development board. Due to financial and skill constraints, I had not taken action. To avoid regrets from my student days, I decided to give myself a graduation gift by designing a 6-layer 7020 … Read more
【Click the above「blue text」 to follow the DF Maker Community and become a tech aesthetician together】 This project originates from the Lichuang Open Source Square, based on the ESP32-S3, featuring an onboard 1.69-inch LCD assembly interface, a buzzer, an SD card slot, and AXP173 power management, with dual-row female headers exposing most pins for baseboard … Read more
The key points and best practices for PCB layout design of Arduino open source hardware expansion boards.In the Arduino ecosystem, the PCB design of expansion boards (Shields) requires meticulous planning. This article will delve into the key technical points of PCB layout design for Arduino expansion boards, providing professional guidance for design engineers.1. Stacking Structure … Read more
In the Arduino ecosystem, the PCB design of shields is a professional task that requires comprehensive consideration of multiple factors. This article will detail the key points in the design of Arduino shields from a technical perspective of PCB layout design.1. Physical Dimensions and Mechanical ConstraintsStandard Size SpecificationsThe Arduino shield must strictly adhere to the … Read more
A few years ago, I planned to use a Raspberry Pi to build a small robot, but when I actually started working on it, I found that using someone else’s designed board was not very convenient. On one hand, the Raspberry Pi is designed for a wide range of users, which limits customization; the shape, … Read more
Solder joint processing in printed circuit board assembly (PCBA) is crucial, as the quality of solder joints directly affects the overall performance and reliability of the product. However, during actual production, issues with solder joint failure may arise. How can we reasonably address this problem? 1. Why Do Solder Joints Fail? ① Improper soldering process: … Read more
Breaking News! Breaking News! The electronics technology and craft now have a video channel! Welcome everyone to scan the code to check us out ☞ Only by persisting in learning can we continue to grow! Resistors are quite common in our work, and we should not underestimate these inconspicuous components, as they hold a lot … Read more
Public Account: Mr. High Speed Author: Wang Huidong Longlong, a PCB designer, is working hard and has a beautiful girlfriend named Lily. However, her mother is adamantly against their relationship. Despite this, her daughter is determined not to give up, ignoring her mother’s words, until her mother reluctantly agrees to give Longlong a probation period. … Read more