Noise issues are four words that every circuit board designer will hear. To solve noise problems, it often takes hours of laboratory testing to identify the culprit, only to find that the noise is caused by improper layout of the switching power supply. Addressing such issues may require designing a new layout, leading to product … Read more
1. Layout should come before routing; no matter how detailed the routing is, if the layout fails, it is all in vain. Life is similar; one must have ideals and long-term plans. 2. If one only seeks comfort in early routing, later detours will lead to dead ends. Life is the same: endure hardships for … Read more
1. Considerations for 433M RF Hardware Design 1. Place matching circuit components close to each other and near the chip; if the matching circuit is too far away, it may lose its matching effect. 2. For a two-layer board, it is recommended that the line width of the matching circuit be 0.5mm, and the copper … Read more
2017.11.15 Wednesday Overcast in Shenzhen Introduction: Clueless, I began learning about hardware circuit design for smartphones and tablets… After entering the robotics industry, I slowly started to get in touch with platforms such as: Android development platform (Youjian based on Samsung Exynos6818 development board), TK1 development platform, Firefly-RK3399 platform, iFLYTEK voice development kit, etc. Names … Read more
To download, please follow our public account and reply with the keyword: RK3399☆ END ☆ Highlights MLCC capacitors, aluminum electrolytic capacitors, inductors, and magnetic beads impedance curves Does your test power supply have issues? The effect of output capacitor’s ESR on DC-DC Experience in tuning loop compensation for DC-DC circuits LMR50410-Q1 EN pin voltage startup … Read more
MIPI (Mobile Industry Processor Interface) is a standard defined for mobile devices such as smartphones, tablets, laptops, and hybrid devices. Its commonly used physical (PHY) layers are MIPI D-PHY and C-PHY. MIPI D-PHY: It is more commonly used for cameras and displays in smartphones due to its flexibility, high speed, low power consumption, and low … 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
This is a professional guide for PCB layout and wiring for the SPI interface, focusing on core challenges such as high-speed clock synchronization, signal group timing matching, and anti-crosstalk: 1. SPI Interface Characteristics and Design Challenges Characteristics Design Impact Full-Duplex Communication MOSI/MISO must be routed independently to avoid coupling interference Synchronous Clock The SCK signal … Read more
In integrated circuit application design, after completing the project schematic design, the next step is to design the PCB layout.PCB design is a crucial step.The quality of the design results directly affects the overall functionality of the design.Therefore, a reasonable and efficient PCB Layout is a critical step in the successful debugging of chip circuit … Read more
The power optimization hardware design for the ESP32 is the cornerstone of achieving ultra-low power systems, requiring meticulous control over power architecture, peripheral circuits, PCB layout, and more. Below are hardware-level optimization solutions validated by engineering: 1. Power Topology Optimization 1. Efficient Power Conversion Solutions Scenario Recommended Solution Static Current Conversion Efficiency Key Models Input … Read more