01 What made me curious about passive probes It all started with a question: can a 1X passive probe be used to match a 50-ohm or 75-ohm system like a coaxial cable? Experienced individuals would immediately say no, because even a 1X probe has a significant resistor in series. I happened to have a broken … Read more
With the rapid development of electronic technology, communication signal frequencies are increasing, and the quality requirements for signals are becoming more stringent. Is it enough to just choose an expensive oscilloscope to measure these high-speed signals? Not necessarily; if some details are overlooked, even the most expensive oscilloscope may not provide accurate measurements! 1. Bandwidth … Read more
There are many key indicators for measuring the quality of an oscilloscope testing system, and the “Effective Number of Bits (ENOB)” is crucial for understanding the entire measurement system. This article will discuss the effective bits of oscilloscopes, the impact of ENOB on actual signal testing, and provide methods for solving it using EXCEL in … Read more
01SD Card SD Card is the abbreviation for Secure Digital Card, which translates directly to “secure digital card.” It is a proprietary non-volatile storage card format developed by the SD Association for portable devices. Due to its small size, fast data transfer speed, and hot-swappable features, it is widely used in portable devices. The standard … Read more
Watch the Experts Recover Data from an SD Card! Welding Wires Like Performing Surgery
On February 22, 2022, GigaDevice (stock code 603986), a leading semiconductor device supplier, announced that its fully domestically produced 38nm SPI NAND Flash—GD5F series has passed the AEC-Q100 automotive certification. This series includes products GD5F1GQ5/GD5F2GQ5/GD5F4GQ6, covering capacities from 1Gb to 4Gb. All stages from design and development to manufacturing and packaging testing utilize domestic supply … Read more
This article is generated by the “Anran Wuyou” public account AI and is for reference only. For any technical issues of concern, feel free to send a private message for discussion. Gas consultation Tencent Ima shared knowledge base: Anran Wuyou Gas Consultation (deepseekR1 version) Gas consultation Yuanbao mini-program link: Anran Wuyou Gas Consultation (has been … Read more
Power consumption is a critical performance metric in chips, sometimes even determining the success or failure of a chip. As is well known, the recent “Snapdragon Fire Dragon” incident significantly impacted the market share of this chip. For industrial-grade and automotive-grade chips, the impact of power consumption is not very apparent. However, for consumer-grade chips … Read more
Concept of Low Power In the design of embedded systems, low power design is a challenge that many designers must face. This is because embedded systems are widely used in portable and mobile products, which often do not have a constant power supply and rely on batteries for power. Therefore, designers consider every detail to … Read more
Accurate thermal analysis plays a crucial role in the design of many electronic products, particularly in high-end PCB design. The results of thermal analysis often influence the mechanical layer design of the PCB and the product’s enclosure: whether to install heat sinks, cooling fans, etc. If a cooling fan is installed, it often needs to … Read more