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The jitter noise floor indicator of a digital oscilloscope is often misunderstood and misused. So what exactly is the jitter noise floor? The jitter noise floor is the overall noise that the oscillos...[Details]
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HOUSTON, July 13, 2022 /PRNewswire/ -- Ascend Performance Materials' Trinohex® Ultra has become the first and only high-purity 1,3,6-hexane trinitrile to receive China REACH registration, making this...[Details]
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Apple’s iPhone 13 series was officially launched on September 24. Many users have already received and started using the iPhone 13 series phones. Today, some users reported that there were pr...[Details]
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Mo Dakang June 15, 2020 The United States continues to use national power to strangle Huawei and try to hinder its 5G progress. Although this new precision strike will not be implemented until Septem...[Details]
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Engineers usually use multiple groups of cheap small-capacity batteries in parallel to achieve the larger battery capacity required by UPS. If multiple groups of batteries with poor performance uni...[Details]
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If you browse the news about artificial intelligence (AI) on the Internet, you will find that these AIs can already do many things that humans can do, but much better. Today's AI can detect cancer be...[Details]
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In recent years, the need for oxygen permeability measurement and inspection of food and beverage packaging materials and containers has increased rapidly. The main reason is the diversification of pa...[Details]
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Both the switch input and output channels and the analog input and output channels are channels for interference to enter. To cut off this channel, it is necessary to remove the common ground wire be...[Details]
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The continuous improvement of semiconductor design and manufacturing process technology has made the devices on the circuit board run faster and smaller. The power supply system requires more types of...[Details]
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1. Resistance measurement method Remove the laser diode and use a multimeter with R 1k or R 10k to measure its forward and reverse resistance values. Normally, the forward resistance value is between...[Details]
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Information from various sources indicates that Apple will launch a new AirPods by the end of this year, and it has been reported that AirPods 3 will be priced higher than the current model. A recent...[Details]
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The spherical photometer is an efficient and fast device for measuring the luminous flux and luminous efficacy of LED products . It is currently the most important device for measuring the luminous ...[Details]
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Start the assembly file:
#define S3C2440_MPLL_200MHZ ((0x5c 12)|(0x01 4)|(0x02))
#define S3C2440_MPLL_400MHZ ((0x5c 12)|(0x01 4)|(0x01))
#define MEM_CTL_BASE 0x48000000
...[Details]
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On the 24th, Xiaomi released a surround screen concept phone - Xiaomi MIX Alpha. The front, sides and back of the phone are all wrapped in displays. Like folding phones, it is a new type of mobile ph...[Details]
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Automatic excitation control of synchronous generators is an important technical means to ensure safe, stable and efficient operation of generators. This article will introduce in detail the role, ...[Details]
PCB Design
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