Are audio amplifiers, Class A, Class B, Class C, Class AB, Class D, OTL, etc. circuits a type of DAC amplification? What are the similarities and differences with ordinary DAC analog voltage amplifica...
Wide-area wireless network operators are increasingly involved in mobile broadband access and rich multimedia services. These services pose great challenges to wireless networks. Operators need to mak...
1. Flash specificationsThe main chip used in this article is N32L436RBL7, and the flash size is 128k
The flash is divided into 64 pages, numbered 0-63, and each page is 2k.2. Precautions for flash ope...
In the EMC design of RS-485 ports, we need to focus on three factors: electrostatic discharge (ESD), electrical fast transients (EFT) and surge. The International Electrotechnical Commission (IEC) spe...
As shown in Figure 1, the input signal VIN is given by the DSP chip. In Figure 1, R3 and C1 as well as R2 and C3 form a two-order low-pass filter. What is the principle of this filtering? It is easy t...
When I used AD to export gerber today, it prompted "The Film is too small for this PCB"
Because I failed to import DXF files using AD before, I suspect that the DXF has actually been imported, but it ...
After a day of studying the interrupt configuration of stm32, I have a basic understanding of NVIC (to understand NVIC, you can read "Cortex M3 Definitive Guide"). It can be summarized into 3 steps: ...[Details]
This article mainly introduces the bus control of 1602 LCD screen, with AT89S52 as the core, and C programming (there are ready-made reference programs and display effects)
1) Circuit Schematic Diagr...[Details]
0 Introduction
Each oil field has many oil and gas wells, which are distributed in the mountains and wilderness. The management of oil and gas wells is mostly done by daily manual duty, regular insp...[Details]
The well-known camera review website DXOMARK recently launched a new Chinese official website. The new website adopts a new layout, which is more concise and also adds a lot of animations to he...[Details]
Abstract: In order to explore the transient thermal characteristics of lithium-ion batteries for pure electric vehicles during discharge, the internal resistance at different temperatures and the t...[Details]
TMS320F240 (referred to as F240) is a high-speed, highly integrated, low-cost microcontroller with very powerful functions. The fly in the ointment is that although the F240 chip itself integrates ...[Details]
When using active probes for testing, the most common mistake is using the probe beyond its dynamic range. We often receive calls from customers saying that when they use active and passive probes to...[Details]
Hyundai Mobis recently announced the development of the world's first QL display ( quantum dot and local dimming display) for vehicles . QL Display combines “quantum dot” technology with “local dimmi...[Details]
Analysis of electric energy metering circuit: ADE7755 is powered by a single power supply of +5V and 15mV power consumption. After power is applied, the ADE7755 chip is initialized and starts to w...[Details]
Today’s high-efficiency step-down DC/DC converters use synchronous rectification technology to meet the high efficiency requirements of computing applications. The driver and power system must be...[Details]
With the implementation of the three major international 3G standards (TD-SCDMA, WCDMA and CDMA2000) in China, a huge industry chain with operators as the core has been formed. After a period of de...[Details]
Sensors play a vital role in environmental monitoring if we want to build a sustainable future. Rising global energy consumption, energy-intensive manufacturing processes, greenhouse gases from hou...[Details]
Two very desirable characteristics of an accurate measurement system based on an analog-to-digital converter (ADC) are high input impedance and a wide input range. The circuit described in this art...[Details]
There are many types of signal generators, which have different appearances and provide different functions. Figure 1-1. Keysight PXIe vector signal generator and analyzer. Form factor: Do you ne...[Details]
Third quarter net revenue of $3.25 billion; gross margin of 37.8%; operating margin of 11.7%; net profit of $351 million
Net revenue for the first nine months was $9.95 billion; gro...[Details]
Discrete Device
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