In the previous article where Little Lion discussed the selection of external sound cards, some friends in the comments mentioned that many DAC headphone amplifiers are actually excellent external sound cards that work perfectly with computers for audio playback. This headphone amplifier is commonly referred to as such; however, it should more accurately be called … Read more
What is a DAC? DAC stands for digital-to-analog converter. It is one of the audio devices that takes digital signals as input and outputs analog signals. Nowadays, many popular audio devices produce digital signals, such as smartphones, laptops, and many A/V receivers. The problem is that many audio devices that allow us to hear these … Read more
CCTC® Click the blue text above to follow Brief Overview: Direct Air Capture (DAC) Technology Introduction Source: Gas Exchange “Huaxia Climate welcomes business/ manuscripts/ advertising cooperation Direct Air Capture (DAC) is a carbon reduction technology that involves pulling air from the atmosphere and using chemical reactions to separate carbon dioxide gas. The captured carbon dioxide … Read more
The purpose of this article is to introduce the theory and knowledge related to high-speed ADCs, detailing sampling theory, data sheet specifications, ADC selection criteria and evaluation methods, clock jitter, and other general system-level considerations. Additionally, some users hope to further enhance the performance of ADCs through techniques such as interleaving, averaging, or dithering. 1. … Read more
Click the above “Easily Learn Electronics” to follow us and easily learn electronic knowledge. Easily Learn Electronics Subscription Daily updates on technical articles in the electronics industry and the latest information on microcontrollers, making it easy to learn anytime, anywhere. The Inter-Integrated Circuit (I2C) bus is a synchronous serial data communication bus, where communication is … Read more
When it comes to microcontrollers (MCUs), the first thing that comes to mind is that they have many input/output (I/O) ports, which can be difficult to distinguish. As the core of embedded systems, they can communicate with external devices or sensors. However, the presence of I/O ports often makes learning challenging for many people. This … Read more
1. Introduction In electronic circuit design, there might be a situation where the microcontroller has no DAC resources and no spare PWM ports available. The only remaining option is a UART. So how can we output an analog voltage through this port? By using the microcontroller’s port, we can output a square wave signal with … Read more
The STM32F103VCT6 features two 12-bit DACs. The conversion speed of the DAC has not been confirmed, but some online sources suggest a frequency of 1MHz, which means 1us. The ADC conversion time at a working frequency of 56MHz is 1us, and at 72MHz it is 1.17us. If there is a symmetrical relationship between AD and … Read more
01 STM32F373 Signal Acquisition and Control 1. Introduction Due to the need to update a circuit board designed based on an old controller chip, this morning we will use the STM32F373 microcontroller to design a signal acquisition and control circuit board. First, we will design and produce it, and then proceed to software debugging. AD\XQWF\2024\CLDesign\Ver2\CLMainF373.PcbDoc … Read more
Introduction Uh, why am I writing this tutorial~I don’t know either!Ah, too much to say brings tears, it’s hard, so competitive~ The following content is my personal understanding, and there may be errors in the explanations of technical terms, so I hope the readers will point them out, thank you very much! Basic Concepts Returning … Read more