HLC Huillong| Manufacturer of High-Precision Quartz Crystal Components In the era of the Internet of Things (IoT), billions of devices require seamless communication and collaboration. The foundation of all this is the precise clock signals provided by small crystal oscillators—they act as the “heartbeat” of the IoT world, providing accurate time references for data exchange … Read more
1. Problem Description A certain dashcam requires an external adapter for testing. During power-on testing, it was found to exceed standards, specifically at frequencies of 84MHz, 144MHz, and 168MHz. The cause of the excessive radiation needs to be analyzed, and corresponding countermeasures should be provided. The radiation test data is as follows:2. Analysis of Radiation … Read more
Click the image above “Chuangxue Electronics” to easily follow and learn electronic knowledge. Chuangxue Electronics Subscription Account Daily updates on technical articles in the electronics industry and the latest news on microcontrollers, allowing you to learn easily anytime, anywhere. This experience note was originally intended to be shared while writing my reflections on the Shanda … Read more
Among all device characteristics, noise can be a particularly challenging and difficult design topic.This article mainly discusses the impact of clock noise on high-speed DAC phase noise. Sources of DAC Phase Noise For high-speed DACs, phase noise primarily comes from the following aspects: clock noise, power supply noise, as well as internal noise and interface … Read more
Before we begin: 1. This article will focus on Microchip’s products. I believe Microchip has the most articles on clocks among MCU companies. The terminology used by Microchip may differ from that of other companies, but the usage is the same and does not affect understanding. 2. The term “clock source” is used to distinguish … Read more
Power Supply: If the microcontroller is having issues, first check the power supply. There may be a problem with the power supply. Use a multimeter to check the power supply voltage of the microcontroller; it is best to use an oscilloscope to capture the voltage waveform because the voltage may be unstable (for example, voltage … Read more
In embedded system design, electronic engineers need to focus on multiple core elements to ensure the system’s stability, performance, and reliability. This article will delve into these elements and summarize them, hoping to help our friends. 1. Power Management Power is the cornerstone of embedded systems, and its stability is crucial. Engineers must pay attention … Read more
1. What is a Clock Signal The clock signal (Clock Signal) is the foundation of sequential logic, used to determine when the states in logic units are updated. It is a signal with a fixed period that is independent of operation. The clock signal has a fixed clock frequency, which is the reciprocal of the … Read more
NEWS Click the blue words to follow us HangJing The core component responsible for digital-to-analog conversion in acoustic playback systems is the DAC chip. Since the 1970s, single-chip integrated circuit (IC) DACs have marked the beginning of the DAC chip era. Mainstream DAC Chips 1 AKM AKM is a Japanese chip manufacturer (Asahi Kasei Microdevices … Read more
1、Passive Crystals——Passive crystals require an oscillator within the DSP chip, with recommended connection methods provided in the datasheet. Passive crystals do not have voltage issues; the signal level is variable, meaning it is determined by the oscillation circuit. The same crystal can be used for various voltage requirements, making it suitable for DSPs with different … Read more