29. What is the requirement for phase noise at 1k offset , 10kHz offset, and 100kHzoffset for GSM handset?Answer: For GSM handset RX it has several architectures to implement:Superheterodyne,near zero...
The evaluation has finally come to an end. In order to achieve the goal of uploading indoor temperature, humidity and atmospheric pressure data to the cloud based on the Essence NB-IoT development boa...
When the servo drive system is loaded, the current waveform follows very well, the current is saturated, and the speed waveform oscillates when it starts (there are two waveforms, one from 0 to 2000 r...
Continued from the previous article~~~~~
Continue the decoupling/bypass journey~~~~~~~·
This is Murata's decoupling application manual, which is quite comprehensive, explaining decoupling applications...
Are there any seniors who are familiar with Beidou chips and GPS chips who can recommend some relatively stable, low-power, and low-voltage Beidou chips and GPS chips?...
travis: Add BLE submodules to ESP32 IDF4 build.
esp32/boards: Enable BLE by default when building with IDF 4.x.
esp32: Implement BLE using Nimble from IDF 4.x....
With the development of the global economy and the improvement of people's living standards, cars are increasingly used in daily life, so the requirements for energy conservation, emission reductio...[Details]
Single player has gradually become a favorite of many young friends due to its beautiful playback effect. Especially now with the advancement of technology and the improvement of people's apprecia...[Details]
After the shortage of automotive chips has eased in 2022, the discussion on whether the tight supply of automotive chips has reached an inflection point will be mentioned again in 2023. Since the ...[Details]
Many factors determine the need for low-voltage and low-power operation in patient monitoring equipment, which requires low-power, high-precision IC devices. One factor is the continued use of batter...[Details]
Introduction The car driving recorder is a technological innovation product of the traditional car instrument system, involving many technical fields. Its core concepts and main research contents in...[Details]
Qualcomm achieves important milestone in 5G millimeter wave independent networking in China
— Laying the foundation for accelerating the commercial deployment of millimeter waves —
...[Details]
Today's cars are becoming more and more like computers on wheels, and operating systems are crucial. This trend has attracted major technology companies around the world to join the game, and they...[Details]
SF6 trace moisture tester operation method 1. First, turn on the power and allow the instrument to perform self-calibration (perform ventilation test after 5 minutes). 2. Close the flow regulating va...[Details]
Qualcomm Technologies, Inc. (Qualcomm Technologies) and Alps Alpine Co., Ltd. (Alps Alpine) will jointly develop ViewPose, a vehicle positioning system that uses camera images to achieve lane-level p...[Details]
1. Wide range ratio Since the cone can make the fluid flow field uniform, the flow rate that can be measured is lower than that of ordinary differential pressure flowmeters, that is, the lower limit...[Details]
I spent a long time reading the chapter on task management in uC/OS-II. Since the book at hand often mentions questions about this in the chapter far behind, there is no complete explanation for the ...[Details]
Let's take a look at the ARM storage system:
It can be seen that the fastest are the processor and internal registers, which are few in number and very expensive. Next is TCM tightly cou...[Details]
Electric vehicles (EVs) are essential to achieving a sustainable, energy-efficient future, but one of the limitations of such vehicles is the lack of long-lasting, high-energy-density batteries to re...[Details]
UPS (Uninterruptible Power System), also known as uninterruptible power supply, is a constant voltage and constant frequency uninterruptible power supply with energy storage device and inverter as th...[Details]
On October 12, Xinjiang Company and some tertiary industry companies were invited to attend the investment promotion symposium and signing ceremony held by the Wusu Municipal People's Government an...[Details]
RF/Wirelessly
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