Shenzhen Changjiang Connector Co., Ltd. is a world-leading professional connector manufacturer with 20 years of experience. Its products mainly include wire-to-board connectors, board-to-board connectors, wire-to-wire connectors, wire harness processing and connector design, mold development and manufacturing. It is compatible with international brand connectors from Europe, the United States, Japan, South Korea and other countries.
Four 3G standards and frequency bands: CDMA2000, WCDMA, TD-SCDMA, WiMAX, 1880MHz-1900MHz and 2010MHz-2025MHz.
The frequencies and bands of 4G are: 1880-1900MHz, 2320-2370MHz, 2575-2635MHz.
5G frequenc...
[size=4]The difference between digital signal processor (DSP), general-purpose microprocessor (MPU) and microcontroller (MCU) is that DSP is oriented to high-performance, repetitive, numerically inten...
[i=s]This post was last edited by fish001 on 2018-12-26 11:05[/i] [size=4]The three-legged inductor can also be called an autotransformer. It is a transformer with only one winding. When used as a ste...
This speed sensor or module is intended to be used in portable devices.When the device moves too fast, such as more than 20cm/s, it will output a voltage signal or other signals that can be recognized...
This simple headphone amplifier circuit can be directly connected to other compact devices such as CD players, walkmans, tuners and recorders. Theoretically, this series of headphone amplifier circ...[Details]
According to Jiwei.com, on April 23, the open standards industry association Khronos Group and VeriSilicon jointly held a technical seminar in Shanghai. Wang Yang, senior vice president of VeriSilico...[Details]
In the lithography machine market, ASML of the Netherlands has been the only dominant company in the past decade, and is the only company that offers EUV lithography machines. Even at a price of 1 bi...[Details]
Many friends who have just come into contact with robots or single-chip microcomputers are often confused by the wide variety of single-chip microcomputers. What are the differences between them? Whic...[Details]
The crankshaft position sensor is also called the engine speed sensor. It is one of the most important sensors in the engine centralized control system. It is used to detect the signals of the piston...[Details]
In recent years, the technology of Class D amplifiers has developed rapidly, and the most common application is in low-power products with each channel less than 50W. In these low-power application...[Details]
Filtering is an important concept in signal processing. Filtering can be divided into classical filtering and modern filtering.
The concept of classical filtering is an engineering concept bas...[Details]
Mobile Industrial Robots (MiR), Denmark’s fastest growing robot manufacturer and global market leader in mobile robots, will showcase its safe, flexible and easy-to-use autonomous mobile robot (AMR) ...[Details]
On February 29, news broke that "Hesai Technology's lidar did not handle leap year timestamps, resulting in a firmware bug. As a result, all cars using Hesai's lidar have no autonomous driving functi...[Details]
IGBT Overview
1.1 Structural characteristics of IGBT
IGBT is a high-power, integrated "Insulated Gate Bipolar Transistor". It is a new type of composite electronic device develope...[Details]
When you first come into contact with FS2410, this test actually doesn’t make much sense. However, in the future, when a product is successfully made, product testing is still a stage that must be pa...[Details]
Real-time processing of LiDAR point clouds, sometimes exceeding 1 million data points per second, requires a high level of computing to accelerate point cloud deep learning algorithms. LiDAR 3D point...[Details]
Qualcomm has been paying more and more attention to its automotive business this year. Following the PC and mobile phone chips, Qualcomm's automotive chips have also been replaced with self-develop...[Details]