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....
According to statistics from Gartner, a leading global information technology research and advisory company, global smartphone sales to end users fell 5.4% in the fourth quarter of 2020. Smartphone s...[Details]
As an important human-computer interaction window for smart cars, HUD is rapidly becoming popular in the terminal market with its more convenient, friendly interaction and cockpit entertainment exp...[Details]
Today, an unofficial root project for Nintendo Switch was launched, allowing users to run Android apps on the game console. With the joint efforts of XDA member bylaws and his partners, users c...[Details]
The DC/DC converter circuits are mainly divided into the following according to their circuit modes:
(1) Non-insulated type -- + Basic (single coil) type
——Capacitive coupled dual coil SE...[Details]
According to Hong Kong media reports, Honor separated from Huawei in November 2020 and began to operate independently. After getting rid of the shackles of the past, its CEO Zhao Ming seems to be ful...[Details]
Preface In the previous two articles, How a Program Runs in the CPU (I) described how instructions and data are executed one by one in the CPU. How a Program Runs in the CPU (II) focused on the PC re...[Details]
Electricity waste in the air compressor loading and unloading air supply control method
2 (1) The speed formula of AC asynchronous motor is:
n=60f(1-s)/p
Where n is the motor...[Details]
Since its listing, Chunxing Precision has suffered losses in 2012 and 2017, but its performance soon recovered. However, 2020 was an exception. Now Chunxing Precision has a long way to go if it wants...[Details]
Medtronic and NVIDIA join forces to build AI platform for medical devices Integrating NVIDIA technology into Medtronic’s real-time AI endoscopy device helps improve patient care and outcomes ...[Details]
1. Introduction
Since the emergence of microcontrollers in the 1970s, they have developed rapidly and been widely used in the past 30 years. With the rapid development of microelectronics tech...[Details]
Recently, Nexperia announced the launch of a new generation of H2 technology, a new 650V GaN (gallium nitride) FET. Key applications include on-board chargers for electric vehicles, high-voltage DC-D...[Details]
LED
driver
...
LED driver ICs for driving white LEDs account for about 50% of the total LED driver market. White LEDs are often used to
provide backlighting for small
...[Details]
1 LED display market overview Full-color LED displays are widely used in outdoor and indoor large-scale advertisements, stage backgrounds and other occasions (mostly synchronous display). With the de...[Details]
The first phase (annual output of 25,000 tons) of the artificial graphite negative electrode material project for lithium-ion batteries with an annual output of 100,000 tons, invested and construct...[Details]
In recent years, China State Grid has been working hard to build a unified strong and intelligent grid with networking and automation , and has clarified the strategy of promoting the development of ...[Details]