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Recently, many mobile phones using 4nm process chips have been complained by users for problems such as high heat generation and high power consumption. It is understood that the three top mobile pho...[Details]
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Radio engineering applications require not only the measurement of harmonics in RF signals, but sometimes the determination of the total harmonic distortion (THD) of audio signals. RF signals may be ...[Details]
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LED (light-emitting diode), also known as LED small lamp, has many types and different parameters. The ordinary SMD light-emitting diode is used on our board. The forward voltage of this diode is usu...[Details]
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If the PWM output of the STM series microcontroller is turned off, for example, by using TIM1_CtrlPWMOutputs to stop the output, the level is in an uncertain state. It depends on: 1. Characteristics ...[Details]
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Ultra-wideband, commonly referred to as UWB, is a powerful wireless communication technology that has a wide range of uses and can perform a variety of tasks that are difficul...[Details]
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As a new type of test and measurement instrument for measuring network parameters, the network analyzer directly measures the complex scattering parameters of active or passive, reversible or irrever...[Details]
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Puyuan Precision Technology Co., Ltd. was established in 1998. It is one of the earliest domestic oscilloscopes. In 21 years, RIGOL has been adhering to the spirit of craftsmanship. The products desi...[Details]
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In signal transmission, BCH code is widely used in microcomputer-level communication due to its unique advantages. However, due to its complex algorithm, it is usually only used in dynamic and real...[Details]
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Introduction The instrumentation amplifier has the characteristics of high input impedance and large common-mode rejection ratio, so it has been widely used. However, due to the complexity of circuit...[Details]
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Tesla's first quarter 2019 financial report was released on the same day as expected. The book data was not very good, and even a little disappointing. Combined with the company's previous inspiring ...[Details]
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The STC89 series of microcontrollers is a new type of microcontroller produced by STC Company. It has the same functions as the AT89 series of microcontrollers, and both use 8051 technology to make t...[Details]
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At present, the chip capacitors widely used in various RF circuits have small size and capacitance, and there is no suitable RF band test instrument. After applying microwave network theory analysis...[Details]
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Rumors that Samsung's Galaxy Note series will be cancelled have been around for a long time, and the Galaxy S21 Ultra's support for the S Pen stylus makes this rumor more credible. If DisplaySe...[Details]
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Reasons for noise in conference audio
(1) Circuit noise inside the device
Audio equipment has an indicator - signal-to-noise ratio. Due to the electrical noise generated by internal elect...[Details]
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GPIO main functions ● Each bit of the port can be configured individually ● Selectable input mode: floating input and input with pull-up ● Selectable output modes: push-pull output and open-drain ...[Details]