Experimental circuit that can demonstrate the function of cd4067

The author uses the universal experimental board. A circuit demonstrating the function of cd4067 is made. This circuit can also demonstrate the counting process of counter and the generation of counting pulse. The effect is remarkable in classroom teaching and greatly increases students’ interest. Now I would like to recommend the circuit to my peers […]

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Working principle and function design of automatic variable mode control PLL

At present, digital phase locked loop has been widely used in digital communication, radar, radio electronics, instrumentation, high-speed computer and navigation system. Compared with the traditional analog phase-locked loop, the all digital phase-locked loop overcomes the shortcomings of analog phase-locked loop which is easy to be affected by voltage change and temperature drift, so it […]

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Performance comparison and Application Research of common analog-to-digital conversion technologies

Analog to digital conversion is the technology of converting analog input signal into n-bit binary digital output signal. Using digital signal processing can easily realize various advanced adaptive algorithms and complete the functions that can not be realized by analog circuits. Therefore, more and more analog signal processing is being replaced by digital technology. Accordingly, […]

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STM32 timer interrupt and misunderstanding

The timer knowledge of STM32 is quite complex. Here are some basic knowledge. I will write about its various applications in later articles. The general timer is composed of a 16 bit automatic loading counter driven by a programmable prescaler. It is suitable for many occasions, including timing interrupt, measuring the pulse length of input […]

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STM32 timer configuration timing time summary

STM32 timer interrupt time calculation The frequency division value means that you reduce the frequency of the system clock. Suppose the clock frequency is 72mhz, and then the frequency division value is 7199. Now your timer value is 10kHz, which means that each number is counted. After 1 / (10 ^ 4) seconds, then your […]

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Characteristics and application scope of afg1022 function generator

The generator provides a waveform generation tool with the best performance price ratio. It includes dual channels, 25MHz bandwidth and output amplitude up to 10vp-p. Four operation modes, 50 built-in common waveforms and a built-in 200MHz frequency counter meet the needs of most waveforms in the test and test work. 3.95 inch TFTLCD, shortcut button, […]

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