Why can passive filters filter?
The essence of a filter's ability to filter is to select frequencies by causing reflections and losses through the construction of specific impedance characteristics.
F...
The chip resistors on the circuit board are marked with resistance values, but the chip ceramic capacitors do not have any markings.The capacitor installed on the circuit board is suspected to be dama...
[i=s]This post was last edited by Beifang on 2021-9-3 10:55[/i]Read PDM audio signal
1. Introduction to PDM
As shown below, PDM is a serial audio data format parallel to I2S, replacing the traditional...
1. I looked at the examples and found that there is no FFT example. Does this DSP28335 not support FFT? By the way, the C2000 series has the C2000 ware library. It is much more convenient, but I am no...
The standard bell on the bicycle looks ordinary. I bought a small 3V horn online. It is very cheap and easy to use. It only needs to be powered and does not need to be driven.The speaker modification ...