The input waveform in front of C44 is a sine wave of about tens to hundreds of mV. After being amplified by the first op amp, it enters the second op amp U7B, where it is still amplified and then conv
Why when I open the example, which NEXT is grayed out? I opened it before and it was not like this.I found that some of them are grayed out, and some are not.
Why are both the top copper and bottom copper connected to GND in a double-sided board? Can't one layer be connected to GND and the other layer to VCC? ? ?
PCB modular layout ideasIn the face of today's electronic products with increasingly higher hardware platform integration and increasingly complex systems, PCB layout should have a modular mindset, re
Has anyone used Maxim's max30003 to detect ECG signals?
I use nRF52832 to drive max30003 SPI communication is normal, and the verification is correct by reading the values of other registers that have