Q-Eng

With the rapid development of LSI technology, th
e through-hole technology (THT) that flourished
in the 1960s has gradually been replaced by the

The radio frequency circuit is the RF circuit, w
hich refers to the radio frequency current, whic
h is the abbreviation of a high-frequency altern

Summary: As we all know, in winter and summer, a
ir conditioners generally need heating and cooli
ng almost every day, so long-term use will inevi

The clock crystal and associated circuits should
be placed in the center of the PCB and should h
ave a good ground plane, not close to the I/O in

In short: With the improvement of the automation
level of industrial products in recent years, t
he number of printed circuit boards produced in