FCC Question Pool Review

Amateur Extra Class (Element 4) • 2024-2028

Switch License

Question E6C06

From subelement E6 - E6C

E6C06
Answer: C

Why do CMOS digital integrated circuits have high immunity to noise on the input signal or power supply?

ALarge bypass capacitance is inherent
BThe input switching threshold is about twice the power supply voltage
CThe input switching threshold is about half the power supply voltage
DBandwidth is very limited