"The temperature coefficient of a y-cut...

🔍 Key Concepts

• Temperature coefficient in electronics (what does a positive vs negative coefficient mean?) • How temperature changes usually affect frequency of oscillators or crystals • Relationship between increase/decrease in temperature and increase/decrease in a parameter when the coefficient is positive

💭 Think About

• If a parameter has a positive temperature coefficient, what happens to that parameter when temperature goes up? • In this question, the parameter affected is operating frequency. With a positive coefficient, does the frequency rise or fall as temperature rises? • Once you decide what happens when temperature increases, what must be true about what happens when temperature decreases?

✅ Before You Answer

• Be clear on the definition: a positive temperature coefficient means the parameter and temperature move in the same direction • Match that definition specifically to operating frequency, not voltage or resistance • Check each option carefully: eliminate any option that claims the frequency and temperature move in opposite directions for a positive coefficient

"The temperature coefficient of a y-cut crystal is positive" means:

The operating frequency of the crystal will decrease as the temperature decreases

The operating frequency of the crystal will increase as the temperature increases

The operating frequency of the crystal will decrease as the temperature increases

A & B

🔍 Key Concepts

💭 Think About

✅ Before You Answer