What are the principal advantages of crystal control over tuned circuit oscillators (or filters)? Explain the operation of a ceramic filter. What is the signifi cance of a filter’s shape factor? Defi...

What are the principal advantages of crystal control over tuned circuit oscillators (or filters)? Explain the operation of a ceramic filter. What is the signifi cance of a filter’s shape factor?

Defi ne shape factor . Explain its use. A bandpass filter has a 3-dB ripple amplitude. Explain this specifi cation. Explain the operation and use of mechanical filters.