Advanced Qualification · A-002 Advanced components and circuits · A-002-011-002
What factor determines the bandwidth and response shape of a crystal lattice filter?
- AThe relative frequencies of the individual crystals
- BThe centre frequency chosen for the filter
- CThe gain of the RF stage following the filter
- DThe amplitude of the signals passing through the filter
Correct answer: A — The relative frequencies of the individual crystals. From the official ISED question bank, verified word for word.
Why
A crystal lattice filter uses several crystals wired together, and the spacing between their individual resonant frequencies directly shapes how wide the passband is and how the signal rolls off at the edges. The full explanation — and one for every question — is in Pro.
Practise this section
Advanced components and circuits is section A-002 of the Advanced exam: Advanced components and circuits: semiconductors, amplifier classes, oscillators, mixers, filters and digital logic.
Drill A-002 — free, no account