E7C09 : What is a crystal lattice filter?
A
A power supply filter made with interlaced quartz crystals
B
An audio filter made with four quartz crystals that resonate at 1 kHz intervals
C
A filter using lattice-shaped quartz crystals for high-Q performance
D
A filter for low-level signals made using quartz crystals
Correct Answer: A filter for low-level signals made using quartz crystals