Crystal Filter And LC Filter

Elkay Electromech > Products & Services > Filters > Crystal Filter And LC Filter
Posted by: Web Admin July 15, 2020 No Comments

A crystal filter is an electronic filter that uses quartz crystals for resonators. Quartz crystals are piezoelectric, so their mechanical characteristics can affect electronic circuits.The crystal’s stability and its high Q factor allow crystal filters to have precise center frequencies and steep band-pass characteristics. Typical crystal filter attenuation in the band-pass is approximately 2-3dB. Crystal filters are commonly used in communication devices such as radio receivers. A crystal filter is very often found in the intermediate frequency (IF) stages of high-quality radio receivers.


  • Frequency range from 4 MHz to 270 MHz
  • Bandwidth 0.01…0.25%
  • Low Insertion Loss
  • Flexible Terminating impedances
  • Flat Group delay
  • Low Spurious responses
  • Excellent Temperature Behavior


  • Military & Space Applications
  •  Radio Receiver
  • IF Filtering
  • Wireless & Telecommunication