The AZT71 is a digitally programmed capacitor specifically designed to tune a crystal or SAW based oscillator to a desired center frequency. The desired capacitance value for production trimming is set by a serial data stream when placed into a programming mode. The AZT71 is designed to be a labor and cost saving device within the oscillator production process. Using EEPROM technology, the capacitance can be re-tuned as needed during the production process by repeating the programming steps thereby increasing production yield.

Recommended for new designs

Block Diagram

  • • 6.6pF to 37.553pF range
  • • 0.063pF step size
  • • Non-volatile EEPROM memory
  • • Reprogrammable
  • • 2.5 – 5.0V analog supply
  • • Extended Temp Range: -40°C to 125°C
  • • Fast production tuning of oscillators
  • • Filter tuning
  • • Capacitive touch displays

Order Numbers

Part NumberPackageDimensionsQuantityMSL RatingLeadframe
AZT71QGR1SON81.5mm x 1.0mm10001NiPdAu
AZT71MGR1MLP62.0mm x 2.0mm10001Sn