The AZPB70 programmer board kit is a PC based assembly that enables prototyping and bench testing of the AZT70 and AZT71 Programmable Capacitive Tuning ICs. It may also be used in production to simplify tuning. The AZT70/71 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. They are designed to be a labor and cost saving devices 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.