AZPB70 Datasheet, PDF (9/15 Pages) Arizona Microtek, Inc – Programmer Board Kit for AZT70/71

Arizona Microtek, Inc.
AZPB70
Programmer Board for AZT70/71
Figure 10 - AZT70 Capacitance Value Mapping
AZT70/71 FUNCTIONAL MODES
The AZT70/71 is designed to be used in 2 functional modes, Programming and Operational.
In the Programming mode, the AZT70/71 is used by the manufacturer to set the capacitance value to control the desired
center frequency of the oscillator. The programming mode uses either the shift registers or EEPROM (detailed later) and
gives the manufacturer access to pins DA, CLK, and PV which allow the AZT70/71 to be programmed with the
(AZPB70) along with the included software (Figure 11).
In the Operational mode, the EEPROM internal to the AZT70/71 has already been programmed with the desired factory
settings. Pins DA, CLK, and PV are to be disconnected, thereby allowing the AZT70/71’s internal pull-downs to place the
pins at ground potential. In the operational mode, only 3 pins are necessary for hookup (Figure 12).
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May 2012, Rev 1.2