VFO using PIC and DDS for Siltronix 1011D

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VFO using PIC and DDS for Siltronix 1011D

Post  N1LAF on Thu Mar 13, 2014 8:43 am

This is the starting side of a little project that will replace the Siltronix 1011D internal VFO, which is known for drifting, to one that will be controlled by a PIC processor and an Analog Device DDS chip. The Siltronix uses a -12VDC for VFO power, and to make this project universal, a floating ground will be used to accommodate positive or negative voltage supply.

Block diagram and specifications development in progress.
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