Tag Archives: VFO

DDS VFO

The VFO design is based on the AD9959 DDS which is capable of 20 X clock speed, for a 25MHz clock we can achieve over 200MHz however as I only require the VFO to operate at up to the 2M (144MHz) band 156MHz was suffice so running the clock multiplier at 16 X is enough.… Read More »