Working on the ad9910 generator again
Received attenuator: Copper foil and mounting:
Received attenuator: Copper foil and mounting:
Start — pretty slow, but who cares?: Current limit engaged — just shorted 🙂 Now quick enough: A little overvoltage after current
Some videos.
https://github.com/enthru/SignalGenerator/tree/AD9851
Frequency response: SFDR: https://github.com/enthru/Arduino-AD9851-DDS-Direct-Digital-synthesizer-Signal-Generator
Small comparison.
It’s based on a copper plate, big old whipped aluminium radiator and two 100Ohm resistors, 800watt each.