Hello, I found this project on hackaday and wanted to make some alterations to the circuit:
https://hackaday.io/project/10021-arduino-network-analyzer
1st: Use a Teensy board for faster data sampling,
2nd :use an AD9958 DDS ic instead of the AD9851 to give it two channels
These things seem fairly straight forward as an educational project (for my self) into RF circuit design.
And now my probably naive questions:
Is it possible to mix two dds Signals with different frequencies to simultaniously stimulate for instance the fundamental and the third harmonic of a quartz crystal?
And afterwards split those two signals up via a filter network to recieve those resonance frequencies via an logarithmic amplifier?
I hope this question is understandable.
And sorry, English is not my first language
https://hackaday.io/project/10021-arduino-network-analyzer
1st: Use a Teensy board for faster data sampling,
2nd :use an AD9958 DDS ic instead of the AD9851 to give it two channels
These things seem fairly straight forward as an educational project (for my self) into RF circuit design.
And now my probably naive questions:
Is it possible to mix two dds Signals with different frequencies to simultaniously stimulate for instance the fundamental and the third harmonic of a quartz crystal?
And afterwards split those two signals up via a filter network to recieve those resonance frequencies via an logarithmic amplifier?
I hope this question is understandable.
And sorry, English is not my first language