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greatscottgadgets
Feature Request: use all the 10 bits of the DAC
Sorry if this is the wrong place for asking it. For certain applications 8 bits DAC is quite limiting. As the DACs in MAX5864 are10 bits wide it would be great to have an USB connection mode transferring 16 bits wide samples (accepting a decrease in the maximum usable sample rate) in addition to the defaul mode transerring 8 bits samples . Thanks
┆Issue is synchronized with this Basecamp todo by Unito
This is theoretically possible, but it would require a great deal of work. In my opinion, it would provide very little benefit. It is already possible to simulate higher resolution at lower sample rates by using a high sample rate with a low bandwidth reconstruction filter (e.g. hackrf_transfer -s 20000000 -b 1750000).
Can you describe a specific example of an application that would benefit greatly from 10 bit TX resolution?
My application is in a traffic emulator for random spread spectrum signals In this application i can generate a large number of cofrequency spread spectrum signals with the number of signals which can change with time to emulate random variabiliti of traffic
Sorry i closed inadvertently the message. To conclude I agree that my case is a fringe case. Feel free to close the issue if you think it is not Worth the effort and thanks for the good work you are done.
by using a high sample rate with a low bandwidth reconstruction filter (e.g. hackrf_transfer -s 20000000 -b 1750000 Is this trick possible in gnuradio? I also think it's great idea to have 10 bits onboard for more precise accuracy. For some modulations is not necessary to have 8 bit.
I'm happy to leave this issue open in case anyone wants to work on it, but I don't plan to spend time on it myself.
I'm closing this issue because I no longer believe it to be theoretically possible without a complete reimplementation of our CPLD and SGPIO solutions, removing some other functionality that we rely on. A custom solution for a particular use case may be possible, but it would be external to this repository.