Can you please upload to WIKI the LPF design characteristics to include amplitude, phase, and group delay characteristics? Also you may want to provide different front end balun options for different frequency bands. Just a thought.
I was about to add the test procedure that we are using, which characterises the offsets for the DAC and ADC, and how those are store into an on-board EEPROM.
I'll post the pointer when I'm done.
I guess one way to work around some of these imbalance issues is to do pre-equalization.
I’m in the process of going through the design and trying to derive some performance expectations. I hoping to buy a couple before the end of the year.
Can you upload the layout as well? I specifically interested in how much space the LPF take and whether or not I might be able to buy matched “can” filters to possible replace them. I’d like to narrow the LPF bandwidth to around 2 MHz (4 MHz baseband).
Do you have any idea how many bits are toggling with no signal present in your current architecture?
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