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AD8347 Lower Band Operation

Does anyone have any idea whether or not the AD8347 I/Q Demodulator might still operate at 600 MHz?

I fully realize the part isn't specified for that band but was hoping that there might be enough residual operation for it to work in my application. I'm assuming that the gain, noise figure, OIPs, etc will be roughly the same and that, if anything, the I/Q balance will be the problem.

I'd make the measurement myself but don't have an eval board and won't be able to get one in house before this information is needed (end of this week - January 27th).

I already understand all the caveats up front - the part isn't specified for this band and ADI absolves all responsibility for using the part outside the published specifications. Past that though, does anyone have any clue or inclination they can share about this?