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Design >> Analog Design >> Limiting amplifier/RSSI offset subtracter.
https://designers-guide.org/forum/YaBB.pl?num=1214989284

Message started by aaron_do on Jul 2^nd, 2008, 2:01am

Title: Limiting amplifier/RSSI offset subtracter.
Post by aaron_do on Jul 2^nd, 2008, 2:01am

Hi all,

just wondering, for a limiting amp based RSSI, is it necessary to have a DC offset subtracter for the limiting amps? I've seen one paper with and one paper without...

The receiver is not a direct conversion receiver, but i guess the output might still saturate...

thanks,
Aaron

Title: Re: Limiting amplifier/RSSI offset subtracter.
Post by pancho_hideboo on Jul 3^rd, 2008, 6:32am

aaron_do wrote on Jul 2^nd, 2008, 2:01am:

just wondering, for a limiting amp based RSSI, is it necessary to have a DC offset subtracter for the limiting amps?

Yes, DC offset cancellation is very necessary especially in CMOS RSSI.