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Limiting amplifier/RSSI offset subtracter. (Read 2026 times)
aaron_do
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Limiting amplifier/RSSI offset subtracter.
Jul 02nd, 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
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pancho_hideboo
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Re: Limiting amplifier/RSSI offset subtracter.
Reply #1 - Jul 3rd, 2008, 6:32am
 
aaron_do wrote on Jul 2nd, 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.
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