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RE: [Discuss-gnuradio] Input Voltage Range of BasicRX board
From: |
Bahn William L Civ USAFA/DFCS |
Subject: |
RE: [Discuss-gnuradio] Input Voltage Range of BasicRX board |
Date: |
Wed, 17 Jan 2007 12:26:48 -0700 |
> -----Original Message-----
> From: Matt Ettus [mailto:address@hidden
> Sent: Wednesday, January 17, 2007 12:20 PM
> To: Bahn William L Civ USAFA/DFCS; gnuradio mailing list
> Subject: Re: [Discuss-gnuradio] Input Voltage Range of BasicRX board
>
> Bahn William L Civ USAFA/DFCS wrote:
> > If I want to apply the output (50 ohm) from a function generator
> > directly to the BasicRX inputs, what is the allowed voltage range
that
> > can be applied:
> >
> > 1) Without damaging anything?
> >
>
> 3V pk-pk should be safe, since it won't exceed the 3.3V supply voltage
Thanks. Does this mean that the signals need to be DC offset so as never
to go below ground?
>
> > 2) Without exceeding the range of the ADC?
> >
>
> The full-scale range of the ADC is 2 V pk-pk
Is there an offset, or is it 0V to 2V?
>
> > Surely this kind of stuff is documented someplace. But where? I
can't
> > find anything on the Ettus website that has it.
Is there someplace where this is documented?
Thanks a lot.