Re: biasing of analog circuit

On Aug 26, 5:40=A0am, fz <fzhang...@[EMAIL PROTECTED]
> wrote:
> Hi all,
> I came across a dc biasing problem of a homodyne receiver.
> The output of the direct conversion mixer is connected to a VGA. The
> first stage of VGA and the output of mixer have different DC biasing
> values. I know common source or source follower could be used to ****ft
> the DC bias. But we will lose the flexibility of tuning the biasing of
> VGA during experiment.
> Is there any other means to bias the VGA in this case?
> thanks
>
> fz

Dear Fz,

Did you try to ask in the following forums ?
1. http://www.designers-guide.org/Forum/
2.
http://www.edaboard.com/viewforum.php?f=3D88&sid=3D3c159b2c7f9cdd4ca6c48=
cd5e380b7d1

I would recommand these links for more design/architecture related
questions.

if you have any troubles running your design under Cadence's DFII then
this is definitelty the right group :-)

Good luck !
Riad.