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Re: [Discuss-gnuradio] Schematics for tvrx frontend?
From: |
Harald Welte |
Subject: |
Re: [Discuss-gnuradio] Schematics for tvrx frontend? |
Date: |
Mon, 18 Apr 2005 17:24:58 +0200 |
User-agent: |
mutt-ng 1.5.8-r168i (Debian) |
On Sun, Apr 17, 2005 at 12:59:29PM -0700, Matt Ettus wrote:
> Quoting Harald Welte <address@hidden>:
>
> > Hi!
> >
> > Since my TVRX frontend just arrived the other day (even without having
> > to pay any taxes, this has never happened for anything I ordered from
> > the US so far), I would be interested in the schematics.
> >
> > I've got a number of cheap (USD8 each) Comtech (.com.tw) DVB-T and DVB-S
> > tuner samples (both have 0.9Vpp I and Q output, and I'd like to
> > experiment with creating frontends for them.
> >
> > So to start lazy, I would try basing my frontend on the TVRX schematics
>
> Thanks for reminding me. I've put them up on the ettus.com download page.
Thanks!
I was really surprised that there basically is no circuitry (like
opamp-based impedance matching) between the tuners' output and the ADC.
--
- Harald Welte <address@hidden> http://gnumonks.org/
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