[linux-dvb] Re: Nexus-CA/stv0297 problems

[timkaiser@t-online.de (Tim Kaiser)]

Am Freitag, 19. November 2004 13:46 schrieb Tim Kaiser:
> Am Freitag, 19. November 2004 12:42 schrieb Johannes Stezenbach:
> > On Fri, Nov 19, 2004 at 03:14:56AM +0100, Robert Schlabbach wrote:
> > > From: "Andrew de Quincey" <adq_dvb@lidskialf.net>
> > >
> > > > Hi, I'm trying to get this Nexus-CA card with an stv0297 demod going.
> > > > As far I can see I'm programming the tuner and the demod correctly...
> > > > however the demod never locks - its like it never gets any data from
> > > > the tuner.
> > >
> > > The STV0297 is not directly wired to the tuner - there is a TDA9819
> > > DVB/analog IF AGC amplifier in between. That chip needs to be switched
> > > between analog and DVB mode.
> >
> > So does the Nexus-CA card support analog TV like the old Siemens card?
> >
> > Johannes
>
> Yes!

If somebody is interested in it....it looks like this:
The TDA9819 exist

The IC has two inputs at pin 9 and 30

Both seems to be controlled by saa7146.
The board uses the 160 Pin variant of the 7146.

Saa7146         TDA9198

Pin                  Pin

141   -->      30
143   -->        9
150   --> 10kOhm -->  Pin 9

Means pin 143 and 150 are connected through a paralel 10k resistance.