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From: Caiusfabricius on 31 May 2010 04:23

"who where" <noone(a)home.net> ha scritto nel messaggio
news:cv0606db3dh5npjb3prp14q8ggd3qhmodb(a)4ax.com...
especially if you can get a "sample".

To get the sample is it necessary to have a company (it's a field required)?

>
> Be aware though that although the DS1881 is a drop-in replacment for
> the LM1881, the GS4981 has a different pinout.

Yes, I see the pinout from there:

http://www.datasheetcatalog.org/datasheet/GennumCorporation/mXrrsxs.pdf

but it changes only in PIN 7 which is horizontal sync output instead of
ODD/EVEN circuit.
So, I have to use the same circuit (two 0.1 uf capacitors and a 680 KOhm
resistor) like in the LM1881?


From: stratus46 on 31 May 2010 11:59
On May 31, 1:23 am, "Caiusfabricius" <bric...(a)yahoo.it> wrote:
> "who where" <no...(a)home.net> ha scritto nel
messaggionews:cv0606db3dh5npjb3prp14q8ggd3qhmodb(a)4ax.com...
>   especially if you can get a "sample".
>
> To get the sample is it necessary to have a company (it's a field
required)?
>
>
>
> > Be aware though that although the DS1881 is a drop-in replacment
for
> > the LM1881, the GS4981 has a different pinout.
>
> Yes, I see the pinout from there:
>
> http://www.datasheetcatalog.org/datasheet/GennumCorporation/mXrrsxs.pdf
>
> but it changes only in PIN 7 which is horizontal sync output
instead of
> ODD/EVEN circuit.
> So, I have to use the same circuit (two 0.1 uf capacitors and a 680
KOhm
> resistor)  like in the LM1881?

You should read the data sheet and not just look at the pinout. They
explain why you might want smaller vs larger coupling caps and do show
the same resistors as the LM1881 -- logical if you're trying to make a
drop-in replacement. For your purposes the 4981 vs 4881 in not
important, just a reassignment of the odd/even pin which you're not
interested in.

G²
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