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PICList Thread
'On Screen Display (OSD) IC'
1998\02\18@022652 by Facci, John

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I'm looking at creating a PIC 84 project to control a VCR for a Home
Security System.
I would like to add a OSD of time and date to the recorded image. Not
knowing anything
about video signals I looked into OSD Ic's. I found a SGS-Thompson
STV-5730 IC that
looks good, but cannot find anyone to supply it locally.
Does anyone know where I can buy this in small retail?
Alternative suggestions welcome.

Thanks
John

1998\02\18@023934 by Stephen Court

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part 0 836 bytes
Many months ago, I managed to get some samples from Braemac (after plenty of whinging!).  I have the details at home re: costs and MOQ etc.  I can recall numbers something like MOQ=112 @ $4.50 each.... but I'll check to be sure and let you know tomorrow.

Regards,
Stephen Court
Brisbane, Aus.

{Original Message removed}

1998\02\18@070321 by Andy Kunz

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At 05:39 PM 2/18/98 +1100, you wrote:
>about video signals I looked into OSD Ic's. I found a SGS-Thompson
>STV-5730 IC that
>looks good, but cannot find anyone to supply it locally.

Sony has a very nice one which I've used before.  I forget the part number,
but there's always the web.

Andy


==================================================================
                   Andy Kunz - Montana Design
==================================================================

1998\02\18@102314 by Gennady Palitsky

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I used NEC uPD6450, 6453 and so on in most of my video projects. They are
pretty easy to use (easier than SGS's 5730 - I used that one also). The only
problem with them - check with NEC in advance, because they have tendency to
discontinue their parts without any notice.
I am not sure I have extra databook, but I think you can download datasheets
from NEC website.
Good luck.

Gennady Palitsky
Jefferson Audio Video Systems
spam_OUTgennadypTakeThisOuTspammainlink.net

{Original Message removed}

1998\02\18@135741 by John Payson

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>  I'm looking at creating a PIC 84 project to control a VCR for a Home
> Security System.
> I would like to add a OSD of time and date to the recorded image. Not
> knowing anything
> about video signals I looked into OSD Ic's. I found a SGS-Thompson
> STV-5730 IC that
> looks good, but cannot find anyone to supply it locally.
> Does anyone know where I can buy this in small retail?
> Alternative suggestions welcome.

Given that PICs have gotten very cheap, you could probably use a PIC to do
the time/date stamp; you'd want to use a chip dedicated to that purpose,
independent of other system activity (so glitches in your video don't wreak
havoc on everything else) but I would suggest that a low-resolution display
may be quite practical using "just" a 5484, sync detector, and video mux.
The key would be to run the PIC on an RC oscillator, and to put it to sleep
just before the end of each scan line.  Then use "wake-on-interrupt"  at
the start of the next scan line and the clock will be in a fixed phase rel-
ationship with HSYNC.  You'll of course have to put up with variations in
clock rate with the RC, but for time/date stamping that shouldn't be too
much of a problem.

1998\02\19@022054 by Nigel Goodwin

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In message <000d01bd3c7e$619a9b30$8b71a8c0@gennady>, Gennady Palitsky
<.....gennadypKILLspamspam@spam@MAINLINK.NET> writes
>I used NEC uPD6450, 6453 and so on in most of my video projects. They are
>pretty easy to use (easier than SGS's 5730 - I used that one also). The only
>problem with them - check with NEC in advance, because they have tendency to
>discontinue their parts without any notice.
>I am not sure I have extra databook, but I think you can download datasheets
>from NEC website.

I've used the UPD6450, it has now been dropped from production but is
still currently available while stocks last!. Datasheets are very hard
to obtain, I haven't been able to find them on the NEC web site - but I
did get one (EVENTUALLY!!!!) for it's replacement from the NEC
distributers in the UK, but am still waiting for actual samples of the
chip :-(.
--

Nigel.

       /--------------------------------------------------------------\
       | Nigel Goodwin   | Internet : nigelgspamKILLspamlpilsley.demon.co.uk     |
       | Lower Pilsley   | Web Page : http://www.lpilsley.demon.co.uk |
       | Chesterfield    |                                            |
       | England         |                                            |
       \--------------------------------------------------------------/

1998\02\19@022717 by Nigel Goodwin

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In message <c=AU%a=_%p=AAG%l=AMSNT1ADL-980218065407Z-
.....3289KILLspamspam.....aagnt1bne.aag.com.au>, Facci, John <EraseMEJFaccispam_OUTspamTakeThisOuTNETBRIDGE.COM.AU> writes
> I'm looking at creating a PIC 84 project to control a VCR for a Home
>Security System.
>I would like to add a OSD of time and date to the recorded image. Not
>knowing anything
>about video signals I looked into OSD Ic's. I found a SGS-Thompson
>STV-5730 IC that
>looks good, but cannot find anyone to supply it locally.
>Does anyone know where I can buy this in small retail?
>Alternative suggestions welcome.

You could try the NEC OSD chips, I have working 16C84 code for feeding
the UPD6540, but this chip has now been replaced by a later chip - I've
been waiting many months for a sample of the new chip.

If you just want to add time and date there are ready made modules
available from Maplin in the UK, reference 'TDGM622-1TimeDateVGM'.
Technical details in PDF format can be downloaded from
'http://www.maplin.co.uk' the UK price is 49.95 UP.
--

Nigel.

       /--------------------------------------------------------------\
       | Nigel Goodwin   | Internet : nigelgspamspam_OUTlpilsley.demon.co.uk     |
       | Lower Pilsley   | Web Page : http://www.lpilsley.demon.co.uk |
       | Chesterfield    |                                            |
       | England         |                                            |
       \--------------------------------------------------------------/

1998\02\19@132003 by Gennady Palitsky

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Yes, 6450 has been replaced by 6564 (they say it's a little bit more
advanced and a little bit harder to program (?!)). And they have databooks
ready to be sent out at 800-366-9782 (semiconductors,literature). Nothing in
PDF at the website, though.

Gennady Palitsky
Jefferson Audio Video Systems
@spam@gennadypKILLspamspammainlink.net


>I've used the UPD6450, it has now been dropped from production but is
>still currently available while stocks last!. Datasheets are very hard
>to obtain, I haven't been able to find them on the NEC web site - but I
>did get one (EVENTUALLY!!!!) for it's replacement from the NEC
>distributers in the UK, but am still waiting for actual samples of the
>chip :-(.
>--
>
>Nigel.

1998\02\22@195129 by Charles Hoss

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does anybody know about an osd ic which
displays the
picture on an incoming video signal ?
I need something like the satellite
receiver osd
which display on the background picture
without the need to
split it into rgb sync .
colour if possible - but any solution is
interesting
right now :)

bye
charley

1998\02\22@212905 by unam

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Try Motorola's MC44460

Charles Hoss wrote:

{Quote hidden}

1998\02\23@072526 by Andy Kunz

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At 01:24 AM 2/23/98 +0100, you wrote:
>does anybody know about an osd ic which
>displays the
>picture on an incoming video signal ?

Check out Zilog.  The signal comes in during the Vertical Blanking Interval
(VBI) and Zilog makes several chips which are designed around a video
processing core developed by, I believe, a company on Long Island.

Andy


==================================================================
                   Andy Kunz - Montana Design
==================================================================

1998\02\23@093912 by Richard Katezansky

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It's been at least 5-6 years since I last worked with this.  These types of
devices were common in VCR's.   Fujitsu produced the MB88303, 323, 325, 327
ect. which produced RGB output as well as the ability to overlay on
composite video.  Some devices are capable of color but require external
circuitry to sync the color on overlay.  Mitsubishi produced the M50545
family which did much the same.  The NEC chip that everyone keeps
mentioning may be capable of this as well.  In any event if you require
only a few parts for a one off project I do have some stock of several of
the Fujitsu and Mitsubishi parts as well as documentation.  It interested
send me PRIVATE e-mail.

Regards.

At 01:24 AM 2/23/98 +0100, you wrote:
{Quote hidden}

******************************
Richard Katezansky
Tangent Electronics Ltd.
Montreal, Canada
******************************

1998\02\23@194230 by Engineering Department

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> >does anybody know about an osd ic which
> >displays the
> >picture on an incoming video signal ?

<Andy Kunz replies>
> Check out Zilog.  The signal comes in during the Vertical Blanking
Interval
> (VBI) and Zilog makes several chips which are designed around a video
> processing core developed by, I believe, a company on Long Island.

It's the Zilog Z86129 based on a design by EEG in Farmingdale (I think)
Long Island.  A famously quirky chip with practically no technical
support because it really isn't a Zilog product.

Another even more arcane chip is the CCD3000 by ITT which
will do OSD.  It was designed by the National Captioning
Center with tax dollars.  An outfit, "Frontier Electronics" in
Canada I think, seems to have a stash of them.  But again
there's no technical support from ITT.

Check out Philips, I think they have a family of OSD chips
that they support.

Cheers,

Win Wiencke
Image Logic Corporation

1998\02\24@044239 by Nigel Goodwin

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In message <KILLspam34F0C1A1.9E5C0082KILLspamspambekes.hungary.net>, Charles Hoss
<RemoveMEtimothyTakeThisOuTspamBEKES.HUNGARY.NET> writes
>does anybody know about an osd ic which
>displays the
>picture on an incoming video signal ?
>I need something like the satellite
>receiver osd
>which display on the background picture
>without the need to
>split it into rgb sync .
>colour if possible - but any solution is
>interesting
>right now :)

Try the NEC upd6450, I have a working circuit and 16C84 code. This I/C
is now out of production, but still available (for the moment) - i'm
still waiting for samples of it's replacement.
--

Nigel.

       /--------------------------------------------------------------\
       | Nigel Goodwin   | Internet : spamBeGonenigelgspamBeGonespamlpilsley.demon.co.uk     |
       | Lower Pilsley   | Web Page : http://www.lpilsley.demon.co.uk |
       | Chesterfield    |                                            |
       | England         |                                            |
       \--------------------------------------------------------------/

1998\02\24@154438 by Charles Hoss

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unam wrote:
>
> Try Motorola's MC44460
>

thanks :)

bye
charley

1998\02\26@155553 by Tom Mariner

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Hello Phil,

Here is the e-mail that I mentioned. If you want, I will find out who the
original author was.

Tom

On Monday, February 23, 1998 7:27 AM, Andy Kunz [SMTP:TakeThisOuTmontanaEraseMEspamspam_OUTFAST.NET] wrote:
{Quote hidden}

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