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Max7456 OSD chip

:: EPE Chat Zone ­:: ­Radio Bygones Message Board :: » EPE Forum Archives 2007-2009 » Archive through 09 February, 2009 » Max7456 OSD chip « Previous Next »

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terry
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Username: terry

Post Number: 514
Registered: 05-2005

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Posted on Sunday, 01 February, 2009 - 07:33 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Has anyone used the max7456 chip with a pic yet?
I'm interested to have a play but need to hit the ground running due to little time. Maybe it will surface in the mag?

Terry
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john_becker
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Username: john_becker

Post Number: 1850
Registered: 05-2005

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Posted on Sunday, 01 February, 2009 - 07:45 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

What is it Terry?

J
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ago
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Username: ago

Post Number: 25
Registered: 02-2008

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Posted on Sunday, 01 February, 2009 - 08:19 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Looks like an interesting device - on-screen display superimposed on PAL or NTSC video signal. Nightmare to solder (0.65mm TSSOP), quite expensive due to £/$ rate. Seemingly there's an evaluation kit available (Digikey can supply, see http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=MAX7456EVKIT%2B-ND)
If it's stupid but works, it isn't stupid.
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joe
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Username: joe

Post Number: 509
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Posted on Monday, 02 February, 2009 - 08:31 am:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Not used that part, but have used the STV5730, which whilst having a smaller number of rows / characters does support colour.

I used to get them from RS a couple of years ago. Dont know if they still have them
Joe
Do one thing each day that scares you – work here !
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zeitghost
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Username: zeitghost

Post Number: 1251
Registered: 01-2006

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Posted on Monday, 02 February, 2009 - 09:22 am:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

5730 is obsolete... but it was a good deal cheaper than that Maxim part.
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joe
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Post Number: 510
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Posted on Monday, 02 February, 2009 - 09:40 am:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Progress... pfffff.

That MAX part is nearly £18 from Farnell and it's not even colour.
Do one thing each day that scares you – work here !
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jaybee
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Username: jaybee

Post Number: 9
Registered: 11-2006

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Posted on Monday, 02 February, 2009 - 10:30 am:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Take a look at this:

http://www.micro-examples.com/public/microex-navig/doc/081-pic-osd-superimposer

John
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terry
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Username: terry

Post Number: 515
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Posted on Monday, 02 February, 2009 - 03:14 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Not colour but you can define your own characters and will leave the pic free to do the maths or whatever for what you want to display. Also Maxim are good at giving away free samples ;)

Terry

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