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Time/Date generator for CCTV


Moderators: Ajay, Junied , abbas1707, Arun Kumar V, pdi33, Shailesh NAYAK, ۞ TPS ۞, shyam, sashijoseph

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SVHANS

Fri Jun 27 2008, 04:08AM

Registered Member #8546

Joined: Sat Jun 21 2008, 05:01AM

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I was hoping someone could help me with a Time Date Generator using the MAX7456 and a micro to drive the Time date. Details for MAX7456 can be found at http://www.maxim-ic.com/appnotes.cfm/an_pk/4184

There used to be a few kits around that did this using a STV5730A which is now obsolete. basically you only had 3 buttons to program the time and date function and it overlayed on the video monitor while you were recording.

Apparently the MAX7456 can do this, but i need help with the Micro to control it.

Thanks

Stu

Arun Kumar V

Fri Jun 27 2008, 08:09AM

Registered Member #426

Joined: Sun Jan 28 2007, 11:50PM

Posts: 427
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Hello Stu,

its me again !

i got a sample of the same from Maxim long back, but could not try it bcoz of 3 reasons :

1) couldn't find 27Mhz crystal (odd freq)
2) it comes in a 28 pin TSSOP pkg, which makes it further more difficult to wire and test
3) it has a very large no:of control/command registers which need to be addressed before any data is sent.

Arun

SVHANS

Fri Jun 27 2008, 05:15PM

Registered Member #8546

Joined: Sat Jun 21 2008, 05:01AM

Posts: 12
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thanks again Arun!

I was thinking i could probably overcome 2 of the problems.

i can easily source 27Mhz crystals and would a small pcb converting it from a SMD to the standard DIP package help?

let me know what you think?

Stu

Arun Kumar V

Fri Jun 27 2008, 06:28PM

Registered Member #426

Joined: Sun Jan 28 2007, 11:50PM

Posts: 427
Thanked 178 times in 149 posts

Great!

i can take care of the third problem, but i would need the other two things for developing code and debugging, can you send it thru postal service to me ?

Arun