single chip music player

Sep 06, 2005 3 Replies
C

I am trying to help a friend find a chip that I suspect doesn't exist but I have to give it a try. He wants a simple circuit that will play a single song when a button is pressed (I have no idea why). I have found a few voice recorder type chips that will do it that simply but they don't have enough run time and the sound quality is low. Other than that all I have found requires some kind of microprocessor and often even a separate flash memory interface. Which all seems over kill way to complex for the the stated purpose. Anyone know of any thing that will fit the bill?


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V

Look at the UM66. It can play simple melodies like "happy birthday", it's used in greeting cards and such. It comes in a T092 packages and can drive directly a piezo transducer or a speaker with a transistor.

vic

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J

there are available music chips that have factory programmed tunes in them. Greensleeves, merry christmas, etc...

But if you want to chose the tune yourself you need a microprocessor of some sort. I found that 2K of rom was suffuicient.

most small micros have a PWM output that can be used if you don't want to go to the effort of making an R-2R divider for the DAC...

here's one I prepared earlier :)

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Bye. Jasen

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R

Look at some of the ISD chips

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