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Old 10th May 2007, 12:17 AM   #1
NIC1138 is offline NIC1138  Brazil
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Default strange chip UTC FM93 2822

I opened up an old computer "multimedia" amplifier to savage a speaker and take a look at its guts. It loos like it's based on a small 8 pin DIP chip written

UTC FM93
2822

Does anybody has a clue of what is it?? Any relation to TDA2822, perhaps?? (but this one has 16 pins! )

FM93 in google returns a lot of radio stations!
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Old 10th May 2007, 12:26 AM   #2
BWRX is offline BWRX  United States
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Default Re: strange chip UTC FM93 2822

Quote:
Originally posted by NIC1138
Any relation to TDA2822, perhaps?? (but this one has 16 pins! )
Good guess!

Go here: http://www.datasheet4u.com/html/T/D/...M_UTC.pdf.html

and download the pdf datasheet.
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Old 10th May 2007, 06:48 AM   #3
NIC1138 is offline NIC1138  Brazil
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Thank you! I wanted to take a look at the output power and laugh a bit! (1W!)

The datasheet says it's for "portable cassette players and radios"... How can someone have the nerve to use this for a table-top amplifier?...

Has anybody ever seen a nice / fine / accaptable pair of computer "multimedia speakers", like those bought on computer stores? What was the actual power and chips?...
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Old 15th May 2007, 02:59 AM   #4
Leolabs is offline Leolabs  Malaysia
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It's cheap and cheerful chip,not bad for a headphones.
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