Path: utzoo!utgpu!watserv1!watmath!att!bellcore!bellcore-2!rutgers!psuvax1!uwm.edu!cs.utexas.edu!samsung!munnari.oz.au!cow!bmp
From: bmp@cow.ecs.oz (Bruce Paterson)
Newsgroups: sci.electronics
Subject: Re: specs for TA7205P
Summary: I gave up...
Keywords: Toshiba Audio Amp chip
Message-ID: <506@cow.ecs.oz>
Date: 23 Jul 90 06:26:27 GMT
References: <16659@frog.UUCP>
Organization: Email Electronics, Melbourne, Australia.
Lines: 31

In article <16659@frog.UUCP>, john@frog.UUCP (John Woods) writes:
> Does anyone have the specs for a Toshiba TA7205P?  It is an audio amp chip
> used on a board that I am removing parts from.
> -- 
> John Woods, Charles River Data Systems, Framingham MA, (508) 626-1101
> ...!decvax!frog!john, john@frog.UUCP, ...!mit-eddie!jfw, jfw@eddie.mit.edu

I tried hounding Toshiba for this datasheet and also the TA7214P which is
the dual amp version. Basically I was passed from division to division
to supplier to division, till finally some Toshiba person recommended
I ring Email Electronics, which was where I was ringing from !!

I gave up in disgust ! Even the service personnel seemed to have difficulty
comprehending what a datasheet was !

I have the "hand traced" circuit I made from the Clarion car deck where the
205P is used, and from that I could work out what most of the pins were.
The TA7205P is supposedly 7.5W. It requires external compensation, bootstrap
capacitor, output coupling capcaitor (delete in a bridge circuit), output
stablisation capacitor, input coupling cap and feedback components. I'm
not sure what the capacitor beween the + rail and the pin next to the 
+ rail was for ? (If you ever find out Please let me know).

Sorry to inflict this tale of woe on you, hope you fare better !
				Bruce 


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