Path: utzoo!utgpu!news-server.csri.toronto.edu!clyde.concordia.ca!uunet!mcsun!ukc!acorn!agodwin
From: agodwin@acorn.co.uk (Adrian Godwin)
Newsgroups: sci.electronics
Subject: Re: specs for TA7205P
Keywords: Toshiba Audio Amp chip
Message-ID: <2570@acorn.co.uk>
Date: 23 Jul 90 17:56:53 GMT
References: <16659@frog.UUCP> <506@cow.ecs.oz>
Organization: Acorn Computers Ltd, Cambridge, UK
Lines: 23

In article <506@cow.ecs.oz> bmp@cow.ecs.oz (Bruce Paterson) writes:
>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 TA7205P is supposedly 7.5W. It requires external compensation, bootstrap

I have a 1987 Toshiba 'AUDIO LINEAR IC'S' (3702D) data book which lists a TA7205AP
5.8W amp, and a TA7241AP 2 x 5.8W amp. I'm not sure about the A suffix,
but this seems like the same device. I can't find it in later data books.
Tandy in the UK will even sell you one, though I don't know about data.

>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).


The capacitor attached to pin 2 (shown as 68nF on the application circuit from
Vcc to pin 2, but recommended between pin 2 and ground) is apparently
used to improve PSU ripple rejection. It need not be connected.