TDA7462 2.1 audio amplifier - diyAudio
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Old 7th June 2006, 04:17 PM   #1
yugaja is offline yugaja  Yugoslavia
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Cool TDA7462 2.1 audio amplifier

TDA7462 2.1 Audio amplifier

Finally I finished this project ( well almost problem with case... ). It is 2.1 audio amplifier built around TDA7462D SGS audio processor chip. I used TDA7294 for sub amplifier, and 2xLM1875 for satellites. The MCU is ATMEL 89c55wd (8051 with 20Kbytes flash memory).
I have a few pictures in very low resolution, sorry!

Click the image to open in full size.

sub.zip
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Old 8th June 2006, 05:31 AM   #2
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This is NICE.
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Old 28th December 2006, 02:58 PM   #3
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the zip file is not opening , i am trying to build a 2.1 system with exact specs for the amp , need help with configuring tda7462 parameters , not sure if the subwoofer output is filtered and if the fc can be changed ,
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Old 9th January 2007, 12:43 PM   #4
yugaja is offline yugaja  Yugoslavia
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OK this is the link to the Serbian HI-FI forum (sorry!!).

http://www.hifi-forumi.com/forum/vie...hlight=sub2005


I will upload some more quality pics later... Anyway, the project isn't completed jet (mechanic#$#@$#)


The subwoofer output can be filtered and you have two fc (I think 90Hz and 115Hz...)

Some measurement results:

http://galeb.etf.bg.ac.yu/~gaja/treble%20_LP.png

http://galeb.etf.bg.ac.yu/~gaja/treble_dw_10KHz.png

http://galeb.etf.bg.ac.yu/~gaja/treble_up_10KHz.png

http://galeb.etf.bg.ac.yu/~gaja/trebleCF.png

http://galeb.etf.bg.ac.yu/~gaja/tda7462d_mon_out.htm
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Old 10th January 2007, 10:48 AM   #5
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Very nice stuff!!!
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Old 11th January 2007, 12:39 PM   #6
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thnx for the link , thai is really good , i am planin to build pc interface for 7462 control ,
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Old 27th June 2007, 06:19 PM   #7
sexya is offline sexya  India
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Default some thing similar

i am workin on some thing similar butmy board is nt as compact as yours some how.. bu t i have have used a TDA7439... and TDA7265 on the same board.. and 89s52... with a JOG wheel.. and a few buttons.. but my problem is the transformer rating can you help with it... how much current 3 amps total or 4.5amps total
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Old 28th June 2007, 08:11 AM   #8
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ru planing for a torroid or EnI trns ? how much current 3 amps total or 4.5amps total , what exactly u mean by that
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Old 28th June 2007, 12:15 PM   #9
sexya is offline sexya  India
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Yeah thats what i know i need a 25volt ac center tapped transformer but how much current as the peak out put current is limited at 4.5 amps. And also if i go for a Tori... How much will it cost and how much expense for e.i. Core. Where are you from bombay or some place else
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Old 12th October 2016, 01:45 PM   #10
Tolu is offline Tolu  Germany
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Hi,

the TDA7462 isn't available anymore and not usefull for new designs. Is there a successor or similar chip of another company available?
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