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Class D Switching Power Amplifiers and Power D/A conversion

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Old 3rd December 2008, 07:52 AM   #1
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Default new part from TI

the ti rep just passed me a prelim datasheet for their 300W class D chip;
The part number is TAS5630 the sheet is not on the TI site, I have a PDF but its to big to upload (640K) pm me (or if some kind person can host it for me i could mail them it)
looks interesting so thought I would share as I find no reference on the forum!
regards
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Old 3rd December 2008, 08:58 AM   #2
xaudiox is offline xaudiox  Philippines
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I can host it on my website.

please email me: xxaudioxx @ gmail.com

thanks
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Old 3rd December 2008, 09:12 AM   #3
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you've got mail!
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Old 3rd December 2008, 09:28 AM   #4
xaudiox is offline xaudiox  Philippines
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here

TAS5630 > http://www.ferdsaudio.com/Downloads/...ET/TAS5630.pdf

also found this presentation

http://tibrasil.sabereletronica.com....0at%20600W.ppt

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Old 3rd December 2008, 01:00 PM   #5
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Nice, did the rep happen to say when this will be released?

It looks like there is a lower powered version as well (TAS5615).
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Old 3rd December 2008, 04:49 PM   #6
bwaslo is offline bwaslo  United States
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Lessee, 600W at 90% efficiency leaves 60W behind as heat.
Bet it doesn't do that for very long!
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Old 3rd December 2008, 05:17 PM   #7
Pafi is offline Pafi  Hungary
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Efficiency is supposed to be greater then 90 %. Music signal doesn't contain very long 0 dB level components. There is a significant heat sink area on the package.
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Old 3rd December 2008, 08:53 PM   #8
Gyula is offline Gyula  Hungary
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As I know an average normalized music record has 1/8 power than the power of full-scale sine. So the average power dissipation should be 60/8=7.5 W because the FETs' channel are also resistive. I think the heating would be quite even, because the thermal resistance and capacitance given thermal bandwidth is very low.
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Old 4th December 2008, 02:15 AM   #9
ja2dhc is offline ja2dhc  Japan
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Default Re: Thanks

Quote:
Originally posted by xaudiox
here

TAS5630 > http://www.ferdsaudio.com/Downloads/...ET/TAS5630.pdf

also found this presentation

http://tibrasil.sabereletronica.com....0at%20600W.ppt

Hello from Japan ! Thank you very much for uploading documents which I have quickly reviewed.

Good LSI ! However DIY point of view, there is less flexfibillity to embed amp-designer's circuit ideas since the LSI is highly integrated including power MOSFETand internal NFB. This LSI allows LPF tuning and input interface for amp-designers' flexibillity.
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Old 7th December 2008, 05:26 PM   #10
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got the sheet for the ower power part also- can pass on and hopefully that can be hosted like this one.
rep said parts are sampling q1- have 5 samples of each on order will let you know when they arrive!
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