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Old 24th January 2016, 07:20 PM   #1
madamx6 is offline madamx6  Ireland
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Join Date: Feb 2010
Default Will This Work? LME48930

Hello, this is my first time posting on this forum.

I am a beginner with this sort of thing, but I am doing a complete hifi build, and I want to know if this design will work well enough to get me started.

Will the following Power amplifier design work? It is basically the LME 48930 design taken from "The Wire", but I have omitted the mute circuit, and any coupling capacitors. It will be powered by batteries; I will try and get ones with 1000A instantaneous delivery.

Click the image to open in full size.

Thanks, I appreciate any input
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Old 25th January 2016, 10:25 AM   #2
AndrewT is offline AndrewT  Scotland
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Location: Scottish Borders
the 49830 needs at least 40V rail to rail even when heavily loaded to operate.
It needs the mute to be defeated to operate.
Pins 15 & 10 are the power
Pins 4 & 5 the signal.

Have you read the Ti docs?
LME49830 | Mid/High-Power Class D Amplifiers | Audio | Technical documents
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Last edited by AndrewT; 25th January 2016 at 10:27 AM.
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