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Old 18th February 2008, 06:24 PM   #1
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Default Lme49830

This looks interesting
LME49830
Mono High Fidelity 200 Volt MOSFET Power Amplifier Input
Stage with Mute 3
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Old 18th February 2008, 06:43 PM   #2
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I dare say my friend, what hath you confused?

Peace,

Dave
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Old 18th February 2008, 10:34 PM   #3
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Sorry, forgot to put the link in


http://www.national.com/pf/LM/LME49830.html
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Old 19th February 2008, 01:14 AM   #4
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I'm still not sure what has you confused. The LME49830 is a chip for providing voltage amplification and drive capability to drive the final stage transistors for the output stage. Basically it replaces multiple discreet transistors that would otherwise be necessary to provide for the input stages of the power amp. Hope this helps.

Peace,

Dave
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Old 21st February 2008, 10:51 AM   #5
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Interesting.
Input, vas and driver stages in one package.

Anybody know how the datasheet specs compare to using discretes?

Also what would make a good output MOSFET?
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Old 21st February 2008, 02:11 PM   #6
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gentlemen, I believe you are in the wrong department

this chip and its cousings is discussed at:
LME49810 - a new cousin for LM4702

where you find most answers and more questions regarding the application of the national driver ICs.

/Rickard
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Old 21st February 2008, 03:26 PM   #7
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Thanks rikki!

Thought 'Chip Amps' room is for all-in-one chips like Gainclones and Tripaths.
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