LME49600 simple headamplifier - diyAudio
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Old 28th December 2014, 08:45 AM   #1
scafas is offline scafas  Italy
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Default LME49600 simple headamplifier

i am affering this stereo board for a simple lme49600 stereo headamplifier.
the electric diagram was taken from datasheet of 49600.
the board is a two layer with a +15 ,0 ,-15 volt stabilization psu.
the price is 11 eu , for ship ask me.

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Old 28th December 2014, 10:00 AM   #2
AndrewT is offline AndrewT  Scotland
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post the schematic you have actually used.
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Old 28th December 2014, 10:05 AM   #3
scafas is offline scafas  Italy
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Default schematic

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Old 28th December 2014, 10:17 AM   #4
AndrewT is offline AndrewT  Scotland
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Your circuit is DC coupled throughout !
What protects your/our headphones from excessive output offset when the DC servo runs out of headroom?
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Old 28th December 2014, 10:28 AM   #5
scafas is offline scafas  Italy
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Default test

i tested it and works very well , no dc problems .
you can add in-output caps??
http://www.ti.com/lit/ds/symlink/lme49600.pdf
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Old 28th December 2014, 10:51 AM   #6
AndrewT is offline AndrewT  Scotland
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I agree the DC coupled with DC servo will work well when there are no faults.

The question I asked was:
Quote:
What protects your/our headphones from excessive output offset when the DC servo runs out of headroom?
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Old 28th December 2014, 11:25 AM   #7
scafas is offline scafas  Italy
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no security , I trust the technology of texas Instrumens
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Old 28th December 2014, 11:28 AM   #8
AndrewT is offline AndrewT  Scotland
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and your source equipment?
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Old 28th December 2014, 02:59 PM   #9
impuls is offline impuls  Yugoslavia
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This pcb has a bad ground routing
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Old 28th December 2014, 04:42 PM   #10
scafas is offline scafas  Italy
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Quote:
Originally Posted by impuls View Post
This pcb has a bad ground routing
i don't understand , where?
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