Hi All...
I was just sittin' here idling away some time when outta nowhere this question pops into my brain; since I don't normally use the mute function on a LM3886, would there be any audible benefit to using an active current source instead of the usual resistor?
Any thoughts?
Mike
I was just sittin' here idling away some time when outta nowhere this question pops into my brain; since I don't normally use the mute function on a LM3886, would there be any audible benefit to using an active current source instead of the usual resistor?
Any thoughts?
Mike
Hi All...
I was just sittin' here idling away some time when outta nowhere this question pops into my brain; since I don't normally use the mute function on a LM3886, would there be any audible benefit to using an active current source instead of the usual resistor?
Any thoughts?
Mike
Look at
http://www.rane.com/pdf/old/ma3sch.pdf
the schematic of MA3 amplifier by Rane (Rane Corporation)
At least by straightforward simulations and thought experiments, there is no benefit to a current source on the mute pin. Having said that, I use a current source on the mute pin in my products...
for example, take a look at this assembly manual, the schematic one page from the end....Q2, D3, and R6 are a current source for the mute. But, if you look at the schematic of the LM3886 internals, it just switches an internal current source. I can't see any real difference, assuming responsible design.
http://www.updatemydynaco.com/documents/AssemblyManualRev2.08.pdf
for example, take a look at this assembly manual, the schematic one page from the end....Q2, D3, and R6 are a current source for the mute. But, if you look at the schematic of the LM3886 internals, it just switches an internal current source. I can't see any real difference, assuming responsible design.
http://www.updatemydynaco.com/documents/AssemblyManualRev2.08.pdf
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