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Digital controlled source selector
Digital controlled source selector
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Old 8th November 2018, 08:39 AM   #1
ludl is offline ludl  Sweden
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Join Date: Mar 2013
Default Digital controlled source selector

I have a preamp with MC15051 for selecting source.
This chip is rather unlinear
Any suggestion for upgrade?
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Old 8th November 2018, 09:49 AM   #2
OlegSh is offline OlegSh
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Join Date: Dec 2010
Location: Germany
Digital controlled source selector
The simplest is to use a signal relay based source selector.
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Old 8th November 2018, 10:09 AM   #3
ludl is offline ludl  Sweden
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Yes, a relay solution would be ideal.
But how to do it in practice.
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Old 8th November 2018, 06:02 PM   #4
OlegSh is offline OlegSh
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Join Date: Dec 2010
Location: Germany
Digital controlled source selector
If you already have control logic signal for selecting the inputs then just use ULN2003 Darlington transistor array to turn the relays ON/OFF.
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