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Old 24th May 2006, 10:54 AM   #1
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Post Lm1875, Single Or Dual Supply

Dear Friends,

Another doubt,

What and Why is more recommended dual or single power supply for LM1875?

Thanks in advance!!

Alcuemar
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Old 24th May 2006, 10:57 AM   #2
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Do you mean single as in one for each channel, or single as in single rail and AC (capacitor) coupled input and output?
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Old 24th May 2006, 11:08 AM   #3
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I mean.

Single supply powering the LM1875 with V+ and GNd.

And Split supply or dual supply powering the LM1875 with V+, GND and V-.

Alcuemar
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Old 24th May 2006, 12:50 PM   #4
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OK that's clear now.

I would use a split supply +ve gnd -ve as then you can use DC coupled output which gives better performance.
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Old 24th May 2006, 02:46 PM   #5
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Thanks richie,

So at the end It is better to use Split supply to have better performance, isn't it?
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Old 24th May 2006, 03:02 PM   #6
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If performance takes priority over cost and easy build then yes.
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