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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Dynamic Noise Reduction chips posted by ltman on February 5, 2024 at 15:29:34:
Do you have the schematic? After looking at the data sheet for the LM1894 it makes me wonder why use 2 of the IC's. The app note shows one of the IC's being capable of processing a a stereo pair. Getting rid of one of them, cutting the load in half would go a long way toward keeping two series 9V's happy longer. I don't know if that is a LDO in the lower left but I might even be tempted to try running it straight off the batteries too. It has decent power supply rejection.
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Follow Ups
- RE: Dynamic Noise Reduction chips - Ugly 20:13:29 02/07/24 (1)
- I found TI's AN-390 - Ugly 22:26:21 02/09/24 (0)
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