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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: Rubycon ZA for analog decoupling ? posted by kalido on March 9, 2009 at 05:11:59:
I do not use the ZA much anymore. The Zlg and Zlh are smaller, cheaper, and lower impedance. The ZA were good when there was only ZL for comparison.
I do not think that very low Z caps are bad for analog decoupling. The application where they cause problems is when used close to the output of a regulator. Here a ZL cap or a ZAwith say a 0.2 ohm resistor in series is needed to damp ringing. Close is say with. An inch of the regulator.
If used for to decouple a transistor or chip, the lower the better. Same here, the cap needs to be close.
George
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Follow Ups
- Complicated - Panelhead 12:50:05 03/09/09 (1)
- Sound Advice, George.......... - spindrifter 05:53:10 03/13/09 (0)
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