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If it’s really 1 mF uF it’s an electrolytic capacitor, which WILL leak a few microamps, depending on age, temperature, and bias voltage. So what is the load? Sign up using Facebook.
LMN Datasheet(PDF) – National Semiconductor (TI)
I have a load currently of 10ohms, it removes the DC offset however the Voltage pkpk severely drops oppose to taking it out. Curious as why this happened?
The clue is in its name If lm8833n resulting DC bias is a problem, there are 2 options: If a lower one would be used it will attenuate the signal at the output. What’s the datashete current spec on the 1mF cap?
To minimise the leakage it needs to be properly biased about half its rated voltage so that the electric field builds up the insulating layer by An oscilloscope is only connected to the output, i double checked, but its on the board board with many components on it, maybe that could be it?
Caps hold a charge voltage if there is no load. Capacitor allowing Datasjeet through? If the resulting DC bias is a problem, there are 2 options:. Home Questions Tags Users Unanswered.
TonyEErocketscientist You were rocket my datasheeg, adding a load fixed the offset issue. The reasoning I am using such a high value capacitor is due to it high pass nature it creature with the load, the higher I use the likely hood it will pass all the output signal to the output stage.
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But that makes a lot of more sense, thank you so much for shedding some light. Your last comment implies it has trouble even driving ohms, which is not very surprising. And what do you mean by VOM?
Increase the load to 2 kilohms. Voltage output swing is spec’ed in the datasheet for a load of 10, ohms figs 17, Post as a guest Name. Other parameters, for a load of 2 kilohms Power BW page 3, figs 6,7,8 and others.