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Harmonics: CS5463 vs CS54xx

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741:
The only CS54xx datasheet mentioning harmonic measurement is the CS5463. I'm surprised just one chip in the series can measure/'deal with' harmonics(?).

SiliconWizard:
What do you mean? THD figures?

Is there anything more than THD figures in the CS5463 datasheet (haven't read ALL of it)?
I opened the DS for the CS5464, and it also gives THD figures. Is there anything more you were expecting, and that is present in the CS5463 datasheet (and that I missed)?

741:
The CS5463 has explicit harmonic registers eg "Harmonic Active Power Register"

SiliconWizard:
Didn't get that was what you were talking about. (That required reading details of the DS.)

Well, I don't know how we can answer your question really, just ask Cirrus?

That said, other parts of the line do measure apparent, active, reactive power, the power factor... that looks adequate for many uses in power supply monitors to me, so I'm not too surprised that the additional harmonic measurements are not available on all models.

What's your application and what would you use a specific harmonic active power measurement for?

ogden:

--- Quote from: 741 on March 05, 2020, 12:40:41 pm ---I'm surprised just one chip in the series can measure/'deal with' harmonics(?).

--- End quote ---
Yes. CS54xx is much more than just ADC. There's "power calculation engine" inside, most likely CPU core running some code.

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