Please teach the ripple frequency of AD215.
Please teach two the following item respectively.
1. RATED OUTPUT
2. ISOLATED POWER OUTPUT
I found only ripple voltage.
According to our product expert the specification for the “Rated Output Ripple” is primarily caused by the internal switching of the modulator / demodulator circuit. The output signal will generally see a spike at the rising and falling edges of the clock internal to the AD215 module.
For the Isolated Power Output Ripple specification, it is a ripple seen on the generated Isolated Input Power supplies. This ripple is also affected by the amount of a load that is placed on the Isolated Power supplies. Figure 9 in the AD215 datasheet shows some typical values of this ripple with various bypass capacitors added to the Isolated Power supply pins of the module.
Thanks your response.
Please teach this in detail.
I think that internal switching of the demodulator frequency is 430KHz from data sheet P4.
But, I do not understand the frequency of internal switching of the modulator .
Cannot ripple frequency of RATED OUTPUT be indicated though the above-mentioned is a specification of an internal circuit?
2.ISOLATED POWER OUTPUT
It apologizes when my description is not understood easily.
I would like to teach me Pin5 and Pin6.
Sorry,please teach not the size of ripple but the frequency of ripple.
Is this frequency 430KHz?
There is only one internal clock frequency running about 430 kHz. The majority of the noise will be resultant from the clock switching. These noise spikes are primarily seen on the Rising and Falling edges of the internal clock and it can be filtered with a low pass filter. For the Rated Output, there are two specifications, one that assumes a 1 MHz low pass filter and the one with a 50 kHz low pass filter.
Does this answer your question?
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