[SI-LIST] How could I set the oscilloscope to measure voltage ripple of chip properly?
- From: 임상호 <sangho1.lim@xxxxxxxxxxx>
- To: si-list <si-list@xxxxxxxxxxxxx>
- Date: Thu, 15 Nov 2012 08:24:14 +0000 (GMT)
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Dear follow SI-LIST members,
I would like to measure exact voltage ripple of chip.
If we set the oscilloscope with wide bandwidth, the voltage ripple becomes
larger.
What is the criterion of bandwidth or cutoff frequency for measuring voltage
ripple of chip?
If we have to consider the operating frequency of chip, we need to set
several GHz.
But, I just wonder the several GHz voltage ripple noise can affect the chip
operation.
If not, we don¡¯t need to consider the voltage ripple noise of high
frequencyrange.
Please let me know your opinion.
Thanks
Sangho Lim
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