751
Discussion - Drivers / Re: issue related to UM232H eval. board
« on: September 24, 2018, 10:13:30 AM »
Hello,
The signal may be degraded by rounding of edges and lowering of apparent amplitude if you have long connections or due to your scope probe. We recommend to use a high-frequency low-capacitance probe to measure the signal to ensure that what is shown on the scope is correct and that the probe itself does not affect the waveform by adding capacitance.
Some probes also have different characteristics depending on which mode they are in (e.g. 1x vs 10x). The probe used should have a frequency rating several times greater than the signal being measured and so generally a 200MHz or 300MHz probe is needed to see this signal accurately. Please check the datasheet of your probe to ensure that the 60MHz is well within its range.
Best Regards, FTDI Community
The signal may be degraded by rounding of edges and lowering of apparent amplitude if you have long connections or due to your scope probe. We recommend to use a high-frequency low-capacitance probe to measure the signal to ensure that what is shown on the scope is correct and that the probe itself does not affect the waveform by adding capacitance.
Some probes also have different characteristics depending on which mode they are in (e.g. 1x vs 10x). The probe used should have a frequency rating several times greater than the signal being measured and so generally a 200MHz or 300MHz probe is needed to see this signal accurately. Please check the datasheet of your probe to ensure that the 60MHz is well within its range.
Best Regards, FTDI Community