Other Parts Discussed in Thread: SN74AVC16T245, ADS4222, FMC-ADC-ADAPTER
As titled, I want to test ADS4222EVM without TSW1400.
I've check the jumper settings and all of them are in the correct (default) positions.
But I'm not sure with the input clock spec, such as waveform, frequency, offset, ...,etc.
The highest frequency I can get from my signal generator is 25MHz.
If this frequency is acceptable, how much is the consumed current ?
The user guide says that clock amplitude should be 0.6Vrms (approximately 0.8Vpp), but did not mention about waveform and offset.
Should I use square wave or sine wave signal ? And how much offset is appropriate ?
I want to use test patterns to verify the LVDS output, and I used the ADS42xx_58C28 GUI to program the serial interface register map.
I enabled the digital function and set the test patterns of both channel to be alternating (or digital ramp).
Are there any other necessary setting items ?
Last question, can I measure LVDS output directly on the connectors J1 and J2 ?
I tried to do so but didn't see any waveform on oscilliscope.
Thanks a lot for helping me out.