Hello Team,
We are using the ADC12DJ5200RFEVM board with TSW14J57(rev. E) board set to JMODE1 (10.4 GSPS). We have some questions regarding calibration procedure:
- Does Background calibration work without Foreground calibration enabled?
For example, after resetting device registers and reprogram Clocks and ADC (on GUI “EVM” tab) with such settings:
we got the following results:
As you can see DC offset is not calibrated, there is some noise on a base line.
- We observe DC offset fluctuation with background calibration enabled with such settings:
Result:
Is such DC offset fluctuation is normal? Any possibility to eliminate fluctuation and achieve stable DC offset calibration with background calibration enabled?
Thanks,
Vasily