Hello,
i made some project with LDC1612 and my problem is that output data saturates. Here is graph with 100 samples:
Here are some config values:
- C tank:100nf, Fref=40MHz, Ftank~120kHz
- 2 channels, second channel is only use beacuse of 40MHz clock
- oscillating amplitude is ~1.4V
- RCOUNT and SETTLECOUNT for channel 0 are set to maxsimum (ENOB=20bits)
- RCOUNT and SETTLECOUNT for channel 1 are set to minimum
- clock dividers are set to 1
- amplitude correction off
- channel scan enable for 1 and 2
- CONFIG registers is written last
- reads data every 55ms
- deglitch filter is set to 1MHz
- automatic amplitude correction is disabled
- external source clock is set
What i am going wrong?
