I'm trying to get started with the EVAL-AD5933EB. The results are not what I expected.
The settings I used:
Start freq 100Hz
Delta freq 100Hz
# incr 100
# settling times 15
MCLK 16M External clock provided on eval board
Resistor only R1 calibration
The following 4 measurements are performed:
1) "calculate gain factor" with 200K (on C41) and then "start sweep" Gain factor:5.109E-10 -> result = +- 200K
2) 99K1 (on C41) "start sweep" -> result = +- 113K to high
3) "calculate gain factor" with 99K1 (on C41) and then "start sweep" Gain factor: 5.836E-10 -> result = +- 99K1
4) 200K (on C41) "start sweep" -> result = +- 170K to low
I would expect that the gain factors would match?
Can somenone point me out what I'm doing wrong?