IC-MQ_15 Datasheet, PDF (39/43 Pages) IC-Haus GmbH – Sin/Cos INTERPOLATION IC WITH RS422 DRIVER

iC-MQ PROGRAMMABLE 9-BIT
Sin/Cos INTERPOLATION IC WITH RS422 DRIVER
Signal Conditioning Example 2:
Rev F3, Page 39/43
Encoder supplying 100 mVpp to voltage inputs
Step
1.
2.
Operating Mode
Calibration 2
3.
Calibration 2
4.
System Test
Calibration and Signal
Presets
VOS12= 0x1, GF1= 0x40, OF1= 0x0, GF2= 0x10, OF2= 0x0
Calibration of Channel 1:
Parameter GR12: Adjust diff. signal at PA vs. NA to approx. 500 mV amplitude
Parameter GF1: Adjust diff. signal at PA vs. NA to exactly 500 mV amplitude
Parameter OR1, OF1: Calibration of DC fraction to zero for diff. signal PA vs. NA (< 5 mVdc)
Calibration of Channel 2:
Parameter GF2: Adjust diff. signal at PB vs. NB to exactly 500 mV amplitude
Parameter OR2, OF2: Calibration of DC fraction to zero for diff. signal PB vs. NB (< 5 mVdc)
Calibration of Channel 1 vs. Channel 2:
Parameter OF1: Adjust duty ratio of A₄ at PA to 50 %
Parameter OF2: Adjust duty ratio of B₄ at PB to 50 %
Parameter PH12: Adjust duty ratio of A₈ at NA to 50 %
Parameter GF1: Adjust duty ratio of B₈ at NB to 50 %
Table 65: Conditioning example 2