A SERVICE OF

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XRD9829REF
11
Rev. 1.00
RL
VRT
VRB
VDD
VIN0 - VIN2
XRD9829
C
I
S
VIN0
VIN3
5V
100K
34K
Figure 7. Simplified Block Diagram Showing Global Offset Adjustment by XRD9829
Using External Resistor Ladder
17. Set the dip switches to 0111000000 to select the internal offset DAC for fine offset
adjustment. Push the Serial Port button. From the CAPTURE menu select SNAP
SHOT. The offset should now move the output of the CIS to almost zero scale.
Please refer to data sheet for offset adjustment. A typical result of the fine offset
adjustment is shown below.