User guide

Software Tools
EV10AQ190x-DK - User Guide 4-23
1067BX–BDC–12/11
In this window, it is possible to re-adjust the internal input resistor, which should be
matched to 50. The procedure is similar to the previous ones:
 select the channel where you need to adjust the input impedance
 check that the channel is ON and READY (green LEDs)
 enter the resistor value
 push the WRITE button to write these values to the internal registers (you can retrieve
the initial value of the impedance by clicking on the CANCEL button)
Figure 4-42. Input Impedance Write Sequence
This function helps to re-adjust the input impedance in case of a slight mismatch due to
temperature variations or process variations.