Keysight EXG and MXG X-Series Signal Generators User’s Guide 305Digital Signal Interface Module (Option 003/004)Operating the N5102A Module in Output Mode5. Select the numeric format required for the test.6. Press the More (1 of 2) softkey.From this softkey menu, select the bit order, swap I and Q, select the polarity of thetransmitted data, and access menus that provide data negation, scaling, gain, offset, and IQrotation adjustments.7. Press the Data Negation softkey.Negation differs from changing the I and Q polarity. Applied to a sample, negation changes theaffected sample by expressing it in the two's complement form, multiplying it by negative one,and converting the sample back to the selected numeric format. This can be done for Isamples, Q samples, or both.The choice to use negation is dependent on the device being tested and how it needs toreceive the data.8. Press the Gain, Offset & Scaling softkey.Use the softkeys in this menu for the following functions:— reduce sample values for both I and Q using the Scaling softkey— increase or decrease the sample values independently for I and Q using the I Gain and QGain softkeys— compensate for or add a DC offset using the I Offset and Q Offset softkeys— rotate the data on the IQ plane using the Rotation softkey9. Make any required scaling, gain, offset, or rotation adjustments to properly test the device.10.Press Return > Return to return to the first-level softkey menu.Configuring the Clock Signal1. Refer to Figure 10-14. Press the Clock Setup softkey.Figure 10-14 Clock Setup Menu LocationAccesses theClock Setup Menu
