Tektronix AWG7000 Series, Service Manual

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Adjustment Procedures
3-18
AWG7000 Series Service Manual
9. Identify the minimum amplitude (ripple) point for the Ch1 waveform on the
sampling oscilloscope screen while changing the
Ch2 HFD205 Phase settings
using either the up/down button or the front-panel rotary knob. You can also
enter the value directly using the keyboard.
The Skew for each sampling rate is calculated automatically using the
Inter-Channel Skew Cal. results, and the skew values are displayed in the
Skew5G through Skew10G fields.
10. Stop at the minimum ripple point, and select 6.0 GHz in the Sampling Rate.
11. Repeat step 9.
12. Stop at the minimum ripple point, and select 7.0 GHz in the Sampling Rate.
13. Repeat step 9.
14. Stop at the minimum ripple point, and select 8.0 GHz in the Sampling Rate.
15. Repeat step 9.
16. Stop at the minimum ripple point, and select 9.0 GHz in the Sampling Rate.
17. Repeat step 9.
18. Stop at the minimum ripple point, and select 10.0 GHz in the Sampling Rate.
19. Repeat step 9.
20. Stop at the minimum ripple point, and click Update Cal Values .
21. Click Save to EEPROM .
22. Click Close . The Interleave Calibration window closes.
23. Click Exit in the Service UI menu.
This completes the adjustment procedures. Disconnect the equipment from the
instrument.
NOTE.
Ideally, the skew should not depend on the frequency, but there is a slight
dependency between skew and frequency.