Atec Agilent-8563E - Manual (Page 119)

Adjustments ESG Family Signal Generators
FM/PM Out-of-Band Calibration (ESG-AP and ESG-DP only)
5-22 Calibration Guide
FM/PM Out-of-Band Calibration (ESG-AP and ESG-DP
only)
Description
This adjustment calibrates the FM/PM out-of-band paths on the Fractional-N and YO
driver modules. The internal ABUS is connected to the phase lock loop integrator node on
each board, and the attenuators and DAC are adjusted to minimize the voltage. This
ensures that the in-band and out-of-band paths are matched. The
“FM In-Band DAC
Offset Calibration” on page 5-15 must be performed prior to this adjustment.
Required Test Equipment
• HP/Agilent 3458A Digital Multimeter
• HP/Agilent 33120A 15 MHz Function/Arbitrary Waveform Generator
Procedure
Figure 5-18 FM/PM Out-of-Band Calibration Setup
1. Connect the equipment as shown above.
2. Preset all of the equipment.
3. Follow the instructions as they appear on the controller’s display.