Tektronix DG2020A, User Manual

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Appendix B: Performance Verification
BĆ6
DG2020A, P3410, & P3420 User Manual
Performance Tests for the DG2020A/Pod Combination
The items in this performance test are for the DG2020A in combination with a
pod. Perform these test items in the following order.
Internal clock frequency B-6 . . . . .
External clock input B-8 . . . . . . . .
Digital output B-9 . . . . . . . . . . . . .
External trigger operation B-12 . . . .
Event operation B-14 . . . . . . . . . . . .
This test confirms the frequency precision of the DG2020A internal clock.
With the PLL circuit on: Clock frequency 50 ppm
With the PLL circuit off: Clock frequency 3%
Required Equipment
Frequency counter
SMB-to-BNC cable
50
W
termination
N-to-BNC adapter
Performance check disk
Connections.
Connect the clock output from the DG2020A rear panel to the
frequency counter input (INPUT B) through the N-to-BNC adapter with the
SMB-to-BNC cable.
Figure BĆ3: Frequency measurement connections
Internal Clock Frequency