Fluke 5520A Service Manual page 154

5520A
Service Manual
A6
DDS
External
Clock In
6-14
50
Time Mark II
LF Mux.
Analog Shaped
2 s - 10 s
Time Mark III
Pulse Shaped
20 s - 1 s
Leveled Sine Wave
and Time Mark IV
Unleveled
Leveled
PLLs
Pwr Amp.
Leveling Loop
Edge
Level
10 MHz Clock
Figure 6-1. SC600 Block Diagram
LF PWB
Trigger
%1,10,100,1000
HF PWB
Step Attenuator Module
HF Mux.
pp detect
HF Mux.
A4 SC600 Option
Oscilloscope
Calibrator
Trigger BNC
SCOPE
Output BNC
om031f.eps