Comtech EF Data HPCST-5000 - Manual (Page 142)

Theory of Operation High-Power C-Band Satellite Terminal
6–16 Rev. 0
Refer to Figure 6-6 and Figure 6-7 for block diagrams of the down and up converter LO
synthesizers.
LOOP
FILTER
DIVIDE
BY
10 MHz REFERENCE
M&C BUS
LO REFERENCE
2120 MHz
SMA FEMALE
+7 dBm
SMA FEMALE
CMOS LEVELS
SQUARE WAVE
PHASE
DETECT
DIVIDE
BY N
VCO
FREQ
DOUBLER
D/C RF LO
4610 - 5190 MHz
SMA FEMALE
+8 dBm
D/C LO SYNTHESIZER
Figure 6-6. Down Converter Synthesizer Block Diagram
LOOP
FILTER
DIVIDE
BY
10 MHz REFERENCE
M&C BUS
LO REFERENCE
2120 MHz
SMA FEMALE
+7 dBm
SMA FEMALE
CMOS LEVELS
SQUARE WAVE
PHASE
DETECT
DIVIDE
BY N
VCO
FREQ
DOUBLER
U/C RF LO
4715 - 5295 MHz
SMA FEMALE
+8 dBm
U/C LO SYNTHESIZER
Figure 6-7. Up Converter Synthesizer Block Diagram