Comtech EF Data CST-5000 - Manual (Page 104)

CST-5000 C-Band Satellite Terminal Theory of Operation
Rev. 9 5–15
LOOP
FILTER
D/C LO SYNTHESIZER
VCO
PHASE
DETECT
DIVIDE
BY
10 MHz REFERENCE
M&C BUS
LO REFERENCE
2120 MHz
SMA FEMALE
+7 dBm
SMA FEMALE
CMOS LEVELS
SQUARE WAVE
DIVIDE
BY N
FREQ
DOUBLER
D/C RF LO
4610 TO 5190 MHz
SMA FEMALE
+8 dBm
Figure 5-6. Down Converter Synthesizer Block Diagram
LOOP
FILTER
U/C LO SYNTHESIZER
VCO
PHASE
DETECT
DIVIDE
BY
10 MHz REFERENCE
M&C BUS
LO REFERENCE
2120 MHz
SMA FEMALE
+7 dBm
SMA FEMALE
CMOS LEVELS
SQUARE WAVE
DIVIDE
BY N
FREQ
DOUBLER
U/C RF LO
4715 TO 5295 MHz
SMA FEMALE
+8 dBm
Figure 5-7. Up Converter Synthesizer Block Diagram