Description
This d
t and its contents are the property of CASSIDIAN
nd must not be copied or circul
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2.4.5.2.2 PA function
The PA function carries out (see Figure 2.11):
• the RF amplification function,
• the power slaving function,
• the monitoring function,
• the power supply function.
Figure 2.11
BLOCK DIAGRAM OF THE PA FUNCTION
PA FUNCTION
7 A
Power supply
Monitoring
SP FUNCTION
+ 28 V
CONVERTER
SP
FUNCTION
TRX
FUNCTION
DUPLEXER
(INSULATOR)
+ 5 V
+ 10 V
level
PA - ON
RF IN
+ 5 V
+ 10 V
RF Amplification
Slaving
t° alarm
P alarm
RF OUT
RF TEST
+ 5 V
+ 10 V
Vi
CTRL
Ps
Amp
cmd
Vs, SWR,
Vtemp
ext
SWR
40 dB
IDR-
IDO_
MC2_F
O
NCT
IO
N_PA
_S
YNO
P
_
01_0
2
48 V
