Figure 178: Br-Arch-1 Base Radio - Functional Block Diagram - Motorola MTS LiTE Installation, Configuration And Basic Service Manual

Figure 178: BR-Arch-1 Base Radio – Functional Block Diagram
RJ45
RJ45
RJ45
RF1
RF2
DC-
RX front end
inj.
RF3
RX Metering
and control
Transceiver/Controller Board
PA board
Forward/
reverse
power
meter
7V
Conv.
7V 28V
12V
Conv.
28V
7V+28V
Supply
CPLD
CP2 Circuit
Ethernet
RS232+ trig In/Out
RX I&Q
RX I&Q
RX Back end
RX I&Q
Abacus III
Synthesizer
16.8MHz
PLL
SPI
TX I&Q
Exciter
Interface
Metering
and control
Baseband
TOMAHAWK
filter
Feedback
Circulator
Coupler
12V
7V,28V
Flash RAM
BUS
Interface
SPI
FPGA
16.8MHz
Osc.
Synthesizer
PLL
JAVELIN
Driver
PA Driver
PA Metering
and control
6802800U74-AN
Chapter 10: Base Radio
Host
MPC8250COM
Trig In/Out
DSP
MSC8101
SPI
Supply
&Ctrl
7V,12V,28V
Exc.
Pwr
Out
Detector
Exc.
In
Variable
PA
Att.
feed
back
Variable
PA
Att.
in
SPI
Supply
&Ctrl
321