User's Manual

68P80801E35-B 5/1/2002 51
EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios
Base Radio Controller
Figure 15 Enhanced Base Radio Controller Functional Block Diagram
(Sheet 1 of 2)
Enhanced Base Radio Controller
Functional Block Diagram
Model CLN1653A
BASE
RADIO
POWER
EXCITER
PA CTL RX1 RX2 R3
P0 OUT
LED
CONTROL
LINES
HOST
LATCH
12
FRONT PANEL LEDS
REMOTE STATION
28V
P0_OUT
SHUTDOWN
CIRCUITRY
SHUTDOWN
(TO POWER
SUPPLY)
SHUTDOWN CIRCUITRY
SYNTHESIZER
IC / CIRCUITRY
5MHZ_1PPS
BASE RADIO
INPUT
HIGH
STABILITY
VCXO
PHASE
DETECTION/
FILTERING/
CONTROL
STEARING
LINE
DISCONNECT/
CONNECT
CONTROL
G
A
T
I
N
G
SPI
BUS
16.8 MHZ
STATION REFERENCE CIRCUITRY
5MHZ
1PPS
SUPPLY