User's Manual

ENU STATUS : 1-0-0
Copyright - refer to title page
Page 15
INSTALLATION GUIDE FOR RX-7W22, II2
MCU
Master Di gital Boar d
30.72MHz
12.8MHz
PLL1
RX_1
2
TX_2
30d
B
1
ADC
AMP
UL_PA
AMP
UL_LNA
AMP
DAC
800UL
20dB
FPGA
TX_1
RX_2
AMP
DAC
AMP
AMP
DL_PA
DL_LNA
ADC
RX
RTC
RX
700&800UL
AD9370_1
32.768MHz
AD9370_0
ORX1
FB
30.72MHz
12.8MHz
FB
FS
-30 dB
MT
TX
800DL
800DL
30.72MHz
12.8MHz
PLL3
Slave Digital Board
TX
700DL
700DL
TX
RX_
1
30d
B
TX_2
ADC
DAC
700UL
20dB
FPGA
数字
A TT
TX_
1
RX_2
AMP
DAC
ADC
AMP
AMP
DL_LNA
DL_PA
30dB
700DL
模拟
A TT
10dB
30.72MHz 12.8MHz
2 EQUIPMENT DESCRIPTION
2.1 FUNCTIONAL BLOCK DIAGRAM
AD9370_1
25MHz
MCU
RTC
32.768MHz AD9370_0
PLL4
Figure 2: PS BDA Functional Block Diagram
In the downlink path, the BTS signals are received by the donor antenna of the repeater. After the duplexer,
the signals are sent to the LNA module for pre-amplification and to the digital RF integrated module for digital
filtering and frequency conversion. Then the DL signals will be sent to the downlink PA to amplify power, and
filter via the duplexer. After amplification, the signals are transmitted at the MT port to the service antenna.
In the uplink path, the mobile signals are received by the service antenna. After the MT port integrated duplexer,
the signals are sent to the LNA, integrated module for digital filtering, then to the PA for power amplification
and to the duplexer. After that, the uplink signals are sent to the donor antenna for transmission back to the
BTS.
-
30dB