UG-1828 Preliminary Technical Data
Rev. PrC | Page 10 of 338
ADRV9001 EXAMPLE USE CASES
The intention of this section is to provide the reader with the overall idea how ADRV9001 integrated transceiver can operate as an RF
front end in different applications. The provided list is not exhaustive, and there are other applications in which the ADRV9001 can serve.
Each example is accompanied with a table that explains the main limitations and highlights what the customer should look for when
implementing the ADRV9001 in the end application.
ADRV9001 IN A SINGLE-BAND 2RT2R FDD TYPE SMALL-CELL APPLICATION
Figure 3. ADRV9001 in Single-Band 2T2R FDD Type Small Cell Application
With a minimum number of external components, the ADRV9001 transceiver can be used to build complete RF to bits signal chains that
can serve as the RF front end in small cell type applications. The ADRV9001 dual Rx and Tx signal chains allow the user to implement
MIMO or diversity in their system. The ADRV9001 internal AGC can be used to autonomously monitor and set appropriate gain levels
for Rx signal chains. For non-time critical FDD type applications, control of the ADRV9001 TRx can be done through API commands
that use the SPI interface.
SPI
RESET
DEV_CLKL_OUT
MCS
DEV_CLK
DGPIOs
Rx/Tx_ENABLE
GP_INT
VGA
BPF FILTER
LNA
PA
LPF
BPF FILTER
LNA
ATTENUATOR
COUPLER
DUPLEXER
DUPLEXER
ANTENNA A
ANTENNA B
A
B
B
A
VCXO
BALUN
BALUN
BALUN
BALUN
BALUN
POWER IC
BALUN
BALUN
/2
SSI
DAC
BALUN
BALUN
VGA
PA
LPF
ATTENUATOR
COUPLER
FUNCTIONALITY
RF RECEPTION (DIVERSITY/MIMO)
USED BY Tx1 INIT CALIBRATIONS
RF RECEPTION (DIVERSITY/MIMO)
USED BY Tx2 INIT CALIBRATIONS
RF TRANSMISSION (DIVERSITY/MIMO)
RF TRANSMISSION (DIVERSITY/MIMO)
RF I/O
Rx1A
Rx1B
Rx2A
Rx2B
Tx1
Tx2
ADRV9001
FPGA
OR
BBP
VDDA_1P0
VDDA_1P3
VDDA_1P8
VDD_1P0
VDD_1P8
RF PLL2
RF PLL1
/2
EXT LO2
EXT LO1
Tx1
Rx1A
Rx1B
Rx2A
Rx2B
Tx2
INT
QEC
LOL
Tx1
DATA
ADC
DDC
DEC
QEC
DC
SSI
Rx1
DATA
ADC
DDC
DEC
QEC
DC
SSI
Rx2
DATA
SSI
DAC
INT
QEC
LOL
Tx2
DATA
AuxDACAuxADCAGPIOs
3/4/6/7/8/10
3/6/8
12/16
4
3/4
3/6/8
3/4/6/7/8/10
24159-003