Texas Instruments AFE7222 Evaluation Module AFE7222EVM AFE7222EVM Datenbogen
Produktcode
AFE7222EVM
DAC A
SMA
Connector
R46 0
S
DAC B
R133
DNI
TRF3703
LO
RF Out
Fc=125 MHz
R56 0
S
R127
DNI
SMA
Connector
SMA
Connector
SMA
Connector
R114
DNI
R120
DNI
R58 0
S
R68 0
S
TX Setup
Figure 12. AFE722x Schematic
When using the TSW1400 as a pattern generator for the AFE722x,
first the digital interface needs to be configured to match the serial
LVDS interface from the TSW1400.
first the digital interface needs to be configured to match the serial
LVDS interface from the TSW1400.
The following control registers need to be set in the General Setup
tab of the AFE722x programming software.
tab of the AFE722x programming software.
The USB communication warning sign should also be monitored after
the USB reset to ensure proper communication with the AFE722x
EVM.
the USB reset to ensure proper communication with the AFE722x
EVM.
Register Bit
Setting
Interface
Serial LVDS
Master Override
Enabled
Serial LVDS
2 Wire
Data Orientation
MSB First
Format
2s Complement
Clock Delay
Enabled
Clock Delay
300 ps
Frame Clock Delay
Disabled
Frame Clock Delay
0 ps
16
AFE722x Evaluation Module (AFE722xEVM) User's Guide
SLOU362 – February 2013
Copyright © 2013, Texas Instruments Incorporated