User guide

Si471x-EVB
12 Preliminary Rev. 0.4
4. Recommended Hardware Setup
Figure 12. Hardware Setup
Note: The EVB comes with a default jumper configuration that should be ready for evaluating the Si471x.
1. Connect the USB cable from PC to the EVB USB connector J79. The USB connection will serve as a dual purpose:
supplying the power to the EVB and controlling the EVB.
2. Connect an analog audio generator to the RCA input connector J7 using an RCA cable or connect an SPDIF digital audio
generator to connector J19 using an SPDIF cable.
3. Connect an RF analyzer from the FM output SMA connector J1 using an SMA cable.
Si471x
FM Transmitter
Daughterboard
RF
Analyzer
Analog
Audio
Generator
PC
w/ USB
port
J1
RCA IN
USB
FM
OUT
J7
J79
USB Cable
SMA Cable
RCA Cable
EXT pwr
USB pwr
EXT Jack
SW1
Terminal
Block (TB)
J76
J77
J44 J45
Jumpers
Setting
J41
TX
RX
TX
RX
DCLK
GPIO3
S/PDIF
Audio
Generator
J19
Note: J44 and J45 are
automatically configured
in EVB Rev1.3
Si471x
FM Transmitter
Baseboard