SI47XX-EVB Datasheet, PDF (29/164 Pages) Silicon Laboratories – Thank you for purchasing the Silicon Laboratories

3.2. Hardware Setup for FM or Weather Band Receiver Test
Si47xx-EVB
RF
Generator
SMA Cable
Audio
Analyzer
RCA Cable
J28 or J26
FM IN
Si47xx
Daughterboard
J6
RCA OUT
J7
RCA IN
J19
Optical
Cable
Jumpers
Setting
DCLK
TX
TX
GPIO3
J41
RX
RX
J44 J45
Note: J44 and J45 are
automatically configured in
EVB Rev1.3 and later
S/PDIF
OUT
J30
Si47xx
Baseboard
J76
USB
SW1
EXT pwr
Terminal
Block (TB)
J79
USB Cable
USB pwr
J78
EXT Jack
PC
w/ USB
port
Figure 20. Hardware Setup for FM/Weather Band Receiver Test
Instructions for Si4704/05/06/2x/3x/8x daughtercards:
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 audio analyzer from the RCA output connector J6 using an RCA cable.
3. Connect an RF generator to the FM input SMA connector J28 or J26 using an SMA cable.
4. Connect an audio analyzer to the S/PDIF output connector, J30, using an optical cable.
5. To avoid possible sources of interference, please remove C9 or C12 (depending on the daughtercard). This will
disconnect the headphone circuit from the test circuit.
6. J19 and J30 S/PDIF connections are no longer supported on EVBs as of February 14, 2011.
Rev. 0.8
29