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SI47XX-EVB Datasheet, PDF (109/164 Pages) Silicon Laboratories – Thank you for purchasing the Silicon Laboratories
Si47xx-EVB
9. Using the EVB with a 9 V Battery
The EVB can be used with a 9 V battery that allows the user to disconnect the board from the computer for
evaluating the Si47xx. Follow the guidelines listed below to use your EVB with a 9 V battery.
1. Put the switch SW1 in the Ext/Battery position.
2. Connect a 9 V battery to jumper J77.
3. Connect the USB cable.
4. Launch the GUI.
5. Initialize the EVB for AM or FM reception.
6. Once the desired station is tuned and all the settings for the receiver are according to the user's liking,
please exit the GUI.
7. When asked whether to leave the device on, please click on yes.
8. Remove the USB cable.
9. The EVB can now be moved around.
Note that once the EVB is using its 9 V battery, it is not possible to change the tuned station. Repeat steps 3–9 to
tune the EVB to a different station while running on the 9 V battery.
Rev. 0.8
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