SI4840-DEMO Datasheet, PDF (4/22 Pages) Silicon Laboratories – Si4840/44 DEMO BOARD USERS GUIDE

Si4840/44-DEMO
S12: FM antenna selection
1
2
3
1-2 BNC (J1)
2-3 HP ANT (J5)
Radio Band selection:
The Demo board provides 2 methods to select the radio band. One is to use the slide switch (S2); the other is to
use the POWER/BAND push button. S14 determines which method is in use.
S14:
3
2
1
2-3: Use slide switch to select band
1-2: Use push button to select band
Radio Band Property setting:
S13:
1
2
3
1-2: Use the keypad to set the band property via MCU
2-3: Use the tuner default band setting values
4
Rev 0.1