Si4822/26-DEMO

Rev. 0.1

5

Radio Band Property Setting:

S13:

Audio Output Test Point:

For the general specification test, TP3 is the recommended audio signal test point. The audio test instrument

should be connected to TP3 to get more accurate test results. J5 can also be used as an audio test point, but the

test results may not be entirely accurate under some circumstances.

Main Components:

U1: Silicon Laboratories Si4822/26 AM/FM/SW ATDD receiver

U2: Audio amplifier

U3: MCU

LCD: The digital display of tuning frequency

3

2

1

1-2: Use the keypad to set the band propery via MCU

2-3: Use the tuner default band setting values

2

1GND

AOUT