SI47XX-EVB Datasheet, PDF (99/164 Pages) Silicon Laboratories – Thank you for purchasing the Silicon Laboratories

Si47xx-EVB
Table 25. AM Receiver Window Descriptions (Continued)
# Name
Description
6 Status The RSSI indicator displays the RSSI of the signal in dBuV. The SNR indicator displays the SNR
of the received signal in dB. The varactor value specifies the capacitance of the tuning front-end.
A value of 6143 means that the maximum capacitance is being presented at the AM input and a
value of 1 means that the varactor is at its minimum value. The AGC Index indicator displays the
AGC status. The Soft Mute indicator displays the estimated attenuation applied to the signal
based on RSSI and SNR values.
7 Function, The Function buttons are used to boot up the device in different mode.
Band Using the Band Selection drop down box, you can select different AM, LW, or SW bands. The
Selection drop down box will only appear with LW or SW enabled device. If an SW band is selected using
the SW/WB Antenna Card, set the varactor to 1 for best performance. LW not support with SW/
WB Antenna Card.
Rev. 0.8
99