SI4840-DEMO Datasheet, PDF (2/22 Pages) Silicon Laboratories – Si4840/44 DEMO BOARD USERS GUIDE

Si4840/44-DEMO
2. Overview
This manual describes the operation of the Silicon Labs Si4840/44-DEMO board, Rev 1.3, June 30, 2011. The
Silicon Laboratories Si4840/44 DEMO board is designed with the 24-pin SSOP-packaged Si4840/44 chip, the
revolutionary single chip AM/FM/SW receiver that integrates everything from antenna output to audio input and
allows use of common and economical potentiometers to do the frequency tuning. It provides a complete portable
analog tune digital display AM/FM/SW radio design. The LCD displays the tuning information. The Si4840/44-
DEMO is designed with 1-layer PCB, allowing the lowest cost without sacrificing the RF performance. The demo
board works with two AAA batteries and working voltage down to 2.0 V.
3. Description
Figure 1 and Figure 2 show the physical layout of the board with key components indicated.
Figure 1. Si4840/44-DEMO Board Top Side in Time Mode
2
Rev 0.1