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SI4820-DEMO Datasheet, PDF (1/10 Pages) Silicon Laboratories – Si4820/24 DEMO BOARD USER’S GUIDE | |||
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Si4820/24-DEMO
Si4820/24 DEMO BOARD USERâS GUIDE
1. Features
ï®ï ATAD (analog tune and analog display) AM/FM/SW radio
ï®ï Worldwide FM band support from 64â109 MHz with 5 sub-bands:
ï¬ï FM1 87â108 MHz (Demo Board Default)
ï¬ï FM2 86.5â109 MHz
ï¬ï FM3 87.3â108.25 MHz
ï¬ï FM4 76â90 MHz
ï¬ï FM5 64â87 MHz (Demo Board Default)
ï®ï Worldwide AM band support from 504â1750 kHz with 5 sub-bands
ï¬ï AM1 520â1710 kHz (Demo Board Default)
ï¬ï AM2 522â1620 kHz (Demo Board Default)
ï¬ï AM3 504â1665 kHz
ï¬ï AM4 520â1730 kHz
ï¬ï AM5 510â1750 kHz
ï®ï Worldwide SW band support from 5.6â22 MHz with 16 sub-bands:
ï¬ï SW1 5.6â6.4 MHz (DEMO Board Default, for Si4824 only)
ï¬ï SW2 5.95â6.2 MHz
ï¬ï SW3 6.8â7.6 MHz (DEMO Board Default, for Si4824 only)
ï¬ï SW4 7.1â7.6 MHz
ï¬ï SW5 9.2â10 MHz (DEMO Board Default, for Si4824 only)
ï¬ï SW6 9.2â9.9 MHz
ï¬ï SW7 11.45â12.25 MHz(DEMO Board Default, for Si4824 only)
ï¬ï SW8 11.6â12.2 MHz
ï¬ï SW9 13.4â14.2 MHz (DEMO Board Default, for Si4824 only)
ï¬ï SW10 13.57â13.87 MHz
ï¬ï SW11 15â15.9 MHz (DEMO Board Default, for Si4824 only)
ï¬ï SW12 15.1â15.8 MHz
ï¬ï SW13 17.1â18 MHz (DEMO Board Default, for Si4824 only)
ï¬ï SW14 17.48â17.9 MHz
ï¬ï SW15 21.2â22 MHz (DEMO Board Default, for Si4824 only)
ï¬ï SW16 21.45â21.85 MHz
ï®ï Twelve positions band switch for selecting different band according to the target market.
ï®ï Two AAA battery operations with working voltage down to 2.0 V
ï®ï Economical potentiometer for frequency tuning replaces more expensive variable capacitor (PVC).
ï®ï Potentiometer and/or push button volume control
ï®ï FM 50 µs or 75 µs (default) de-emphasis
2. Overview
This manual describes the operation of the Silicon Labs Si4820/24-DEMO board Rev1.0, Sep 02, 2011. The
Silicon Laboratories Si4820/24-DEMO board is designed with the 24-pin SSOP packaged Si4820/24 chip, the
revolutionary single chip AM/FM/SW receiver that integrates everything from antenna input to audio output and
allows use of common and economical potentiometers to do the frequency tuning. It provides a complete portable
analog tune analog display AM/FM/SW radio design. The Si4820/24-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.
Rev. 0.1 10/11
Copyright © 2016 by Silicon Laboratories
Si4820/24-DEMO
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