Silicon Laboratories Si4827-DEMO User Manual

Si4827 D
Features
1.
 ATDD (analog tune and digital display) FM/AM/SW radio
 Worldwide FM band support from 64 MHz to 109 MHz with 5 default sub-bands:
FM1 87—108 MHz (Demo Board Default)

FM2 86.5—109 MHz

FM3 87.3—108.25 MHz

FM4 76—90 MHz

FM5 64—87 MHz (Demo Board Default)

 Worldwide AM band support from 504 to 1750 kHz with 5 default sub-bands
AM1 520—1710 kHz (Demo Board Default)

AM2 522—1620 kHz (Demo Board Default)

AM3 504—1665 kHz

AM4 520—1730 kHz

AM5 510—1750 kHz

 Worldwide SW band support from 2.3 to 28.5 MHz with 16 default sub-bands:
SW1 5.6—6.4 MHz (DEMO Board Default)

SW2 5.95—6.2 MHz

SW3 6.8—7.6 MHz (DEMO Board Default)

SW4 7.1—7.6 MHz

SW5 9.2—10 MHz (DEMO Board Default)

SW6 9.2—9.9 MHz

SW7 11.45—12.25 MHz (DEMO Board Default)

SW8 11.6—12.2 MHz

SW9 13.4—14.2 MHz (DEMO Board Default)

SW10 13.57—13.87 MHz

SW11 15—15.9 MHz (DEMO Board Default)

SW12 15.1—15.8 MHz

SW13 17.1—18 MHz (DEMO Board Default)

SW14 17.48—17.9 MHz

SW15 21.2—22 MHz (DEMO Board Default)

SW16 21.45—21.85 MHz

 Support wider FM/SW band range.
 Twelve positions slide switch or one push button for selecting different band according to the target
application.
 Two AAA battery operations with working voltage down to 2.0 V
 Economical potentiometer for frequency tuning replaces more expensive variable capacitor (PVC).
 Potentiometer and/or push button volume control
 FM 50 µs or 75 µs (default) de-emphasis
 9-level Bass/Treble via push button control for FM
 7-level Bass/Treble via push button control for AM/ SW
 FM/AM/SW band indicator and frequency display in LCD
 2×4 matrix keypad
 The frequency range of each band, De-emphasis and AM channel space can be re-configured by host
MCU.
Rev. 0.1 3/13
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