SI4844-B-DEMO Datasheet, PDF (1/18 Pages) Silicon Laboratories – Si4844-B DEMO BOARD USERS GUIDE

Si4844-B-DEMO
Si4844-B DEMO BOARD USER’S GUIDE
1. Features
ATDD (analog tune and digital display) FM/AM/SW radio
Worldwide FM band support from 64 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 kHz 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 22 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
Supports wider FM/SW band range
Twelve positions slide switch or one push button for selecting different bands 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 5/13
Copyright © 2016 by Silicon Laboratories
Si4844-B-DEMO