SI4827-A10 Datasheet, PDF (1/25 Pages) Silicon Laboratories – BROADCAST ANALOG TUNING DIGITAL DISPLAY AM/FM/SW RADIO RECEIVER

Si4827-A10
BROADCAST ANALOG TUNING DIGITAL DISPLAY
AM/FM/SW RADIO RECEIVER
Features
 Worldwide FM band support
 Minimal BOM components with no
(64–109 MHz)
manual alignment
 Worldwide AM band support
 Excellent real-world performance
(504–1750 kHz)
 China TV channels audio carrier
 SW band support (2.3–28.5 MHz)
reception in FM band
 Selectable support for all AM/FM/SW  2.0 to 3.6 V supply voltage
regional bands
 Wide range of ferrite loop sticks and
 Enhanced FM/SW band coverage
air loop antenna support
 2-wire control interface
 16-pin SOIC package
 Mono output
 RoHS compliant
 Valid station indicator
 Not EN55020 compliant *
 Digital volume support
 Bass/Treble support
*Note: For consumer applications that
require EN 55020 compliance, use
Si4844-B.
Applications
 Table and portable radios
 Boom boxes
 Clock radios
Description
 Modules for consumer electronics
 Toys, lamps, and any application
needing an AM/FM/SW radio
The Si4827 is an entry level analog-tuned digital-display digital CMOS AM/FM/SW
radio receiver IC that integrates the complete receiver function from antenna input
to audio output. Working with Host MCU (I²C-compatible 2-wire control interface),
frequencies information can be displayed on LCD while the analog-tune features
are kept. The Si4827 enhances the FM and SW band coverage, and further
supports China TV channels audio reception in FM band. The superior control
algorithm integrated in the Si4827 provides an easy and reliable control interface
while eliminating all the manual tuned external components used in traditional
solutions.
Functional Block Diagram
AM
ANT
FM
ANT
AMI
RFGND
FMI
XTALI
2.0~3.6V VDD
LNA
AGC
0/90
AFC
REG
XTAL
OSC
Si4^S8ⁱ⁴3⁸²0⁷/34
ADC
DSP
DAC
ADC
AOUT
ADC
CONTROL INTERFACE
TUNE1/2
BAND
Ordering Information:
See page 19.
Pin Assignments
Si4827-A10 (SOIC)
IRQ
1
TUNE1
2
TUNE2
3
BAND
4
NC
5
FMI
6
RFGND ⁷
AMI
8
16
AOUT
15
GND
14
VDD
13
XTALI
12
XTALO/LNA_EN
11
SCLK
10
SDIO
9
RST
This product, its features, and/or its
architecture is covered by one or more of
the following patents, as well as other
patents, pending and issued, both
foreign and domestic: 7,127,217;
7,272,373; 7,272,375; 7,321,324;
7,355,476; 7,426,376; 7,471,940;
7,339,503; 7,339,504.
Rev. 1.0 5/13
Copyright © 2013 by Silicon Laboratories
Si4827-A10