Si4830
Broadcast Mechanical Tuning AM/FM Radio Receiver
Description
Features
The Si4830 is the first wheel-tuned digital CMOS AM/FM
radio receiver IC that integrates the complete receiver
function from antenna input to audio output. Leveraging
Silicon Laboratories' proven and patented digital low
intermediate frequency (low-IF) receiver architecture, the
Si4830 delivers superior RF performance and interference
rejection in both AM and FM bands. Additionally, the digital
core provides advanced audio conditioning for all
environments, removing pops, clicks, and loud static in
variable signal conditions. The superior control algorithm
integrated in Si4830 provides easy and reliable control
interface while eliminating all the manual tuned external
components used in traditional solutions.
- Worldwide FM band support (64–108 MHz)
- Worldwide AM band support (520–1710 kHz)
- Selectable support for all AM/FM regional bands
- Wheel-tuned / Mechanical-tuned frequency support
- Mechanical volume control + off/on
- Excellent real-world performance
- Digital radio with leading low-IF architecture
- Automatic frequency control (AFC)
- Stereo/mono + tuning and stereo indicator
- EN55020 compliant
- Minimal BOM components w/ no manual alignment
- No external MCU required
- Two AAA batteries with 2.0 to 3.6 V supply voltage
(T = 25° C)
- Wide range of ferrite loop sticks and air loop antennas
- 24-pin SSOP package
- RoHS compliant
Applications
Like other successful audio products from Silicon Labs,
Si4830 offers unmatched integration and PCB space
savings with minimum external components and less than
2
20 mm of board area, excluding the antenna inputs. The
- Table and portable radios
high integration and complete system production test
simplifies design-in, increases system quality, and
improves manufacturability. The receiver has very low
power consumption, runs off two AAA batteries, and
delivers the performance benefits of digital tuning to the
legacy analog radio market.
- Stereos
- Mini/micro systems
- Boomboxes
- Clock radios
- Modules
- Entertainment systems
- Toys, lamps, and any application needing an AM/FM
radio
Si4830
ADC
ADC
DAC
AMI
LOUT
ROUT
AM
ANT
LNA
DSP
RFGND
DAC
FM
ANT
AGC
FMI
0/90
TUNE1/2
XTALO
CONTROL
INTERFACE
AFC
REG
XTALI
2.0~3.6V
STEREO
STATION
VDD
XTAL
OSC
AM/FM Receiver
Copyright © 2010 by Silicon Laboratories
2.24.2010
Download from Www.Somanuals.com. All Manuals Search And Download.
|