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Si4731-D50 Datasheet Preview

Si4731-D50 Datasheet

BROADCAST AM/FM RADIO RECEIVER

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Si4730/31-D50
BROADCAST AM/FM RADIO RECEIVER
Features
Worldwide FM band support
(64–108 MHz)
Worldwide AM band support
(520–1710 kHz)
Excellent real-world performance
Integrated VCO
Advanced AM/FM seek tuning
AM/FM digital tuning
Automatic frequency control (AFC)
Automatic gain control (AGC)
Digital FM stereo decoder
Programmable AVC max gain
Programmable de-emphasis
Seven selectable AM channel filters
Advanced audio processing
No manual alignment necessary
Programmable reference clock
Volume control
Adjustable soft mute control
RDS/RBDS processor (Si4731 only)
I2S digital audio out
2-wire and 3-wire control interface
Integrated LDO regulator
Wide range of ferrite loop sticks and
air loop antennas supported
QFN package
RoHS compliant
Not suitable for wall-plugged
consumer electronic applications*
*Note: For consumer electronics applications, use Si4730/31-D60 for worldwide
CE and EN compliance.
Applications
Cellular handsets
MP3 players
Portable navigation
Description
Mobile Internet Devices Tablets
USB FM radio
eBooks
The Si4730/31-D50 is the fourth generation digtial CMOS AM/FM radio receiver
IC from Silicon Labs. The Si4730/31-D50 integrates the complete tuner function
from antenna input to audio output.
Functional Block Diagram
AMI
AM
ANT RFGND
FM
ANT
FMI
2.7– 5.5 V VA
GND
LNA
AGC
LNA
AGC
LDO
Si473x
RDS
(Si4731)
LOW-IF
DIGITAL
AUDIO
DOUT
DFS
GPO/DCLK
ADC DAC
DSP
ADC DAC
ROUT
LOUT
AFC
CONTROL
INTERFACE
VD
1.62–3.6 V
Ordering Information:
See page 26.
Pin Assignments
Si4730/31
NC 1
FMI 2
RFGND 3
AMI 4
RST 5
6
20 19 18 17
GND
PAD
7 8 9 10
16
15 DOUT
14 LOUT
13 ROUT
12 GND
11 VA
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 2/11
Copyright © 2011 by Silicon Laboratories
Si4730/31-D50




Silicon Laboratories

Si4731-D50 Datasheet Preview

Si4731-D50 Datasheet

BROADCAST AM/FM RADIO RECEIVER

No Preview Available !

Si4730/31-D50
2 Rev. 1.0


Part Number Si4731-D50
Description BROADCAST AM/FM RADIO RECEIVER
Maker Silicon Laboratories
Total Page 30 Pages
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