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SI4735-C40-GU

Description
IC RX AM/FM/SW/LW RAD RDS 24SSOP
CategoryAnalog mixed-signal IC    Consumption circuit   
File Size351KB,42 Pages
ManufacturerSilicon Laboratories Inc
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SI4735-C40-GU Overview

IC RX AM/FM/SW/LW RAD RDS 24SSOP

SI4735-C40-GU Parametric

Parameter NameAttribute value
MakerSilicon Laboratories Inc
Parts packaging codeSSOP
package instructionROHS COMPLIANT, MO-137AE, SSOP-24
Contacts24
Reach Compliance Codeunknown
ECCN codeEAR99
Commercial integrated circuit typesAUDIO SINGLE CHIP RECEIVER
Number of terminals24
Package body materialPLASTIC/EPOXY
Package formSMALL OUTLINE
Certification statusNot Qualified
surface mountYES
Terminal formGULL WING
Terminal locationDUAL
Si4734/35-C40
B
ROADCAST
AM/FM R
ADIO
R
ECEIVER
Features
Worldwide FM band support
AM/FM/SW/LW digital tuning
EN55020 compliant
No manual alignment necessary
Programmable reference clock
Volume control
Adjustable soft mute control
RDS/RBDS processor (Si4735)
Optional digital audio out (Si4735)
2-wire and 3-wire control interface
Integrated LDO regulator
2.0 to 5.5 V supply voltage (SSOP)
2.7 to 5.5 V supply voltage (QFN)
Wide range of ferrite loop sticks and
(64–108 MHz)
Worldwide AM band support
(520–1710 kHz)
SW band support
(2.3–26.1 MHz)
LW band support
(153–279 kHz)
Excellent real-world performance
Freq synthesizer with integrated VCO
Advanced seek 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
Ordering Information:
See page 32.
Pin Assignments
Si4734/35 (QFN)
GPO3/DCLK
17
10
VIO
GPO2/INT
GPO1
air loop antennas supported
QFN and SSOP packages
RoHS compliant
NC
1
FMI 2
RFGND 3
20
19
18
16
15 DOUT
Applications
Description
The Si4734/35 is the first digital CMOS AM/FM radio receiver IC that integrates
the complete tuner function from antenna input to audio output.
Si4734/35 (SSOP)
DOUT
DFS
GPO3/DCLK
GPO2/INT
GPO1
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
LOUT
ROUT
DBYP
VDD
VIO
RCLK
SDIO
SCLK
SEN
RST
GND
GND
Functional Block Diagram
FM / SW
ANT
FMI
LNA
AGC
AM / LW
ANT
AMI
RFGND
LNA
AGC
2.7–5.5 V (QFN)
2.0–5.5 V (SSOP)
VDD
GND
LDO
AFC
ADC
ADC
DSP
DAC
LOUT
Si4734/35
RDS
(Si4735)
LOW-IF
DIGITAL
AUDIO
(Si4735)
DOUT
DFS
GPO/DCLK
NC
NC
FMI
RFGND
NC
NC
DAC
ROUT
AMI
CONTROL
INTERFACE
VIO
1.85-3.6 V
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.
SEN
SCLK
Rev. 1.0 12/09
Copyright © 2009 by Silicon Laboratories
RCLK
SDIO
RST
RCLK
SCLK
Table and portable radios
Stereos
Mini/micro systems
CD/DVD players
Boom boxes
SEN
SDIO
Modules
Clock radios
Mini HiFi
Entertainment systems
AMI 4
RST 5
6
7
GND
PAD
8
9
11 VDD
Si4734/35-C40
DFS
14 LOUT
13 ROUT
12 GND
NC
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