RECEIVER. Si4737-C40 Datasheet

Si4737-C40 Datasheet PDF

Part Si4737-C40
Description BROADCAST AM/FM RADIO RECEIVER
Feature Si4736/37/38/39-C40 BROADCAST AM/FM RADIO RECEIVER Features  NOAA weather band support  AM/FM/.
Manufacture Silicon Laboratories
Datasheet
Download Si4737-C40 Datasheet





Si4737-C40
Si4736/37/38/39-C40
BROADCAST AM/FM RADIO RECEIVER
Features
NOAA weather band support
AM/FM/WB digital tuning
(162.4–162.55 MHz)
No manual alignment necessary
Worldwide FM band support
Programmable reference clock
(64–108 MHz)
Volume control
Worldwide AM band support
Adjustable soft mute control
(520–1710 kHz) (Si4736/37)
RDS/RBDS processor (Si4737/39)
1050 Hz alert tone detection
Optional digital audio out (Si4737/39)
Excellent real-world performance
2-wire and 3-wire control interface
Freq synthesizer with integrated VCO Integrated LDO regulator
Advanced AM/FM seek tuning
2.0 to 5.5 V supply voltage (SSOP)
Automatic frequency control (AFC) 2.7 to 5.5 V supply voltage (QFN)
Automatic gain control (AGC)
Wide range of ferrite loop sticks and
Digital FM stereo decoder
air loop antennas supported
Programmable AVC max gain
QFN and SSOP packages
Programmable de-emphasis
RoHS compliant
Applications
Emergency radios
Table and portable radios
Stereos
Mini/micro systems
Boom boxes
Modules
Clock radios
Mini HiFi
Description
The Si4736/37/38/39 is the first digital CMOS AM/FM radio receiver IC that
integrates the complete tuner function from antenna input to audio output.
Functional Block Diagram
AMI
AM
ANT RFGND
FM/
WB
ANT
FMI
2.7– 5.5 V (QFN)
2.0– 5.5 V (SSOP) VDD
GND
LNA
AGC
LNA
AGC
LDO
Si473x
RDS
(Si4737/
39)
LOW-IF
DIGITAL
AUDIO
(Si4737/
39)
DOUT
DFS
GPO/DCLK
ADC DAC
DSP
ADC DAC
ROUT
LOUT
AFC
CONTROL
INTERFACE
VIO
1.85–3.6 V
Ordering Information:
See page 32.
Pin Assignments
Si4736/37/38/39 (QFN)
NC 1 20 19 18 17 16
FMI 2
15 DOUT
RFGND 3
AMI 4
GND
PAD
14 LOUT
13 ROUT
RST 5
12 GND
6 7 8 9 10 11 VDD
Si4736/37 (SSOP)
DOUT
DFS
GPO3/DCLK
GPO2/INT
GPO1
NC
NC
FMI
RFGND
NC
NC
AMI
1
2
3
4
5
6
7
8
9
10
11
12
24 LOUT
23 ROUT
22 DBYP
21 VDD
20 VIO
19 RCLK
18 SDIO
17 SCLK
16 SEN
15 RST
14 GND
13 GND
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 12/09
Copyright © 2009 by Silicon Laboratories
Si4736/37/38/39-C40



Si4737-C40
Si4736/37/38/39-C40
2 Rev. 1.0




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