AM/FM/Longwave/Shortwave/Weather Band Radio Receivers

The Si473x, Si474x, Si4707, Si4831/35 and Si4840/44 devices are the industry's first fully integrated, 100% CMOS AM/FM/SW/LW and WB radio receiver ICs. Offering unmatched integration and PCB space savings, the Si47xx ICs require only two external components and less than 15 mm2 of board area excluding the antenna inputs.


Multi-Band Radio Receiver Products

Part Number Description​ RDS​ Dig I/O​
Si4707 Weather Band Radio​ Receiver —​ —​
Si4730/31 AM/FM Radio Receivers​ Yes​ Yes​
Si​4734/35 AM/FM/SW/LW Radio Receiver​s Yes​ Yes​
Si4736/37 AM/FM/WB Radio Receiver​s Yes​ Yes​
Si4820/24 Mechanical-tuned AM/FM Radio Receiver​ —​ —​
Si4822/26​ Analog-tuned Digital Diaplay AM/FM/SW Radio Receiver​ ​— ​—
Si4738/39 FM/WB Radio Receiver​s​ Yes​ Yes​
Si4831/35 Mechanical-tuned AM/FM/SW Radio Receiver​ —​ —​
Si4840/44​ Analog-tuned Digital Display AM/FM/SW Radio Receiver​ —​ —​

Documentation    Expand All   Collapse All

 
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Data Sheet (19)

Document NameDescriptionVersionLast Updated
Si4835-B31.pdf
Broadcast Mechanical Tuning AM/FM/SW Radio Receiver1.010/7/2011
Si4707_B20.pdf
Si4707-B20 Data Sheet0.812/11/2008
Not-Rec-for-New-Designs Si4730-31-A10.pdf
Si4730/31-A10 Data Sheet—EOL—Not Recommended for New Designs – Please Use Si4730-31-34-35-D601.09/28/2011
Si4730-31-34-35-D60.pdf
Si4730-31-34-35-D60 Data Sheet—Ideal for Consumer Electronics (CE). Please use Si4730-31-D50 for Mobile Devices.1.111/28/2011
Not-Rec-for-New-Designs Si4730-31-B20.pdf
Si4730-31-B20 Data Sheet—EOL—Not Recommended for New Designs – Please Use Si4730-31-34-35-D601.09/28/2011
Not-Rec-for-New-Designs Si4730-31-C40.pdf
Si4730-31-C40 Data Sheet—EOL—Not Recommended for New Designs—Please Use Si4730-31-34-35-D601.012/3/2009
Si4730-31-D50.pdf
Si4730-31-D50 Data Sheet—Ideal for Handsets only. Please Use Si4730-31-34-35-D60 for CE devices.1.09/28/2011
Not-Rec-for-New-Designs Si4734-35-B20.pdf
Si4734-35-B20 Data Sheet – Not Recommended for New Designs – Please Use Si4730-31-34-35-D601.09/28/2011
Not-Rec-for-New-Designs Si4734-35-C40.pdf
Si4734-35-C40 Data Sheet – Not Recommended for New Designs – Please Use Si4730-31-34-35-D601.09/28/2011
Si4736-37-38-39-B20.pdf
Si4736-37-38-39-B20 Data Sheet – Not Recommended for New Designs – Please Use Si4736-37-38-39-C401.09/28/2011
Si4736-37-38-39-C40.pdf
Si4736-37-38-39-C40 Data Sheet1.012/3/2009
Si4820-24-A10.pdf
Si4820-24-A10 Data Sheet1.011/17/2011
Si4820-24-A10-Chinese.pdf
Si4820-24-A10 Data Sheet (Chinese)1.03/21/2012
Si4822-26-A10.pdf
Si4822-26-A10 Data Sheet1.011/17/2011
Si4822-26-A10-Chinese.pdf
Si4822-26-A10 Data Sheet (Chinese)1.03/22/2012
Si4831-35-B30.pdf
Si4831-35-B30 Data Sheet1.01/31/2011
Si4831-35-B30-Chinese.pdf
Si4831-35-B30 Data Sheet (Chinese)1.0
Si4840-44-A10.pdf
Si4840-44-A10 Data Sheet1.08/22/2011
Si4840-44-A10-Chinese.pdf
Si4840-44-A10 Data Sheet (Chinese)1.08/26/2011

Data Short (9)

Document NameDescriptionVersionLast Updated
Si4749_short.pdf
High-Performance FM RDS/RBDS Data Receiver/Alternate Frequency Scanner05-02-08
Si4707_short.pdf
Si4707 Data Short040208
Si4730-31_short.pdf
Si4730-31 Data Short09.17.109/22/2010
Si4734-35_short.pdf
Si4734-35 Data Short04.01.089/28/2011
Si4736-37-38-39_short.pdf
Si4736-37-38-39 Data Short01.07.089/28/2011
Si4740-41-42-43-44-45_short.pdf
Si4740-41-42-43-44-45 Data Short10230810/25/2008
Si475x-A10_short.pdf
Si475x-A10 Data Short11.16.1011/24/2010
Si4830_short.pdf
Si4830 Data Short0224102/25/2010
Si4840-44_short.pdf
Si4840-44 Data Short6.13.118/22/2011

User Guides (6)

Document NameDescriptionVersionLast Updated
Si4731DEMO.pdf
Si4731 Demo User's Guide0.19/26/2008
Si4731DEMO_Chinese.pdf
Si4731 Demo User's Guide--Chinese Version0.19/26/2008
Si47xxEVB.pdf
Si47xx-EVB User Guide0.82/8/2012
Si4820-24DEMO.pdf
Si4820-24-DEMO User's Guide0.111/17/2011
Si4822-26DEMO.pdf
Si4822-26-DEMO User's Guide0.111/17/2011
Si484x-DEMO.pdf
Si484x-Demo Board User Guide0.18/22/2011

Application Notes (17)

Document NameDescriptionVersionLast Updated
AN230.pdf
AN230: Si4700/01/02/03 Programmer's Guide0.84/24/2009
AN235.pdf
AN235: Si4700/01/02/03 Evaluation Board Quick Start Guide0.66/10/2008
AN299.pdf
AN299: External 32.768 kHz Crystal Oscillator0.1
AN316.pdf
AN316: AM/FM Tuner Field Test Procedure0.2
AN332.pdf
AN332: Si47xx Programming Guide0.812/1/2011
AN346_Chinese.pdf
AN346: Si47xx Evaluation Board Quick Start Guide (Chinese)0.1 (Chines4)
AN346.pdf
AN346: Si47xx Evaluation Board Quick-Start Guide0.1
AN383.pdf
AN383: Si47xx Antenna, Schematic, Layout and Design Guidelines0.612/3/2011
AN388.pdf
AN388: Si470/1x/2x/3x/4x Evaluation Board Test Procedure0.2
AN555_Chinese.pdf
AN555: Si483x-B/Si4820/24 Antenna Schematic, Layout, and Design Guidelines0.21/13/2012
AN555.pdf
AN555: Si483x-B-Si4820-24 Antenna, Schematic, Layout, and Design Guidelines0.211/17/2011
AN569.pdf
AN569: Si4831/35/20/24-Demo Board Test Procedure0.211/17/2011
AN602.pdf
AN602: Si4822/26/40/44 Antenna, Schematic, Layout, and Design Guidelines0.211/17/2011
AN602_Chinese.pdf
AN602: Si4822/26/40/44 Antenna, Schematic, Layout, and Design Guidelines (Chinese)0.21/12/2012
AN603.pdf
AN603: Si4822-26-40-44 Demo Board Test Procedure0.211/17/2011
AN610_Chinese.pdf
AN610: Si4822-26-40-44 Programming Guide (Chinese)0.21/18/2012
AN610.pdf
Si4822-26-40-44 Programming Guide0.211/17/2011

White Papers (3)

Document NameDescriptionVersionLast Updated
ATDD-Radio-White-Paper.pdf
Designing Wheel-Tuned, Digital-Display Radios with Next-Generation Radio ICs1.08/24/2011
FMTutorial.pdf
FM Tutorial0926089/26/2008
ATDD-Radio-White-Paper-Chinese.pdf
轮调数显收音机系统设计要素1.09/13/2011

Miscellaneous (1)

Document NameDescriptionVersionLast Updated
Si4831-35FAQ.pdf
Si4831-35 Frequently Asked Questions0.14/14/2011

PCN (5)

Document NameDescriptionVersionLast Updated
1105171 Si4704 05 06 30 31 34 35 to revD std.pdf
1105171 Si4704 05 06 30 31 34 35 to revD std
1106021 SI483x Axx EOL LTB std.pdf
1106021 SI483x Axx EOL LTB std
1110251 Si47xx-B20 B30 B31 C40 D50 D60 3x3mm QFN Change to Copper Wire in ASEKR std.pdf
1110251 Si47xx-B20 B30 B31 C40 D50 D60 3x3mm QFN Change to Copper Wire in ASEKR std
1205111B Si4704-05-30-31-34-35 datasheet rev 10 to 11.pdf
1205111B Si4704-05-30-31-34-35 datasheet rev 10 to 11
1104011-Cancelled-ASEKR Die Bond Adhesive – Japan Earthquake and Tsunami Disaster Recovery.pdf
Cancelled-ASEKR Die Bond Adhesive – Japan Earthquake and Tsunami Disaster Recovery

Design Tools    Expand All   Collapse All

 
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Software (1)

Document NameDescriptionVersionUpdated
AN332_Si47xxExampleCode.zip
AN332SW0.31/24/2009

Training (3)

Document NameDescriptionVersionUpdated
Si4706_49_Presentation.pdf
Data Receivers Media Presentation
Si473x_Presentation.pdf
Introducing the Si473x Multiband Receiver Family
Minimize BOM webinar.pdf
Minimize Your BOM Cost