FM Radio Transmitters

The Si471x FM radio transmitter ICs are the industry's first 100% CMOS, single-chip FM transmitters with Receive Power Scan (RPS). The Si4712/13 devices leverage Silicon Labs’ proven FM receiver architecture and offer unmatched integration and performance, allowing FM transmit and FM transmit with RPS to be added to any portable device using a single chip. The Si471x ICs offer industry-leading size, performance, low-power consumption and ease of use.
 
Digital integration reduces the required external components of traditional offerings, resulting in a solution requiring only an external inductor and bypass capacitor and PCB space of approximately 15 mm². The devices provide high reliability in device manufacturing, improved quality, easy design-in and software programmability.


FM Radio Transmitter Products

Part Number​ Description​ RDS​ Dig I/O​ RPS​
Si4710/11​ FM Radio ​Transmitter Yes​ Yes​ –​
Si4712/13 FM Radio ​Transmitter​ Yes​ Yes​ Yes​

 


Technology in Action

Our customers' products are getting rave reviews: 
 
"The one thing that has blown my hair back and made me truly appreciate this talented little device is something I had never before seen in a mobile phone…an FM transmitter."
  • www.geardiary.com
"Shouldn’t all music phones have an FM transmitter built in?"
  • www.everyjoe.com
     

 SEMC w980i named European Imaging and Sound Association's Best Music Phone award for 2008.

 “One incredibly valuable innovation is the built-in FM radio transmitter.”


 

 

 

 

 

 

 

 

 


Documentation    Expand All   Collapse All

 
 Get notified when these documents are updated.

Data Sheet (2)

Document NameDescriptionVersionLast Updated
Si4710-11-B30.pdf
Si4710-11-B30 Data SheetRev 1.1
Si4712-13-B30.pdf
Si4712-13-B30 Data SheetRev 1.1

Data Short (2)

Document NameDescriptionVersionLast Updated
Si4710-11_short.pdf
Si4710/11 Data Short4.3.2008
Si4712-13_short.pdf
Si4712-13 FM Radio Transmitter with Receive Power Scan040308

User Guides (1)

Document NameDescriptionVersionLast Updated
Si47xxEVB.pdf
Si47xx-EVB User Guide0.75/24/2011

Application Notes (8)

Document NameDescriptionVersionLast Updated
AN299.pdf
AN299: External 32.768 kHz Crystal Oscillator0.1
AN307.pdf
AN307: Si4712/13/20/21 Receive Power Scan Primer0.2
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

White Papers (1)

Document NameDescriptionVersionLast Updated
FMTutorial.pdf
FM Tutorial0926089/26/2008

PCN (4)

Document NameDescriptionVersionLast Updated
1105271 Si4700 4701-Bxx Si4710 4713 20-Axx Si4706-C31 Si4733-C30 Si4784 4785 EOL LTB std.pdf
1105271 Si4700 4701-Bxx Si4710 4713 20-Axx Si4706-C31 Si4733-C30 Si4784 4785 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
1104011-Cancelled-ASEKR Die Bond Adhesive – Japan Earthquake and Tsunami Disaster Recovery.pdf
Cancelled-ASEKR Die Bond Adhesive – Japan Earthquake and Tsunami Disaster Recovery
1001251-Si471x_and_Si472x_Transition_revA_to_revB_Std.pdf
Si471x_and_Si472x_Transition_revA_to_revB_Std

Design Tools    Expand All   Collapse All

 
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Software (1)

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

Training (1)

Document NameDescriptionVersionUpdated
Minimize BOM webinar.pdf
Minimize Your BOM Cost