Si4822/26/27/40/44 Analog-Tuned Digital Display AM/FM/SW Radio Receiver 

The Si4822/26/27/40/44 is the first analog-tuned digital-display CMOS AM/FM/SW radio receiver IC that integrates the complete receiver function from antenna input to audio output. Working with a host MCU I2C-compatible 2-wire control interface, frequencies and stereo/mono information can be displayed on an LCD, while the analog-tune features are kept.
Leveraging Silicon Labs' proven and patented digital low intermediate frequency (low-IF) receiver architecture, the Si4822/26/27/40/44 deliver superior RF performance and interference rejection. The integrated superior control algorithm provides an easy and reliable control interface while eliminating all of the manual tuned external components used in a traditional solution.
For consumer applications that require EN 55020 compliance, use the Si4840/44 family.
 
 

Features

  • Worldwide FM band support (64–109 MHz)
  • Worldwide AM band support (504–1750 kHz)
  • SW band support (2.3–28.5 MHz) (Si4826/27/44 only)
  • Selectable support for all AM/FM regional bands
  • 2-wire control interface
  • Mono/Stereo and valid station indicator
  • Digital volume support
  • Bass/Treble support
  • Minimal BOM components with no manual alignment
  • Excellent real-world performance
  • Automatic frequency control (AFC)
  • EN55020 compliant
  • Two AAA batteries with 2.0 to 3.6 V supply voltage
  • Wide range of ferrite loop sticks and air loop antenna support
  • 24-pin SSOP package
  • RoHS compliant
 
 

Applications

Documentation

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Data Sheet (7)

Document NameDescriptionVersionLast Updated
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
Si4825-A10.pdf
Si4825-A10 Data Sheet0.83/25/2013
Si4827-A10.pdf
Si4827-A10 Data Sheet0.83/25/2013
Si4836-A10.pdf
Si4836-A10 Data Sheet0.83/25/2013
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 (1)

Document NameDescriptionVersionLast Updated
Si4840-44-short.pdf
Si4840-44 Data Short6.13.118/22/2011

User Guides (3)

Document NameDescriptionVersionLast Updated
Si4822-26DEMO.pdf
Si4822-26-DEMO User's Guide0.111/17/2011
Si4827DEMO.pdf
Si4827 Demo Board Users Guide0.13/26/2013
Si484x-DEMO.pdf
Si484x-Demo Board User Guide0.18/22/2011

Application Notes (6)

Document NameDescriptionVersionLast Updated
AN602.pdf
AN602: Si4822/26/27/40/44 Antenna, Schematic, Layout, and Design Guidelines0.33/25/2013
AN602-Chinese.pdf
AN602: Si4822/26/27/40/44 Antenna, Schematic, Layout, and Design Guidelines (Chinese)0.35/3/2013
AN603.pdf
AN603: Si4822-26-27-40-44 Demo Board Test Procedure0.33/25/2013
AN610-Chinese.pdf
AN610: Si48xx ATDD Programming Guide (Chinese)0.35/22/2013
AN738.pdf
AN738: Si4825/36-A Antenna, Schematic, Layout and Design Guidelines0.13/25/2013
AN610.pdf
Si48xx ATDD Programming Guide0.33/25/2013

White Papers (2)

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

PCN (1)

Document NameDescriptionVersionLast Updated
1303141-Si468x-Datasheet-Update-Revision-0.7-std.pdf
1303141 Si468x Datasheet Update Revision 0.7 std

Product Matrix

Product Matrix
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Part Number Available DocumentsDescriptionDig I/ORDS Support
Si4822-A10-CUData Sheet
Analog-tuned digital display AM/FM radio receiverNoNo
Si4826-A10-CUData Sheet
Analog-tuned digital display AM/FM/SW radio receiverNoNo
Si4827-A10-CSData Sheet
Analog-tuned digital display AM/FM/SW radio receiver, wide FM/SW bandNoNo
Si4840-A10-GUData Short
Analog-tuned, digital display AM/FM radio receiverNoNo
Si4844-A10-GUData Short
Analog-tuned, digital display AM/FM/SW radio receiverNoNo

Overview

Documentation

Tools

Product Matrix

Education

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