Si483x (Si4831/Si4835)一体化轮调AM/FM/SW收音机芯片介绍

Silicon LabsSi483xIC是業界**款用於模擬調諧AM/FM/SW收音機的CMOSDSPIC，這片晶片提供了從天線輸入到音頻輸出的完整收音機解決方案。基於專利設計，Si483xAM/FM接收晶片不需要外接的微控制器、可變電容、AM/FMIF濾波器以及其他分立元件，大大地節省了開發時間、零件的數量和勞動力成本。Si483x系列產品可應用在可擕式收音機、身歷聲收音機、時鐘和臺燈收音機、玩具收音機和禮品收音機等各種帶收音功能的產品上。

Specification:

• Worldwide FM band support (64–109 MHz)
• Worldwide AM band support (504–1750 kHz)
• SW band support (5.6–22 MHz) (Si4835only)
• Direct volume control
• On-chip bass and treble tone control
• Supports station and stereo LEDindicators
• Flexible band selections
• Excellent real-world performance
• Automatic frequency control (AFC)
• Integrated LDO regulator
• 24-pin Pb-free SSOP
• EN55020-compliant
• Small single-sided PCB
• No manual alignment required
• No external MCU required
• Runs off 2 AAA batteries with 2.0~3.6 Vsupplyvoltage
• Wide range of ferrite loop sticks and airloopantennas supported
• Advanced linear frequency display
   

Applications:

• Table and portable radios
• Stereos
• Mini/micro systems
• CD/DVD players
• Boomboxes
• Modules
• Clock radios
• Mini HiFi
• Entertainment systems
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