
Silicon Labs Si483x IC是業(yè)界第一款用於模擬調(diào)諧AM/FM/SW收音機的CMOS DSP IC,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(shè)計,Si483x AM/FM接收晶片不需要外接的微控制器、可變電容、AM/FM IF濾波器以及其他分立元件,大大地節(jié)省了開發(fā)時間、零件的數(shù)量和勞動力成本。Si483x系列產(chǎn)品可應(yīng)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(chǎn)品上。
目前,中國每年為全球市場生產(chǎn)超過一億臺模擬調(diào)諧收音機,這使其成為模擬調(diào)諧式AM/FM收音機的世界製造中心,生產(chǎn)和裝配這些類比電路密集的收音機,通常需要很多分立零件,還需要大量的人力去調(diào)試收音機,成本居高不下,並且因為零件品質(zhì)、生產(chǎn)調(diào)試工藝複雜等原因難以保證造成整機產(chǎn)品的性能的一致性。Si483x AM/FM接收器系列產(chǎn)品推出,把先進的數(shù)位無線電技術(shù)應(yīng)用到類比調(diào)諧收音機市場,徹底解決了這一難題,使得收音機製造商可以降低產(chǎn)品成本,提高產(chǎn)品性能,而且可在所有的消費電子產(chǎn)品上都增加FM/MW/SW收音機功能。
Specification:
- Worldwide FM band support (64–109 MHz)
- Worldwide AM band support (504–1750 kHz)
- SW band support (5.6–22 MHz) (Si4835 only)
- Direct volume control
- On-chip bass and treble tone control
- Supports station and stereo LED indicators
- 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 V supply voltage
- Wide range of ferrite loop sticks and air loop antennas 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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