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SI4844-B20 データシート(PDF) 1 Page - Silicon Laboratories |
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SI4844-B20 データシート(HTML) 1 Page - Silicon Laboratories |
1 / 27 page Rev. 1.0 5/13 Copyright © 2013 by Silicon Laboratories Si4844-B20 Si4844-B20 B ROADCAST A NALOG TUNING D IGITAL D ISPLAY AM/FM/SW R ADIO R ECEIVER Features Applications Description The Si4844-B is the analog-tuned digital-display digital CMOS AM/FM/SW radio receiver IC that integrates the complete receiver function from antenna input to audio output. Working with the host MCU (I2C-compatible 2-wire control interface), frequencies and stereo/mono information can be displayed on LCD while the analog- tune features are kept. Si4844-B is pin-to-pin compatible with the current Si484x-A tuner. Sharing all the advanced features of the Si484x-A, Si4844-B can support a wider range of FM and SW bands. The Si4844-B also supports China TV channels audio reception in FM band. The superior control algorithm integrated in the Si4844-B provides a easy and reliable control interface while eliminating all the manual-tuned external components used in a traditional solution. Functional Block Diagram Worldwide FM band support (64–109 MHz) Worldwide AM band support (504–1750 kHz) SW band support (2.3–28.5 MHz) Selectable support for all AM/FM regional bands Enhance FM/SW band coverage 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 China TV channels audio carrier reception in FM band 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 Table and portable radios Stereos Mini/micro systems Boom boxes Clock radios Modules for consumer electronics Entertainment systems Toys, lamps, and any application needing an AM/FM/SW radio Mini HiFi iPhone docking Si4830/34 ADC ADC DSP DAC DAC ROUT LOUT AFC Si4844-B RFGND LNA AMI AGC REG VDD1/2 2.0~3.6V XTAL OSC FMI 0/90 AM ANT FM ANT CONTROL INTERFACE TUNE1/2 BAND XTALI ADC This product, its features, and/or its architecture is covered by one or more of the following patents, as well as other patents, pending and issued, both foreign and domestic: 7,127,217; 7,272,373; 7,272,375; 7,321,324; 7,355,476; 7,426,376; 7,471,940; 7,339,503; 7,339,504. Ordering Information: See page 21. Pin Assignments Si4844-B20 (SSOP) NC FMI RFGND AMI BAND TUNE2 TUNE1 IRQ LNA_EN NC NC NC RST LOUT ROUT DBYP VDD2 SCLK SDIO XTALO XTALI VDD1 GND GND 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 |
同様の部品番号 - SI4844-B20 |
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同様の説明 - SI4844-B20 |
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