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SI4704 Folha de dados(PDF) 1 Page - List of Unclassifed Manufacturers |
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SI4704 Folha de dados(HTML) 1 Page - List of Unclassifed Manufacturers |
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1 / 2 page  FM Tuner Copyright © 2008 by Silicon Laboratories 4.02.08 ADC ADC Si4704/05 DSP DAC DAC ROUT LOUT AFC GPO RFGND LNA FMI AGC PGA RCLK REG VDD 2.7–5.5 V Headphone Cable XTAL OSC LPI 32.768 kHz 0/90 DOUT DCLK DFS CONTROL INTERFACE RSSI RDS (Si4705) Si4704/05 Enhanced Broadcast FM Radio Receiver for Portable Applications Description The Si4704/05 enhanced FM receiver is the most advanced portable solution available today offering embedded antenna support, digital audio out, worldwide FM band support, and highly flexible, mature, and proven FM functionality in a simple API. The Si4704/05 incorporates Silicon Labs' tuned-resonance antenna technology for crystal clear FM reception in wire-free device enclosures. Silabs' internationally patented tuned- resonance technology allows embedded FM antennas such as PCB traces, loops, stubs, or other devices to perform exceptionally well, enabling devices with integrated Bluetooth to receive FM transmissions without an external FM antenna, and transmit the FM content to Bluetooth-enabled headsets. This is the best, most cost- effective solution to enable wire-free FM reception. The Si4705 also offers digital audio out for FM recording. Content recorded over the Si4705 can be shared with friends or played at a later time in MP3 format. The content can also be tagged with RDS information, allowing song name and artist labels to be displayed as is done with MP3 meta data. Using the digital audio out, the Si4705 can also reduce total system power consumption by avoiding unnecessary ADC/DAC conversions between the FM receiver and the host processor. The Si4704/05 truly supports worldwide FM bands, starting at 64 MHz for Eastern European countries and extending all the way to 108 MHz for the rest of the world. The device supports channel spacing down to 10 kHz, and includes advanced, proven seek functionality. All the Silicon Labs proven FM receiver expertise is incorporated in the Si4704/ 05, gained through thousands of designs with almost every OEM and ODM in the world and over 100 million devices shipped. The Si4704/05 leverage Silicon Labs' internationally patented and proven digital low-IF architecture, offering proven functionality in a simple and mature API. The device is offered in a highly reliable, ultra-small 3 x 3 x 0.55 mm 20-pin QFN and is layout compatible with the full suite of Silicon Labs broadcast offerings including FM transmit, AM/FM/SW receive, weather band receive and SAME decode, and unparalleled RDS data receivers. The complete solution, including a minimal BOM, requires less than 15 mm2 board area, or less than half that of other competing solutions. The Si4705 incorporates Silicon Labs' proven and widely adopted RDS processor, including worldwide compliance, all symbol decoding, error detection, error correction, and other RDS functions. The Si4705 RDS functionality is unmatched in the industry for performance, on-chip processing, and worldwide adoption. Features - Worldwide FM band support (64~108 MHz) - Supports integrated antenna - Digital low-IF receiver - Excellent real-world performance - Frequency synthesizer with integrated VCO - Seek tuning - Automatic frequency control (AFC) - Automatic gain control (AGC) - Integrated LDO regulator - Minimal BOM - Adjustable seek parameters - Adjustable mono/stereo blend - Adjustable soft mute - RDS/RBDS decoder(Si4705 only) - Optional digital audio output (Si4705 only) - Programmable de-emphasis(50/75us) - Programmable reference clock input - Signal quality measurement - 3 x 3 x 0.55 mm 20-pin Pb-free QFN package Applications - Cellular handsets - MP3 players - Portable media players - Personal computers - Portable navigation devices - Consumer electronics |
Nº de peça semelhante - SI4704 |
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Descrição semelhante - SI4704 |
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