21ic News Silicon Labs today announced the expansion of its popular Si468x digital radio IC family with new AM and AM HD Radio capabilities. The Si468x IC is the most cost-effective single-chip digital radio receiver currently supporting global radio reception and has been certified by Digital Radio UK and AM/FM HD Radio. As the industry's first CMOS-based single-chip digital radio IC from antenna input to audio output, the Si468x receiver is ideal for portable and consumer electronics that support digital radio standards, covering desktop and clock radios, portable audio, Mini/micro audio system, home theater system, docking station, mobile phone, tablet and personal media player.
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The Si468x family of low-power, multi-band receivers supporting global analog and digital radio standards including AM, FM, FM RDS, AM/FM HD Radio, DAB and DAB+. Currently, only a few receiver products have been approved by Digital Radio UK (DRUK) for use with the Digital Tick Mark, and the Si468x series is one of them. This means that consumers who purchase Si468x-based DAB radios can ensure the quality of their radios and make digital audio reception ready. The Si468x IC supporting AM/FM HD Radio is pre-certified by iBiquity, the sole developer and certifier of HD Radio technology, enabling designers to develop and certify their HD Radio products in the shortest amount of time.
The Si468x receiver family offers a complete, cost-effective digital radio solution that integrates RF tuner, baseband and audio processing circuitry on a single die. The Si468x receiver requires only a very low bill of materials (BOM) and has very low power consumption, making it ideal for the portable and mainstream consumer electronics markets. The high level of integration of this family of products offers even more significant benefits over traditional radio solutions, including reduced system complexity, ease of verification and testing, improved reliability and manufacturing.
With the patented digital low-IF receiver architecture from Silicon Labs, the Si468x receiver offers superior RF performance over existing digital radio solutions. The Si468x receiver supports auto-calibrated digital tuning and AM/FM search based on multiple signal quality and baseband parameters, which provides flexible advanced audio processing including configurable AM/FM soft mute, FM stereo-single Channel mixing and AM/FM hi-cut filtering.
Main features of Si468x digital radio series:
· New features: AM HD Radio support and AM capabilities added to the DAB/DAB+ receiver product line
· New features: approved for use with Digital Radio Tick Mark
· New features: Acquired iBiquity's AM/FM HD Radio certification
Pin- and API-compatible DAB and HD Radio receiver ICs support two digital radio markets in a single design
· Support global AM and FM bands, as well as future IBOC standards adopted in North America
· Integrated VCO, PLL, synthesizer and high fidelity stereo audio DAC to reduce board area and BOM cost
· Integrated high-performance DSP for audio decoding and flexible advanced audio processing for improved audio performance
· The best sensitivity and selectivity in the industry's single-chip digital radio receiver
· Lowest power consumption in digital radio receivers to increase battery life in portable products
· Available Si468x Master/Slave modules accelerate design and time to market
· Chip-level chip-scale package (CSP) selection, a complete and compact radio receiver system with only 12 external components, PCB area less than 100 square millimeters.
Price and availability
Silicon Labs' Si468x digital radio ICs are now in volume production and are available in samples. The Si468x is priced at $5.28 in quantities of 10,000. The Si468x-QFN-EVB (FM/FM-HD/DAB/DAB+) and Si4689-QFN-EVB (AM/FM/HD/DAB/DAB+) evaluation boards are also available, with a retail price of $550.
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