Radio receiver IC modernises wheel-tuned radio products with digital displays
Silicon Laboratories
Silicon Laboratories has introduced a multi-band radio receiver IC solution designed to modernise wheel-tuned radio products with digital displays.
Based on a patented low-IF digital architecture, the Si484x receivers offer high integration in CMOS, reducing radio component count by more than 70 per cent.
The receivers are said to shrink bill-of-materials (BOM) and PCB area requirements in applications such as tabletop and portable radios, stereos, mini/micro systems, clock radios, docking stations, radio toys or any consumer electronics product containing a digital-display radio tuned by a mechanical wheel.
Key specifications
- Delivers unsurpassed RF performance in AM/FM/SW bands, as well as audio features that are unmatched by competing radio ICs, according to the company.
- Automatically tuned RF front-end circuitry adjusts to reject noise and amplify the target signal.
- In crowded broadcast environments, the RF front-end automatically attenuates undesired blockers and receives the audio signals on the desired channel with high signal quality.
- The receivers provide advanced audio conditioning for all signal environments, removing pops, clicks and loud static in variable signal conditions.
- Enables display indicators for valid stations, mono/stereo signals and tuned frequency.
- Additional audio features include digital volume control, soft mute and bass/treble audio control.
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