FM radio, ultra-slim design, 76–108 MHz, RDS/RBDS encoder and decoderDesigned by Bazinga!, Ships from Singapore
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FM radio can still be surprisingly ubiquitous and versatile. This breakout contains Silab’s Si4721 single-chip FM radio transceiver, offering full FM receive and transmit capabilities in a single, ...Read More…
FM radio can still be surprisingly ubiquitous and versatile. This breakout contains Silab’s Si4721 single-chip FM radio transceiver, offering full FM receive and transmit capabilities in a single, ultra-small 3x3x0.55 mm QFN package. We have nicely paired this useful FM radio chip together with a Texas Instruments LM4910 Boomer audio amplifier capacitor-less stereo 35mW headphone amplifier. We've also integrated a PCB trace antenna. The Si4721 is the first FM radio transceiver integrated circuit to support a small loop antenna, which can be integrated into the enclosure or PCB of a portable device. For portable navigation devices, the Si4720’s antenna architecture permits integration of the traffic messaging antenna into the enclosure of the portable device, and eliminates the need for traditional external antenna cables.
The Si4721 eliminates output coupling with half-supply bypass capacitors and advanced circuitry. This approach eliminates noises caused by transients. No capacitors allow for a much smaller design! Digital integration reduces the required external components of traditional offerings, resulting in a solution requiring only an external inductor and bypass capacitor, and a PCB space of approximately 15 mm^2. You can now use this development breakout to develop or add FM radio capability to your projects! FM receiver and transmit functionality may be added to any portable device by using this single chip.
The Si4721’s integrated receive power scan function shares the same antenna as the transmitter allowing for a compact printed circuit board design. The device operates in half duplex mode, meaning the transmitter and receiver do not operate at the same time.
The Si4720/21 performs FM modulation in the digital domain to achieve high fidelity, optimal performance versus power consumption, and flexibility of design. The onboard DSP provides modulation adjustment and audio dynamic range control for optimum sound quality. The Si4721 supports the European Radio Data System (RDS) and the US Radio Broadcast Data System (RBDS) including all the symbol encoding, block synchronization, and error correction functions. Using this feature, the Si4721 enables data such as artist name and song title to be transmitted to an RDS/RBDS receiver.
Add FM radio with onboard RDS/RDBS encoder/decoder and a built-in headphone friendly solution to your project or design today!
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