Product category:
Communications ICs (Wireless)
News Release from: Silicon Laboratories | Subject: Si472x single-chip FM radio transceiver
Edited by the Electronicstalk Editorial
Team on 14 February 2007
Single chip FM radio transceiver on
display
Silicon Laboratories is demonstrating a single-chip FM radio transceiver family at 3GSM World Congress.
Silicon Laboratories is demonstrating a single-chip FM radio transceiver family at 3GSM World Congress The patented digital architecture of the Si472x transceiver combines the functions of the Si470x FM radio receiver with the Si471x FM radio transmitter in a single 3x3x0.55mm package
This article was originally published on Electronicstalk on 12 Feb 2004 at 8.00am (UK)
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The Si472x FM transceiver is optimised for portable applications, offering the ability to both receive FM broadcasts over the air and create a wireless audio link from the device to any FM receiver.
The Si472x is intended for use in mobile phones, digital media players, portable gaming devices and satellite receivers, and GPS/navigation devices.
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The Si472x is layout compatible with Silicon Laboratories' new Si473x AM/FM radio receiver, the Si470x FM radio receiver and the Si471x FM transmitter solutions, allowing a single PCB layout to seamlessly support all these options.
The Si472x supports analogue and digital audio interfaces to simplify customer design, speed up time to market and offer novel features such as recording FM broadcasts for ring tones.
The digital audio interface also reduces system power and extends battery life by eliminating the need for redundant data convertors.
The Si472x provides selectivity and sensitivity, as well as adjustable seek, soft mute and stereo blend, fundamental to superior audio performance in highly variable FM broadcast radio environments.
The high performance Si472x also enables unmatched volume output stability on the receiving system and increases transmitted audio fidelity through automatic audio dynamic range control.
The Si4721 is claimed to be the only single-chip FM radio transceiver with transmit and receive support for the European Radio Data System (RDS) and the USA.
Using the RDS transmit function, the Si472x can broadcast the song name, artist and album to create a visual user experience similar to a portable media player.
The Si472x also works with an integrated antenna for both receive and transmit, eliminating the need for a headphone cable when using a Bluetooth headset.
In addition, having both transmit and receive functions in the device allows consumers to share songs wirelessly between players.
The Si4720 is sampling now, and the Si4721 is available for sampling in May 2007.
Pricing for the Si4720 begins at $5.26 in quantities of 10K.
Pricing for the Si4721, which supports RDS/RBDS, begins at $6.31 in quantities of 10K.
An evaluation board is available for $150.
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