Product category:
Communications ICs (Wireless)
News Release from: Silicon Laboratories | Subject: Si4734/35
Edited by the Electronicstalk Editorial
Team on 14 November 2007
AM/FM receiver ICs have all bands
covered
Devices not only simplify the design of existing SW and LW radios but also enable the addition of SW/LW capability to consumer electronics devices.
Silicon Laboratories has expanded its broadcast audio product line to include the industry's first fully integrated AM/FM radio receivers with short-wave (SW) and long-wave (LW) band coverage The high-performance Si4734 and 35 integrate the entire receiver from antenna input to audio output reducing size and solution component count by more than 90% compared with existing implementations
This article was originally published on Electronicstalk on 12 Feb 2004 at 8.00am (UK)
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In a tiny 3 x 3mm package, the Si4734/35 not only simplifies the design of existing SW and LW radios but also enables the addition of SW/LW capability to consumer electronics devices such as handsets and MP3 players, broadening the reach of SW and LW broadcast content used by consumers in Europe.
The unprecedented integration of the Si4734 and 35 ultimately reduces design time, allowing customers to bring their products to market more quickly with a higher level of quality.
The Si4734/35 use a patented digital low-IF architecture with an on-chip digital signal processor (DSP) that enables a variety of features and significant performance enhancements not possible using traditional analogue architecture-based products.
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The receivers offer fully automated digital tuning in all supported bands, including 1kHz step sises, and selectable channel bandwidth filters for optimal audio quality.
In addition, the Si4734/35 family does not require factory-aligned components, further improving reliability and reducing manufacturing cost compared with existing receivers which can require up to three stages of manual tuning.
The high level of integration and functionality provided by the Si4734/35 family not only simplifies design but also enhances the consumer experience.
Unmatched seek performance allows customers to rapidly find all available stations with no false stops.
Superior selectivity and a highly linear front end enable consumers to hear more stations in crowded broadcast environments.
These features are vital differentiators for short-wave frequencies where there are hundreds of valid broadcasters in a very wide spectrum.
The Si4734 and 35 are EN55020 certified, and the only radios to offer AM/FM/SW/LW bands in a single IC with FM RDS decode (Si4735), providing station and song identification to listeners.
"With only a few external components and a simple command interface, the Si4734/35 can quickly replace existing solutions to deliver higher quality radios with more features and reduced system cost", says Mark Thompson, general manager of broadcast audio products.
"The Si4734/5 is another good example of Silicon Labs leveraging proven technology and IP to expand into new markets and ultimately enhancing the end user's experience".
The Si4734 and 35 are footprint compatible with the Silicon Labs portfolio of FM receivers, AM/FM receivers, FM transmitters and FM transceivers.
This allows customers to easily and cost-effectively configure their products with a range of features appealing to different end-customer segments.
A full reference board with complete schematics, layout files and a robust software development environment is available to customers to facilitate evaluation and design.
Samples of the Si4734 and Si4735 are available now in compact 3 x 3mm 20-pin quad flat no-lead (QFN) packages.
Pricing for the Si4734/35 begins at US $3.27 in quantities of 10,000.
An evaluation board is available for US $150.
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