Product category:
Communications ICs (Wireless)
News Release from: Silicon Laboratories | Subject: Si470x
Edited by the Electronicstalk Editorial
Team on 05 April 2005
FM receiver chip boasts all-CMOS
construction
The Si470x FM tuner family is billed as the industry's smallest, most integrated FM broadcast radio tuners delivering the entire FM tuner from antenna input to audio output in 100% CMOS.
According to Silicon Laboratories, the Si470x FM tuner family is the industry's smallest, most integrated FM broadcast radio tuners delivering the entire FM tuner from antenna input to audio output in 100% CMOS Using a digital architecture, the Si470x FM tuners significantly improve performance while reducing component count by more than 90% and board space by more than 60%
This article was originally published on Electronicstalk on 12 Feb 2004 at 8.00am (UK)
Related stories
Monolithic CMOS power amp cuts GSM consumption
The Si4300 is billed as the industry's first monolithic CMOS power amplifier (PA) for GSM cellular applications.
MCU incorporates high-resolution conversion
The C8051F350 is precision mixed-signal microcontroller that integrates an eight-channel, 24bit ADC with a high-speed 8051-compatible CPU.
The Si470x is ideal for cellular phones, stand-alone FM radios, PCs, MP3 players, PDAs, USB FM receivers and a variety of portable audio devices where low power consumption and a small footprint are essential.
The Si4700 FM broadcast radio tuner integrates selectivity filtering, automatic gain control, frequency synthesiser and audio processing.
Whereas traditional solutions require more than 30 components, the highly integrated Si4700 requires only one external supply bypass capacitor and can be implemented in less than 20mm2 board space.
Further reading
Silicon DAAs ease migration to new audio standard
The Si3054 and Si3024 dual-interface silicon direct access arrangements are the industry's first DAAs to configure automatically to either AC97 or the new Intel High Definition Audio interface.
Set top box processor takes soft modems onboard
STMicroelectronics licensed and integrated Silicon Laboratories' system-side silicon direct access arrangement (DAA) technology into its new STi5100 processor.
Silicon Laboratories also offers the Si4701 incorporating a digital preprocessor for the European Radio Data System (RDS) and the US Radio Broadcast Data System (RBDS), enabling data such as the station ID and song name to be displayed to the user.
Silicon Laboratories' Si4700 and Si4701 are fully integrated and tested FM tuners resulting in faster time-to-market and improved manufacturability.
"Silicon Laboratories is the pioneer in RF integration".
"We have leveraged this expertise and core technology across the company to expand the wireless product portfolio to include a compact, high-performance, easy-to-use FM tuner family that addresses the entire handset market as well as the diverse and fast-growing portable audio market", said Ed Healy, Vice President of Silicon Laboratories.
"The Si470x tuner family makes it easy and cost effective for our customers to add FM radio as a standard feature to virtually any application".
Whereas alternative solutions use analogue architectures, the Si470x tuners leverage Silicon Laboratories' patented MCU embedded processing technology and low-IF digital architecture used in its market-leading Aero RF transceivers for GSM/GPRS handsets.
Silicon Laboratories' digital architecture enables the highest level of selectivity and sensitivity performance resulting in reduced interference and improved reception.
In addition, Silicon Laboratories' advanced digital audio processing results in optimum sound quality superior to that of other portable radio tuners.
The Si4700 and Si4701 are available in compact 4 x 4mm 24-pin quad flat no-lead (QFN) packages.
Pricing for the Si4700 begins at $3.00 in quantities of 10,000.
Pricing for the Si4701, which supports RDS/RBDS, begins at $3.45 in quantities of 10,000.
Both products are sampling now with volume production expected in the fourth quarter of 2005.
An evaluation board is available for $150.
• Silicon Laboratories: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Search the Pro-Talk network of sites
