Silicon Laboratories Introduces Smallest, Highest Performance FM Broadcast Radio Tuner Family
Austin, T.X.Silicon Laboratories Inc. announced the Si470x FM tuner family, the industry's smallest, most integrated FM broadcast radio tuners delivering the entire FM tuner from antenna input to audio output in 100 percent CMOS. Using a digital architecture, the Si470x FM tuners improve performance while reducing component count by more than 90 percent and board space by more than 60 percent. 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 synthesizer and audio processing. While traditional solutions require more than 30 components, the Si4700 requires only one external supply bypass capacitor and can be implemented in less than 20 mm2 board space. Silicon Laboratories also offers the Si4701 incorporating a digital pre-processor for the European Radio Data System (RDS) and the U.S. Radio Broadcast Data System (RBDS), enabling data such as the station ID and song name to be displayed to the user. The 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."
While alternate solutions use analog architectures, the Si470x tuners leverage the company's patented MCU embedded processing technology and low-IF digital architecture used in its market-leading Aero RF transceivers for GSM/GPRS handsets. A digital architecture enables the highest level of selectivity and sensitivity performance resulting in reduced interference and improved reception. In addition, advanced digital audio processing results in optimal sound quality.