Silicon introduces first highly Integrated amplitude modulation / FM radio set chip
Silicon Laboratories claims to expand the radio audio frequency products, increases Si473x amplitude modulation / FM radio set chip series. Si473x can modulating amplitude /last consuming electronic product FM radio set function, such as clock, porable radio set, the stereo, MP3 broadcaster, multi-functional base and cellular telephone of family. Si473x is first highly Integrated amplitude modulation / FM radio set chip, it will all integrate to the single chip from receiving the input signal to output all functions of the voice signal. Traditional amplitude modulation / FM radio set is designed because bulky, with high costs and producing the difficultily, make the small-scale walkie application of a lot of high yield unable to offer the amplitude-modulation receiver function. Si473x chip only takes two external components and parts and circuit board space of 0.15 square centimeters, considerably less than needing 50 multiple components and parts and traditional solution of area of 10 square centimeters. Benefit from the advanced digital framework, Si473x simplifies and designs and produces the work by a wide margin, it can be that each product save the calibrate time of several minutes that it does not only need amplitude modulation / FM radio set chip this that adjust manually. Traditional amplitude modulation / frequency modulation solution may need the tune-up manually of 4 stages, Si473x can support various aerials through chip built-in variodenser and automatic alignment function, improvement by a wide margin of the production efficiency of making the flowing water collinear. Si473x offers preferably amplitude modulation and searching and adjusting capacity of radio station of the frequency modulation, can reduce the interference and improve the radio reception result. It also has excellent sum frequency of degree of sensitivity of radio reception The selectivity of the avenue, it is unable to search for to receive other amplitude modulation / FM radio set or distinguish A lot of radio stations known. Si473x has tone quality which leads the market, offer the soft squelch muting and other audio frequency of variable type to strengthen the function. Si4731 only supports too European Radio Data System (RDS) And U.S.A. Radio Broadcast Data System (RBDS) Canonial amplitude modulation / FM radio set chip. The function can name,etc. information display in LCD screen of product any radio station and song, offer user vision of similar walkie media broadcaster to experience. "There are various music, news, sport and talking program in the amplitude modulation broadcasting, the signal cover is extremely wide, there are a lot of users in all parts of the world. " Silicon Laboratories executive vice president Tyson Tuttle shows, "we utilize CMOS radio frequency and knowledge of composite signal which lead the market to develop easy to design, accord with cost-effective and high-performance solution out, it can be offered amplitude modulation and FM radio set function for all kinds of application such as cellular telephone and MP3 broadcaster by manufacturers. "
