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技术文摘：概念：单芯片手机方案在中国市场前景暗淡

Although TI and Ying Feiling early released plan of odd chip mobile phone, but did not see all the time the product appears on the market. Nevertheless, this did not give up the enthusiasm of industry. Not long ago, gaotong and Silicon Laboratories added odd chip a group of people of same interest again in. Predict mobile phone of odd 2007 chip will appear on the market in great quantities. Nevertheless, also industry public figure thinks, for pursuit tall compositive degree, odd chip plan sacrificed function, apply to only communicate only of the function exceed low end mobile phone, also do not have too large dominant position on cost. And as science and technology maturity and cost drop, low end price of mobile phone sex compares ceaseless promotion, squashed to exceed low end the vivosphere of the mobile phone. Because odd chip plan is on function and cost,do not have very strong dominant position, because this is in China market prospect is dim, staple market may be mixed in South Asia, Africa only the rising market such as South America. Zhoudalin of director of center of research and development of Xia Xin electron: Odd chip plan returns the problem of existence function and cost, well-rounded program is not mixed more TI, Ying Feiling is same, new the odd chip plan of affiliation Gao Tonghe Silicon Laboratories is compositive the parts of an apparatus such as processing of imitate base band, number base band, power source and RF. Connect QSC1100 solution high to send and receive base band modem, RF implement, chip of power source processing and systematic memory are compositive arrived on onefold chip, reduced requires substantive package amount, reduced stock cost, saved the circuit of more than 50% board area. Outside displaying the function such as screen with color besides the chord ring that support can download, QSC1100 solution still supports double at mobile phone of the CDMA2000 on current market communicate time. It uses technology of 65 accept rice, support a variety of frequency, include 450MHz, 800MHz, 1900MHz and 2100MHz. QSC1100 solution print predicts will 2007 second half of the year is rolled out. And the plan of mobile phone of odd chip GSM of Silicon Laboratories, Si4901, it is the 2nd product of series of mobile phone of odd chip of this company AeroFONE, it administers power source unit (interface of controller of PMU) , ARM, batteries and charge base band of circuit, number, imitate base band and radio frequency are sent and receive implement conformity is in a sheet piece in integrated circuit, save the circuit of 65% according to saying to be able to help a system board area. On the foundation of Si4901 chip, need 50 only additionally yuan of parts of an apparatus (basically be passive component) , the complete data detailed list that can make modem of GSM mobile phone (BOM) . According to this company estimation, use Si4901 to be able to make the BOM cost of whole mobile phone is maintained it is in 16 dollars. Si4901 is the Si4905 sheet that Silicon Laboratories company rolled out 2005 the low cost of plan of chip mobile phone derives version, use 10 millimeter of 10 × plastic BGA is enclosed, existing sample is supplied. Odd chip plan is applied to only exceed low end mobile phone, market space is limited nevertheless, industry public figure expresses, this kind of pursuit is tall compositive spent way, it is with sacrifice the function is cost, because this odd chip plan is applied to only,communicate only of the function exceed low end mobile phone. The characteristic of the mobile phone chip of the communication that exhibit dispatch is tall compositive degree, compositive in odd chip circuit of circuit of integrated GSM/GPRS/EDGE base band, power source processing and function of multimedia application processing, nevertheless, exhibit dispatch to did not consider farther compositive radio frequency however. Not long ago, president of the company that exhibit dispatch holds CEO Wu Ping concurrently to say to reporter explanation: "We did not consider compositive RF, the chip of compositive RF can be used at extremely low end only is not medium low end plan. It is Die Size(of itself RF circuit naked a dimension) very big; 2 it is RF craft and digital circuit not quite compatible, when craft is contractible, RF dimension narrows hard, do not reflect the advantage that gives advanced technology. And if Die is too big, application is put without how many space in chip. Because this odd chip plan is cheap only, functional scarcely is best. " Pan Dingjian of manager of science and technology of ministry of plan of outstanding Er mobile phone also points out, odd chip plan is compositive too much function, the function is finite, agree with the particularly low end, mobile phone that provides speech and short message function only. Volume of shipment of market of global mobile phone is forecasted and the mobile phone is fried fervently by the market, but than higher and higher low end in sexual price mobile phone extruding falls, it still has space of how many market suspectable also. Business of division of outstanding Er Asia extends chief inspector Brian Holmes to express: "Mobile phone market is one very big and the market of fractionize, exceed low end the market of the mobile phone exists really, really one part consumer needs simple communication function only enough, we also are paying close attention to the change of this market closely. But change ceaselessly as the lifestyle of people, standard of living rises ceaselessly, demand of machine of most consumer adversary is increasing, it is to communicate not just, they need additional function. " on one page 12 below one page

尽管TI和英飞凌很早就公布了单芯片手机方案，但一向未见有产物上市。不外，这并没有撤销业界的热忱。不久前，高通和Silicon Laboratories又插手到了单芯片阵营中。估量2007年单芯片手机将大量上市。不外，也有业界人士认为，为了谋求高集成度，单芯片方案牺牲了性能，仅合用于只有通话性能的超低端手机，在本钱上也没有太大劣势。而跟着科技成熟和本钱回升，低端手机性价比不竭晋升，挤压了超低端手机的保存空间。因为单芯片方案在性能和本钱上都没有很强劣势，是以在中国市场前景暗淡，首要市场可能只在南亚、非洲和南美等新兴市场。

夏新电子研发中心主任周大林：单芯片方案还存在性能和本钱的问题，成熟方案不多

和TI、英飞凌一样，新插手的高通和Silicon Laboratories的单芯片方案都集成了模拟基带、数字基带、电源治理和RF等器件。高通QSC1100解决方案将基带调制解调器、RF收发器、电源治理芯片和系统内存集成到了单一的芯片上，削减了所需的自力组件数目，降低了物料本钱，并节省了超过50%的电路板面积。除了撑持可下载的和弦铃声和彩色显示屏等性能外，QSC1100解决方案还撑持两倍于当前市道上CDMA2000手机的通话时候。它采用65纳米工艺，撑持多种频率，包括450MHz、800MHz、1900MHz和2100MHz。QSC1100解决方案样片估量将于2007年下半年推出。

而Silicon Laboratories的单芯片GSM手机方案—Si4901，是该公司AeroFONE单芯片手机系列的第二款产物，它将电源治理单元(PMU)、ARM节制器、电池接口和充电电路、数字基带、模拟基带以及射频收发器整合在一个单片集成电路中，据称能帮助系统节省65%的电路板面积。在Si4901芯片的根本上，此外只要50个元器件(主如果无源元件)，就可组成GSM手机调制解调器的破碎材料清单(BOM)。据该公司估量，采用Si4901能够使整个手机的BOM本钱维持在16美元之内。Si4901是Silicon Laboratories公司2005年推出的Si4905单芯片手机方案的低本钱衍生版本，采用10×10毫米塑料BGA封装，现有样品供给。

单芯片方案仅合用于超低端手机，市场空间有限

不外，有业界人士暗示，这种谋求高集成度的做法，是以牺牲性能为价钱，是以单芯片方案仅合用于只有通话性能的超低端手机。展讯通信的手机芯片的特点是高集成度，在单芯片中集成了破碎的GSM/GPRS/EDGE基带电路、电源治理电路及多媒体应用措置性能，不外，展讯却没有思忖进一步集成射频。不久前，展讯公司总裁兼CEO武平对记者诠释说：“咱们没有思忖集成RF，集成RF的芯片只会用于极低端而不是中低端方案。一是本身RF电路die size(裸片尺寸)很是大；二是RF工艺和数字电路不太兼容，工艺缩小的时辰，RF尺寸难以缩小，表现不出前进前辈工艺的劣势。而且die太大的话，芯片中没有几多空间放应用。是以单芯片方案只是重价，性能必然不是最好。”杰尔手机方案部科技司理潘定建也指出，单芯片方案集成了太多性能，性能有限，适合于特别低端、仅具语音和短信性能的手机。

寰球手机市场出货量猜测

而尽管超低端手机被市场炒得炽热，但在性价比越来越高的低端手机挤压下，它还有几多市场空间也值得思疑。杰尔亚洲区营业拓展总监Brian Holmes暗示：“手机市场是一个非常大而且细分的市场，超低端手机的市场简直存在，确实有一部门生产者只要要简单的通信性能就够了，咱们也在慎密亲密存眷这个市场的转变。但跟着人们的糊口体例不竭改观，糊口程度不竭进步，大大都生产者对手机需求越来越多，不仅仅是通话，他们需要额外的性能。”
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发布日期：2009-8-4　【返回】