The market of Chinese mobile phone design becomes the world of the domestic audio frequency power amplifier
The mobile phone that China designs is basically the world of the domestic audio frequency power amplifier now, the peripheral components and parts localization trend on the mobile phone is very obvious. The microelectronic general manager Yang Yang’s awn of open core shows, ” the domestic audio amplifier at present has been already in the characteristic, there is break-through greatly at quality and price, especially on the application of mobile phone, some respects of Chinese audio amplifier company have already led the American-European manufacturer. ”
He thinks, the Chinese audio frequency IC has already had advantage greatly in imitating at present. Because Chinese audio frequency IC manufacturer pays attention to lowering costs even more, will adopt the comparatively advanced design method in the design in order to lower costs. In addition lowering the noise, reduce EMI, has already to improve PSRR,etc. had a very great advantage too.
Yang Mang says, ” the price that the a little electronic audio power amplifier chip of open core is cheap with its excellent characteristic has already got application on the main brand plane. ”
However, the reason to succeed in capturing the market of mobile phone to the Chinese audio frequency IC manufacturer for electronic CEO Sun the Red Army that Shanghai ends, but there is another view, he thinks the technology of the American-European company is to advance, what they lost is other things. He says: “The power amplifier respect of the audio frequency, the American-European products are very good on the initiative spirit, leading the trend in the industry constantly, worth us study, they introduce a lot of style behind the chip, pass one or two years often, among them a few will be adopted by the mobile phone scheme of China. The chip that and this fund is adopted is finished designing compatibly by China IC Company at the same time, and expand to more mobile phone design companies rapidly. ”
He points out: “The index is actually not predominant of Chinese company, but high target is impracticable sometimes. Cite a very simple example, usually exquisite THD index of the audio amplifier, for example, it accomplishes 0.01% to be very much right, but in the application of the mobile phone, is such a high index meaningful It is totally unnecessary to be so high. So China IC design company, presses close to the customer’s demand even more, is good at trading off. For example customer hope sound volume to be large, how broadcast, happen big music of sound volume in mobile phone, how to let the power amplifier output larger power, this’s what the Chinese customer pays close attention to. ” His conclusion is: “Though the domestic chip is still followers’ identity technically, in reality, in fact domestic IC left ” Avoid horse-racing in the field ” Way,most top in both sides products is obviously America and Europe lead,but itself is for new product, spend people less, has not popularized yet, the price is expensive too, domestic IC matters either. And to large-scale applied chip already, domestic IC there are improvements at the characteristic in fact, as to the concrete one, it is ” gets on horse ” of domestic IC Or ” China and Malaysia ” Can surpass American-European IC on all-round property ” Get down from horse ” (used after an attribute). ”
Tags: audio amplifier, Power amplifier
