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As soon as the news came out, the whole country was in an uproar!

What the?!

Little Japan has bullied us like this, your Aerospace Industry Corporation, as a central enterprise, is still chasing behind other people's butts and begging others to cooperate?

The common people suddenly stopped doing it. Pen ~ fun ~ pavilion www.biquge.info

When we figure out the original partner of the Aerospace Industry Corporation: Tesla Motors of the United States has "reverse" Mitsubishi's 4G63 engine, and the performance of this model 4L20 engine is better than Mitsubishi's original 4G63, and now it has entered the final stage of mass production, but the old men of the Aerospace Industry Corporation insist on pushing off the project that is about to be mass-produced, and desperately lick the ass of the Japanese. National sentiment was immediately aroused: what exactly are you trying to do at the Aerospace Industries Corporation? Is your Aerospace Industry Corporation still not our Chinese own enterprise?

For the sudden turn of public opinion, the Aerospace Industry Corporation was completely caught off guard, they never thought that this wave of anti-Japanese in China would suddenly burn on their heads, and for a while they were even a little aggrieved: We didn't do anything, okay?

But the common people don't care about this, they only know that since the end of the Qing Dynasty, little Japan has bullied us, and it was not until 1945 that little Japan was kicked out, and little Japan committed a lot of blood debts on our land, and it has only been half a century. It's a shame that you still want to boast of being a state-owned enterprise!

As for the other party, Tesla Motors, whether it is the common people or public opinion, no one thinks that there is anything wrong with Tesla Motors "learning" Mitsubishi's 4G63 engine. On the contrary, the prevailing view is that for more than half a century. How much money and good things did you little Japan take from our family? If we are defeated in World War II, we will not be compensated, so we will charge a little interest first.

As for whether Tesla cars "learned" the Mitsubishi engine, this is in line with international practice. Who's going to take care of him? Anyway, everyone only knows that Tesla cars are angry for us, and that's good - to say an aside, after this incident, even the image of Tesla has been recognized by the people a lot.

For a time, the media was full of calls for the Aerospace Industry Corporation to end its secret collusion with Mitsubishi Motors and honestly cooperate with Tesla Motors, and the pressure on the Aerospace Industry Corporation increased.

Although they knew that Lin Zheng must be making trouble behind this, and the leaders of the Aerospace Industry Corporation hated it, there was nothing they could do about Lin Zheng, and they said that they wanted to end the cooperation with Tesla Motors. They also said that they were going to cooperate with Mitsubishi Motors of Japan, and they couldn't help but admit what they said, right?

As for Boss Lin Zhenglin, what is he doing at this time?

Well, Boss Lin is in the Electronics Research Institute at the moment, staring at the most heavyweight mobile phone of the group in the second half of the year...... A phone in development, to be precise.

In Lin Zheng's definition, this is a semi-smart phone with GPRS Internet access, which can be equipped with ICQ mobile phone client and ICQMusicPlayer player, and has JA&VA function. You can install a variety of practical JA&VA software, which means that this phone can chat ICQ, listen to songs, surf the Internet, and install all kinds of JA&VA software, to put it bluntly. Before the advent of smartphones in the true sense of the word, in terms of function, this mobile phone was infinitely close to the smartphone at the beginning of the next century. The advent of this mobile phone is undoubtedly the absolute second kill of all mobile phones in the world.

But now. Boss Lin was frowning: "What about the audio decoding scheme?" Why didn't the DAC tell me when it was removed? ”

"Mr. Lin, we think that a MSA3507D decoding chip is enough. There is no need to go to DAC at all, decoding chip plus DAC chip, this is too luxurious," Wang Bo, the project development engineer who presided over this mobile phone, felt that there was no need to do this, and it was a shameful waste to go to DAC again: "If you put more effort into tuning, the sound quality of this mobile phone is about to catch up with CD, I don't think it's necessary at all." ”

Lin Zheng didn't know that in fact, it was enough to have mas3507d, mas3507d not only embedded riscdspcore on a chip, but also inherited the power manager, program memory, clock manager, audio baseband processor, and i2s, i2c, pio and other interfaces, the powerful functions of this chip make it easy to complete mp3 audio decoding, from this point of view, there is really no need to go to dac.

But Lin Zheng didn't see it that way, shook his head and said: "No, DAC has to, Wang Gong, do you remember the definition of this mobile phone given by the group when it decided to launch this project?" ”

"Uh......" If it wasn't for Lin Zheng asking this question, Wang Bo would have really forgotten, and now that Lin Zheng mentioned this coldly, he really couldn't think of it for a while, frowned and thought for a while, and finally said with some uncertainty: "...... To be the best mobile phone player with the best sound quality? ”

"No," Lin Zheng shook his head: "It's a mobile phone with sound quality comparable to that of a high-end CD player, Wang Gong, remember, sound quality!" Sound quality is the first pursuit of this mobile phone, and it is also the main core function of this mobile phone, we have the best tuner in the industry, we have keenly grasped the future of the market, I don't want a product that is actually castrated, DAC must have, that is, the previously determined MAS3507D plus DAC3550A scheme. ”

Lin Zheng insisted on DAC and specified the use of DAC3550A, of course, there is a reason, this is not only because the DAC3550A can support the sampling rate from 8KHz to 50KHz, but also because the DAC3550A has an internal oscillator and an integrated headphone amplifier, in the playback of MP3 music, it is equivalent to integrating the signal amplification and signal playback of the playback structure together, making the structure more compact.

Not only is it a high-quality multi-sample-rate DAC that matches the MAS3507D, but it also integrates the last two parts of the MP3 amplifier structure, and it also leverages Micronasintermetall's unique multi-bit ∑-△ technology to achieve an eye-popping 103dB of signal-to-noise ratio for D/A conversion.

Suffice it to say, the DAC3550A and MAS3507D are a natural pair.

If you don't have such a good "talent", it's simply a tyrannical thing, which Lin Zheng absolutely can't allow.

He was annoyed, not only because of Wang Bo's self-assertion, but also because Wang Bo almost delayed the group's entire product promotion plan...... Fortunately, Lianchuang Technology has now established a complete set of scientific and reasonable R&D systems, and when Wang Bo insisted on removing DAC, this system alerted Lin Zheng.

"But...... Is it necessary? Wang Bo hesitated and said: "I tried, the difference between adding DAC and not adding DAC is very small, according to the user usage analysis data of CD and cassette Walkman provided by the group, the users of these Walkman products are in a relatively noisy environment for 70% of the use time, and MAS3507D is enough to provide them with good sound quality, and they don't need DAC at all." ”

To tell the truth, Wang Bo's words are not unreasonable, but Lin Zheng patted him on the shoulder and said with a smile: "Wang Gong, your idea is not wrong, but you are thinking about the problem from the perspective of a developer, not from the perspective of a marketing person, which is a big difference." ”

"Huh?" Wang Bo pushed his glasses, a little puzzled, and his eyes eagerly looked forward to Lin Zheng being able to give him an explanation.

"The reason is actually very simple, the combination of decoding chip and DAC, we can confidently say to our users when we are in the market, our mobile phone is not inferior to the current mainstream CD Walkman products in terms of sound quality, our decoding chip is MAS3507D, and at the same time it is equipped with a DAC chip with a signal-to-noise ratio of up to 103dB......"

"But I'm afraid they don't understand this at all, right? How many people can understand what this number represents? Wang Bo interrupted Lin Zheng's words, and his expression became more and more confused.

"That's right, they don't understand, they don't know what this thing means, but that's okay, as long as they think it's very powerful, just like when many people go to the mall to buy something, this function may not be used, but since others have it, then I must have it...... This falls under the category of consumer psychology. ”

Is that so? Wang Bo was a little puzzled, but when he thought that his family went out to buy things, he seemed to really do it, and he must choose the most functional one when he bought goods, although many functions may not be used in a lifetime, but it doesn't matter, in the words of his wife: "I know that I basically can't use it, but it doesn't matter if I don't use it, that's my business, the problem is that it can't be without, in case when I use it?" ”

I see.

Although some technical personnel can insist on stubbornness, Wang Bo still understands a truth after all, that is, the product must serve the market and the company's profits after all, and after understanding this, Wang Bo understands how much impact his previous stubborn insistence almost caused to the company, and his face was red with shame: "Mr. Lin, I'm sorry, I almost ......

"It's okay, you're also trying to save costs for the company, I can understand this," Lin Zheng waved his hand to show that he wasn't angry, "But you still made a mistake after all, so you still have to punish you, you can understand this, right?" (To be continued.) )

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