AD1672APZ_AD22100KRZ-REEL7 Introduction

688367214G changes life, 5G changes society, but this change is not so easy. . This reflects, to a certain extent, the speed at which 5G communications are advancing at the individual user level. According to the China Academy of Information and Communications Technology, domestic 5G mobile phone shipments from January to April 2021 will be 91.267 million units, accounting for 72.7% of the overall market, a year-on-year increase of 38.4%. 2020 is the first year of global 5G commercialization as defined by ITU, and China will be a year earlier.

The TPS62840 joins TI's portfolio of highly integrated low-IQ DC/DC converters, enabling designers to maximize power output in the smallest possible solution size.

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Compared with 4G, 5G has clearly planned three application scenarios at the initial stage: enhancing mobile broadband, its peak rate will be more than 10 times that of 4G network; massive machine communication will realize the whole process from consumption to production, from human to human. Full scene coverage to objects; ultra-reliable and low-latency communication, the communication response speed will be reduced to millisecond level. . However, 5G is not limited to mobile phones. In the era of the Internet of Everything, highways must be built in advance. Therefore, 5G is indisputably the first of new infrastructure.

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The resonator used in the Ladder type (SAW is also mentioned later) includes series and parallel. A series resonator plus a parallel resonator is called a stage, and the entire ladder type filter can be composed of several stages. .

However, the thin film structure needs to be strong enough to be unaffected by subsequent processes. Compared with BAW-SMR, a smaller part of the membrane type is in contact with the underlying substrate, which is not easy to dissipate heat.

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