AD1674JN_AD22100ST 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.

Texas Instruments (TI) (NASDAQ: TXN) has been making progress for decades. We are a global semiconductor company that designs, manufactures, tests and sells analog and embedded processing chips.

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Time-to-market is accelerated as designers eliminate the need to screen, calibrate and assemble external quartz crystals. TI's new product announcement includes an industry-first crystalless wireless microprocessor (MCU) that integrates a TI BAW resonator in a package. . Design engineers can use this MCU to achieve simpler and smaller designs while improving performance and reducing cost.

?? Because only the edge part is in contact with the underlying substrate, this structure is relatively fragile when under pressure, and similar to the membrane type, the heat dissipation problem also needs attention. In the Airgap type, an auxiliary layer (sacrificial support layer) is deposited before the piezoelectric layer is formed, and then the auxiliary layer is removed to form an air gap under the oscillating structure.

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