SN74HC373DWR_MDH12577C-330MA=P3 Guide

The TI BAW oscillator is an electronic oscillator circuit that utilizes the piezoelectric effect to generate a stable electronic signal through the mechanical resonance of a vibrating miniature acoustic resonator (BAW). This precise high-frequency signal provides a clock and timing reference for electronic systems.

From a regional perspective, Japan closed the largest number of fabs. It is reported that Renesas expects to close two more 150mm fabs in 2020 or 2021. Take Renesas as an example. The company's two recently closed fabs are both 150mm, including a fab in Kochi Prefecture, Japan, which produces analog, logic devices and some obsolete micro components. In addition, Renesas has adjusted its factory in Otsu, Shiga Prefecture, Japan, to manufacture optoelectronic devices.

SN74HC373DWR_MDH12577C-330MA=P3

AS5600-ASOM Other ICs

TPS74801DRCR TPS22918DBVR TLV62569ADRLR TLV62569ADRLT TPS61230ARNST.

TPS22919DCKR CSD23381F4 CSD23280F3 LM76002RNPR LM76002RNPT.

TPS563209DDCR TPS563209DDCT TS3USB221RSER LM339APWR MAX3232IPWR.

TPS65131TRGERQ1 TPS73701DCQR TPS2421-2DDAR TPS61022RWUR TPS61041DBVR.

SN74HC373DWR_MDH12577C-330MA=P3

LQH43MN152K03L

"The new BAW resonator technology is important because TI is integrating it into its silicon products, reducing design time, solution size and component cost," said Philip Solis, research director for connectivity and smartphone semiconductors at IDC.

DRV8876NPWPR DRV8872DDARQ1 DRV5013ADQDBZT DRV5013ADQDBZR TPD4E001DRLR.

TPS630701RNMT TPS630702RNMR TPS54218RTER TPS92692PWPR TPS56C230RJER.

. In order to keep the acoustic wave in the piezoelectric film to oscillate, there must be sufficient isolation between the oscillating structure and the external environment to obtain a small loss and a large Q value. On the other side of the oscillating structure, the acoustic impedance of the piezoelectric material is not much different from that of other substrates (such as Si), so the piezoelectric layer cannot be deposited directly on the Si substrate. The propagation speed of sound waves in solids is ~5000m/s, which means that the acoustic impedance of solids is about 105 times that of air, so 99.995% of the sound wave energy will be reflected back at the boundary between the solid and the air, which is the same as the original wave (incident wave). together to form a standing wave.

SN74HC373DWR_MDH12577C-330MA=P3

There are many types of BAW filters, including ladder type filter, lattice type filter, stacked crystal filter and coupled resonator filter. Only the ladder type and lattice type are briefly introduced here. The BAW filter can connect multiple resonators according to a certain topology.

The BAW filter is more suitable for frequencies above 2.5GHz. The manufacturing process of the BAW filter is also very consistent with the existing IC manufacturing process, and is suitable for overall integration with other active circuits. .

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