OPA2365AIDR Op amp IC_DE1E3KX222MN4AP01F Introduction

With crystal oscillation, precise rhythm is achieved. But when these expensive crystals wear out, they can vibrate or jump, affecting the accuracy of timekeeping.

Texas Instruments currently has 15 wafer fabs in 9 countries, of course, these plants include outdated capacity that is about to close, as well as new 300mm capacity. In April 2019, Diodes completed the acquisition of Texas Instruments' 150mm/200mm wafer fab (GFAB) in Greenock, Scotland, UK, as part of TI's strategy to gradually abandon outdated capacity.

OPA2365AIDR op amp IC_DE1E3KX222MN4AP01F

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In order to gain an in-depth understanding of TI's new breakthrough in BAW technology, let's start with the principle of BAW filter: . For the first time in the industry, TI uses this technology for integrated clock functions. • In the past, BAW resonator technology has been used to filter signals in communication technologies such as smartphones.

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OPA2365AIDR op amp IC_DE1E3KX222MN4AP01F

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"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.

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In short, advances in BAW technology have brought "higher performance, simpler design, lower cost and smaller size" to wired and wireless networks, Wong explained.

When asked why nobody in the industry has built something like a BAW resonator, Upton said, "It's very difficult to develop. But it's not easy to convert electrical energy into mechanical acoustics while keeping the signal stable and robust within a clean clock." TI has been involved in MEMS research for many years.

OPA2365AIDR op amp IC_DE1E3KX222MN4AP01F

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. However, the thin film structure needs to be strong enough to be unaffected by subsequent processes.

??Membrane Type is etched from the back of the substrate to the surface (that is, the bottom electrode surface) to form a suspended thin film and a cavity. ?? There is also a method called FBAR (Film Bulk Acoustic Resonator), including Membrane type and Airgap type. .

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