STM6824RWY6F_BQ24166RGER Guide to other passive components

Kim Wong, vice president and general manager of TI's High-Speed Data and Clocking Group, said: "The clocking requirements for future communications infrastructures will far exceed the device performance of current quartz crystal resonators. By integrating TI's BAW resonators directly into clocking devices , we can achieve ultra-low jitter performance and resiliency to meet the increasingly stringent requirements for data pipeline resistance to vibration and shock in the process of communication transformation.”

Texas Instruments (TI) said it will close its last two 150mm (6-inch) wafer fabs in the next few years while building its next 300mm (12-inch) fab at its Richardson, Texas, fab. "This will be a multi-year program that is expected to be completed no later than 2023 to 2025," Dave Pahl, head of investor relations at Texas Instruments, said on the conference call.

STM6824RWY6F_BQ24166RGER Other passive components

TFP401APZP Interface IC

Ray Upton, TI's vice president of connected microcontrollers, explained that new technologies are critical to "moving large amounts of data in a stable manner," improving high-performance communications. .

"Quartz crystals require additional components to extend their accuracy -- over time -- as their performance changes beyond controllable temperature changes," he added. In addition, Solis said, "using a BAW resonator is more efficient than using a quartz crystal. precise.

In this case, BAW resonator technology offers TI a huge advantage by eliminating the need for external components mounted on the PCB. Today, timing often requires a quartz crystal. "Everyone uses quartz crystals for clocks," Solis said.

TPS74801DRCR TPS22918DBVR TLV62569ADRLR TLV62569ADRLT TPS61230ARNST.

STM6824RWY6F_BQ24166RGER Other passive components

GCM31CR71C106MA64L

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The overall effect of this structure is equivalent to contact with air, and most of the sound waves are reflected back. This structure is called BAW-SMR (Solidly Mounted Resonator), as shown below. The reflector consists of several layers of alternating high and low impedance layers. For example, the first layer has a large acoustic wave impedance, the second layer has a small acoustic wave impedance, and the third layer has a large acoustic wave impedance, and the thickness of each layer is λ/4 of the acoustic wave, so that most of the wave will be reflected back and superimposed with the original wave. One way is to form a Bragg reflector under the oscillating structure to reflect sound waves into the piezoelectric layer.

The technology, which also enables high-precision and robust communication between IoT devices, can now be developed in a less bulky form, said Kim Wong, vice president of high-speed data and clocking at TI.

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STM6824RWY6F_BQ24166RGER Other passive components

In the Airgap type, an auxiliary layer (sacrificial support layer) is deposited before the piezoelectric layer is formed, and finally the auxiliary layer is removed to form an air gap under the oscillating structure. ?? 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.

. The resonator used by the ladder type (SAW also mentioned at the end) 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.

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