LPC1778FBD144K_AD1974WBSTZ Introduction

Because analog ICs are the bridge between the physical world and the digital world, analog chips are widely used in end markets such as industrial, automotive, consumer and communications industries. Basically, where there is electricity, there is a demand for analog chips.

The HDC1080 is a digital humidity sensor with integrated temperature sensor from Texas Instruments that provides excellent measurement accuracy with ultra-low power consumption. The HDC1080 supports a wide operating supply voltage range and offers low cost and low power consumption for a variety of common applications compared to competing solutions. . Humidity and temperature sensors are factory calibrated.

AD10242TZ_AD1974WBSTZ

LPC1778FBD144K

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.

·Selectable mode can improve performance and reduce overall cost: The selectable mode and stop function of TPS62840 can improve noise performance and reduce signal distortion. These advantages can help reduce solution cost because designers do not need to use more expensive precision signal chain components, sensors or radio solutions to perform the same function to achieve system requirements. .

The basic structure of the BAW filter is that two metal electrodes sandwich a piezoelectric film (the thickness of the Quartz substrate is 2um at 2GHz), and the acoustic wave oscillates in the piezoelectric film to form a standing wave.

For the first time in the industry, TI uses this technology for integrated clock functions. 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: . • In the past, BAW resonator technology has been used to filter signals in communication technologies such as smartphones.

AD10242TZ_AD1974WBSTZ

LPC1778FBD144K

TPS60403DBVR CSD17313Q2 TPS259571DSGR TPS259571DSGT TLV3202AQDGKRQ1.

TPS560430XFDBVR XTR117AIDGKR CSD15380F3T MSP-EXP432P401R TPS2051BDBVR.

DRV8876NPWPR DRV8872DDARQ1 DRV5013ADQDBZT DRV5013ADQDBZR TPD4E001DRLR.

"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.

AD10242TZ_AD1974WBSTZ

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

Physically, waves are mainly divided into two types, one is electromagnetic wave, which does not require any medium, but propagates through the periodic oscillation of the electric and magnetic fields generated by the initially charged particles. It can also propagate in a vacuum. Radio waves, microwaves, visible light, X-rays, and gamma rays are all electromagnetic waves.

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