MSP430FR6047: which one is better option Resonator or Crystal.

Vinayak Potadar

Part Number: MSP430FR6047

Hello TI team,

We are using MSP430-FR6047 in our device and. we wanted to know about why TI has suggested to use 8MHz Resonator instead of 8MHz Crystal for USS.

we have always doubt whether to go with Resonator or with Crystal.

Please clear our doubt.

Thanks in advance.

over 3 years ago

0 Dennis Lehman over 3 years ago

TI__Guru 68121 points

Hi Vinayak,

I assume this is a water application. Depending on the operating range, the resonator provides sufficient stability and is lower cost than crystal. If you need stability over wider operating temperatures, then a crystal will be more accurate.

Also, there is a feature in the library to use the LFXT 32KHz to calibrate the resonator over time and temperature. This is described in the Ultrasonic Water Meter reference design, table-2 on page 15.

0 Vinayak Potadar over 3 years ago in reply to Dennis Lehman

Prodigy 200 points

Thank you Dennis. we will check.

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MSP430FR6047: which one is better option Resonator or Crystal.