MSP430FR6047: MSP430FR6047

Aleksei

Part Number: MSP430FR6047
Other Parts Discussed in Thread: TIDA-01486

Hello!

I am going to design the heat-meter for water application with MSP430FR6047 on board. I need measure flowrate in 4 flowmeters with my device. Can I use one chip MSP430FR6047 with additional multiplexors as shown in the figure below?

Also I am not sure that TX signal with amplitude 3.3 V is enough to get good signal with my transducers (I use transducers with 1.5MHz excitation frequency). Can I use driver to increase TX signals to 24V, and how can it affect the matching impedance circuits in MSP?

Thanks in advance

Best regards,

Aleksei

over 5 years ago

0 Winter Yu over 5 years ago

TI__Genius 12315 points

Hello,

Please refer to the TI reference design TIDA-01486.

0 Aleksei over 5 years ago in reply to Winter Yu

Prodigy 51 points

Thank you for answer, this design can resolve my problem!

If my transducers have resonant impedance = 45 Ohm, and resonant capacitance = 1800 pF, should I change the resistors (200 Ohm) and capacitances (1000 pF) in tida-01486 to these values respectively to deliver maximum energy to transducers?

0 Winter Yu over 5 years ago in reply to Aleksei

TI__Genius 12315 points

Hello,

Yes, you need match the resistors and capacitances for beast performance.

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MSP430FR6047: MSP430FR6047