CCS/MSP430FR6047: Lowest input signal in MSP430FR6047 EVM

Hi,

Do you have any update?

Best Regards

Koki

Hi Koki,

What is your means? using a small input to test the performance?

Thanks!

Best Regards

Johnson

Hi Johnson,

Yes, I have a test whether small input is detected or not.

In the Data Sheet P.70, minimum input that PGA can detected is 30mVpp. 

So 8mVpp can not detected, right?  

https://www.tij.co.jp/jp/lit/ds/symlink/msp430fr6047.pdf

Thanks,

Best Regards

Koki

Hi Koki,

What's the applicaiton? MSP430 USS module using a 12-bit ADC(V rfe = 755mv), thus this USS be able to detect the lower voltage, such as :7mv.

Maybe you can do some test.

Thanks!

Best Regards

Johnson

Hi Johnson,

I use Ultrasonic Sensing Design Center.

> MSP430 USS module using a 12-bit ADC(V rfe = 755mv), thus this USS be able to detect the lower voltage, such as :7mv.

PGA input range is more than 30mVpp, right.

So original received waveform is needed more 30mVpp.

Is this idea correct?

If I make a mistake, please point it out.

Thanks,

Best Regards

Koki

Hi,

Do you have any update?

Best Regards

Koki