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PSoC 5, 3 & 1

Anonymous
Not applicable

Is it possible to wake from sleep then:

   

1. Power up the ADC and OpAmps

   

2. Start a conversion

   

3. Power up the DFB

   

4. Pass the ADC sample to the DFB

   

5. Output the previous DFB result via I2C

   

6. Go back to sleep

   

All at 9ksps ?

   

I have severe power limitations!

   

Thanks,

   

Richard

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7 Replies
ETRO_SSN583
Esteemed Contributor

You will have to do an analysis of startup times, like clocks (Fast IMO Dtartup Mode),

   

flushing A/D filters, etc.. This can be done via datasheets, module datasheet, and ap

   

notes.

   

 

   

Relative ap notes -

   

 

   

AN66803

   

AN77900

   

 

   

Regards, Dana.

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Anonymous
Not applicable

Thanks Dana!

   

I can't find AN66803?

   

 

   

Richard

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Bob_Marlowe
Expert II

Since it will take a couple of ms to wakeup from sleep mode and having all clocks running again at nominal speed, I'm afraid that you will have difficulties to match your required timings.

   

 

   

Bob

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Anonymous
Not applicable

You can also try the alternate active mode if waking up from sleep seems to take up a lot of time for your application.

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ETRO_SSN583
Esteemed Contributor

AN66803 attached.

   

 

   

Regards, Dana.

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Anonymous
Not applicable

is there any low power mode in PSoC to save maximum possible power?

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Anonymous
Not applicable

 @SachinBVP

   

Are you asking for the lowest power mode in PSOC 3? If so, it is Hibernate mode. Refer to AN77900

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