Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

PSoC™ 6 Forum Discussions

peda_3574746
Level 1
Level 1

hello :

          I'm designing an oscilloscope by using psoc6.  I'm looking for  some  similar application notes.  could you want to share with me ?   I saw that the kit has only one ADC and DAC.If I use two channels of ADC, will the sampling rate be reduced to half? And how do I convert the data of  2-channel ADC just with a single DAC? Do I need an external DAC?

          Looking forward to receiving your answer.

         THANKS!

pastedImage_1.png

0 Likes
1 Solution
Vasanth
Moderator
Moderator
Moderator
250 sign-ins 500 solutions authored First question asked

Hi Peng,

The achieved scan rate of the ADC depends on the following factors,https://www.cypress.com/file/387826/download

▪ ADC clock rate

▪ Number of channels

▪ Averaging

▪ Resolution

▪ Achieved acquisition time

As number of channels is part of it, this will affect the maximum achievable sample rate. Please see the ADC Datasheet.

PSoC6 also has 8-bit and 7-bit resolution IDACs additional to the VDAC. These with a resistor load and opamp buffer can be also used if the resolution is sufficient.

Best Regards,
Vasanth

View solution in original post

1 Reply
Vasanth
Moderator
Moderator
Moderator
250 sign-ins 500 solutions authored First question asked

Hi Peng,

The achieved scan rate of the ADC depends on the following factors,https://www.cypress.com/file/387826/download

▪ ADC clock rate

▪ Number of channels

▪ Averaging

▪ Resolution

▪ Achieved acquisition time

As number of channels is part of it, this will affect the maximum achievable sample rate. Please see the ADC Datasheet.

PSoC6 also has 8-bit and 7-bit resolution IDACs additional to the VDAC. These with a resistor load and opamp buffer can be also used if the resolution is sufficient.

Best Regards,
Vasanth