Buffer size limitation for AD3 function generator

[Charlotte123]

Hi, 

I'm using the AD3 as a function generator with python (Waveforms SDK). My sampling rate is very high (20MHz) due to creation of a high frequency sinusoidal signal. I can see that the buffer is only about 16k samples (or maybe 32k under another configuration), which equates to ~0.08ms of data. I'm trying to produce some complex waveforms, i.e. the signal is not simply a continuous sine wave, so simply looping over this buffer won't work. Does anyone have any other suggestions? Or do I need to get something with larger memory? Does Digilent have anything with a larger buffer for waveform generation. 

Many thanks,

Charlotte

[attila]

Hi @Charlotte123

On AD3 the Wavegen carrier buffer size can be up 32ki samples.
The device provides amplitude, frequency, phase modulation and signal summing.
The Wavegen /Play can be used for data streaming at up to about 5MSps.

Later we may implement deep buffer for Wavegen on devices with DDR-RAM like ADP3X50.

Such feature can also be implemented with Zmods on development boards like EclypseZ7. 

[Charlotte123]

What is the buffer size for the ADP3X50? Is this the one with the largest buffer size?

Thanks so much for the info.

[attila]

Hi @Charlotte123

ADP3X50 128Mi, EclypseZ7 256Mi
See WaveForms application Device Manager and Help tab

[Charlotte123]

Found the answer to my own question. Thanks

Edited January 30 by Charlotte123
Found the answer