Appendix E: Functional Operation Summary

 

32 K x 8

 

Bank 1

 

Waveform Data

 

 

 

 

32 K x 8

￿12 bits￿

 

 

 

 

 

 

8 : 1

 

 

Multiplexer

Marker 1

￿1 bit￿

32 K x 8

Bank 8 Marker 2

32 K x 8

￿1 bit￿

 

 

 

 

 

 

 

 

1/8

 

 

 

Clock

 

 

 

 

 

 

 

 

 

 

 

Figure E￿10: Waveform Memory Configuration

The waveform data length can be any multiple of 8 points, from a minimum of 64 points to a maximum of 256K points. The total number of waveform data points that can be used in a single sequence file is 256K.

Data Length. Generally, outputting high precision (high S/N ratio) waveforms requires an adequate number of data points.

For example, when outputting triangular waveforms, about 8000 points are needed to minimize the jaggedness of the waveform. That is why the AWG2021 uses a DAC with a resolution of about 4000 (12 bits) for the vertical amplitude.

Figure E-11 shows the relationship between the triangular wave resolution and the number of data points.

AWG2021 User Manual

E￿11