beautypg.com

2 distortion test, Cdb5378 – Cirrus Logic CDB5378 User Manual

Page 14

background image

CDB5378

14

DS639DB4

• Once the Setup panel is set, select Configure on the Digital Filter sub-panel.

• After digital filter configuration is complete, click Capture to collect a data record.

• Once the data record is collected, the Analysis panel is automatically displayed.

• Select Noise FFT from the Test Select control to display the calculated noise statistics.

• Verify the noise performance (S/N) is 124 dB or better.

1.4.2

Distortion Test

• Set the controls on the Setup panel to match the picture:

• Once the Setup panel is set, select Configure on the Digital Filter sub-panel.

• After digital filter configuration is complete, click Capture to collect a data record.

• Once the data record is collected, the Analysis panel is automatically displayed.

• Select Signal FFT from the Test Select control to display the calculated signal statistics.

• Verify the distortion performance (S/D) is 112 dB or better.