2 distortion test, Crd5378 – Cirrus Logic CRD5378 User Manual
Page 11

CRD5378
DS639RD2
11
• Once the Setup panel is set, select Configure on the Digital Filter sub-panel.
• After digital filter configuration is complete, click Capture on the Data Capture sub-panel.
• 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 on the Data Capture sub-panel.
• Once the data record is collected, the Analysis panel is automatically displayed.
• Select Signal FFT from the Test Select control to display the calculated noise statistics.
• Verify the distortion performance (S/D) is 109 dB or better.