A frequency response, harmonic distortion, and intermodulation distortion test for BIST of a sigma-delta ADC

1996 ◽  
Vol 43 (8) ◽  
pp. 608-613 ◽  
Author(s):  
M.F. Toner ◽  
G.W. Roberts
Keyword(s):  
Frequency Response ◽  
Harmonic Distortion ◽  
Intermodulation Distortion ◽  
Sigma Delta ◽  
Sigma Delta Adc

scholarly journals Experimental Evaluation of Distortion in Amplitude Modulation Techniques for Parametric Loudspeakers

2020 ◽  
Vol 10 (6) ◽  
pp. 2070
Author(s):  
Ricardo San Martín ◽  
Pablo Tello ◽  
Ana Valencia ◽  
Asier Marzo
Keyword(s):  
Frequency Response ◽  
Amplitude Modulation ◽  
Experimental Evaluation ◽  
Harmonic Distortion ◽  
Intermodulation Distortion ◽  
Simple Method ◽  
Modulation Techniques ◽  
Audible Sound ◽  
Non Linear

Parametric loudspeakers can generate a highly directional beam of sound, having applications in targeted audio delivery. Audible sound modulated into an ultrasonic carrier will get self-demodulated along the highly directive beam due to the non-linearity of air. This non-linear demodularization should be compensated to reduce audio distortion, different amplitude modulation techniques have been developed during the last years. However, some studies are only theoretical whereas others do not analyze the audio distortion in depth. Here, we present a detailed experimental evaluation of the frequency response, harmonic distortion and intermodulation distortion for various amplitude modulation techniques applied with different indices of modulation. We used a simple method to measure the audible signal that prevents the saturation of the microphones when the high levels of the ultrasonic carrier are present. This work could be useful for selecting predistortion techniques and indices of modulation for regular parametric arrays.

Sigma-Delta ADC on SOI Technology for Working at High Temperatures

2020 ◽  
Vol 63 (11) ◽  
pp. 586-595
Author(s):  
Alexander Korotkov ◽  
Dmitry Morozov ◽  
Mikhail Pilipko ◽  
Mikhail Yenuchenko
Keyword(s):  
High Temperatures ◽  
Sigma Delta ◽  
Sigma Delta Adc ◽  
Soi Technology

A 2.5-V 14-bit, 180-mW Cascaded $\Sigma\Delta$ ADC for ADSL2+ Application

2007 ◽  
Vol 42 (11) ◽  
pp. 2357-2368 ◽  
Author(s):  
Teng-Hung Chang ◽  
Lan-Rong Dung ◽  
Jwin-Yen Guo ◽  
Kai-Jiun Yang
Keyword(s):  
Sigma Delta ◽  
Sigma Delta Adc

Mixed Mode Sigma-Delta ADC Design for High Quality Audio

2000 ◽  
pp. 229-246
Author(s):  
Giovanni Cesura ◽  
Alessandro Venca ◽  
Vittorio Colonna ◽  
Gabriele Gandolfi ◽  
Sandro Dalle Feste ◽  
...  
Keyword(s):  
Mixed Mode ◽  
High Quality ◽  
Sigma Delta ◽  
Sigma Delta Adc
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