TY - GEN
T1 - A continuous-time delta-sigma modulator with novel data-weighted averaging algorithm for audio application
AU - Lin, Jia Ni
AU - Chu, Hsing Chien
AU - Chen, Zong Yi
AU - Hung, Chung-Chih
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/9/30
Y1 - 2015/9/30
N2 - A 4-bit continuous-time delta-sigma modulator (CT-DSM) with the proposed data-weighted averaging (DWA) algorithm for audio application is presented. The proposed method randomly adds one to pointer address in the DWA to reduce distortion tones and improve the performance of spurious-free dynamic range (SFDR) and signal to noise and distortion ratio (SNDR), as compared with the conventional DWA. The post-layout simulation results show that the modulator designed in TSMC 0.18 μm CMOS process achieves the SNDR of 81.5 dB and the dynamic range (DR) of 85dB in 24 kHz signal bandwidth. The chip area is 1.168 × 0.632 mm2 and the power consumption is 339 μW from a 1.8 V power supply.
AB - A 4-bit continuous-time delta-sigma modulator (CT-DSM) with the proposed data-weighted averaging (DWA) algorithm for audio application is presented. The proposed method randomly adds one to pointer address in the DWA to reduce distortion tones and improve the performance of spurious-free dynamic range (SFDR) and signal to noise and distortion ratio (SNDR), as compared with the conventional DWA. The post-layout simulation results show that the modulator designed in TSMC 0.18 μm CMOS process achieves the SNDR of 81.5 dB and the dynamic range (DR) of 85dB in 24 kHz signal bandwidth. The chip area is 1.168 × 0.632 mm2 and the power consumption is 339 μW from a 1.8 V power supply.
KW - Delta-sigma Modulator (DSM)
KW - continuous-time (CT)
KW - data-weighted averaging (DWA)
UR - http://www.scopus.com/inward/record.url?scp=84962173315&partnerID=8YFLogxK
U2 - 10.1109/EDSSC.2015.7285105
DO - 10.1109/EDSSC.2015.7285105
M3 - Conference contribution
AN - SCOPUS:84962173315
T3 - Proceedings of the 2015 IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC 2015
SP - 281
EP - 284
BT - Proceedings of the 2015 IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 11th IEEE International Conference on Electron Devices and Solid-State Circuits, EDSSC 2015
Y2 - 1 June 2015 through 4 June 2015
ER -