Title :
A 65nm 1.2V 16-bit audio codec sigma-delta DAC with headphone driver
Author :
Lam, Brian ; Choi, Thomas
Author_Institution :
IC Design Group, Appl. Sci. & Technol. Res. Inst. Co. Ltd., Shatin, China
Abstract :
This paper reports the measured results of a 16-bit audio codec sigma-delta (Σ-Δ) DAC including a class AB headphone driver, implemented in a 65nm process. The DAC operates with a single 1.2V supply voltage and a 256 times over-sampling ratio, achieving a Total Harmonic Distortion (THD) of -61dB and a Signal-to-Noise Ratio (SNR) of 93dB.
Keywords :
audio coding; codecs; driver circuits; headphones; AB headphone driver; audio codec sigma-delta DAC; total harmonic distortion; 1.2V; 65nm; Class AB; DAC; DEM; Sigma-delta;
Conference_Titel :
Electron Devices and Solid-State Circuits (EDSSC), 2011 International Conference of
Conference_Location :
Tianjin
Print_ISBN :
978-1-4577-1998-1
Electronic_ISBN :
Pending
DOI :
10.1109/EDSSC.2011.6117683
