A 0.8 V, 2.6 mW, 88 dB Dual-Channel Audio Delta-Sigma D/A Converter With Headphone Driver
A 0.8 V third-order multibit DeltaSigma DAC with headphone driver is described. It is the first sub-1 V audio DeltaSigma DAC with integrated on-chip headphone driver. The dual-channel operation in digital section was efficiently realized with a time-interleaved single-channel hardware and extra regi...
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| Published in | IEEE journal of solid-state circuits Vol. 44; no. 3; pp. 916 - 927 |
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| Main Authors | , , , , , , , |
| Format | Journal Article |
| Language | English |
| Published |
New York, NY
IEEE
01.03.2009
Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subjects | |
| Online Access | Get full text |
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| Abstract | A 0.8 V third-order multibit DeltaSigma DAC with headphone driver is described. It is the first sub-1 V audio DeltaSigma DAC with integrated on-chip headphone driver. The dual-channel operation in digital section was efficiently realized with a time-interleaved single-channel hardware and extra registers. Using novel DAC architecture suitable for low-voltage operation, the analog section requires only one opamp per channel for the D/A conversion, low-pass filtering, and driving the headphone. Two prototype ICs (separate digital and analog chips), implemented in a 0.35 mum CMOS process, achieved an 88 dB dynamic range, while consuming 2.6 mW from a 0.8 V supply. |
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| AbstractList | A 0.8 V third-order multibit DeltaSigma DAC with headphone driver is described. It is the first sub-1 V audio DeltaSigma DAC with integrated on-chip headphone driver. The dual-channel operation in digital section was efficiently realized with a time-interleaved single-channel hardware and extra registers. Using novel DAC architecture suitable for low-voltage operation, the analog section requires only one opamp per channel for the D/A conversion, low-pass filtering, and driving the headphone. Two prototype ICs (separate digital and analog chips), implemented in a 0.35 mum CMOS process, achieved an 88 dB dynamic range, while consuming 2.6 mW from a 0.8 V supply. A 0.8 V third-order multibit DeltaSigma DAC with headphone driver is described. It is the first sub-1 V audio DeltaSigma DAC with integrated on- chip headphone driver. The dual-channel operation in digital section was efficiently realized [abstract truncated by publisher]. |
| Author | Kyehyung Lee Un-Ku Moon Temes, G.C. Qingdong Meng Takasuka, K. Hamashita, K. Sugimoto, T. Takeuchi, S. |
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| Keywords | Operational amplifier Prototype Third order Two channel system Driver DA converter switched R-DAC Switching Low voltage Sigma-delta modulation Digital filter Complementary MOS technology Delta-sigma DAC digital filters headphone driver |
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| Snippet | A 0.8 V third-order multibit DeltaSigma DAC with headphone driver is described. It is the first sub-1 V audio DeltaSigma DAC with integrated on-chip headphone... A 0.8 V third-order multibit DeltaSigma DAC with headphone driver is described. It is the first sub-1 V audio DeltaSigma DAC with integrated on- chip headphone... |
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| SubjectTerms | 1f noise Amplifiers Applied sciences Architecture Channels Circuit properties Computer science Delta-sigma DAC Design. Technologies. Operation analysis. Testing Digital Digital filters Drivers Electric, optical and optoelectronic circuits Electronic circuits Electronics Exact sciences and technology Filtering Filtration Frequency filters headphone driver Headphones Integrated circuits Low pass filters low voltage Noise levels Noise reduction Power supplies Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Signal convertors Signal to noise ratio switched R-DAC Switches Voltage |
| Title | A 0.8 V, 2.6 mW, 88 dB Dual-Channel Audio Delta-Sigma D/A Converter With Headphone Driver |
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