← 返回 JSSC 论文列表JSSC 2009第3期Data Converters0.35μmDelta-Sigma ADCDAC
A 08 V 26 mW 88 dB Dual-Channel Audio Delta-Sigma DA Converter With Headphone D
0.8V低功耗双通道音频Delta-Sigma DAC，集成耳机驱动，动态范围88dB
0.35μm CMOS, 0.8V, 88dB动态范围, 2.6mW功耗
低电压Delta-Sigma DAC耳机驱动双通道音频转换
▸首款低于1V集成耳机驱动的音频DAC
▸采用时间交织单通道硬件实现双通道操作
▸新型DAC架构适合低电压工作
Abstract
A 0.8 V third-order multibit /1/6 DAC with head-
phone driver is described. It is the first sub-1 V audio /1/6 DAC
with integrated on-chip headphone driver. The dual-channel
operation in digital section was efficiently realized with a time-in-
terleaved 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