新型双声道音频- DAC小面积插值滤波器的设计实现

刘素娟; 张特; 陈建新

doi:10.3724/SP.J.1146.2010.00587

新型双声道音频- DAC小面积插值滤波器的设计实现

doi: 10.3724/SP.J.1146.2010.00587

刘素娟^{* 张特陈建新,},
张特,
陈建新

基金项目:

教育部博士点新教师基金(20091103120007)和北京市教委项目资助课题

计量
- 文章访问数: 3662
- HTML全文浏览量: 121
- PDF下载量: 848
- 被引次数: 0
出版历程
- 收稿日期: 2010-06-08
- 修回日期: 2010-10-15
- 刊出日期: 2011-03-19

Design and Implementation of a Hardware-efficient Novel Digital Interpolation Filter Applied to Stereo Audio Sigma-Delta DAC

Liu Su-Juan^{* 张特陈建新
,},
Zhang Te,
Chen Jian-Xin

摘要

摘要: 该文提出了一种新型双声道音频-数模转换器(DAC)小面积插值滤波器设计方法。该方法采用左右两个声道复用一个插值滤波器的新型结构，并利用存储器实现第1级半带滤波器，从而降低芯片的实现面积。提出重新排序方法，保证复用后两个声道的同步。设计在TSMC 0.18m 1.8 V/3.3 V 1P5M CMOS工艺上实现，测试信噪比为106 dB，数字部分芯片的面积仅为0.198 mm2，功耗为0.65 mW。这种设计方法降低了- DAC系统中数字部分的面积和功耗，给模拟部分留有较大的设计裕量，这对模数混合系统的设计具有重要的意义。
- -数模转换器(DAC) /
- 插值滤波器 /
- 双声道复用 /
- 重新排序
Abstract: A novel design method for hardware-efficient digital interpolation filter applied to stereo audio Sigma- Delta Digital-to-Analog Converter (- DAC) is proposed in this paper. The method proclaims a new structure of multiplexing the interpolation filter by the left and right channel. The reorder technique is presented to keep the two channels being completely synchronization after multiplexing. The design is fabricated on TSMC 0.18m 1.8 V/3.3 V 1P5M CMOS process. The measurement results show that the DAC achieves 106 dB SNR over the 20 kHz audio band. The digital part of chip occupies only 0.198 mm2 and dissipates only 0.65 mW power. This design method benefits low chip area and power consumption and leaves much more design margin to the analog part of the - DAC, which provides important significance in mixed-signal system design.
- Sigma-Delta Digital-to-Analog Converter (- DAC) /
- Interpolation filter /
- Dual-channel multiplexing /
- Reorder technique

HTML全文

参考文献(1)

陈润，刘力源，李冬梅. 用于高精度-数模转换的多级插值滤波器的设计技术[J].半导体学报.2007, 28(11):1735-1740[5]Ben Ameur N.[J].Soyah M, Masmoudi N, and Loulou M. FPGA implementation of polyphase decomposed FIR filters for interpolation used in - audio DAC[C]. 3rd International Conference on Signals, Circuits and Systems, Medenine, Tunisia, Nov. 6-.2009,:-[7]Mukhtar A, Jamal H, and Farooq U. An area efficient interpolation filter for digital audio applications [J].IEEE Transactions on Consumer Electronics.2009, 55(2):768-772[8]Luo Bin-ming.[J].Zhao Yuan-fu, and Wang Zong-min. An area-efficient interpolator applied in audio - DAC[C]. IEEE Conference on Signal-Image Technologies and Internet- Based System, Bali, Indonesia, Nov.30-Dec..2008,:-[9]Schwingshackl D and Kubin G. Polyphase representation of multirate nonlinear filters and its applications [J].IEEE Transactions on Signal Processing.2007, 55(5):2145-2157[10]Laddomada M. Design of multistage decimation filters using cyclotomic polynomials: optimization and design 7s [J].IEEE Transactions on Circuits and Systems I: Regular Papers.2008, 55(7):1977-1987[11]Nguyen K, Bandyopadhyay A, and Adams B, et al.. A 108 dB SNR, 11 mW oversampling audio DAC with a three-level DEM technique [J].. IEEE Journal of Solid-State Circuits.2008, 43(12):2592-2600[12]Lee Kye-hyung, Meng Qing-dong, and SugimotoT, et al.. A 08 V, 2.6 mW, 88 dB dual-channel audio Delta-Sigma D/A converter with headphone driver [J].. IEEE Journal of Solid-State Circuits.2009, 44(3):916-927

施引文献

资源附件(0)

访问统计