Continuous-time DSPs, analog/digital computers and other mixed-domain circuits

This paper reviews our recent research, involving circuits and systems which mix domains traditionally kept separate. Several examples are given, including continuous-time digital signal processors and mixed analog/digital computers. It is argued that by mixing domains one can have advantages which would not otherwise be possible.

[1]  G.E.R. Cowan,et al.  A VLSI analog computer/math co-processor for a digital computer , 2005, ISSCC. 2005 IEEE International Digest of Technical Papers. Solid-State Circuits Conference, 2005..

[2]  J. Foster,et al.  Speech coding using time code modulation , 1991, IEEE Proceedings of the SOUTHEASTCON '91.

[3]  E. M. Blumenkrantz The analog floating point technique , 1995, 1995 IEEE Symposium on Low Power Electronics. Digest of Technical Papers.

[4]  Kenneth L. Shepard,et al.  Continuous-time digital signal processors , 2005, 11th IEEE International Symposium on Asynchronous Circuits and Systems.

[5]  M. Banu,et al.  An elliptic continuous-time CMOS filter with on-chip automatic tuning , 1985, IEEE Journal of Solid-State Circuits.

[6]  V. Prodanov,et al.  A "divide and conquer" technique for implementing wide dynamic range continuous-time filters , 2004, IEEE Journal of Solid-State Circuits.

[7]  Nagendra Krishnapura,et al.  Noise and power reduction in filters through the use of adjustable biasing , 2001 .

[8]  Yannis Tsividis,et al.  Externally linear, time-invariant systems and their application to companding signal processors , 1997 .

[9]  Yannis P. Tsividis Mixing domains in signal processing , 2004, 2004 IEEE International Symposium on Circuits and Systems (IEEE Cat. No.04CH37512).

[10]  Granino A. Korn,et al.  Electronic analog and hybrid computers , 1952 .

[11]  Yannis P. Tsividis Digital signal processing in continuous time: a possibility for avoiding aliasing and reducing quantization error , 2004, 2004 IEEE International Conference on Acoustics, Speech, and Signal Processing.

[12]  Y. Tsividis,et al.  Dynamically power-optimized channel-select filter for zero-IF GSM , 2005, ISSCC. 2005 IEEE International Digest of Technical Papers. Solid-State Circuits Conference, 2005..

[13]  Yannis Tsividis,et al.  Continuous-time digital signal processing , 2003 .

[14]  Hiroshi Inose,et al.  Asynchronous delta-modulation system , 1966 .

[15]  Yorgos Palaskas,et al.  Internally varying analog circuits minimize power dissipation , 2003 .