A Novel Interpolation Scheme and Apparatus to Extend DAC Usable Spectrum over Nyquist Frequency
A novel interpolation scheme to extend usable spectrum
and upconvert in high performance D/A converters is addressed in this
paper. By adjusting the pulse width of cycle and the production circuit
of code, the expansion code is a null code or complementary code that
is interpolation process. What the times and codes of interpolation
decide DAC works in one of a normal mode or multi-mixer mode
so that convert the input digital data signal into normal signal or a
mixed analog signal having a mixer frequency that is higher than the
data frequency. Simulation results show that the novel scheme and
apparatus most extend the usable frequency spectrum into fifth to
sixth Nyquist zone beyond conventional DACs.
[1] A. V. den Bosch, M. A. F. Borremans, M. S. J. Steyaert, and W. Sansen,
A 10-bit 1-GSample/s Nyquist Current-Steering CMOS D/A Converter,
IEEE J. Solid-State Circuits vol. 36, no. 3, 2001, pp. 315-324.
[2] G. A. M. V. der Plas, J. Vandenbussche, W. Sansen, M. S. J. Steyaert, and
G. G. E. Gielen,A 14-bit Intrinsic Accuracy Q2 Random Walk CMOS
DAC, IEEE J. Solid-State Circuits vol. 34, no. 12, 1999, pp. 1708-1718.
[3] C.-H. Lin, F. M. der Goes, J. R. Westra, J. Mulder, Y. Lin, E. Arslan,
E. Ayranci, X. dong Liu, and K. Bult,A 12 bit 2.9GS/s DAC With IM3-
60dBc Beyond 1 GHz in 65nm CMOS, IEEE J. Solid-State Circuits vol.
44, no. 12, 2009, pp. 3285-3293.
[4] D. A. Mercer,LOW POWER APPROACHES TO HIGH SPEED CMOS
CURRENT STEERING DACS, IEEE Custom Intergrated Circuits Conference
2006, pp. 153-160.
[1] A. V. den Bosch, M. A. F. Borremans, M. S. J. Steyaert, and W. Sansen,
A 10-bit 1-GSample/s Nyquist Current-Steering CMOS D/A Converter,
IEEE J. Solid-State Circuits vol. 36, no. 3, 2001, pp. 315-324.
[2] G. A. M. V. der Plas, J. Vandenbussche, W. Sansen, M. S. J. Steyaert, and
G. G. E. Gielen,A 14-bit Intrinsic Accuracy Q2 Random Walk CMOS
DAC, IEEE J. Solid-State Circuits vol. 34, no. 12, 1999, pp. 1708-1718.
[3] C.-H. Lin, F. M. der Goes, J. R. Westra, J. Mulder, Y. Lin, E. Arslan,
E. Ayranci, X. dong Liu, and K. Bult,A 12 bit 2.9GS/s DAC With IM3-
60dBc Beyond 1 GHz in 65nm CMOS, IEEE J. Solid-State Circuits vol.
44, no. 12, 2009, pp. 3285-3293.
[4] D. A. Mercer,LOW POWER APPROACHES TO HIGH SPEED CMOS
CURRENT STEERING DACS, IEEE Custom Intergrated Circuits Conference
2006, pp. 153-160.
@article{"International Journal of Electrical, Electronic and Communication Sciences:50518", author = "Wang liguo and Wang zongmin and Kong ying", title = "A Novel Interpolation Scheme and Apparatus to Extend DAC Usable Spectrum over Nyquist Frequency", abstract = "A novel interpolation scheme to extend usable spectrum
and upconvert in high performance D/A converters is addressed in this
paper. By adjusting the pulse width of cycle and the production circuit
of code, the expansion code is a null code or complementary code that
is interpolation process. What the times and codes of interpolation
decide DAC works in one of a normal mode or multi-mixer mode
so that convert the input digital data signal into normal signal or a
mixed analog signal having a mixer frequency that is higher than the
data frequency. Simulation results show that the novel scheme and
apparatus most extend the usable frequency spectrum into fifth to
sixth Nyquist zone beyond conventional DACs.", keywords = "interpolation, upconversion, modulation, switching
function, duty cycle.", volume = "6", number = "3", pages = "266-5", }