Title :
A continuous-time programmable digital FIR filter
Author :
Li, Y.W. ; Shepard, K.L. ; Tsividis, Y.P.
Author_Institution :
Columbia Integrated Syst. Lab., Columbia Univ., New York, NY, USA
Abstract :
We describe the design and implementation of a continuous-time finite-impulse-response processor chain, which includes a six-bit asynchronous ADC, an asynchronous digital core and an eight-bit asynchronous DAC designed in TSMC 0.25 μm technology. Continuous-time operation avoids aliasing and the quantization noise associated with the aliasing of harmonic components. We present measurement results demonstrating an audio low-pass-filter with a bandwidth of 6.0 kHz implemented with this processor.
Keywords :
FIR filters; analogue-digital conversion; continuous time filters; digital-analogue conversion; low-pass filters; programmable filters; 0.25 micron; 6 bit; 6.0 kHz; 8 bit; asynchronous ADC; asynchronous digital core; audio low-pass-filter; continuous-time filter; continuous-time operation; digital FIR filter; finite-impulse-response processor; programmable filter; Analog-digital conversion; Digital signal processing; Dynamic range; Finite impulse response filter; Frequency conversion; Noise reduction; Power harmonic filters; Quantization; Signal processing; Signal sampling;
Conference_Titel :
Custom Integrated Circuits Conference, 2005. Proceedings of the IEEE 2005
Print_ISBN :
0-7803-9023-7
DOI :
10.1109/CICC.2005.1568763
