DocumentCode :
1974153
Title :
A VLSI architecture for a universal high-speed multirate FIR digital filter with selectable power-of-two decimation/interpolation ratios
Author :
Samueli, Henry ; Lin, Thu-ji
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
fYear :
1991
fDate :
14-17 Apr 1991
Firstpage :
1813
Abstract :
A universal architecture for decimation/interpolation digital filtering applications is proposed for custom VLSI implementation to accommodate real-time signal processing at throughput rates in excess of 100 MHz. The main innovation of this architecture is that it allows a single chip to selectively perform decimation or interpolation filtering with selectable conversion ratios of 21,22,. . .2 N. The key feature of the proposed architecture is that a single decimate/interpolate-by-two half-band digital filter is used as the computational engine, and the output samples are simply recycled through the same filter after each decimation/interpolation stage for further filtering. A delicate timing allocation scheme for this half-band filter to be shared among each decimation/interpolation stage plays a critical role in allowing the filter to have selectable conversion ratios and still accommodate throughput rates in excess of 100 MHz
Keywords :
VLSI; digital filters; interpolation; 100 MHz; VLSI architecture; computational engine; custom VLSI; decimation/interpolation digital filtering; decimation/interpolation ratios; half-band digital filter; high speed digital filter; power of two ratios; real-time signal processing; selectable conversion ratios; throughput rates; timing allocation; universal architecture; Computer architecture; Digital filters; Digital signal processing chips; Engines; Filtering; Finite impulse response filter; Interpolation; Technological innovation; Throughput; Very large scale integration;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference on
Conference_Location :
Toronto, Ont.
ISSN :
1520-6149
Print_ISBN :
0-7803-0003-3
Type :
conf
DOI :
10.1109/ICASSP.1991.150697
Filename :
150697
Link To Document :
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