Title
Peak current estimation for digital filters
Abstract
Estimates of the peak power dissipation and the peak current are required in the design of reliable VLSI circuits. The peak current current drawn by a digital filter is dependent on the filter coefficients and the inputs to the multipliers in the filter. This input dependence makes the estimation of peak current for a digital filter a hard problem. We present a technique to estimate the maximum current drawn by a digital filter. The approach consists of: (1) building peak current macro-models for multipliers in terms of the input data transitions and the coefficient, and (2) using these models in a graph based formulation for finding the peak current of the digital filter. The peak current macro-models for multipliers are validated by comparisons with SPICE simulations. We also present the application of the technique for estimating the peak current of digital filters in a 51.84 Mb/s 16-CAP receiver.
Year
DOI
Venue
2000
10.1109/ICASSP.2000.860093
Acoustics, Speech, and Signal Processing, 2000. ICASSP '00. Proceedings. 2000 IEEE International Conference
Keywords
Field
DocType
CMOS digital integrated circuits,VLSI,digital filters,electric current,graph theory,receivers,semiconductor device models,16-CAP receiver,51.84 Mbit/s,CMOS gates,Peak current estimation,SPICE simulations,digital filters,filter coefficients,graph based formulation,input data transitions,input dependence,multipliers,peak current macro-models,peak power dissipation,reliable VLSI circuits
Mathematical optimization,Digital filter,Half-band filter,Computer science,Control theory,Dissipation,Spice,Electronic engineering,Adaptive filter,Very-large-scale integration,Filter design,Electric current
Conference
Volume
ISSN
ISBN
6
1520-6149
0-7803-6293-4
Citations 
PageRank 
References 
0
0.34
2
Authors
2
Name
Order
Citations
PageRank
S. Bobba111016.06
Hajj, I.N.2466.13