scholarly journals A CMOS 750MHz fifth-order continuous-time linear phase lowpass filter with gain boost

2008 ◽  
Author(s):  
Xi Zhu ◽  
Yichuang Sun ◽  
James Moritz
Keyword(s):  
Continuous Time ◽  
Linear Phase ◽  
Lowpass Filter ◽  
Fifth Order ◽  
Time Linear ◽  
Order Continuous

FEASIBILITY PROOF FOR ARBITRARILY TIGHT PHASE EQUALIZATION

1991 ◽  
Vol 01 (01) ◽  
pp. 1-18 ◽  
Author(s):  
ANTON KUMMERT ◽  
ALFRED FETTWEIS
Keyword(s):  
Continuous Time ◽  
Mathematical Proof ◽  
Point Of View ◽  
Frequency Interval ◽  
Theoretical Point ◽  
Linear Phase ◽  
Finite Frequency ◽  
First Order ◽  
Time Linear ◽  
Equalization Problem

In this paper, the phase equalization problem for continuous-time us well as for discrete-time linear systems is considered from a theoretical point of view. The purpose is thus not to present an efficient algorithm for solving this problem in practice, but to offer a mathematical proof that an arbitrarily tight approximation of the linear phase behavior in any given finite frequency interval is always feasible. In a first step it is shown that the problem can be reduced to the equalization of the phase of a real first-order all-pass section. This simplified problem is investigated in Sec. 4.2 of the paper.

scholarly journals Reachability of standard and fractional continuous-time systems with constant inputs

2016 ◽  
Vol 26 (2) ◽  
pp. 147-159 ◽  
Author(s):  
Krzysztof Rogowski
Keyword(s):  
Continuous Time ◽  
Initial Conditions ◽  
Sufficient Conditions ◽  
Final State ◽  
Continuous Time Systems ◽  
Necessary And Sufficient ◽  
Time Systems ◽  
The Given ◽  
Time Linear ◽  
Order Continuous

Abstract The reachability of standard and fractional-order continuous-time systems with constant inputs is addressed. Positive and non-positive continuous-time linear systems are considered. Necessary and sufficient conditions for the existence of such constant inputs that steers the system from zero initial conditions to the given final state in desired time are derived and proved. As an example of such systems the electrical circuits with DC voltage sources are presented.

A Fifth-Order Continuous-Time Delta-Sigma Modulator With Single-Opamp Resonator

2010 ◽  
Vol 45 (4) ◽  
pp. 697-706 ◽  
Author(s):  
Kazuo Matsukawa ◽  
Yosuke Mitani ◽  
Masao Takayama ◽  
Koji Obata ◽  
Shiro Dosho ◽  
...  
Keyword(s):  
Continuous Time ◽  
Delta Sigma Modulator ◽  
Delta Sigma ◽  
Fifth Order ◽  
Order Continuous
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