LALM: a logic-aware layout methodology to enhance the noise immunity of domino circuits

2003 ◽  
Author(s):  
Yonghee Im ◽  
K. Roy
Keyword(s):  
Noise Immunity ◽  
Domino Circuits

A Novel Method to Control Leakage and Noise in Domino Circuit for Wide Fan-in OR Logic

2021 ◽  
pp. 2250055
Author(s):  
Ankur Kumar ◽  
R. K. Nagaria
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
High Speed ◽  
Noise Immunity ◽  
Cmos Technology ◽  
Threshold Current ◽  
Delay Condition ◽  
Noise Margin ◽  
Novel Method ◽  
Domino Circuits

This paper proposes a novel method to control leakage and noise in domino circuits for wide fan-in OR logic with low power consumption, low process variation, and higher noise margin under the similar delay condition. In the proposed method, output and dynamic nodes are isolated from the PDN (Pull-Down Network) to improve the noise immunity and reduce switching activity. Further, with the aid of a transistor in the stack, the sub-threshold current is reduced. Thus, the proposed domino is applicable for high-speed and low-power applications in deep sub-micro-range. Simulation results show that the proposed domino improves the noise immunity and figure of merit (FOM) by factors of 1.95 and 2.34, respectively, with respect to the conventional domino with a footer. Along with this improvement, 26% reduction is also observed in power consumption. The entire simulations for all the domino circuits are done at 45-nm CMOS technology by using SPECTRE simulator under the Cadence Virtuoso environment.

scholarly journals Noise measurement in high-speed domino pseudo-CMOS keeper

2018 ◽  
Vol 52 (1-2) ◽  
pp. 20-27
Author(s):  
R Jaikumar ◽  
P Poongodi
Keyword(s):  
Low Power ◽  
High Speed ◽  
Noise Immunity ◽  
Delay Reduction ◽  
Power Dynamic ◽  
Unity Noise Gain ◽  
Power Delay Product ◽  
The Cost ◽  
Domino Circuits ◽  
Or Gate

Noise immunity is the foremost issue in high-speed domino circuits. In general, better noise immunity is achieved at the cost of speed and power degradation. In this paper, pseudo-dynamic keeper design is proposed to reduce the delay and power with improved noise immunity for domino circuits. The proposed technique is able to achieve reduced delay, power consumption, and better noise immunity by using always ON keeper. The simulation results show that the proposed technique exhibits 41%, 39%, and 19% delay reduction when compared with the low power dynamic circuit for two-input OR gate, two-input EX-OR gate, and 4:1 multiplexer. The proposed logic also performs better as compared to a low power dynamic circuit with 24%, 21%, and 14% reduction in power-delay product for two-input OR gate, two-input EX-OR gate, and four input MUX, respectively. The unity noise gain is also improved as compared to all other existing methods.

Power Optimization in Domino Circuits Using Current Mirror Based Leakage Compensating Keeper

2014 ◽  
Vol 573 ◽  
pp. 169-175
Author(s):  
P. Karthikeyan ◽  
R. Saravanan ◽  
N. Saravanan
Keyword(s):  
Noise Immunity ◽  
Power Reduction ◽  
Current Mirror ◽  
Speed Reduction ◽  
Low Leakage ◽  
Domino Circuit ◽  
Capacitance Current ◽  
Domino Circuits ◽  
Or Gate ◽  
Address Decoders

In this work low leakage and high noise immunity domino circuit with negligible speed degradation is proposed. Wide Fan-In Gates are widely used as address decoders in memories. Wide Fan-In Gates increase the capacitance of the dynamic node which reduces the speed in domino circuits. Current contention exists between keeper transistor and evaluation network adding to speed reduction. To overcome this problem logic implementation network in the proposed Leakage Compensating Keeper (LCK) is separated from the dynamic node by current comparison stage in which the current of the pull up network is used to charge the capacitor at the dynamic node. Since capacitance is reduced the loss in speed due to additional transistors is compensated. Because of reduced parasitic capacitance Current Mirror based LCK is enough to design faster circuits. LCK improves the noise immunity by grounding the pull up networks leakage current. Simulation results shows that the proposed circuit has 22% power reduction compared to Standard Footless Domino for a 64bit input OR gate.

THE INCREASING OF DATA TRANSFER NOISE IMMUNITY IN DEPARTMENTAL COMMUNICATION SYSTEMS OF SHORT-WAVE RANGE

2018 ◽  
pp. 7-19
Author(s):  
B. G. Shadrin ◽  
◽  
D. E. Zachateyskiy ◽  
V. A. Dvoryanchikov Dvoryanchikov ◽  
◽  
...  
Keyword(s):  
Communication Systems ◽  
Noise Immunity ◽  
Data Transfer ◽  
Short Wave ◽  
Wave Range

POTENTIAL NOISE-IMMUNITY OF COMMUNICATIONS WITH POWER RECEPTION OF THE SHIFT-KEYED NOISE SIGNALS

2014 ◽  
Vol 73 (9) ◽  
pp. 777-791
Author(s):  
Mikhail E. Ilchenko ◽  
T. N. Narytnik ◽  
R. M. Didkovski
Keyword(s):  
Noise Immunity

NOISE IMMUNITY OF A SYSTEM WITH PSEUDORANDOM SIGNALS AND REED-MULLER CODE

2013 ◽  
Vol 72 (13) ◽  
pp. 1209-1218
Author(s):  
R. R. Bikkenin ◽  
S. D. Khvorov
Keyword(s):  
Noise Immunity ◽  
Pseudorandom Signals

Studying noise immunity of radio information transmission systems with noise-like phase-shift keyed signals and synchronization delay errors

2019 ◽  
pp. 105-113
Author(s):  
G. N. Maltsev ◽  
A. V. Evteev
Keyword(s):  
Phase Shift ◽  
Information Transmission ◽  
Noise Immunity ◽  
Tracking System ◽  
Tracking Error ◽  
Information Symbol ◽  
Transmission Systems ◽  
Synchronization System ◽  
Correlation Receiver ◽  
Selection Of

Introduction: Radio information transmission systems with noise-like phase-shift keyed signals based on pseudo-random sequences have potential noise immunity provided by accurately tracking the delay of the received signal in the correlation receiver. When working with moving objects, the delay of the received signal varies continuously, and the reception quality for noise-like phase-shifted signals highly depends on the synchronization system operation and on the accuracy of estimating the received signal delay by the tracking system. To ensure the required signal reception quality, it is necessary to provide an informed choice of tracking system parameters, taking into account their effects, which are the random and systematic components of the delay tracking error, on the selected noise immunity indicator.Purpose: Analyzing how the errors in tracking the delay of a received phase-shift keyed signal based on a pseudorandom sequence by the synchronization system of a radio information transmission system can affect the probability of erroneous reception of an information symbol.Results: The calculation method was used to obtain families of dependencies of the probability of erroneous reception of an information symbol on the signal-noise ratio (SNR), and the values of the random and systematic components of the delay tracking error which are normalized to the capture band of the correlation receiver. It has been shown that at a fixed SNR, the values of the random and systematic components of the delay tracking error are critical for the erroneous reception probability. In all the cases discussed, all the dependencies are characterized by a slow change of the erroneous reception probability while the synchronization errors within the area of small SNR have fixed values. As the SNR value grows, the erroneous reception probability rapidly drops. To ensure the specified signal reception quality and the reliability of the selection of information symbols and messages in a radio information transmission system with noise-like phase-manipulated signals, its synchronization system requires a joint selection of the tracking system parameters, taking into account the limitations imposed by the operating conditions and technical implementation features.Practical relevance: The obtained results can be used in noise immunity analysis of radio information transmission systems with noise-like phase-shift keyed signals in a wide range of communication conditions, and in providing technical solutions for synchronization systems ensuring the required quality of signal reception.

On-board converter of signals of inductive sensors of speed IS-1165M1 with increased noise immunity

2017 ◽  
Vol 13 (3) ◽  
pp. 30-38
Author(s):  
Y. B. Gorbatkin ◽  
V. A. Chernyshev ◽  
S. S. Sevostyanov ◽  
A. V. Gladkov
Keyword(s):  
Noise Immunity ◽  
Dynamic Range ◽  
Rocket Engines ◽  
Flight Tests ◽  
Speed Sensor ◽  
Inductive Sensors ◽  
Turbo Pump

The article is devoted to the development of a secondary converter for measuring the speed of turbo-pump aggregates of rocket engines. The principle of the induction speed sensor is considered in the article. A method is proposed for generating output pulses from signals of induction speed sensors, which consists in the preliminary integration of the signals of the speed sensor. This method allows to increase the reliability and accuracy of the formation of signals of induction speed sensors, as well as to increase the noise immunity of the secondary converter and significantly increase the dynamic range of measuring the speed. The data of flight tests of the developed secondary converter are given.

Synthesis of symmetrical cables for infocommunication systems with improved noise immunity characteristics

2018 ◽  
pp. 99-108
Author(s):  
А. B. Semenov ◽  
T. S. Abbasova
Keyword(s):  
Noise Immunity ◽  
Mass Dimension ◽  
Dimensional Parameters ◽  
Improved Characteristics

A synthesis of construction of cables of category 6a for infocommunication systems with improved characteristics of noise immunity is carried out. The parameters of transient pickups and total transient pickups for the proposed cable design are calculated, and the cable diameter of the initial and proposed designs is estimated. The estimation of improvement of mass-dimension parameters of a cable of a proposed design is carried out. It is shown that due to chamber (group) unearthed screening, it is possible to significantly reduce the influence characteristics and the mass-dimensional parameters of the cable.

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