Modeling sigma-delta modulator non-idealities in SIMULINK(R)

Brigati, S.; Francesconi, F.; Malcovati, P.; Tonietto, Davide; Basçhirotto, A.; Maloberti, Franco

doi:10.1109/iscas.1999.780739

Cited by 116 publications

(62 citation statements)

References 2 publications

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“…The most dominant noise sources affecting the operation of a switch capacitor of SMD are the resistance of the switches in the on state and the amplifier [6]. The total noise power of the circuit is the sum of the theoretical loop quantization noise power, the switch noise power and the op-amp noise power.…”

Section: Noise On Integratormentioning

confidence: 99%

Behavioral Analysis of Second Order Sigma-Delta Modulator for Low frequency Applications

Samanta¹

2013

IOSR-JCE

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Section: Noise On Integratormentioning

confidence: 99%

Behavioral Analysis of Second Order Sigma-Delta Modulator for Low frequency Applications

Samanta¹

2013

IOSR-JCE

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“…Therefore, behavioral simulations were carried out using a set of Simulink models [9,10] in MATLAB Simulink environment in order to verify the performance for a WLAN system, to investigate the circuit non-idealities effect, to optimize the system parameters and to establish the specifications for the analog cells. The most important parameter to be optimized in a sigma-delta modulator are the gain coefficients in order to achieve the desired signal-to-noise ratio.…”

Section: B Ga In Adc Design In the Design Ofmentioning

confidence: 99%

GA-based optimization of a fourth-order sigma-delta modulator for WLAN

Jose

Mythili

Mathew

et al. 2008

2008 IEEE International Conference on Systems, Man and Cybernetics

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Abstract-Over-sampling sigma-delta analogue-to-digital converters (ADCs) are one of the key building blocks of state of the art wireless transceivers. In the sigma-delta modulator design the scaling coefficients determine the overall signal-to-noise ratio. Therefore, selecting the optimum value of the coefficient is very important. To this end, this paper addresses the design of a fourthorder multi-bit sigma-delta modulator for Wireless Local Area Networks (WLAN) receiver with feed-forward path and the optimum coefficients are selected using genetic algorithm (GA)-based search method. In particular, the proposed converter makes use of low-distortion swing suppression SDM architecture which is highly suitable for low oversampling ratios to attain high linearity over a wide bandwidth. The focus of this paper is the identification of the best coefficients suitable for the proposed topology as well as the optimization of a set of system parameters in order to achieve the desired signal-to-noise ratio. GA-based search engine is a stochastic search method which can find the optimum solution within the given constraints.

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“…Incorporating the non-ideal blocks and undertaking system level simulations quantify the degradation in the Signal-to-Noise Distortion (SNDR) as a result of the circuit non-idealities. The various nonideal blocks developed in Simulink/Matlab are used for analysis [8], [9]. As a result of the nonidealities, the net reduction in the SNDR is given in Table 2.…”

Section: A Channel Bandwidth and System Designmentioning

confidence: 99%