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The electromagnetic immunity of an operational amplifier in the non-inverting configuration is characterized using the direct power injection (DPI) standard. The amplifier is driven by the functional input signal and the radio-frequency (RF) disturbance signal that is injected into the output pin. The output reflection coefficient in the large-signal conditions is calculated from the time-domain simulations...
Temperature stability of a high-precision oscillator is characterized by measurements in a temperature chamber. Two time constants are measured for a given temperature of the chamber: (i) time required for the silicon to reach the steady-state temperature obtained by measuring the time-domain voltage response of the on-chip temperature sensor; (ii) time required for the oscillator circuit to reach...
A black-box method for modeling the time-domain response of integrated circuits (ICs) based on echo state networks is proposed. The number and value of the input and feedback delays required for modeling nonlinear systems with memory are detected automatically, and the training procedure is very fast and robust. The resulting models can be implemented in any hardware description language. The proposed...
An algorithm for sampling the time-domain behaviour of circuits for building nonlinear black-box models is presented. The two-dimensional modelling domain (frequency, forward power level), for which the time-domain behaviour of a circuit is modelled, is sampled adaptively to achieve two goals: (i) apply more focus on the nonlinear regions, (ii) avoid undersampling of the linear regions. The proposed...
The lumped models of several capacitors in SMD-0603 package are extracted from S-parameter measurements. The S-parameters of the SMD components are obtained: (i) by modelling the RF connector and transmission lines and de-embedding, and (ii) by directly calibrating the reference plane to the SMD component using on-board calibration standards. The extracted parasitics related to the SMD component package...
An interchangeable black-box model of an integrated circuit block for time-domain simulations of the direct power injection (DPI) immunity test is presented. An artificial neural network implemented as a Verilog A module is used to build a model of a bandgap reference circuit sub-block. Being a part of a larger schematic of interconnected circuit blocks, the model is able to correctly load the transistor-level...
This paper presents the characterization of various types of SubMiniature version A (SMA) connectors. The characterization is performed by measurements in frequency and time domain. The SMA connectors are mounted on microstrip (MS) and conductor-backed coplanar waveguide (CPW-CB) manufactured on high-frequency (HF) laminates. The designed characteristic impedance of the transmission lines is 50 Ω...
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