The low range speaker is operated in connection with an enclosure tuned to its parameters and a tuned passive high-pass filter of at least 2nd degree. These measures result in a low cut-off frequency and small enclosure for particular acoustically advantageous frequency response characteristics. The...
Q Factor in Second-Order Nyquist Diagrams Even basic Nyquist plots such as those shown above can give us important qualitative information about the Q factor of a second-order filter. If we know that we’re dealing with a passive low-pass filter, then we can assume that the low-frequency ...
A novel second-order canonical RC-active realization of high-pass notch filter A high-pass notch filter with variable gain greater than unity is realized using a differential amplifier and only two capacitors that can be equal. The tr... Boctor,S. - 《IEEE Transactions on Circuits & Systems...
(MO-CCCIIs) and 2 grounded capacitors.The biquad can realize high-pass,band-pass,low-pass,band-stop and all-pass filter characteristics by suitably choosing the current output branches.The characteristic parameters can also be set orthogonally through adjusting the bias currents of the MO-CCCIIs ...
The architecture allows achieving a quasi-second order noise shaping by using a passive SC low-pass filter in the first stage. Simulation results demonstrate that the circuit can operate with sampling frequencies of hundred of MHz while obtaining a figure of merit (FoM) well ahead of the state...
Current Mode FilterSPICEA new current mode 2nd order filteremploying single current differencingtransconductance amplifier(CDTA), using currentmode approach which provides high pass(HP), bandpass(BP), low pass(LP) responses simultaneously,has been presented. The current outputs oflowpass(LP) and ...
We expect to find ultra-efficient second-order nonlinear photonic circuits, such as the frequency doubler and parametric oscillator demonstrated in this work, in a number of emerging low-power and quantum applications in the near future. Together with the high-performance integrated devices and compon...
In order to constrain the synaptic parameters further, we additionally required that the relative unitary response current amplitudes between synapse groups and their pair pulse ratios approximately equal the experimentally measured ones. To account for the fact that group 5’s pair pulse ratio is ...
A second-order differential highpass filter constructed according to the present invention includes a difference amplifier and a feedback processing circuit. The difference amplifier includes an opera
The tunable OTA is used to realize a third order Gm-C low pass filter with tunable cut-off frequency. The tuning range of the filter's cut-off frequency varies from 48.42 MHz to 130.32 MHz. LTSPICE simulation results for both the OTA and the filter using the 90 nm CMOS technology ...