FilterBiquadBandpass

A second-order bandpass filter.

Parameters

corner_frequency

gain

quality_factor

Options
filter_topology \( \in \{ \) TYPE_I \( , \) TYPE_II \( , \) UNDEFINED \( \} \)

input_phase \( \in \{ \) PHASE1 \( , \) PHASE2 \( \} \)

opamp_mode \( \in \{ \) DEFAULT \( , \) CHOPPER_STABILIZED \( \} \)

Inputs

input Half-Cycle

Outputs

output Continuous

Low-frequency Variant

FilterBiquadBandpassLF : a version of this module that uses additional hardware resources to extend its low-frequency range.

Transfer Function

$$ \frac{V_{out}(s)}{V_{in}(s)} = \frac{-2\pi f_c\frac{G}{Q}s}{s^2 + \frac{2\pi f_c}{Q}s + 4\pi^2 f_c^2} \\ $$

Analog Resource Usage

$$ \begin{array}{|c|c|} \hline \text{Opamps} & \text{2 of 8} \\ \hline \text{Capacitors} & \text{8 of 32} \\ \hline \end{array} \\~\\ \text{Low Frequency Variant:} \\ \begin{array}{|c|c|} \hline \text{Opamps} & \text{2 of 8} \\ \hline \text{Capacitors} & \text{16 of 32} \\ \hline \end{array} $$

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