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Diffstat (limited to 'testsuite/vests/vhdl-ams/ashenden/compliant/AMS_CS4_RF_IC/v_BPF.vhd')
-rw-r--r-- | testsuite/vests/vhdl-ams/ashenden/compliant/AMS_CS4_RF_IC/v_BPF.vhd | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/testsuite/vests/vhdl-ams/ashenden/compliant/AMS_CS4_RF_IC/v_BPF.vhd b/testsuite/vests/vhdl-ams/ashenden/compliant/AMS_CS4_RF_IC/v_BPF.vhd new file mode 100644 index 000000000..6558c1c85 --- /dev/null +++ b/testsuite/vests/vhdl-ams/ashenden/compliant/AMS_CS4_RF_IC/v_BPF.vhd @@ -0,0 +1,48 @@ + +-- Copyright (C) 2002 Morgan Kaufmann Publishers, Inc + +-- This file is part of VESTs (Vhdl tESTs). + +-- VESTs is free software; you can redistribute it and/or modify it +-- under the terms of the GNU General Public License as published by the +-- Free Software Foundation; either version 2 of the License, or (at +-- your option) any later version. + +-- VESTs is distributed in the hope that it will be useful, but WITHOUT +-- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +-- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +-- for more details. + +-- You should have received a copy of the GNU General Public License +-- along with VESTs; if not, write to the Free Software Foundation, +-- Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +library ieee; use ieee.math_real.all; +library ieee_proposed; use ieee_proposed.electrical_systems.all; + +entity v_BPF is + + generic ( k : real := 1.0; -- filter gain + fo : real := 100.0e3; -- center frequency [Hz] + q : real := 0.707 ); -- quality factor + + port ( terminal input : electrical; + terminal output : electrical ); + +end entity v_BPF; + +---------------------------------------------------------------- + +architecture behavioral of v_BPF is + + quantity vin across input; + quantity vout across iout through output; + constant wo : real := math_2_pi * fo; -- frequency in radians + constant num : real_vector := (0.0, wo); -- numerator array + constant den : real_vector := (wo * wo, wo / q, 1.0); -- denominator array + +begin + + vout == k * vin'ltf(num, den); -- Laplace transform of output + +end architecture behavioral; |