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Diffstat (limited to 'testsuite/vests/vhdl-ams/ashenden/compliant/frequency-modeling/lowpass-2.vhd')
-rw-r--r-- | testsuite/vests/vhdl-ams/ashenden/compliant/frequency-modeling/lowpass-2.vhd | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/testsuite/vests/vhdl-ams/ashenden/compliant/frequency-modeling/lowpass-2.vhd b/testsuite/vests/vhdl-ams/ashenden/compliant/frequency-modeling/lowpass-2.vhd new file mode 100644 index 000000000..51624706c --- /dev/null +++ b/testsuite/vests/vhdl-ams/ashenden/compliant/frequency-modeling/lowpass-2.vhd @@ -0,0 +1,39 @@ + +-- 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_proposed; use ieee_proposed.electrical_systems.all; + +entity lowpass is + port ( terminal input : electrical; + terminal output : electrical ); +end entity lowpass; + +---------------------------------------------------------------- + +architecture dot of lowpass is + + quantity vin across input to electrical_ref; + quantity vout across iout through output to electrical_ref; + constant tp : real := 15.9e-3; -- filter time constant + +begin + + vin == vout + tp * vout'dot; + +end architecture dot; |