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- 1.0) Introduction
-
- This file describes the enhancements and changes included in
- the 5.0 release of PSpice.
-
- For information regarding installation, operation,
- and technical details about the package, you may purchase the
- Circuit Analysis User's Guide for $50.00.
-
-
- 2.0) Updates and Corrections to the User's Guide
-
- All manual modifications for this version have been marked by shading
- those items.
-
- Note: Release 5.0 of Probe, Parts, and StmEd (DOS and
- DOS/16M) supports display modes VGA800 and VGA1024 on
- Super VGA adapters that use one of the following chipsets:
-
- ATI Technologies 28800
- Chips & Technologies 82C451, 82C452, or 82C453
- Video7/Headland Technologies HT208 or HT209
- Trident TVGA8900
- Tseng Labs ET4000
- Western Digital WD90C00
-
- In addition, the VESA (Video Electronics Standards
- Association) standard BIOS interface for 800x600 and
- 1024x768 16-color modes is supported (DOS 640Kb version
- only). If your adapter manufacturer also supports this
- standard, a VESA BIOS extension will have been included
- in the software utilities provided with your video adapter.
- This will be either an installable device driver (called
- VESA.SYS or something similar) or a Terminate-and-Stay-
- Resident program (called VESA.COM, VESA.EXE, or something
- similar). To use the VESA interface, you must install the
- VESA BIOS extension prior to running Probe, Parts, or StmEd.
-
- DIGITAL SIMULATION
- The Multi-Bit Digital-to-Analog Converter switching time
- model parameter default values have been modified. The
- default value for TSWMN, TSWTY, and TSWMX is now 10ns
- instead of 0.
-
- Ten new one-shots have been added to the digital library: the
- 121, 122, and 123 TTL-7400 series parts, and the CD4098B and
- CD4538B. The TTL-7400 series parts are included in the pin
- list at the end of the Digital Simulation chapter of the
- User's Guide, and the pin list for both the CD4098B and
- CD4538B is Reset, TR_POS, TR_NEG, Q, and QBAR.
-
- SUN (NETWORK LICENSE VERSION)
- If the -q switch is used and if all copies of the program are
- checked out, you are placed in a queue waiting for the next
- available license.
-
- DOS/16M (Extended-DOS VERSION)
- The description on page 17 of the Circuit Analysis User's
- Guide, section 2.1.1.6.5 Virtual Memory, is misleading. The
- DOS16VM environment variable specifies the TOTAL size of
- virtual memory, NOT the size of the swap file. Any difference
- between the value set by DOS16VM and memory actually available
- is made up for by the swap file. For example, if you set
- DOS16VM=4000 and your PC has 3Mb of extended memory, then a
- swap file of about 1Mb will be created for the duration of
- the simulation, etc.
-
- Also, you may use the suffix "M" with the DOS16VM value to
- denote megabytes (1Mb = 1024Kb).
-
-
- 3.0) Program modifications since version 4.05.
-
- PSPICE
- 1. The Probe data file name no longer defaults to PROBE.DAT.
- When a PSpice simulation successfully completes and there
- is a .PROBE statement in the circuit file, a Probe data
- file will be generated and will have the same name as
- the circuit file with a .DAT extension. For example, if
- you ran PSpice with EXAMPLE1.CIR, your Probe data file
- will be named EXAMPLE1.DAT. You may also override the
- default data file name by listing it as the third
- argument in your PSpice command statement.
-
- This file name is stored in the file PROBEDAT.NAM.
- Therefore, if Probe is executed without a data file name,
- Probe will read the file name from PROBEDAT.NAM.
-
- 2. There are two new model parameters for the GaAsFET model:
- VDELTA (capacitance transition voltage) and VMAX
- (capacitance limiting voltage).
-
- 3. There is one new model parameter for the Inductor Coupling
- (Transformer Core) model: Gamma. A, C, K, and alpha also
- have some description modifications.
-
- 4. There are two new parameters for the .OPTIONS statement:
- DIGMNTYSCALE and DIGTYMXSCALE.
-
- 5. Current mode Pulse-Width Modulator (PWM) models (in
- SWIT_REG.LIB) are available and require both the Analog
- Behavioral Modeling and Digital Simulation options.
-
- 6. Unijunction Transistor (UJT) models (in THYRISTR.LIB) are
- available and require the Analog Behavioral Modeling option.
-
-
- Analog
- Behavioral
- Modeling 1. The capability to simulate Chebyshev filters has been added
- to Analog Behavioral Modeling. This allows the user to
- implement a Chebyshev filter based in terms of a set of
- frequency characteristics.
-
-
- PROBE
- 1. If Probe is executed without specifying a data file name,
- it will read the file name from the file PROBEDAT.NAM. If
- PROBEDAT.NAM does not exist, Probe will look for PROBE.DAT,
- and then PROBE.TXT. If neither PROBE.DAT or PROBE.TXT
- exists, then Probe will prompt the user for the data file
- name.
-
- 2. Six new display device drivers have been added: GenericVGA,
- IBMVGAMono, NECHiClrMou, NECNrmMono, VGA800, and VGA1024.
-
- 3. Two new printer drivers have been added: HP_GL2-PCL and
- HPLJE.
-
- 4. The capability to label the coordinates of a cursor has
- been added as an option on the Cursor Menu.
-
- 5. There is now the capability of having multiple y axes. The
- menu options are part of the Y Axis Menu.
-
- 6. The Performance Analysis feature containing the Goal
- Functions has been added to the X Axis Menu.
-
- Performance_analysis allows adding traces that show how a
- derived value changes during multiple PSpice runs. The
- derived value is extracted from one or more PSpice waveforms
- by using search commands, marking points, and evaluating
- expressions of marked points. For example, you could create
- a plot that shows propagation delay as a function of
- temperature, or pulse-width as a function of some component
- value, or frequency of the output as a function of a stepped
- parameter.
-
- 7. For EGA, VGA, and Super VGA displays, the colors for traces,
- cursors, background, foreground, etc., can now be defined by
- the user from within Probe from the Analog Plot Menu.
-
-
- DIGITAL SIMULATION
-
- 1. There are 8 new parameters for the UIO model: TSWLH1,
- TSWLH2, TSWLH3, TSWLH4, TSWHL1, TSWHL2, TSWHL3, and
- TSWHL4.
-
- 2. There are now two types of stimulus devices: the stimulus
- generator (STIM) which uses simple commands to generate a
- wide variety of waveforms; and the new file stimulus
- (FSTIM), which obtains the waveforms from an external file.
-
- 4) Install program for PSpice
-
- The installation program used to install PSpice, INSTALL, is
- licensed software provided by Knowledge Dynamics
- Corporation, P.O. Box 1558, Canyon Lake, Texas 78130-1558
- (USA). INSTALL is Copyright (c) 1987-1991 by Knowledge
- Dynamics Corporation which reserves all copyright protection
- worldwide. INSTALL is provided to you for the exclusive
- purpose of installing PSpice. MicroSim Corporation is
- exclusively responsible for the support of PSpice, including
- support during the installation phase. In no event will
- Knowledge Dynamics Corporation be able to provide any
- technical support for PSpice.