PSpice User Guide

PSpice User Guide

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PSpice User Guide Analog behavioral modeling October 2019 337 Product Version 17.4-2019 © 1999-2019 All Rights Reserved. DIFFER The DIFFER part implements a simple differentiator. A voltage source/capacitor implementation is used. The DIFFER part provides one input and one output. Table look-up parts TABLE and FTABLE parts provide a lookup table that is used to correlate an input and an output based on a set of data points. These parts are described below and on the following pages. TABLE The TABLE part allows the response to be defined by a table of one to five values. Each row contains an input and a corresponding output value. Linear interpolation is performed between entries. For values outside the table's range, the device's output is a constant with a value equal to the entry with the smallest (or largest) input. This characteristic can be used to impose an upper and lower limit on the output. The TABLE part provides one input and one output. GAIN gain value ROWn is an (input, output) pair; by default, up to five triplets are allowed where n=1, 2, 3, 4, or 5 If more than five values are required, the part can be customized through the part editor. Insert additional row variables into the template using the same form as the first five, and add ROWn properties as needed to the list of properties.

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