Spectre calculator functions. Mar 24, 2004 · Use AWD calculator.


  • Spectre calculator functions So: cross(VF("/LPFOUT") 750m 1 "either" nil nil nil ) to find the value of the Design Variable for which VF("/LPFOUT") crosses 750mV. Mar 24, 2004 · Use AWD calculator. sample () is different from value (). 5 -64b. This document is meant to be a quick introduction to the basic use of this calculator by going over a basic application. Any input/example on how to do this is much appreciated. Once again they are precomputed calculations. I wonder, if there is something like firstVal() to return the first y-value. "aaa. Both functions invoke an interpolation from PSF data. Example: Imagine a DC voltage sweep from 1 V to 2 V and a resulting output waveform VS("/result") with some arbitrary data. Most calculator functions don't deal with lists, so we can use the SKILL length() function to measure the number of entries in the list. I think the calculator should have this function, but I checked xval function The Spectre language has over 200 different functions. SpectreHDL (Spectre High-Level Description Language) and Verilog®-A use functional description text files (modules) to model the behavior of electrical circuits and other systems. Andrew. We will calculate rise time first. Take any output from your AC simulation - e. When I use xmin and xmax of the output signal with Nth Minimizer value equal to 1, I get the value corresponding to it. 0 . . “ Cadence Spectre Calculator ”, such Tool does not exist. The functions have been updated to operate in Cadence version IC6 as well as IC5. Free functions calculator - explore function domain, range, intercepts, extreme points and asymptotes step-by-step I am using Cadence 6. Regards, Dec 11, 2020 · Dear Shawnlogan Thank you very much for your answer I want to use INL function in the first post I copied wrong expesion DNL instead of INL function from calculator Of course, I also use DNL function after that. il". cdsenv. dividing the power by 2*pi*Fc ? I'm confused how the PN() function implements the calculation of phase noise as defined in the same document: (p. Click "wave" button in calculator window and after that second click on Vout waveform in Waveform window. Regards, Andrew. The cross function can return a list of crossings if 0 is given as the edge number. SpectreRF adds several new analyses that support the efficient calculation of the operating point, transfer function, noise, and distortion of common RF and The Cadence Calculator is a powerful tool inside Virtuoso that allows you to apply a wide variety of mathematical formulas and functions to signals from your schematic. If you mean Calculator in Cadence ViVA or Wavescan, it has no relation to Cadence Spectre. It only works for the first edge not for the second or fourth edge. 6. 8번에서 OK를 누른뒤(OK안눌러도 되기는 함), May 8, 2021 · To this waveform, I want to apply the cross() to extract the x-axis point at which the function crosses a value. I am using IC6. October 2003 9 Product Version 5. 72 and I am running into similar problem using the calculator to find a delay past the first edge of the waveform. PDF-1. I would start by building this up piecemeal if it's not working:. However, the usage of these functions is not quite clear in the manual. e. The following table provides a list of all functions. Jan 1, 2021 · The PN() function is used to calculate the phase noise after transient simulation with this equation: (p. 2 %âãÏÓ 6105 0 obj /Linearized 1 /O 6110 /H [ 8716 2537 ] /L 1306233 /E 59781 /N 202 /T 1184013 >> endobj Feb 14, 2024 · Dear all, Calculator function firstVal() returns the first x-value of a waveform. We can use the Calculator to calculate the rising and falling delays through the inverter and the rise and fall time of the output signal. I've attached my 5 bit output to a 5 bit ideal DAC so that I can Often the simplest way of finding about a particular function in the calculator is to go over the function name in the panel and do Right Mouse->Help. Use correct terminology. I'm able to do it by using the fx button but I would like to know if there is a way to automatic define it in the "Skill User Defined Functions" (Function Panel) by using . 1. Each conversion takes 3us. may you check to see i understoor the concept of Sampling signal and threshod Sampling signal:It is the sampling time that the converter Dec 15, 2017 · Hi guys; I've recently simulated a SAR ADC in Cadence & now I want to measure the INL & DNL of the ADC. This will generate a waveform with the x-axis values as the y-axis - and so it will give you a waveform of frequency versus frequency. Anyway, rather than me writing an abSetName() function - actually it would be tricky to register this with the calculator because presumably you'd want freeform entry for the axis name rather than a cyclic field of predefined units, and if I use this way of registering the function it wouldn't surround the typed in name with quotation marks Jan 9, 2012 · I am applying the "imag" function to the magnitude signal and the result are the same, it shows both have the exact value as you see from the third image (result signal is the one with image fucntion applied) below is the admitance in magnitude here I sent the signal to calculator here is the result after calculator Thank you very much Dec 22, 2017 · spectre thd Hi all, I want to simulate the THD using spectre, I've done the Transient analysis and want to use Calculator -> Special functions -> thd; there're four parameters must fill in, (the first two must start and stop frequency I think, Number of Samples and Fundamental) What's the about SKILL calculator functions, refer to the OCEAN Reference. The example you sent for me helped me a lot. 05 and plot. I would like to add these functions to the function panel in the calculator. This makes me not quite comfortable. PI if we can access the attribute or function of the class directly and there's a class like Math? I used to def a global variable PI = 2*acos(0), as zmleitao did. Hello, I have a question about how to get x value for a given point of y in a waveform. 1. Compute the absolute value of a number. Cancel; SpectralCalc provides tools for remote sensing research and education, featuring an interactive gas spectrum simulator. 89 calculator functions can operate on single waveforms as well as on parametric plots, multiple-parametric plots, and Monte-Carlo simulations. syafiq over 8 years ago. g. I suppose that is done via the calculator special functions using calCreateSpecialFunction and calRegisterSpecialFunction. Jan 9, 2021 · I have some user-defined calculator functions Ex. 2. VF("/out") - the vf button on the calculator can generate this from some node in your circuit - and then use the calculator xval function. 53) Dec 3, 2005 · integration in cadence calculator I think that this function just "calculates" the value of the definite integral of the given signal on the specified interval. I am exploring the special functions in IC 6. (밑에서 설명함) 9. I don't think it can be used to draw the integrated waveform. Open the Calculator with ADE->Tools->Calculator. Apr 26, 2017 · Both sample () and value () are not functions of Cadence Spectre. il" and "bbb. Click the function name for more information, including syntax and examples of usage. Feb 21, 2021 · Your post is a bit confusing - you show one expression which is using IS (but has two value functions around it, so will probably destroy any sweep data and hence give you a single value at a particular corner and Vgs value, so deriv would probably fail). As an alternative, ViVA offers the Spectrum Assistant which is accessible from ViVA's menu as Window->Assistants->Spectrum. Waveform Calculator User Guide Overview About the Calculator Mar 6, 2017 · 을 누른뒤 Direct Form의 Function에서 원하는 정보(여기서는 전압 Voltage)를 클릭합니다. Return the age of a person with a specified birth date on a specified day. Scientists and teachers from all over the world use this to calculate high-resolution spectra of gases or planetary atmospheres in laboratory settings. 맨 아래쪽 Add To Outputs에 Check가 되어있는데 이는 option입니다. I created a simple inverter and used xmin and xmax of the output signal. It seems that defMathConstants() create an instance of a class, and the PI is a function of the created instance. 55) What's the reason for the last term: dB20(twoPi*f0_pss), i. cdsinit or . Isn't it more natural to use Math. - 3 - sml 12/11/2020 Example This example shows the output waveform generated when you apply the dnl function on the following input signal: The following arguments are specified in this example: Dec 17, 2021 · Virtuoso Video Diary: Do More With eyeHeightAtXY and eyeWidthAtXY Calculator Functions in Virtuoso Visualization and Analysis XL 17 Dec 2021 • 3 minute read We live in a world where the idea of usability is to make products easy to use, make things easily accessible, and visually appealing. [/b] Calculator -> Using 'value' in equation. Regards, Lucho. Sometimes it is desirable to refer to design variables when plotting curves. Example Application: New: beginning with V0. However, when I do this, I get "expression evaluation failed" as message. In calculator you will see something like "wavev12s1i1()" Then in thr calculator window select "Special Functions" -> xval Then multiply it by 0. Hello, I am having a problem to extract values from time domain simulation. I have designed this ADC for 5 bits & therefore we are going to have 32 states in the output. Sep 28, 2023 · The ViVA Calculator (which you showed in your screenshot of your first Forum post entry) provide access to the dft() function as well as to the psd() function. A very simple way to do so is to define a simple veriloga model that performs the function 1/s. a) Select the transient output signal. pwzibtu kzitjzc hufmh zpfv jugc grb fvjqq sgemk opcfhv rfeuxnc