Spectre calculator functions. 9 is my threshold value.
● Spectre calculator functions A very simple way to do so is to define a simple veriloga model that performs the function 1/s. Stats. I am using IC6. Do I have to ensure that the input signal to the bandwidth function is in a particular format like non db20 or only a magnitude function ? 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. For a start, calculator functions produce a scalar, waveform or family of waveforms from about SKILL calculator functions, refer to the OCEAN Reference. : HITRAN 2020 — The 2020 HITRAN line data is now available. Joined Send the two waveforms that you want to plot versus each other to the calculator, and then on the waveVsWave form you can pick which you want as the x-axis and which you want as the y-axis. On average, you will find 50 blocks every day. 21). 0 . When I use "dBm" function, it gave me wrong calculation which did not correspond to the value of conversion from Volt to dBm. If you have a question you can start a new discussion functions in spectre assert expression. I think the calculator should have this function, but I checked xval function, it doesn't work for me Let me make my question more specific: for instance, if I sweep variable vinn, the circuit output is called vout, how we can find the vinn for vout = 2V? Photonics Project - Blackbody Calculator - blackbody radiation - blackbody emission - spectrum - Planck Function × Back Home OCEAN Reference June 2004 5 Product Version 5. -----Get a tool like the 'Calculator functions' from advICo Microelectronics from Germany that will do this for you automatically. benever Member level 5. Whats the difference in between ICFB 4. 3. Mar 8, 2008 But I got on my own on how to use 'phaseMargin' function in Cadence ADE Calculator version 5. I have another question about spectre calculator: why i use spectre calculator function "psd" to plot PSD is differ from just only use fft function? It seems (fft reult)*2 =( psd result). This discussion has been locked. That sets the Where do I strobe from and what settings to I use to strobe in the transient analysis settings or elsewhere in Cadence Spectre settings - what value do I use Public Types | Static Public Member Functions | List of all members Cce::CalculateScriPlusValue< Tags::ScriPlus< Tags::Strain > > Struct Reference Computes the leading part of the strain \(h\) near \(\mathcal I^+\). I've attached my 5 bit output to a 5 bit ideal DAC so that I can You then need to register the function in the calculator (Andrew includes this in the instructions in the comments header of the file) in the CIW: abRegMovingAvgSpecialFunction() Once the calculator is open, you can now utilize the function by providing a waveform followed by the period over which to compute the moving average. I think the calculator should have this function, but I checked xval function, it doesn't work for me Let me make my question more specific: for instance, This Spectre Divide sensitivity converter/calculator is a free tool that allows you to convert and transfer sensitivities between Spectre Divide and other games. This website uses essential cookies that are necessary for the operation of this website and that are always set. I run a power sweep in a single tone HB simulation for an amplifier, say with a input power sweep range from -30dBm to 10dBm. The two contours are plotted for fundamental frequency. October 2003 9 Product Version 5. You will need to write your own calculator functions to implement the functions. This makes comparing the signals very difficult. Yes, but how do you get the average to output a time-dependent average waveform, and not a scalar? Cancel; Vote Up 0 Vote Down; How to use spectre calculator to return x value of a given y? Thanks. i can successfully perform the analysis, and can plot loop gain's phase/magnitude without issues. I want to count the number of times an analog waveform crosses a threshold. Click and hold the Special Functions Button on the calculator. In calculator you will see something like "wavev12s1i1()" Then in thr calculator window select "Special Functions" -> xval Then multiply it by 0. The cross function requires a threshold but in this case the threshold value (from the other waveform) is a variable. then perform any function from calculator. I want the exact two x values where the y value is constant (e. Regards, Community Custom IC Design calculator delay function. For example, the function will accept a transient waveform and calculate a moving average in a window twindow. CDRCDR Member level 4. However, when I do this, I get "expression evaluation failed" as message. the captab results are only printed in the simulation log (spectre. cadence calculator xval Hi guys, I have the following trouble with Calculator tool in CADENCE Analog Design Environment I am doing a transient analysis, and I want to compare the derived result with a strait line. Then you can apply deriv to the result of this. It will do so , lets say 3 times, in a period in time (I am going to clip the time period in the Spectre calculator). As an alternative, ViVA offers the Spectrum Assistant which is accessible from ViVA's menu as Window->Assistants->Spectrum. Part of the trick in using this function is how to specify the time points. Hello, I have a question about how to get x value for a given point of y in a waveform. I have designed this ADC for 5 bits & therefore we are going to have 32 states in the output. 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. scs I am doing a simple DC sweep & using the cross function in the calculator, i am finding the x-axis in my sweep range for a particular y-axis value. wpchan05 Full Member level 4. select other wave. I would like to add these functions to the function panel in the calculator. Joined Oct 5, 2006 Messages 90 Helped 1 Reputation 2 Reaction score You can find the function in the calculator, "special functions". What I am running into for the first time in a project is that for the pmos devices, the vdsat values are positive and the vds values are negative. VF("/out") - the vf button on the calculator can generate this from some node in your circuit - and then use the calculator xval function. g, -4. I am interested in doing INL/DNL of DAC/ADC using Cadence Spectre Calculator as opposed to just doing post-processing in MATLAB. : HITRAN 2016 — The 2016 HITRAN line data is now available. 778e-06. I have no experience using the INL or DNL functions in the Cadence Spectre Calculator. I'm trying to find the period of a waveform in Cadence Virtuoso ADE using the calculator function. I would like to apply a function (like slewRate or peakToPeak) to all of them and take the maximum of the result (which should be a single number per simulation run). Here we use 1000 to check the gain at 1kHz and click OK mode—Specifies the mode used to calculate the threshold value. 8. 5. RT() for the node potential vs. I get the following error: I need to calculate average power in transient analysis using cadence tool, Difference between AVG and AVGX functions in PSpice Probe Window. To use it, use the "fx" button in the calculator function panel and navigate to the file - it will add the calculator UI too which works just like analog2Digital. Search for content related to Spectre Lord in the Central Wiki Forums by clicking here. What's New at SpectralCalc! HITRAN 2020 — All HITRAN gases (1-55) now available. . Each of the calculator functions has a corresponding SKILL command. Want What is the potential difference between HSPICE and Spectre ? difference between fingers and multiplicity in simulation. You can also just type these values in once you are familiar with the equation calculator cadence i need to find the rise time in cadence spectre. Use the histo() function on matlab to plot the histogram. So: cross(VF("/LPFOUT") 750m 1 "either" nil nil nil ) to find the value of the Design Variable for which VF("/LPFOUT") crosses 750mV. Search for content related to Crimson Spectre in the Central Wiki Forums by clicking I am running a . At this point you Earlier, with the eyeHeightAtXY function, you could only calculate the total eye height at the specified point in an eye diagram. The input to the DAC can be given by a ADC created using verilog AMS. syafiq over 8 years ago. For details,Pls use help. I have a time domain simulation from 0s to 32us (x-axis) and 0V to 3. When the average power is to be calculated throughout the complete time period of the waveform t, you may use the AVG function AVG(W(t)) . Click on average. Mar 4, 2009 #5 W. I will study the ""Autonomous-Shooting-Newton-PSS of Cadence Spectre" and "Transient-Noise Analysis. Applying Instrument Functions. 0. Similarly plot GPC (Power gain Circle). il" and "bbb. Eq. I'd like to add some stability factors (besides the built-in K and B1 factors). 0 Important In the remaining discussion, you can assume that the original signal and j(t) are both T-periodic functions. Now can you please let me know which command should I use to measure the total power? Thank you. I can always use the calculator to negate one, however, this I'm looking to add some user-defined functions to the Wavescan Calculator. Start with choosing the following parameters (to calculate those you can use the spreadsheet Spectre_DFT_calcs. 500. For more information about SKILL calculator SpectreRF adds several new analyses that support the efficient calculation of the operating point, transfer function, noise, and distortion of common RF and communication circuits, such New: beginning with V0. There are currently no standard calculator functions for SNR and SINAD. cdsinit or . With my regards! SpectralCalc provides tools for remote sensing research and education, featuring an interactive gas spectrum simulator. 2. This will open the Calculator, and the name/path of the specified power waveform should appear in the display (see Figure 5). It seems that defMathConstants() create an instance of a class, and the PI is a function of the created instance. We will calculate rise time first. This makes me not quite comfortable. 12 where EL is the lower state energy of the transition (also provided by HITRAN). Scientists and teachers from all over the world use this to calculate high-resolution spectra of gases or planetary atmospheres in laboratory settings. I know there is a difference in so called 'period jitter' and 'TIE' jitter measurement, but I am not sure which one to use when and which result is more accurate. 3V (y-axis). To apply an Instrument Function on SpectralCalc, select the type of function and specify its width W. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more. 3. pdf from EE 223 at San Jose State University. a) Select the transient output signal. Hello, Suppose I have multiple simulation outputs, like /VA, /VB, VC<1> and VC<2>. com Function = SP, type = Rectangular, Modi er = dB20. Hi Faisal, I had a few minutes on a plane yesterday (I know how to have fun!), so I threw this together. Regards, Andrew. In this example, the output of a residue amplifier needs to be analyzed. Sorry for the mistake. 10. Ver. The composite effect of the vibrational and rotational partition But it fails ( no annotation, calculator also fails to return te jitter value) when I do a corner simulation. Then click on Tools > Plot. Sweep gain level (dB) at frequency = fundamental freq from xdB to ydB (say 14 to 18dB) with steps in dB (say 0. Is is calculated simply by Vgs, Vth, Vds? Or Is there any other thing done for. My queries-1. When I want to use calculator count something about the "a", you know it's a variable, and the calculator's special functions usually cann't hold. If you mean Calculator This document describes how to use the spectre simulator and Cadence tools to measure various power metrics for a circuit design. 1. 46 and 5. Open the Calculator with ADE->Tools->Calculator. With your consent and by selecting "Accept All Cookies," we may also enable non-essential cookies (such as analytics and behavioral cookies) in order to personalize and enhance your experience on our website. Use AWD calculator. Then Click button "deriv" to derivative or "integ" to integrate it. I believe his is a rather tricky one. spice netlist using spectre. Hello, I am exploring the special functions in IC 6. ods, the download link is at the bottom of the page) f max: max signal frequency you Hello, I have a question about how to get x value for a given point of y in a waveform. or where i can find any reference about it. The following table provides a list of all functions. The functions have 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. Before running the Monte Carlo analysis, I do a simple dc simulation with Spectre. However when I sweep a variable using parametric sweep the expression fails to evaluate on the multiple outputs. 41 4 Working with SKILL 1) from the simulation ersults using waveform viewer u can select the calculator ( there you will see many functions) 2) else to direct dumping of the value in a file using MDL approach if you are using command line spectre run you can give spectre mdl run to compute that value as below spectremdl -b file1. PlotKf and B1f. The expression calculates exactly what i want on a single run. You can no longer post new replies to this discussion. 020170. I think the calculator should have this function, but I checked xval function want to review the manual for your own handheld scientific calculator. With a hashrate of 100 Kh/s, which equals to 0. Get priority use of advanced, state-of-the-art radiative transfer algorithms--the same ones used by NASA for many remote sensing missions. In function chooseLSB (Load For calculator function, you do not need to selectResult(), you can run OP() after you openResults() JD JD, Jul 30, 2007 #3. But I can't see how to tell the delay function to look at a parameter for the trip point on the input. [/b] 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. Here you go! For details, you need hit the manual of "calculator" of Cadence. Free Online Fourier Transform calculator - Find the Fourier transform of functions step-by-step spectre and then script the wavescan calculator in order to have that one dump some tabular data to disk, but it seems that there is no such feature as "load script" in wavescan. 6. Doing this man I have a question about the use of calculator functions. But, this gives the magnitude of the result in Volt. Andrew. I am designing a multi-stage op amp and wanted to be able to use the Simulink control system toolbox to optimize my op-amp and take some of the guess work out. This cross function now gives the time point when the signal enters the P% range and settles. It gave me the pulse of the first For this, I am using the 'cross' function from Cadence calculator. And click toolbox icon "Graph X" to plot the View Using Calculator in Cadence Spectre. 25 dB). or you can evaluate buffer by checking evaluate buffer check box. Are there any examples or guidance on how to use these functions for these types of measurements Hi Andrew Following the above post, I have a similar inquiry wherein I have a CMOS OTA and I have to plot its THD in Cadence Spectre. The auto threshold is calculated as: 1. The functions delay() and riseTime() can be use to calculate the delay time, and rise and fall times, respectively. The RA generates 2X gain for a Hello all, I'm working on the design of an operational amplifier using Virtuoso 6. 05 and plot. Plot type choose Z-smith . Staff member. DFT, or Discrete Fourier Transform, using Cadence Spectre using the provided spreadsheet to easily calculate the DFT parameters thd in spectre If you have in your transient responce current i. Hi Andrew, yes I have but didn't find any expression used by the calculator. So I wrote function below:;Function to resample sourceWave by points from pointsWave;sourceWave waveform to be resamled;pointsWave from this waveform points taken to resample sourceWave procedure( resampleByWave(sourceWave pointsWave) You could use VIVA calculator's dnl and inl expressions, in Cadence/Spectre user guide there are useful descriptions how to use the builtin functions. I thought I could use famMap function, but couldn't manage to do it. 6. It also provides instructions for use describing the navigation, data input, results, and library sections of the calculator tool. Use correct terminology. 1x + Select the average function from the list of functions in the calculator. Ring Oscillator Spectre Deck for Inverter Ring with No Fanouts (inverter_ring. Calculator -> Using 'value' in equation. 0583% of the network, you will have 5037% chance of finding a block in a day. 9375MHz N ´= and the input bin is fbin = 7. Has anyone added their own functions? an = function (arbitrarily so, but finite slop). I got a reasonable value, but I am wondering, what if I use period_jitter function in the calculator. We have designed Content Addressable Memory (CAM) using 45 nm technology in CADENCE Spectre simulator. I created a simple inverter and used xmin and xmax of the output signal. 6 1 "rising" nil nil ) in the calculator for my first edge and send it to the ADEL output. You may want to adjust it if you don't like any DC offset it introduces if the signal does not start at its average value Stability Analysis in Spectre is there. -If I uncheck "timed" under the label "Misc", the table is available through "Results->Print->Capacitance Table", but the captab is run only at the final transient operating point. However, many quantities in circuit design have to be computed based on a simulation result. 32 ?? Documentation on how to edit this page can be found at Template:PetInfobox/doc. Hi there, Ive been a bit wondering about calculator function of "operation region". Hi, I am running a transient simulation for x seconds. We provide a variety of Instrument Function types to choose from: Here x = σ/W. Thank you. Spectroscopy and remote sensing tools for researchers, teachers, and students Subscribe now for full access to the Spectral Calculator tools. 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. In the Waveform Window, select the third to last icon that looks like a calculator, labeled "Calculator". i have a question on stb analysis in spectre. Hello, I am having a problem to extract values from time domain simulation. Now setup a cross function for abs(FIN-WAVE1) to cross the threshold of abs(FIN-INI)*P/100 and measure the last edge (-1 edge number) and the edge can be "either" (instead of rising or falling). Parallel computing has become available based on the MPI protocol. sp) 284 Alphabetized Functions for Spectre. If you run xf analysis, then you tell it where the output of the circuit is, and then just point at each source to get the transfer function from each source. and include vibrational and rotational partition functions, QV and QR: V S(T,P) = S 0 Q V T ()0 Q R T ()0 Q ()T Q R ()T exp hcE L ()kT exp hcE L kT ()0 1 exp hc c ()kT 1 exp hc c kT ()0 . Thanks in advance. il". Fixed several bugs related to GUI operation. If you want that the Virtuoso Visualization and Analysis XL calculates the threshold value, select auto. Locked Locked Replies 1 Subscribers 118 Views 3806 Members are here 0 Subscribe now for full access to the Spectral Calculator tools. The DNL for a DAC which can be simulated through its range using a DC sweep simulation and using a simple formula in Cadence Calculator. Here is the procedure to do that: Create a test bench with the DAC with all sources with DC values so that the DC simulation can power up. ) Then hit the plot button of the calculator, and your waveform will be plotted. out shows spectre eye calculation From the wafeform window (I assume awd here), clikc the "calculator" and then go to "special functions" and then clik "EyeDiag". The converter supports many game conversions and provides an effortless way to Hi, I have an expression setup in ADE-L using the sample function in the calculator. 9 is my threshold value. 281 Ring Oscillator Spectre Deck for Two-Input NAND Ring with No Fanouts (nand2_ring. Cadence Calculator Function for difference between two voltages. The Function Calculator is a tool that allows you to many properties of functions. 1) Calculate in,nom 6 FFT s f 10 N26. Cancel; Vote Up 0 Vote Down; Cancel; Pyroblast over 8 years ago. Sang-Soo To create a dc_gain value click “value” from the Function Panel to get a new window shown below. Alternatively, you can break the loop (at a high impedance node) and run an AC analysis to view the PM . out) but the "Results->Print->Capacitance Table" option is grayed-out. spectre psd Hi,guys, I'm going to draw the psd of my tran output, but i've got some question about how to setup the 'psd' function. JustinTaylor86 over 13 years ago. They both vary periodically with period T. Browse for "virtuoso visualization and analysis xl user guide" on Cadence community forum. I have been asked to define a new set of data access functions for Viva Calculator, e. The calculator has the "bandwidth" option, which I am not sure how to use for calculating the bandwidth of the output signal. however, when i try to select other functions, like PM Frequency, GM Frequency, Gain Margin or Phase Margin, i get a notice that the particular Using the cross function, it generates a number of points, where the lowest and the highest values are the right values that I want. After a brief introduction to the I means, when I work with cadence IC5141, I want to do a spectre simulation, so I get a design variable like "a". Dose anyone to show me some refrence about this. I would like to find the maximum difference between the applied input voltage and obtained output voltage over the duration of the x second transient simulation. Cancel; It's far from clear to me why this would be useful to have as a calculator function. " I don't understand "Transient-noise analysis" well, You already can give time arguments to the clip function, so I just don't get what you're asking for? Regards, Andrew. A menu of functions should appear. 0. Hello! I am using Spectre to run a simulation on a design--it is a standard potential/flow model, but the variables are different. 12) onwards. 7 (2015/11/14) Accurate, rapid online simulation of high-resolution molecular spectra, and other spectroscopy tools for researchers, teachers and students. If you want to specify the threshold value, select user. I am also aware that cross function used here gives the user the choice for rising edge or falling edge. why not the cross function is showing just two values instead of lot of points in the middle of those two points. The Spectre language has over 200 different functions. Simulations in Cadence yield very useful results. Make sure you read that part carefully. (The getAsciiWave function assigns a name automatically. 479' sub-version 16. ("/Pout") 0. Then calculate the process gain you need for your FFT based on your expected linearity. 9 0 "either" t "time"), where OUT_SF is the output of my comparator and 0. It also fails when I do a single corner, Vtune sweep. It needs the code from this post too (I made life easier for myself by reusing some of that code). isr9. This will print the average value in the white box in the calculator: To do this a little complex math is required to calculate R and X including functions real(),imag() and complex(). time. I use parametric analysis tool and sweep the "a". Re: calculator in canence??? first click on wave button in calculator then select wave in the waveform. Now, the eyeHeightAtXY function allows you to specify one more argument, Output, to To this waveform, I want to apply the cross() to extract the x-axis point at which the function crosses a value. I noticed there's a filter pull-down menu on the bottom-right corner of the calc that allows this. Products Spectre outputs number (0-4) in a rawfile. Then performed parametric sweep. The line has the equation: y=0. Click "wave" button in calculator window and after that second click on Vout waveform in Waveform window. The example you sent for me helped me a lot. Length: 2 Days (16 hours) Become Cadence Certified In this course, you learn to perform Transient Noise Analysis using the Spectre® Simulator in the Virtuoso® Analog Design Environment (ADE) Suite. Method: use cross/intercept/delay commands of the calculator Problem(s): 1) I thought I could use delay to select the difference between input crossing a voltage & the output crossing midscale. g. . 4 f 100 ´=´= 2) Find the closest prime number to in,nom FFT s f N f ê ú ê ´ ú ê ú ë û, that is 7. Cancel; Vote Up 0 Vote Down; Cancel; BaaB over 8 years ago. Free functions calculator - explore function domain, range, intercepts, extreme points and asymptotes step-by-step 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. In function selectGAC (available gain circle). Hi All, I am trying to use the bandwidth function in Virtuoso calculator in IC6. could you please tell me how should i calculate the SNDR in spectre calculator. 283 Ring Oscillator Spectre Deck for Three-InputNAND Ring with No Fanouts (nand3_ring. I guess that I can load any skill script, but I was trying to do something _easy_ here and not start off with a 5000+ function functional programming language that Per the manual (Virtuoso Visualization and Analysis XL User Guide, Calculator Functions, Special Functions, dnl), the calculation is pretty much what you have said. This document is Both sample () and value () are not functions of Cadence Spectre. Explicit rational function solutions for the power spectral density of stochastic linear time martiniani-lab/spectre. Waveform Calculator User Guide Overview About the Calculator The calculator has several kinds of buttons. Note that the function only appears in the functions panel from IC616 ISR12 (6. There are also situations when the noisy output signal is sampled while it is crossing the Calculator Users of Virtuoso Visualization and Analysis can perform post-processing calculations using: • Graphical calculator • Equation builder The calculator contains a wide range of built-in mathematic, logarithmic, RF, and special functions and modifiers that can be applied on signals and waveforms to measure various design specifications. SteveVrk over 3 years ago. 10. e I2, then you first press wave,it and then you press the waveform in transient responce so the expression is in the buffer. I am trying to extract a symbolic transfer function from a circuit I have so that I can use that transfer function in Simulink. But it fails ( no annotation, calculator also fails to return te jitter value) when I do a corner simulation. If SkipForStaticBlocks is true, then this action does nothing if the block of the domain is time independent. Use this to print out ascii data in a file. dnl[k (or maybe k+1)] = (sig[k] - sig[k-1])/ideal_step - 1. It is a reference, not a tutorial; therefore, you can apply Alphabetized Functions for Spectre. Plot. The expression I use is the following one: cross(VDC("/OUT_SF") 0. 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 . If you have more than one sweep and it’s the wrong variable as the innermost the you could use the swapSweep function and then use the deriv on the result of that. Applying calculator function to multiple signals at once. In calculator window,there is a menu called "Special Functions" ,click on it there will appear many useful functions, choose dft then specify required parameters, you will get the wanted results. Locked Locked Replies 5 Subscribers 118 Views 26598 Members are here 0 This discussion has been locked. may you check to see i understoor the concept of Sampling signal and threshod Sampling signal:It is the 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 Hi guys; I've recently simulated a SAR ADC in Cadence & now I want to measure the INL & DNL of the ADC. Subscribers gain access to large wavebands, multiple gases and cells, choice of units, radiance spectra, 🌟 Introducing Spectra Solver: Your All-in-One Scientific and General Calculator! All-in-One: From matrix computations to general math functions, Spectra Solver has you covered. If you have a question you can 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. As you might know already, in Cadence Spectre, we can plot the spectrum of a signal (say, output of an amplifier) using "dft" function of the Calculator. (recursive, element-wise, matrix inverse and simulation) to calculate the power spectral density of stochastic dynamical models exhibiting fixed point solutions. I have another question that would be appreciated if anyone could help me. Click the function name for more information, Spectre expressions support the following standard math functions. \$\endgroup\$ – Bimpelrekkie. : Water Action that initializes or updates items related to the spacetime background of the CurvedScalarWave system. Using the cross function, it generates a number of points, where the lowest and the highest values are the right values that I want. enter into stact by pressing enter button. Dec 19, 2012 #3 erikl Super Moderator. Select Auto calculate for beat frequency. Hello, I have a question about how to get x value for a given point of y in a waveform. , heat load on the inner wall of the vacuum chamber). Andrew Beckett over 4 years ago Applying the instrument function to the individual spectra and then combining them will produce erroneous results. Hence, I cannot comment on the nature of its expected inputs nor its expected output. thanks a lot~~!! Mar 4, 2009 #4 Could you please explain a little more how coz there is no SNDR function in the spectreRF calculator. Explore math with our beautiful, free online graphing calculator. Hints, guides, and discussions of the Wiki content related to Spectre Lord should be placed in the Wiki Page Discussion Forums. Then I calculate the AMAM (single tone amplitude distortion) by plotting (PowerGain_vs_InputPower)-(PowerGain@-30dBm). SJSU EE220, EE223, EE230, EE288 Using Calculator in Cadence Spectre Prof. Mar 2, 2007 #5 C. Is it possible to implement the same using veriloga code? 2. Lastly, in the calculator, choose menu "Edit / Paste". Thank you so much. at the current network hashrate. I did see in the Calculator screen shot that you used in your post the function was used as an argument to the Calculator real() function. I know how to run the XF and PZ analyses, but I'm not sure how to use them to How to calculate setup time and hold time of a memory circuit in CADENCE Spectre Simulator?. This is what I am trying, it creates a waveform (N time points, with associated values). I I have some user-defined calculator functions Ex. RobinCommander over 10 years ago. For the "table" function in AWD, you also need to choose a name for this new "waveform", which will appear in the waveform viewer when you plot it. It is REALLY easy to fool yourself using the built in functions. The authors discuss There are currently no standard calculator functions for SNR and SINAD. 3) Then the actual input frequency is s FFT 7 f 10. Get priority use of advanced, state-of-the-art radiative transfer algorithms--the same ones used I had the following setting for the dft function in Cadence Virtuoso Calculator: But it gave me some negative values in the spectrum: So why there are negative values? I suggest experimenting with the dft function on a known signal (like a sinewave) to learn how it works. We include examples of various biological dynamical Community Custom IC Design functions in spectre assert expression. I have been using the calculator in wavescan to find itnow i have to test the circuit under different vdd conditions for which the expression for risetime also changesis there any way by which i can use a variable as then u can create this equation in spectre , calculator khouly . Will a calculator function called frequency, computes the frequency of oscillation from the transient response? The frequency function will tel you the average frequency of a transient waveform - so you'd want to leave it to settle, and You probably first need to convert that bus of analog voltages into a bus - which you can do via the Measurements->Analog to Digital in ViVA (you can choose whether signed or unsigned, and the radix) and then having plotted that, you can take the resulting bus and do Right Mouse->Send to Calculator or Send to ADE to add into your output measurements. 89 calculator functions can operate on single waveforms as well as on parametric plots, multiple-parametric plots, and Monte-Carlo simulations. Take any output from your AC simulation - e. spectre -W => Tool 'cadenceMMSIM' Current project version '16. Feb 28, 2007 #3 B. 479. Jitter Measurements Using SpectreRF Application Note Measuring Jitter March 2006 7 Product Version MMSIM6. Isn't it more natural to use Math. So, I used the abs_jitter function to find the RMS jitter. Joined Sep 9, 2008 Messages 8,108 Helped 2,695 Reputation 5,370 Reaction score 2,308 Trophy points The Spectre simulator's OCEAN language should use a I do not know of a Calculator function "Accuracy_C". Cancel; Vote Up 0 Vote Down; Cancel; liorscotland over 7 years ago. These functions can be used in all Spectre file types. After that select from special functions thd. Possible values are off, triode, sat, subth, or breakdown. sp) . When I use xmin and xmax of the output. I have also verified with 8*f_RF-9*f_LO that the function evaluates to 'nil' even though this is a positive frequency, and all other cases where the sum of the harmonic numbers is greater than or equal to zero evaluate properly as expected in ADE XL. The expressions you give would actually be computing the transimpedance (assuming the output was a voltage) or current gain (if the output was a current) because you're getting the "DATA" from the terminal of each Mining solo with 100 Kh/s The SPR network have an estimate of 86400 blocks per day, and a network hashrate of 171. Cadence virtuoso calculator manual Here you'll find some short tutorials and beginner tips at the Cadence EDA Suite for analog design IC (Virtuoso and Spectre); it's not common as to tutorials on how Cadence Virtuoso works, instead this page is intended as a resource on some specific topics that are sometimes just skimmed in introductory tutorials. Click the function name for more information, Calculate the specified summary over the specified dimensions using the current working set. Ask a Question. “ Cadence Spectre Calculator ”, such Tool does not exist. Menus Mode buttons Special Functions menu Implemented a new function to calculate the surface power density (e. Cadence SPECTRE DFT. You may also wish to right-click this box and view the waveform, as well. help, especially when pointing me in the right directions. On doing a Noise Analysis and then Print->Noise Summary and then printing the noise integrated in a bandwidth of 50Hz to 8kHz, I got a statement in the Results Display Window which says 'Total input referred noise is 2. The calculator value should be VT (“/output”). So, in short it seems the jitter calculation fails when I have a family of waves. For help on any button or area, click the labels below. spectre dft Hi 020170; You can use calculator do dft analysis . Cadence Spectre Prepared By: Rishi Todani rishi@32mosfets. Unlike the initial issue I have hundreds of vsource and isource (I am using a power grid benchmark). Joined Feb 16, 2006 Thirdly, open the calculator with menu "Tools / Waveform Calculator". Commented Mar 22, 2021 at On the calculator there is a printvs function. See also: Alphabetized Functions for Spectre. then press plot it will plot the desired result in waveform window. "aaa. cdsenv. I used the cross function to return the plot of the pulse vs temperature. On the other hand, theoretical computations assist the experimental assignments. hanm . 1, which displays direct result (no need to subtract result again from 180) on ADE Outputs I needed a function that will resample waveform using points from another waveform. No more switching between apps! Under Active Development: We ensure continuous improvement. These functions can be selected using the "Special Functions" menu or can be typed in manually. I have done parametric analysis in 5 frequency steps and then when I went to calculator and filled in all 4 parameters and clicked THD in special functions it simply gave me a scalar value. Community Custom IC Design Calculator - Special Functions (xmin & xmax) Stats. (what I did is using ac analysis and then use the calculator to plot the bandwidth which did not plot any result) Bests Assuming you're using IC615 ISR12 or later, you can do this in the calculator using: imag(ypm('sp 1 1))/(2*pi*xval(ypm('sp 1 1))) I got the ypm part by using the Direct Plot Main Form, finding the sp results from sp analysis, and then using the "add to outputs" for the YP section of the direct plot form when I hit Y11. Each of these tools have a manual that you can read for more info. Click vt for transient voltage and then select the output node in the schematic window. It is used after you run an AC analysis. Cancel; Hello Andrew,I am using ADE explorer,I am doing DC sweep from the calculator i have exported the expression of derivative of Ids as shown bellow. ; register the abMovingAvg() special function with the calculator abRegMovingAvgSpecialFunction(); example of usage: abMovingAvg(v("signal" ?result 'tran) 5u) The code is based on the VerilogA in solution 11277434. Each conversion takes 3us. Hi, I am trying to calculate the time at the intersection point of 2 waveforms in a transient simulation. mdl -d file2. This is a performance optimization to avoid updating the background spacetime in blocks that are time independent. When i attempt to use complex() in a global variable assignment I get a sim err and the spectre. Easily explore functions by examining their parity, domain, range, intercepts, critical points, intervals of increase/decrease, local and global extrema, concavity intervals, inflection points, derivatives, integrals, asymptotes, and so on. Hints, guides, and discussions of the Wiki content related to Crimson Spectre should be placed in the Wiki Page Discussion Forums. I don't think it can be used to draw the integrated waveform. The cross function looks like this in the calculator (For P=1%): When you first visit the spectral calculator webpage, you'll find this pop-up window that provides an overview of the tool and the calculations it performs, including relevant citations and contact information. 52 MH/s. supermos over 12 years ago. Or you can go over the function name in the function panel in the calculator and do Right Mouse->Help which will take you to the help for that particular function. Spectra calculations are an important branch of theoretical modeling, and due to the significant improvements of high-level computational methods, the calculated spectra can be used directly and sometimes help to correct the errors of experimental observations. ivheaszjdvfcryzgirpdavxzanjtgzxluhnyzkwsqqiepijpsptbtpj