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SPICE: Certainty for All Decisions
Design, validate, and verify the most advanced schematics.
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Simulation / Analysis for PCB Design
Data Management for Component Models in SPICE PCB Simulations
Simulation software is becoming more powerful as time goes on, but the simplest solutions are sometimes still preferable for many applications. SPICE simulations have been around for decades, yet their applicability to a wide variety of circuits and applications is not lost on anyone. With SPICE simulation tools being so popular, it’s only natural that they appear in PCB design software platforms. Devices continue to become more powerful and more
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Oscillations, Clipping, and Ringing in Amplifier Stability Analysis
If you’re designing an amplifier circuit for your PCB, use amplifier stability analysis to understand the limits of stable oscillation.
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SPICE Circuit Simulation Made Simple with Examples
SPICE simulation saves you critical time in the prototyping phase. Understanding your simulation interface makes it simple to analyze how
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S-Parameter Measurements and Errors in Power Integrity
No matter where you look, it seems S-parameters never go away! They are mandatory tools for understanding some systems, such as an interconnect or antenna, while other network parameters can sometimes give a better conceptual understanding of electrical behavior. These parameters are normally reserved for signal integrity among electronics engineers, but if you look hard enough, you’ll find that S-parameters are also used for power integrity
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Working Through Circuit Simulation for Free Often Won’t Work, Try Altium Designer
Electronic Design Automation (EDA) software provides the tools that support the design and analysis of electronic devices, systems, and printed circuit boards. Within this broad definition of EDA software, some companies offer free PCB design programs while others focus on schematic capture, mixed-signal simulation, Very Large-Scale Integration (VLSI) circuit design, and customizable design rule checking. While many EDA software applications
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Photodiode Circuit Simulation and Design for Your PCB
Your design tools should give you an easy way to create circuit diagrams, simulate electrical behavior, and start a new PCB layout. A photodiode circuit is important in many applications, ranging from simple ON/OFF light detection to receiving digital data in an optical fiber. These semiconductor devices are similar to a regular diode, but they can be difficult to simulate without the right component models and circuit design tools. With Altium
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Making the Most of Your Crystal Oscillator
“Blindly” adopting what a crystal oscillator data sheet says usually results in adequate frequency stability. An oscillator requires the phase shift around the loop to be 360° and this total phase shift must be a precise and stable oscillation frequency.
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All About PCB Loss Tangent: What it Means and When it Matters
Do you know the PCB loss tangent for your laminate? Learn more about this important factor and how it affects your signals.
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S11 Parameter vs. Return Loss vs. Reflection Coefficient: When Are They the Same?
What is the difference between return loss vs. reflection coefficient and the S11 parameter? We’ve got your answers in this article.
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How Load Capacitance on a Transmission Line Affects Your Signals
If you ever read about transmission lines and integrated circuit datasheets, there is this seemingly mysterious quantity called load capacitance. This value depends on the geometry of the component lead connected to the transmission line, as well as the substrate material and distance to the reference plane on the integrated circuit die. When working with transmission lines, the load capacitance of a component has some important effects on signal
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Microwave Cavity Resonator Emissions in Your PCB Layout
Even digital designers need to worry about cavity resonant emission in PCBs. Here’s how your circuit board can act like a microwave cavity resonator.
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EMI Filter for Simulating Noise Suppression with Altium Designer 20 and Altium 365
Simulations can get very complicated, but Altium 365 helps you keep your simulation models and data organized.
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Transmission Line Transfer Function from ABCD and S-parameters
High frequency and data rate channels can be routed as a mode-selective transmission line. Here’s when you should consider this routing technique.
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What are Impulse Response Functions?
You can get a transfer function from a simulation, but what is an impulse response function? Learn more in this article.
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Modeling PCB Interconnects as Causal Systems
Real PCB interconnects are causal systems and must be modeled with the correct time-dependent behavior.
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Analyzing Crosstalk on FIFO and DDR4 Parallel Bus Interfaces
Do you need to spot crosstalk on a parallel bus? Use a field solver that integrates with your PCB design and layout tools.
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Spotting DDR4 Impedance Violations in High Speed PCB Design
DDR4 is one of many high speed interfaces that requires impedance control during routing. If you can spot impedance discontinuities, you can prevent excess insertion/return losses in leading to your DDR4 memory modules.
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