As clock frequencies increase the integrity of PCB signal tracks - transmission lines -becomes more important to ensure the correct waveform at the receiver.  Traditional rules-based approaches run into problems at higher switching speeds and neglecting this part of your design could result in cross-talk, high ElectroMagnetic emissions, glitches, ringing, reverse voltage and, worse, reverse current and so on.

HyperLynx from Mentor Graphics is split into two simulators - LineSim and BoardSim. LineSim models the intended PCB track prior to layout and ensures layout proceeds promptly with a high level of optimism of correctness.  Track lengths, termination, spacing, stubs, fanout and so on can all be modified using a "what if..." analysis approach.   BoardSim can then analyse the board layout from any PCB router for signal integrity problems with the ability to cross-probe back to LineSim if necessary.

Click here for

• HyperLynx Webpage

• HyperLynx EXT datasheet

• HyperLynx GHz datasheet

• HyperLynx Evaluation

• More information

Benefits of HyperLynx

• Model the overshoot and undershoot (reverse voltage/current) of a track

• Quickly simulate a transmission line and the effect of any physical changes

• Identify the correct termination and component values for any given line

• Modify tracks to identify a "common" termination resistor value

• Check for and mitigate potential EMI/EMC problems 

• Identify where cross-talk is occurring between signals

• Avoid multiple prototype re-spins to "fix" signal integrity issues

• Support for single and differential tracks and some cabling

• Tutorial and Demonstration software available for evaluation

*Simulate High-speed tracks 

Avoid PCB re-spins

*  Reduce electro-magnetic emissions

HyperLynx EXT 

Further info

HyperLynx GHz*

Model more lossy signals at 1 GHz or faster i.e. serial interfaces, very fast clocks etc

Further info