Keysight extends signal integrity/power tools in ADS simulator

January 11, 2016 // By Graham Prophet
The ADS EDA software provides added capability in channel simulation technology for analysis of high-speed serial links and memory systems; it includes innovative EM-technology (electromagnetic) within a cohesive workflow for SI and PI design tasks, while the SIPro solution provides speed and accuracy for EM characterisation of high-speed links on densely-routed, highly complex printed circuit boards. There are three new simulation engines for power integrity.

Keysight Technologies has added two electromagnetic (EM) software solutions designed to help signal integrity (SI) and power integrity (PI) engineers improve high-speed link performance in printed circuit board (PCB) designs. The solutions – SIPro and PIPro – will be available in the newest release of Keysight EEsof EDA's Advanced Design System (ADS) software.

SIPro uses an innovative new composite EM-technology that delivers high-frequency accuracy, together with the speed and capacity required for densely-routed PCB design. When compared to gold-standard Finite Element Method (FEM) simulations, SIPro demonstrates very good agreement at a small-fraction of the time and memory consumption, even above 20 GHz.

The PIPro solution is a collection of three PI-specific simulation engines for DC IR drop, AC power delivery network (PDN) impedance, and power plane resonances analysis. The DC IR drop simulator provides a table of DC voltages and currents for each via, pin, sink and voltage regulator module in the PDN, enabling SI/PI engineers to predict DC voltage at the pins of the ICs sinking the current. With the visualisation of voltages, current density and power dissipation on the power and ground nets, engineers can identify trouble-spots in the design. The AC PDN impedance analysis calculates the frequency dependency of the PDN with decoupling capacitors in place. With power plane resonance simulation, the self-resonant frequencies of the layout are identified and the electric and magnetic fields visualised to better understand where resonances are originating.