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Design and Simulation of High-Speed Digital

Agilent tools provide views into the time and frequency domains, revealing the underlying problems and ensuring compliant designs. With Agilent, you'll achieve your best design.

High Speed Digital Design Challenges

  • Analyzing complete chip-to-chip links by co-simulating individual components, each at its most appropriate level of abstraction: channel-, circuit- or physical-level
  • Importing backplane S-parameter models accurately into circuit and channel simulations, avoiding causality and passivity issues
  • Correlating measured and simulated data before using simulation to interpolate between measurement planes and extrapolating to virtual prototypes

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Designing and Validating High-Speed Memory Buses (AN 1382-2) 
DDR SDRAM (double data rate synchronous dynamic random access memory) is quickly becoming an accepted technology in the PC (personal computer) industry. Its low cost, high performance, and increasingly wide availability make it very desirable for PC memory buses and embedded designs such as high...

Application Note 2001-12-20

Designing High Speed Backplanes Utilizing Physical Layer Test System 
This Application Note focuses on the problems introduced into the backplane assembly design by the many linear passive components that create reflections due to impedance discontinuities.

Application Note 2006-01-18

Effective Reflection Characterization for Active Devices Using ENA Option TDR Application Note 
This application note describes Hot TDR measurement, which is an effective characterization method for the reflection of transmitter and receiver.

Application Note 2012-01-12

Explore the SERDES Design Space Using the IBIS AMI Channel Simulation Flow 
Simulation of modern chip-to-chip links requires you abandon the SPICE-based approach and adopt a new approach based on an IBIS AMI channel simulation flow.

Application Note 2012-09-21

Frequency Domain Analysis of Jitter Amplification in Clock Channels 
Clock channel jitter amplification factor in terms of transfer function or S-parameters is derived. Amplification is shown to arise from smaller attenuation in jitter lower sideband than in the fundamental. Amplification scaling with loss is obtained.

Application Note 2012-11-01

PDF PDF 257 KB
Limitations and Accuracies of Time and Frequency Domain Analysis of Physical Layer Devices 

Application Note 2005-11-01

Signal Integrity Analysis Series Part 1: Single-Port TDR, TDR/TDT, & 2-Port TDR 
This Application Note focuses on part 1: those which use a single-port TDR, those which use TDR/TDT, and those which use 2-port TDR.

Application Note 2007-01-01

PDF PDF 3.50 MB
Signal Integrity Analysis Series Part 2: 4-Port TDR/VNA/PLTS 
This Application Note focuses on part 2: those which use a 4-port TDR/VNA/PLTS.

Application Note 2007-02-21

PDF PDF 2.75 MB
Signal Integrity Analysis Series Part 3: The ABCs of De-Embedding 
This Application Note focuses on Part 3: The ABCs of De-Embedding explaining different de-embedding techniques & shows how to minimize fixture effects for best results.

Application Note 2007-07-01

PDF PDF 2.44 MB
Simulating FPGA Power Integrity Using S-Parameter Models 
This application note describes how self-impedance (frequency) can easily be determined by simulating the frequency domain self-impedance profile of a Power Distribution Network (PDN).

Application Note 2012-04-02

Simulating High-Speed Serial Channels with IBIS-AMI Models 
This paper reviews some of the benefits and limitations of using IBIS models and introduces the new AMI extensions to the latest IBIS version 5.0 specification.

Application Note 2011-11-15

Using ADS for Signal Integrity Optimization 
This white paper shows how to replace a multi-dimensional sweep of a long running PRBS time-domain simulation (including manual data evaluation) by short, channel-pulse characterization in the Advanced Design System to efficiently optimize a channel.

Application Note 2009-10-19

Using Clock Jitter Analysis to Reduce BER in Serial Data Applications 
This Application Note emphasizes on the emerging techniques for reference clock jitter analysis from the perspective of oscillator physics, phase noise theory, and serial data technology.

Application Note 2006-12-01

Which Electromagnetic Simulator Should I Use? 
This paper outlines three of the key EM simulation technologies, MoM, FEM, FDTD and attempt to compare and contrast the relative merits of each.

Application Note 2012-04-06

PDF PDF 3.21 MB