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LINESCOPE ™  V.3.0  


The following describes the various Features of LINESCOPE V.3.0.

 Simulation Capabilities of LINESCOPE

 LINESCOPE can be used to analyze the signal integrity and performance of any Analog/Digital network or circuit made of  lossy transmission lines and lumped RLC elements. LINESCOPE will provide a library of various transmission line configurations of both circular and rectangular cross sections.  LINESCOPE can terminate any point in the network using a built-in library of shunt and/or series lumped RLC elements. Components and gates in the network (Analog or Digital) can also be included using their input or output impedance (depending on the component acting as load or source) and any termination elements. LINESCOPE simulates all aspects of the system under simulation including transmission line parameters, interconnection network configuration and excitation input signal.  LINESCOPE virtually allows the use of any voltage waveform of any shape or frequency (subject to the host machine numerical limitations) as the clock source. This input voltage signal can be defined by the user and applied at any point on the network. Upon the completion of the analysis by LINESCOPE, a user can observe Voltage, Current and Frequency responses of the network at points of interest as well as line impedance of each transmission line in the network as a function of frequency.  LINESCOPE permits independent modification of the parameters of any transmission line segment or other elements of the network. LINESCOPE also allows inclusion of wave guides and Vias as part of the network.  There is no limitation as to the geometrical dimensions of the lines that are used in the networks simulated by LINESCOPE. This feature makes LINESCOPE capable of simulating board level as well as device level circuits.

 Input Parameters to LINESCOPE

 The only input parameters needed by linescope are: transmission line geometry, line configuration, interconnection pattern, physical  media parameters and input signal. There is no need for the user to enter higher level parameters such as  line inductance, capacitance, impedance, time delays; or perform field analysis of any kind.


 A High Speed Simulator for High Frequency Applications

 Other signal integrity software perform a parasitic element computation or use static finite element analysis to compute the static transmission line parameters. These techniques do not compute the actual distributed parameters as a function of frequency which is nonlinear in nature.

LINESCOPE’s proprietary algorithm computes the distributed transmission line parameters for every frequency content of the excitation signal. As a result, LINESCOPE computes high frequency phenomena such as  inductive and resistive skin effect with extreme accuracy, providing you with the most accurate lossy line solution. This is a unique and powerful feature of LINESCOPE which makes it ideal for high frequency applications  even at extremely high frequencies (several Giga Hertz and above).

 Lossy Transmission Line Network Simulation

 LINESCOPE will provide the user with a library of the most widely used transmission line configurations, such as: Balanced and Unbalanced Microstrip or Stripline configurations with circular or rectangular cross section, Coax cables, Vias, Wave Guides, etc. You can create your own subset of these libraries. Each library type can be conformed to your design specification at the lowest level. User needs only to input media and line parameters such as dielectric constant and line geometry dimensions. These transmission lines can be interconnected in any tree-like fashion to create the network under test. Various types of lines can be interconnected regardless of the configuration. User will be able to hange any design parameter of any transmission line segment independently and perform a new simulation until a perfect design is obtained. All the transmission line segments in the network are analyzed and solved as a lossy line taking into account the high frequency phenomena such as skin effect, group delays and dispersion, multiple reflections and attenuation .

 LINESCOPE’s  Output Response Types

 LINESCOPE will provide the user with the following response types:

1.    Output Voltage and Current Response waveforms at any node in the network are displayed. You can observe any signal degradation (Dispersion, Reflections, Attenuation, Delay, etc.) as you would using an oscilloscope. However LINESCOPE does not have the band width limitations of an oscilloscope.

2.    Frequency Response at any node in the network can be viewed graphically, displaying the frequency response and band width of your design at your node of interest.

3.    Outputs of various nodes can be displayed in one grid enabling you to compare the signals and detect any   clock skews and time delays between various nodes of interest quite easily.

4.    Impedance values of any selected transmission line as a function of frequency are provided. Both the real and imaginary components of line impedance are provided for a range of frequencies.

5.    Frequency spectrum of the input waveform is provided showing you the bandwidth and the spectrum envelope of the periodic input voltage waveform you are applying.

  Accuracy and Speed

 LINESCOPE  uses a proprietary Lossy Transmission Line Network Simulation method, creating an extremely fast and accurate solution to even the most complex networks. User does not have to perform any  electromagnetic field analysis or similar interim steps when you use LINESCOPE. LINESCOPE performs a complete analysis of the network and provides you with the crucial  time  and frequency domain responses of your network in one step in a matter of seconds.

 LINESCOPE is User Friendly

 LINESCOPE will be fully menu driven for ease of use. LINESCOPE user need not learn any SPICE-like circuit description language to define the network under test. LINESCOPE also has an extensive help facility describing the various aspects of simulation with LINESCOPE. User needs only to enter line geometry, select line configuration, enter transmission line media parameters such as dielectric constant and define an input waveform. LINESCOPE will provide a one step solution to all your signal integrity problems. Any complex interconnection network can be constructed usually in a matter of seconds just by a few clicks of  the mouse. LINESCOPE’s advanced graphical user interface  makes it extremely simple to use.

 LINESCOPE’s Graphical User Interface

 LINESCOPE is equipped with a powerful graphical user interface. Various aspects of LINESCOPE such as Menus, Networks, Transmission lines and Waveforms are all shown in full VGA color for ease of use. LINESCOPE can also print various items of interest directly from the screen into the supported Color and Black & White printers, thereby allowing the user to obtain a hard copy of various items of interest such as network configuration screens and output response waveforms at various points of the network.

 Expert Technical Personnel

 LINESCOPE is supported by expert technical staff at Advanced Scientific Applications Inc., specialized in the field of High Speed Signal Integrity and Electrical Performance Simulation.


























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