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Ansoft Designer / Ansys Designer 在线帮助文档：

Nexxim Simulator >
Nexxim Component Models >
Probes >
   Eye Scope       

Eye Scope

 

Eye Scope Netlist Format

An eye scope is inserted in a schematic to tell transient analysis to generate an eye diagram for the signal at that location. If in addition the transient option Tran.skipresult=1 is set, only the data necessary for the requested eye are stored, saving on the time needed to generate the report.

Warning

If no eye scope is present when Tran.skipresult=1 is set, the transient results file will be empty with no error or warning message.

The netlist syntax for the Eye Scope is:

AEYESCOPExxxx n1 [n2] COMPONENT=EYE_SCOPE
+ UI=val
+ DELAY=val
+ NO_UI_BINS=val
+ NO_V_BINS=val
+ APPROX_VMIN=val
+ APPROX_VMAX=val

n1 is the node connected to the single-ended scope. n2 is the second node on a differential scope. The entry COMPONENT=EYE_SCOPE is required.

 


Eye Scope Parameters

Parameter

Description

Unit

Default

UI

Period to repeat

Second

1e-9

DELAY

Delay to start of recording

Second

1e-9

NO_UI_BINS

Time resolution

None

100

NO_V_BINS

Voltage resolution

None

100

APPROX_VMIN

Approximate minimum voltage

Volt

0.0

APPROX_VMAX

Approximate maximum voltage

Volt

1.0

 

Eye Scope Netlist Example

AEYESCOPEE4 Port1 0 COMPONENT=eye_scope

+ UI=2.3e-9 DELAY=0 APPROX_VMAX=2.0



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