:FUNCtion:PARameters:DFEQualizer:SOUTput

DFE Parameters Commands

Command Syntax

:FUNCtionN:PARameters:DFEQualizer:SOUTput {ON | OFF | 1 | 0}

Where N identifies one of up to 64 possible operators {1:64} that can be defined as part of a math function. The operators are numbered in the order that they were originally added to the function.

Query Syntax

:FUNCtionN:PARameters:DFEQualizer:SOUTput?

Query Response

{1 | 0}

Description

After a Decision Feedback Equalizer operator (DFE) (:FUNCtion:FOPerator) is applied, the eye drawn is attenuated. To amplify the eye back to its original size (so you can directly compare the eye at the receiver to the eye at the transmitter) a gain factor needs to be applied. The :FUNCtion:PARameters:DFEQualizer:SOUTput (Scale Output) option specifies that a constant be applied to both the unequalized input signal and the corrected decision threshold value. A value of 1 means there is no gain applied to the DFE eye diagram (like multiplying by 1).

OFF
No gain is applied (gain value of 1).
ON
Specifies that a calculated gain be applied to both the unequalized input signal and the corrected decision threshold value.

Example Command Sequence

:FUNCtion1:FOPerator DFEQualizer
:FUNCtion1:DISPlay ON
:FUNCtion1:COLor TCOLor9
:FUNCtion1:PARameters:DFEQualizer:TAPS:AUTO ON;*OPC?
:FUNCtion1:PARameters:DFEQualizer:TAPS:COUNt 5;*OPC?
:FUNCtion1:PARameters:DFEQualizer:TAPS:ULIMit 4.5E-1;*OPC?
:FUNCtion1:PARameters:DFEQualizer:TAPS:LLIMit -4.5E-1;*OPC?
:FUNCtion1:PARameters:DFEQualizer:CLKDelay 4.0E-12
:FUNCtion1:PARameters:DFEQualizer:BANDwidth:AUTO OFF
:FUNCtion1:PARameters:DFEQualizer:BANDwidth 1.0E+10
:FUNCtion1:PARameters:DFEQualizer:TAPS:RECalculate;*OPC?
:FUNCtion1:PARameters:DFEQualizer:DTHReshold OFF
:FUNCtion1:PARameters:DFEQualizer:SOUTput ON