:SPRocess:DFEQualizer:TAPS:LLIMit

Instrument:
N1000A
N109x
Flex Apps:
FlexDCA
FlexRT
Meas. mode:
Scope
Eye
Jitter
Package License:
L-RND

To Install DFE Operator

Use this command:

:FUNCtion:FOPerator DFEQualizer

If secondary to Reference Rx operator:

:FUNCtion:SOP4 DFEQualizer

DFE Commands

Command Syntax

:SPRocessN:DFEQualizer:TAPS:LLIMit <count>

<count> is a double.

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

:SPRocessN:DFEQualizer:TAPS:LLIMit?

Description

Specifies the lower limit for the tap values for the Decision Feedback Equalizer operator (DFE). Existing tap values are adjusted to be within the limit. Changing an existing tap value beyond the lower limit will reset the lower limit.

 

For Reference Rx operator, what function do I send this command to?

If the DFE equalizer is a secondary function to the Reference Rx operator, address the :SPRocess:DFEQualizer:TAPS:LLIMit command to the Reference Rx function as identified in the following Reference Rx Setup dialog's operator diagram. In the following figure, this would be Function 2 and the command would be:

:SPRocess2:DFEQualizer:TAPS:LLIMit

The Decision Feedback Equalizer operator is provided with the N1010A-201 Advanced Waveform Analysis license.

Beginning with FlexDCA revision A.05.60, use of an *OPC? query to pause program execution while waiting for this command to execute.

Requires FlexDCA revision A.02.00 and above.

Example Command Sequence

:FUNCtion1:FOPerator DFEQualizer
:FUNCtion1:DISPlay ON
:FUNCtion1:COLor TCOLor9
:SPRocess1:DFEQualizer:TAPS:AUTo ON;*OPC?
:SPRocess1:DFEQualizer:TAPS:COUNt 5;*OPC?
:SPRocess1:DFEQualizer:TAPS:ULIMit 4.5E-1;*OPC?
:SPRocess1:DFEQualizer:TAPS:LLIMit -4.5E-1;*OPC?
:SPRocess1:DFEQualizer:CLKDelay 4.0E-12
:SPRocess1:DFEQualizer:BANDwidth:AUTo OFF
:SPRocess1:DFEQualizer:BANDwidth 1.0E+10
:SPRocess1:DFEQualizer:DTHReshold OFF