:DIFF:CRECovery:SOPLl:OJTF:DFACtor

Command Syntax

:DIFFN:CRECovery:SOPLl:OJTF:DFACtor <damping_factor>
            

Where N identifies a specific differential waveform in the form "<connection1-8>_<ch1|ch3|ch5|ch7>". With connection 1, the connection number part (that is, "1_") is optional, and you can simply use the channel number "<ch1|ch3|ch5|ch7>". When two channels are paired to create a differential waveform and a common-mode waveform, the odd-numbered channel is used when specifying the waveform. For example, connection 5 differential waveform 3 (from the pairing of channels 3 and 4) is DIFF5_3.

<damping_factor> is a double.

Query Syntax

:DIFFN:CRECovery:SOPLl:OJTF:DFACtor?

Description

When specifying the PLL's loop bandwidth in terms of the OJTF 3 dB BW, you also need to specify the damping factor of the JTF.

< 1	underdamped
> 1	overdamped
= 1.0	critically damped
= 0.707	Often considered ideal or optimal because of its fast settling time (optimally flat) and Butterworth type response.

Example Command Sequence

:DIFF1:CRECovery:MODE SOPLl
:DIFF1:CRECovery:PLL:MODE OJTF
:DIFF1:CRECovery:SOPLl:OJTF:LBDivisor 1.670E+3
:DIFF1:CRECovery:SOPLl:OJTF:DFACtor 0.707