:CRECovery:SOPLl:OJTF:DFACtor

CRECovery Global Commands

Command Syntax

:CRECovery:SOPLl:OJTF:DFACtor <damping_factor>

<damping_factor> is a double.

Query Syntax

: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

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