Soft dB SPM PLL User Guide - Manual (Page 12)

SPM - PLL User’s Manual 12
4.5 Set-Points
These controls adjust the set points for the phase and the resonator amplitude. Note that the phase set
point is always the reference phase. So, the set-point adjustment for the phase is done through the
phase reference control (see the Operation Set-up controls). This way, the phase controller always
works centered around zero.
4.6 PI Controls and Switches
The sign and the gain of the Proportional and Integral factors can be adjusted with these controls for
both controllers. The OFF/ON buttons engage or deactivate each controller.
The Auto buttons can be used to determine the PI gains and LP filter set-up for both controllers. For the
phase controller, the following dialog box allows specifying the desired bandwidth: