Tektronix 5 Series MSO Printable Help

Measurement configuration menu, Clock Recovery panel.
Field or control Description
Clock Recovery Global sets whether the Clock Recovery settings defined in this panel apply to all
measurements with clock recovery settings that are set to global (the default setting).
Local sets the Clock Recovery parameters to apply to just this measurement.
Method PLL simulates the behavior of the specified hardware Phase Locked Loop clock recovery circuit
to derive the clock signal.
Constant Clock uses linear regression so that the recovered clock minimizes the mean
squared sum of the Time Interval Error (TIE) for that waveform.
Explicit Clock derives the reference clock from a specified channel other than the one upon
which the measurement is defined.
Standard Sets the standard to use for the PLL model. Information for a selected standard is listed under
the drop-down list.
Only available when Method = PLL.
Mode Mean chooses both the frequency and the phase to minimize the mean squared error. Available
when Method = Constant Clock.
Median chooses the phase so that the median error between the recovered and measured
edges is zero. Only available when Method = Constant Clock.
Fixed uses the specified frequency but chooses the phase so that the median error between
the recovered and measured edges is zero. Only available when Method = Constant Clock.
Select Explicit Clock-Edge method if you want to use the edges found in the selected clock
source (possibly multiplied up by an integral number). If the Clock Multiplier is set to 1 (the
default), only these edges will be used. If the Clock Multiplier is set to a number N other than 1,
linear interpolation will be used between each pair of actual edges to create N-1 additional
reference edges. The interpolated edge times, combined with the actual edges, give a total of N
reference edge times per actual edge. Only available when Method = Explicit Clock.
Select Explicit Clock-PLL as the clock recovery method if you want to feed the edges from the
selected clock source through a PLL rather than using them directly. The actual edges from the
clock source will be used to drive a software PLL model, and the edge times coming out of the
PLL will be used as the reference edges for the target measurement. If the Clock Multiplier is
set to a number N other than 1, the output of the PLL will have N edges per actual edge. Only
available when Method = Explicit Clock.
Menus and dialog boxes
MSO54, MSO56, MSO58, MSO58LP, MSO64 Help 169

Tektronix 5 Series MSO Specifications

General

Brand	Tektronix
Model	5 Series MSO
Category	Test Equipment
Language	English