Symmetricom 5401 User Manual
PN 8500-0150, Rev. A, May 2005
23
Operating Manual
Operation
The srr.rrrr is a number from -99.9999 to +99.9999 microseconds per second. The number is
frequency change from DAC = 00000 to 65535 of the unit. This number is used in the
discipline algorithm to help compensate for oscillators with different frequency
frequency change from DAC = 00000 to 65535 of the unit. This number is used in the
discipline algorithm to help compensate for oscillators with different frequency
Response Format:
Design Verify On/Off
Command Format:
Description:
Determines whether filtered rate or filter offset is returned in a status request. When x = 0, the
extra data is not included. When x = 1, the extra data is included.
extra data is not included. When x = 1, the extra data is included.
The response to the status command is changed to the following:
Frr.rrrrrr - Filtered rate in microseconds; rr.rrrrrr is the an average frequency rate error
calculated internally by the unit. This is one of the values used by the program to determine
the dynamic gain.
calculated internally by the unit. This is one of the values used by the program to determine
the dynamic gain.
Oyyyyyy.yyy - Filtered offset in microseconds; yyyyyy.yyy is the an average time error
calculated internally by the unit. This is one of the values used by the program to determine
the dynamic gain.
calculated internally by the unit. This is one of the values used by the program to determine
the dynamic gain.
Response Format:
Note: It is assumed that the DAC output and oscillator control are linear. If not, then the
oscillator control range should be extrapolated from a subset of the control curve that is
near zero frequency error.
oscillator control range should be extrapolated from a subset of the control curve that is
near zero frequency error.