Instruction manual

Chapter 2 Service
About the Agilent 53131A/132A Calibration Menu
Assembly-Level Service Guide 2-11
2
The Fine Time Interval Calibration requires a special calibrator signal source to
provide input—because it produces eight calibration terms, each tailored to a different
combination of input conditions. It requires the synthesizer driving the calibrator to
produce a very accurate 10 MHz waveform—because it calibrates the pulse width
configuration against the 50-nanosecond pulse width so provided. It minimizes
systematic error by calibrating the instrument in each of the eight configurations:
falling to falling edges, falling to rising edges, etc., and both SEPARATE and
COMMON routing.
Notes Pertaining to CAL: TI QUIK?
Advantage: Calibration signal is simple.
Disadvantage: One correction term for all slope and routing configurations.
Input signal: clean square wave, fast rise time, approximately 10 MHz, 1 volt
peak-to-peak, no dc offset (oscillating about 0.0 volts), driving 50Ω.
Timebase: Any external timebase you provide is ignored during calibration.
Procedure: From the front-panel calibration menu, one keypress invokes the
calibration.
Notes Pertaining to CAL: TI FINE?
Advantage: Calibration minimizes systematic error for any supported
combination of input slope and routing.
Disadvantage: Calibration signal is more complex. If you perform a calibration
that you feel is erroneous and do not feel you can perform the fine calibration,
perform the CAL: TI QUIK? calibration instead, or restore the calibration
factors that you saved prior to starting.
Equipment: Agilent 8130A Pulse Generator or equivalent.
Agilent 59992A J06 Time Interval Calibrator or equivalent.