86100D Internal Precision Timebase Specifications (Option PTB)
Instrument:
86100D
These specifications are for Option PTB, which is the 86100D internal precision timebase. These specifications refer to the signal input to the front-panel Precision Timebase Input connector.
If Freerun trigger mode is not used, a trigger input must also be supplied. This is in addition to the reference clock input to the front-panel Precision Timebase connector. The trigger input must be synchronous to the reference clock but may be a sub-rate of the clock based on the required frequency range for the trigger input.
Specifications describe warranted performance. Characteristics provide useful, nonwarranted information about the functions and performance of the instrument. Characteristics are printed in green italics.
| Item | Description | |
|---|---|---|
| Maximum Input Signal | 1.3 Vpp | |
| Input DC Offset Range | ± 200 mV | |
| Input Signal Type The internal precision timebase works with typical digital clock signals, such as a BERT output, as well as sine waves. If the rise time or fall time of the clock signal is less than 15% of the period of the clock (for example, less than 15 ps for a 10 GHz clock), reduce the edge speed by using an external low-pass filter or length of cable. For the lowest jitter, use a signal that is as close as possible to the maximum signal amplitude (1.3 Vpp) and minimize any sub-harmonics. | ||
| System Jitter (Option PTB when PTB is enabled) | Refer to Enhanced Trigger Specifications (Option ETR) | |
| Precision Timebase Input | ||
| Nominal Impedance | 50Ω | |
| Connector Type | 2.92 mm (male) | |