Appendix A: Specifications

A-4 CSA8000B & TDS8000B User Manual

Table A- 3: System - Trigger (cont.)
Description Characteristics
External direct trigger
capabilities and
conditions
Direct edge triggering on signal applied to dedicated front panel
connector with Holdoff, Level Adjust, Auto/Normal, High Frequency
On/Off, and Enhanced Triggering On/Off controls.
External direct trigger specifications apply only under the condition that
no other trigger signal is applied to respective connectors.
Short term optimized mode and locked to internal 10 MHz reference
specifications only apply under the condition that there is no external
10 MHz reference applied to the front panel connector.
External direct trigger
input characteristics1
50 Ωinput resistance, DC coupled only
External direct trigger
input range
±1.5 V (DC + peak AC) maximum input voltage
External direct trigger
maximum operating
trigger signal2
1Vpp
External direct trigger
level range
Adjustable between ±1.0 V
nExternal direct
trigger sensitivity3
100 mV, DC-3 GHz
External direct
trigger sensitivity
50 mV typical, DC-4 GHz
External direct trigger
level resolution
1mV
nExternal direct
trigger level accuracy
50 mV + 0.10 x level
nExternal direct
trigger delay jitter,
short term optimized
mode maximum
1.2 ps RMS + 10 ppm of horizontal position, or better
External direct trigger
delay jitter, short term
optimized mode (typi-
cal)
800 fs RMS + 5 ppm of horizontal position, typical
nExternal direct
delay jitter, locked to
internal 10 MHz refer-
ence mode maximum
2.5 ps RMS + 0.04 ppm of horizontal position, or better
External direct delay
jitter, locked to inter-
nal 10 MHz reference
mode (typical)
1.6 ps RMS + 0.01 ppm of horizontal position, typical
External direct trigger
minimum pulse width
167 ps, typical