Tektronix 410, Service Manual

Page: 46 / 275

Typical Characteristics
Specifications
1Ć20
Table 1-17: Typical Characteristics — Triggering System (Cont.)
Name Description
Frequency, Maximum for Events Delay
5
90 MHz
Width, Minimum Pulse and Rearm,
Events Delay
6
5 ns
Video Mode (Option 05 Equipped Instru-
ments Only) Line Rate Class: Four classes are provided as follows.
H
NTSC, which provides a default line rate compatible with the
NTSC standard (525/60)
H
PAL, which provides a default line rate compatible with the PAL
standard (625/50)
H
SECAM, which provides a default line rate compatible with the
SECAM standard (625/50)
H
Custom, which provides user selectable line rate ranges (see
“Custom Line Rate Ranges” below)
Custom Line Rate Ranges: 15 kHz–20 kHz, 20 kHz–25 kHz,
25 kHz–35 kHz, and 35 kHz–64 kHz
Holdoff: Automatically adjusts to 50 ms (nominal) for NTSC class;
to 140 ms (nominal) for PAL and SECAM
Triggerable on Field Selections: Odd, Even, or Both
Delayed Acquisition: Settable for delay by line number or runs after
time delay
5
The maximum frequency for a delaying events input.
6
The minimum pulse width and rearm width required for recognizing a delaying event.
Table 1-18: Typical Characteristics — Data Handling
Name Description
Time, Data-Retention, Nonvolatile
Memory
1,2
Internal batteries, installed at time of manufacture, have a life of
≥
5 years when operated and/or stored at an ambient temperature
from 0
_
C to 50
_
C. Retention time of the nonvolatile memories is
equal to the remaining life of the batteries.
1
The time that reference waveforms, stored setups, and calibration constants are retained when there is no power to the oscilloscope.
2
Data is maintained by lithium poly-carbon monofluoride.