Tektronix 2465A Operator's Manual page 121

Performance Characteristics
Table 6-1 (cont)
2465A/2455A/2445A Electrical Characteristics
Characteristics
Performance Requirements
X10 MAG Accuracy Add ± 0.5% of time interval to unmagnified
Sweep and Ilt Cursors specifications. Exclude
the first 0.5 division after the sweep starts (the
first 0.5% of the full 100 division sweep).
500 ms or 200 ms/div Timing Add ±0.5% of interval to specifications for A
Accuracy (A Sweep only) SEC/DIV at 100 ms or faster.
SEC/DIV VAR Timing Accuracy Add 2% of time interval to sweep accuracy
specifications when VAR is out of detent.
Timing Accuracy (-15°C to + 15°C Add ±0.2% of time interval to alillt and delay
and +35°C to +55°C)
specifications. Add ± 0.5% of interval to sweep
accuracy specification.
Ilt Readout Resolution
2465A Greater of either 10 ps or 0.025% of full scale.
2455A, 2445A Greater of either 20 ps or 0.25% of full scale.
Ilt Range ± 10 times A-SEC/DIV setting with Cursors,
± 9.95 times A-SEC/DIV setting with Sweep
Delay.
Sweep Delay Range
o
to 9.95 times the A SEC/DIV setting, from
500 ms to 10 ns with 2465A, or 500 ms to
20 ns with the 2455A and 2445A. A-Sweep
triggering event is observable on B Sweep with
zero delay setting for A SEC/DIV settings 50
ILS
or faster.
Delay Jitter
Within 0.004% (one part or less in 25,000) of
the maximum available delay, plus 50 ps.
X10 MAG Registration Within 0.5 division from graticule center at 1 ms
SEC/DIV setting (X10 MAG on to X10 MAG
off).
Horizontal POSITION Range Start of 1 ms per division sweep can be
positioned from right of graticule center to at
least 10 divisions left of graticule center. Some
portion of 1 ms per division sweep is always
visible with X10 MAG off.
2465A/2455A/2445A Operators
6-11