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
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