Specifications-455/A2/B2
TABLE 1-5 (continued)
Electrical (B2 Horizontal Module)
Characteristics
Performance Requirement
Supplemental Information
TRIGGERING (cont.)
External Trigger Input
Maximum Input
Voltage
250 V DC + peak ac or 250 V p-p ac (1
kHz or less).
Input Resistance
1 MJ2 within 10%.
Input Capacitance
20 pF within 30%.
Level Control Range
EXT
At least + and —2 V, 4 V p-p.
EXT + 10
At least + and —20 V, 40 V p-p.
Trigger View
Deflection Factor
EXT
« 50 mV/div.
±20%, ac or dc trigger coupling only.
EXT -1- 10 500 mV/div.
±20%, ac or dc trigger coupling only.
Risetime
Delay Difference
< 7 .5 ns
< 14 ns.
With 5 div signal 5 ns risetime or less
from a 50 generator centered verti
cally with equal cable length from
signal source to vertical channel and
external trigger input, terminated in
50 51 at each input.
Centering of Trig
gering Point
Within 1.0 div of center screen.
HORIZONTAL DEFLECTION
SYSTEM
Calibrated Sweep Range
A Sweep
0.5 s/div to 0.05 jus/div in 22 steps in a
1-2-5 sequence. X I0 MAG extends
maximum sweep rate to 5 ns/div.
B Sweep
50 ms/div to 0.05/xs/div in 19 steps in a
1-2-5 sequence. X10 MAG extends maxi
mum sweep rate to 5 ns/div.
Calibrated Sweep Accuracy
Unmagnified
XI
Magnified (1)
X10
Accuracy specification applies over
the full 10 divisions.
+20°C to +30°C
±2%
+3%
(1) Exclude the first and last 40 ns of
the sweep on 5 ns, 10 ns and 20 ns
sweep rates.
— 15°C to +55°C
±3%
±4%
(2) ±5%. Excludes first and last dis
played divisions when checking 5
ns/div and 10 ns/div (X10 MAG on).
Over any two division
portion of Full 10
Divisions (1) (2)
1-8
REV. A, OCT 1975
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