Tektronix TAS 455, Руководство по обслуживанию

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TAS 455 and TAS 465 Service Manual
1Ć17
Typical Characteristics
This subsection contains tables that list the various typical characteristics
that describe the TAS 455 and TAS 465 Analog Oscilloscopes.
Typical characteristics are described in terms of typical or average
performance. Typical characteristics are not warranted.
This subsection lists only typical characteristics. A list of warranted characĆ
teristics starts on page 1Ć9.
TableĂ1Ć18:ăTypical Characteristics Ċ Vertical Deflection System
Name Description
UpperĆFrequency Limit, 20 MHz BandĆ
width Limited
20ĂMHz.
Trace Shift Leakage The typical amount of trace shift while changing the input coupling
between GND and 1 M W DC is as follows:
Condition Typical Trace Shift
-10 _ C to +35 _ C <0.5 mV.
+35 _ C to +55 _ C <2 mV.
Variable Volts/Div Offset 0.5 division trace shift while changing the variable volts/div setting.
Chop Mode Clock Rate >500 kHz, <1 MHz.
Chop mode is allowed from 0.5 s to 10
m s sec/div settings.
Noise (measured tangentially) H 0.06 div at 10 mV/div (600 m V).
H 0.10 div at 5 mV/div (500 m V).
H 0.14 div at 2 mV/div (280 m V).
TableĂ1Ć19:ăTypical Characteristics Ċ Time Base System
Name Description
Time Base Linearity ±5%.
Sweep linearity applies over the center eight divisions. Excludes
the greater of either the first ! @ 4 division or 25 ns from the sweep
start of the magnified sweep and anything beyond the 100th magĆ
nified division.
Delay Jitter 1 part in 10,000 (20,000 for 1 ms and slower) + 2 ns, peakĆtoĆ
peak during a twoĆsecond time interval. Exclude the first 0.15 diviĆ
sions of the Main sweep.