Tektronix 422 User Manual

Specification—Type 422 AC-DC
Characteristic
Performance
Delay Line
Permits viewing of leading edge
of triggering signal (internal trig
gering only).
TRIGGERING
Trigger Source (select
ed by front-panel
TRIGGERING
Source switch)
Internal from both Channel 1
and 2.
Internal from Channel 1 only.
External from signal applied to
TRIG IN connector.
Trigger Coupling (select
ed by front-panel
TRIGGERING
Coupling switch)
AC (capacitive)coupled.
AC (capacitive) coupled with
attenuation of low-frequency
signals.
DC (direct) coupled.
Trigger Slope (select
ed by front-panel
SLOPE switch)
Sweep can be triggered from the
positive-going or negative-going
portion of trigger signal.
Trigger Level LEVEL control allows selection
of the triggering point on the
selected slope of the trigger
signal.
Trigger Mode (select
ed by front-panel
TRIGGERING Mode
switch)
AUTO Mode for triggered sweep
at point selected by LEVEL con
trol when adequate trigger signal
is applied (see Trigger Sensitiv
ity); sweep free runs at sweep
rate selected by TIME/DIV
switch when trigger signal is in
adequate or below 20 hertz.
NORM Mode for triggered sweep
at point selected by LEVEL con
trol when adequate trigger signal
is applied (see Trigger Sensitiv
ity); no trace when trigger signal
is inadequate.
Trigger Sensitivity
(AUTO and NORM
Mode)
Internal
AC 0.2 division of deflection mini
mum, 50 hertz to five mega
hertz; increasing to one division
at 15 megahertz.
AC LF REJ
0.2 division of deflection mini
mum, 50 kilohertz to five mega
hertz; increasing to one division
at 15 megahertz. Will not trigger
on two-division or less sine wave
at 120 hertz or less.
Characteristic Performance
DC
0.2 division of deflection mini
mum, DC to five megahertz; in
creasing to one division at 15
megahertz.
External
AC
125 millivolts minimum, 50
hertz to five megahertz; increas
ing to 0.6 volt at 15 megahertz.
AC LF REJ 125 millivolts minimum, 50 kilo
hertz to five megahertz; increas
ing to 0.6 volt at 15 megahertz.
Will not trigger on 1.25 volt or
less sine wave at 120 hertz or
less.
DC
125 millivolts minimum, DC to
five megahertz; increasing to 0.6
volt at 15 megahertz.
External Trigger Input
RC characteristics
100 kilohms ±3% paralleled by
33 picofarads ±5 pF.
Maximum Input volt
age
250 volts DC + peak AC.
LEVEL control range
At least +10 to —10 volts.
TIME BASE
Sweep Rate
Calibrated range
Unmagnified
0.5 second to 0.5 microsecond/
division in 19 steps. Steps in
1-2-5 sequence.
Magnified
50 milliseconds to 0.05 micro-
second/division in 19 steps.
Steps in 1-2-5 sequence.
Uncalibrated (vari
able) range
Continuously variable between
calibrated sweep rate settings.
Extends slowest uncalibrated
sweep rate to at least 1.25
seconds/division.
Accuracy
Unmagnified
Over center eight
divisions
Within 3% of indicated sweep
rate.
Over any two divi
sion portion with
in center eight
divisions
Within 4% of indicated sweep
rate.
Magnified
Over center eight
divisions
Within 5% of equivalent sweep
rate.
1-3

Tektronix 422 Specifications

General

Brand	Tektronix
Model	422
Category	Test Equipment
Language	English