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Tektronix 454A User Manual

Tektronix 454A
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O
p
er at i ng
I nst
r
uct i ons- 454zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA
‘
/
R
454A
T
h
e
VA
R
I A
BLE
V
O
L
TS/ DI
V
co
n
t r ol
p
r ovi
d
es
var i abl e
Two
si gnal s
w
h
i c
h
ar e
t i me- r el at e
d
can
be
d
i spl ayed
i n
( uncal i br at e
d
)
ver t i cal
d
ef l ect i on
bet ween
t
h
e
cal i br at e
d
t
h
e
c
h
o
pp
ed
mo
d
e
s
h
owi ng
t r ue
t i me
r el at i ons
h
i
p
.
set t i ngs
of
t
h
e
V
O
L
TS/ DI
V
swi t c
h
.
T
h
e
V
A
R
I A
BLE
H
owever ,
i f
t
h
e
si gnal s
ar e
not
t i me- r el at e
d
,
t
h
e
C
h
a
nn
el
2
cont r ol
ext en
d
s
t
h
e
maxi mum
ver t i cal
d
ef l ect i on
f act or
of
di s
p
l ay
wi l l
ap
p
ear
unst abl e
.
t
h
e
454
‘
t o at
l east
12
. 5
vol t s/ di vi si on
( 5
vol t s
posi t i on)
.
Two
si ngl e- s
h
ot ,
t r ansi ent ,
or
r andom
si g
n
al s
w
h
i c
h
Pr obe
P
ower
Connect or s
occur
wi t
h
i n
t
h
e
t i me
i nt er val
d
et er mi ne
d
by
t
h
e
T
he
t wo
PR
O
BE
P
O
WER
connect or s
on
t
h
e f r ont p
a
n
el
¤™œ•
/ DI
V
swi t c
h
( 10
t i mes
swee
p
r at e)
can be
com
p
ar ed
of
t
h
i s
i
n
st r ument
p
r ovi
d e o p
er at i ng
power
f or
act i ve
p
r obe
usi ng
t
h
e
C
H
O
P
mo
d e
.
To
t r i gger
t
h
e
sweep
cor r ect l y,
t
he
syst ems
suc h
as
t
h
e
Te
k
t r o
n
i x
¡
6045
F
i el
d
E
f f ect
Channel
1
si gnal
must
pr eced
e t
h
e
C
h
annel
2
si gnal
.
Si nce
Tr a
n
si st or
P
r o
b
e
.
I t i s
not
r ecomme
nd
ed
t
h
at
t
h
i s
t he
si gnal s
s
h
ow
t r ue
t i me
r el at i ons
h
i
p
,
t i me
d
i f f er ence
connect or
b
e
use
d
as
±
p
ower
sour ce
f or
a
pp
l i cat i ons
ot
h
er
measur ement s
can
be
made
.
t
h
an
t
h
e
compat i bl e
p
r obes
.
H
owever ,
i f
used
f or
ot
h
er
a
pp
l i cat i ons,
l i mi t
t
h
e
maxi mum
cur r ent
f r om
bot
h
co
n
nect or s
t o
50
mi l l i amp
er es
f r om
t
h
e +12- vol t
t er mi nal
C
h
annel
1
Out
p
ut
and Cascad ed
O
p
er at i on
an
d
100
mi l l i amp
er es
f r om
t
h
e
- 12- vol t
t er mi nal
.
M
ai nt ai n
I f
±
l ower
def l ect i on
f act or
t
h
an
p
r ovi
d ed
by
t
h
e
±
const ant
l oa
d
on
t
h
e
su
pp
l i es
t o
avoi
d
ad
d
i ng
t r ansi ent s
t o
V
O
L
TS/ DI
V
swi t c
h
es
i s
desi r ed,
C
h
an
n
el
1
can
be
used
as
±
t
h
e
syst em
.
wi deba
n
d
p
r eam
p
l i f i er
f or
C
h
a
n
nel
2
.
Appl y
t
h
e
i n
p
ut
si gnal
t o
t
he
I
NPU
T C
H
1
connect or
.
Con
n
ect
±
50- o
h
m
BN
C
cabl e
( 18- i
n
c
h
cabl e
f or
maxi mum
casca
d
e
d
f r e
q
uency
Dual - Tr ace
Oper at i on
r es
p onse)
bet ween
t
h
e
C
H
1
O
U
T
co
n
nect or
on
t
h
e
si de
Al t er nat e
M
ode
.
T
h
e
A
L
T
posi t i on
of
t
h
e
M
OD
E
swi t c
h
p
anel
and
t
h
e
I
NPU
T C
H
2
connect or
.
Set
t
h
e
M
OD
E
p
r o
d uces ±
d
i s
p
l ay
w
h
i c
h
al t er nat es
bet ween
C
h
annel
1
and
s
w
i t c
h
t o
C
H
2
an
d
t
h
e
T
R
I GG
ER
swi t c
h
t o
N
O
RM
.
W
i t
h
2 wi t
h
eac
h
swee
p of
t
h
e
C
R
T
.
Al t
h
oug
h
t
h
e
A
L
T
mode
b
ot
h
V
O
L
TS/ DI
V
swi t c
h
es
set
t o –
m
V,
t
h
e d
ef l ect i on
can
be
used
at
al l
sweep
r at es
t
h
e
C
H
O
P
mode
p
r ovi
d
es
±
f act or
i s
l ess
t
h
an
400 ¼
V
/ di vi si on
.
mor e
sat i sf act or y
d
i s
p
l ay
at
swee
p
r at es
bel ow
about
20
mi cr osecon
d
s/
d
i vi si on
.
At
t
h
ese
sl ower
swee
p
r at es, al t er -
To
p
r ovi
d
e
cal i
b
r at e
d
400 ¼
V
/ di vi si on
def l ect i on
f act or ,
nat e
mo
d e swi t c
h
i ng
becomes
vi sual l y
per ce p
t i bl e
.
connect
t
h
e
Cal i br at or
si gnal
t o
t
h
e
I
NPU
T C
H
1
connect or
.
Set
t
h
e
C
H
1
VO
L
TS/ DI
V
swi t c
h
t o
1
an d
t
h
e
P
r op
er
i nt er nal
t r i gger i ng
i n
t
h
e
A
L
T
mo
d e can
b
e
C
H
2
V
O
L
TS/ DI
V
swi t c
h
t o
2
m
V
.
A
dj
ust
t
h
e
C
H
2
obt ai ne
d
i
n
ei t
h
er
t
h
e
N
O
RM
or
C
H
1
O
NL
Y
p
osi t i ons
of
VA
R
I A
BLE
co
n
t r ol
t o p r od
uce
±
d
i s
p
l ay
exact l y
f i ve
t
h
e
T
RI GG
ER
swi t c
h
.
Wh
en
i n
t
h
e
N
O
RM
p
osi t i on,
t
h
e
d
i vi si ons
i n
am
p
l i t u
d
e
.
T
h
e
casca
d ed def l ect i on
f act or
i s
swee
p
i s
t r i gger e
d
f r om
t
h
e
si gnal
on
eac h
ch
annel
.
T
h
i s
d
et er mi ne
d
by
di vi di ng
t
h
e
C
H
1
VO
L
TS/ DI
V
swi t c
h
p
r ovi
d
es
±
st a
b
l e
d
i s
p
l ay
of
t wo
u
n
r el at e
d
si gnal s,
but
d
oes
set t i ng
b y
5
( C
H
2
V
O
L
TS/ DI
V
swi t c
h
and
C
H
2
not
i n
d
i cat e
t
h
e
t i me
r el at i ons
h
i
p
bet ween
t
h
e
si gnal s
.
I n
V
A
R
I A
BLE
cont r ol
r emai n
as
set
above)
.
F
or
exam
p
l e,
t
h
e
C
H
1
O
NL
Y
p
osi t i on,
t
h
e
t wo
si gnal s
ar e di s
p l ayed
wi t
h
t
h
e
C
H
1
VO
L
TS/ DI
V
swi t c
h
set
t o 2
m
V
,
t
h
e
s
h
owi ng
t r ue
t i me
r el at i ons
h
i
p
.
I f t
h
e
si gnal s
ar e
not
t i me
cal i br at e
d
d
ef l ect i on
f act or
wi l l
be
400
¼
V
/ di vi si on
;
C
H
1
r el at ed,
t
h
e
C
h
annel
2
wavef or m
wi l l
be
unst abl e
i n t
he
C
H
V
O
L
TS/ DI
V
swi t c
h
set
t o 5
m
V
,
1
mi l l i vol t / di vi si on,
et c
.
1
O
NL
Y
p
osi t i on
.
T
h
e
f ol l owi ng
o
p
er at i ng
consi
d
er at i ons
and
basi c
C
h
oppe
d
M
o
d e
.
T
he
C
H
O
P
posi t i on
of
t
he
M
OD
E
a
pp
l i cat i ons
may
suggest ot
h
er
uses
f or
t
h
i s
f eat ur e
.
swi t c
h
p
r o
d
uces
±
di s
p
l ay
w
h
i c
h
i s
el ect r oni cal l y
swi t c
h
e
d
bet wee
n c h
annel s
.
I n
gener al ,
t
h
e
C
H
O
P
mo
d
e p
r ovi des
t
h
e
best
d
i s
p
l ay
at
swee
p
r at es
sl ower
t
h
an
about
20
1
.
I f
AC
cou
p
l i ng
i s
d
esi r e
d
,
set
t
he
C
h
annel
1
I n
p ut
mi cr osecon
d
s/
d
i vi si o
n or
w
h
enever
d
ual - t r ace,
si ngl e- s
h
ot
Cou
p
l i ng
swi t c h t o
AC
and
l eave
t
h
e
C
h
annel
2
I n
p
ut
ph
enome
n a
ar e
t o b e
d
i s
p
l aye
d
.
At
f ast er
swee
p
r at es
t
h
e
Coupl i ng
swi t c h
set
t o
DC
.
Wh
en
b
ot
h
I n
p ut
Co
u
p
l i ng
c
h
o
pp
ed swi t c
h
i ng
b
ecomes
a
p
p ar ent an d
may
i
n
t er f er e
swi t c hes
ar e set
t o
DC,
DC
si gnal
cou
p
l i ng
i s
p
r ovi
d ed
.
wi t
h
t
h
e d
i s
p
l ay
.
P
r o
p
er
i nt er nal
t r i gger i ng
f or
t
h
e
C
H
O
P
mo
d e
i s
2
.
K
ee p
t
h
e
C
H
1
an
d
CH
2
P
OSI TI O
N
cont r ol
set
near
p
r ovi
d ed
onl y
w
h
e
n
t
he
T
R
I GG
ER
swi t c
h
i s
set
t o
C
H
1
mi dr ange
.
I f t
h
e
i
n
p
ut si gnal
h
as
±
DC
l evel
w
h
i c
h
O
NL
Y
.
I f
t
h
e
N
O
RM
p
osi t i on
i s
used,
t
h
e
swee
p
ci r cui t s
ar e
necessi t at es
one
of
t
h
e
P
OSI TI O
N
co
n
t r ol s
b
ei ng
t ur ne
d
t r i gger ed
f r om
t
h
e
bet ween- c
h
annel swi t c
h
i ng
si gnal
an d
away
f r om mi
d
r ange,
cor r ect o
p
er at i o
n
can
be
o
b
t ai ne
d
by
bot
h
wavef or ms
wi l l
be
unst abl e
.
E
xt er nal
t r i gger i ng
f r om
±
k
ee
p
i
n
g
t
h
e
C
H
2
P
OSI TI O
N
cont r ol
near
mi dr ange
a
n
d
si gnal
w
h
i c
h
i s
t i me- r el at e
d t o
ei t
h
er si gnal
p
r ovi
d
es
t
h
e
u
si ng
t
h
e
C
H
1
P
OSI TI O
N
cont r ol t o p
osi t i on
t
h
e
t r ace
same
r esul t
as
C
H
1
O
NL
Y
t r i gger i ng
.
near
t
h
e
desi r e
d
l ocat i on
.
T
h
en,
use
t
h
e
C
H
2
P
OSI TI O
N
2-
1
9

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Tektronix 454A Specifications

General IconGeneral
BrandTektronix
Model454A
CategoryTest Equipment
LanguageEnglish

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