Tektronix FG 504 User manual

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INSTRUCTION M A NU A L
Te
k
tronix,
Inc
.
P .O . Box 500
B
ea
υ erton,
Oregon

97077

Serial N um ber
CO M M ITTED TO E XCE LLE NC E
PL EAS E C H E C K F O R C H A N G E I N F O RM ATIO N
AT THE R E A R O F T H IS MA NU A L *
070-2655-00

F
i
r
st Pr i n ting N OV 1979
P ro
d uct Gro u p 75

R
evised MAY
1982

Co p y r ig h t ®
1979
Te k tr o n ix, Inc . All r ig h ts rese r ve d .
Co n te n ts of t h is pub licatio n m ay n ot b e r epro du ce d in any
fo rm wit hou t t
he
w r itte
n
pe
rm
issio
n
of Te
k t r
o
n ix,
Inc .
Products of Te k
tr
on
ix,
Inc .
and its s ub si d ia r ies
are
cove r ed
by U
.S . a nd foreign p aten ts and/or pe nd i ng p ate n ts .
T EKTR O N
IX,
ΤΕΚ , SCO PE-M O
B I LE, and
iste r ed tra de
m
a
rk
s of Te
k t r
on
ix, Inc .
a r e r eg-
Pr i n
te d
in
U .S .A
. Specification and pr ice c h an ge pr ivileges
a r e r eserved .
Co py r ig h t
©
1979 T EK TRON IX I NC . Τουτ dr oits r βse r v 6 s .
L e co n te nu de ce ma nu el no pout έ t r e r ep r odu it so u s qu el qu e fo r -
me qu e ce soit sans Ι 'acco rd de Te k tro n ix Inc .
Τουτ les pr odu its TEK T R O N IX τοητ br evet έs U S et E tr ange r et
les logotypes TEK T R O N IX, ΤΕΚSCO PE MO B I LE,
T&
τοητ
d έρο s βα .
I mpr i m! αυχ LISA . T EK
TRON
IX se
r
β serve le dr oit de mo d ifie
r
ca r act έ r isti qu es et pr ix cla n s le ca dr e dedέ velo ppe m e n ts tec
hn
o-
logi qu es .
Co p yrig h t © 1979 dur ch Te k t r on ix, Inc .
Alle R ec h te vo ι be-
h alte n . De r I nh
alt d iese
r
Pub li k atio n d art o hn e Ge neh mig ung
νοη Te k t r on ix, Inc . n ic h t weite ι gege b en we rd en .
P
ro
duk
te
νοη
Tektronix, Inc . und sei n e n Toc h te r gesellsch afte n
si nd dur ch U S- und Au sla nd s p aten te und /o d e r sc h we bende
P aten te a b ge d
ec
k t .
TE KTR O N IX, ΤΕΚ , SCO PE-M
O
B I
LE a nd

si nd gesc ho tzte
W a
r
enzeich e
n
νοη Te k tr o
n
ix, Inc .
Ge
druck t in
U .S .A
.
S p ezifi
k
atio n s- und Pr eis A nde run ge n
b lei b en vo rb eh alte n .
©1979
X κΓα t U h If τ ~ Η Q TI ό I' f λε V,
T
EK
T RON IX, ΤΕΚ ,
SCO
PE-MO B I LE,
ιάτη
Η
Α
=~
τ
~i~s
;Έ~C ι ~ ι ~#
τ ~~
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N 9 I
τ i
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τ 1
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REV ΜΑΥ 1981
W A RN I N G
THE F O LL O W I N GS ERV IC
E 1 N
ST RU CTIO
N S
A RE F
O
RU S E BY QU A L I F I ED PER SO NNEL
ONL Y . T O A V OID PER SO NA L I NJUR Y, DO
NOT PERF O RM ANY S
ERV ICI NG OT HER
THANTHAT
CO N TAI NE D IN OPER ATI NG
I N ST RU CTIO N S UNLE SS YO U
ARE
QU A L I F I ED TO DO SO .
TA BLE O F CO
N T EN
TS
F G 504
(S N Β 040000
& UP)
P age
P age
L IST O F I LLU ST R ATIO N S ...... ..........
ii Section 3
T HE
O
RY O F O PER ATIO N ........ 3-1
L
IST O F TA BLE S ...... ........ ......... iii
Section 4 CA L I BR ATIO N PR OC E D URE ...... 4-1
Sectio n 1 S PE CI F ICATIO
N
. . .............
1-1
P erforma nce C heck ...... ..... 4-3
Ad j ustme n t P roce d ure ..... .... 4-8
Sectio n 2 O PER ATI NG I N ST RU CTIO N S ...... 2-1
Sectio n 5 M AI N T EN ANC E . ............ ...
5-1
En glis h V e r sio n
Section
6 O P TIO N S ........... ...... ... 6-1
Fr e n ch V e r sio n
Sectio n 7 REPL AC E A BLE
ELE
CT
R ICA LP A R TS 7-1
Germa n V e r sion
Sectio n 8
DIAG RA M
S
AND I LLU ST R ATIO N S . . 8-1
J a p a n ese V e r sio n
Sectio n 9 REPL AC E A BLE ME C H AN ICA L P A R TS 9-1

F
G 504 (S NΒ 040000 & UP)
L IST O F I LLU
ST
R ATIO
N S
Α
REV ΜΑΥ
1981
F ig .
No . P age
F ig .
No . P age
F G 504 Function Ge n erator
........ . . viii 2-18
Supp ressed Carrier O p eratio n . . ...... 2-11
2-1 F G 504 I n stallation and R emoval . ... . . 2-1
2-19 L ow F re q ue ncy H ol d O p
eratio n ....... 2-11
2-2 FR O N TP anel
Controls and Co nn ectors . 2-3
2-20 Delayed Operation . ....... ........
2-11
2-3 Swept F re qu ency R anges ......
.....
2-6
2-21 Tone B urst Testing ....... ........ . 2-12
2-4 Swept F reque n cy R a n ge wit h 10 Vapp lied
2-22 L inear Swee p of F
ilters ............. 2-12
to
V
C
F 1 Ν
connecto
r
........ ...... . 2-4
2-23 L ogarit h mic Swee p of F
ilters . ........ 2-12
2-5 Trigger Sign al Am p lit ud e R equireme n ts
2-24 P ulse S h api ng Ca p abilities .......... 2-24
an d Triggeri
n
gP oi n ts ...... ....... . 2-8
4-1 Amplitu d
e
F
latness C heck ........... 4-11
2-6 Ph ase R elations h
ips betwee n Out pu t
5-1 Semiconductor B asi ng
............. 5-4
W aveforms a nd T R
IG
O
U
T W
aveform . . 2-8 5-2
R ear Inte r face Connector Assig n ments . . 5-5
2-7 B asic Functions . Square, Tria n
gle, and
Sine W aveforms . . ............ .... 2-8
T he followi ng ill u stratio
nsare located in t he
2-8 R
am p s and P ulses ......... ....... 2-8 d
iagram pull-out section .
2-9 V a r iable R ise a nd F all Times
.........
2-9
2-10 L i near Sweep . ........... ........ 2-9
8-1 Semicon d uctor B asing
2-11 L ogarit h mic Swee p ..... . . ......... 2-9 8-2
A dju stme n t Locations
2-12 N arrow B and
Sweep . . ............. 2-9 8-3
Α 3 L oo pB oa r d Com p onent L ocatio ns
2-13 Gated Ope r ation . . ............... 2-10 8-4
Α 1 M ain Board
Com p onent L ocations
(FR ON T)
2-14 Triggered
O p eratio n ............... 2-10 8-5
Α 1 M ai n B oard Compo nen t L ocations
2-15 Ph ase Co n trol O p eration ............ 2-10
(B AC K)
2-16 Ph ase Loc k ed L oop Operation ........ 2-10
8-6 Α 2 Fu nction B oar d Com pon e n t Locations
2-17 Amplitu de M od u lation .............. 2-11
8-7 Α 4 F
loati ng Interface B oa r d Com po nen t
L ocations

L IST ® F TA BLE S
Ta b le No
F G 504 (S N Β 040000 & UP)
P age
1-1
E
lect
r ical C h aracteristics
........ ..... . .
1-1
1-2 E nvironmental C ha r acte r istics .......
. . . .
1-7
1-3 Ph ysical C h aracte r istics ......... .....
.
1-7
4-1 Test Eq ui p me n t R equ ired ............ . . 4-1
5-1
R elative Suscepti b ility to Static Disc h arge
Damage . ..... .............. . . .... . . 5-3
5-2 M ai n tena nce Ai ds .................. . . 5-9

In T h is Manual
As M ar k ed onE qui p ment
In T
h
is Manual
P ower Source
O PER ATO R S SA FE TY S UMM A R Y
As M ar k ed on Eq ui p me n t
DA N
G
ER - H ig h voltage .
ΑΤΤΕΝΤΙΟΝ - refer to manual
.
T ERM S
SY MBO LS
Ο

P rotective grou n d (eart
h ) terminal .
F G 504 (S N Β 040000 & UP)
T h
e ge
n eral safety information in t h is p art of t h e summary is for bot h operati ng a n d servicing
p ersonnel . Specific warni n gs and cautions
will
be
foun d t h roug h out t h e manual w h ere t h ey
apply, but may not a p pear in t h is summary .
CA U
TIO N statements i d entify conditions or practices t h at could result in d amage to t he
e q ui p ment or ot h er property .
W A RN I N G statements i d entify co n d itio n s or p ractices t h at coul d result i n personal in j
ury
or
loss of
life
.
CA U TIO N in d icates αp erso n al i nj ury h azard not immediately accessible as one reads
t he
mar k ing, or αhazard to
property includi ng t h e eq u ipment itself .
DA N G ER indicates α personal i nj ury h azard immediately accessible as o n e rea d s t h e mar k
ing .
T h is symbol in d icates w h ere a pp licable cautionary or ot h er information is to be
found .
T h
is p roduct is inte
n
ded to operatefrom
α power source t h at will not apply more t han 250volts
rms between t
h
e supply con
d
uctors or
betwee n eit h er su pp ly conductor an d groun d . Α
p rotective ground connection by way of t h e groun d i n g conductor in t h e power cord is
essential for safe operation .

F G 504 (S NΒ 040000 & UP)
Vi
Grounding t he P roduct
T h is product is grounded t
h
roug
h t h e gro u nding con d uctor of t h e p ower cord . To
avoid
electrical s
h
oc k , plug
t he p ower cor d i n to α properly wire d rece ptacle
before connecti ng tot he
product
in p ut or out p ut terminals . Α p rotective groun d
connection by way of t h e groun d ing
conductor in t h ep ower cord
is esse n tial for safe o p eration .
Da n ger Arising F rom
L oss of Grou n d
Up on
loss of t he p rotective-ground con n ectio
n ,
all
accessible conductive p arts (inclu d ing
kn obs and co n trols t h at may a p pear to
be insulating) can render an electric sh oc
k .
U se t h eP roper P ower Cord
U se only
t he p ower cor d and conn ector specified
for your product .
U se only α p ower cord
t h at is in good con d ition .
For detailed
information on power cor d s and connectors, see
t he power module manual .
Refer cord and connector
ch anges to q ualifie d service p ersonnel
.
U se t he P roper F use
To
avoid fire hazard, use only t h e fuse of correct
ty p e, voltage rating an d current rati ng as
sp ecifie d in t he parts list
for your p roduct .
R efer fuse rep laceme
n
t to q
ualified service p ersonnel .
Do Not O p erate i n E x p losive Atmosp h eres
Το ανο ~d
explosio n , do not operate t h is p roduct ί η anex
p losive atmosp h ere unless it h as been
sp ecifically certifie dfor suc h o p eration
.
Do N ot Operate W it
h out Cove r s
To avoid p ersonal i nj ury, d o n ot operate
t h
is p
roduct wit h out covers or p anels
installe d . Do not
apply p ower to t
he plug-in via αplug-in extender .
REV
ΑA PR 1980

Do N ot Service Alone
Do
not perform internal service or a d j ustment of t h is p ro d uct
un less anot h er person ca p able of
renderi n g first aid an d
resuscitation is p rese n t .
U se Care Wh en
Servicing W it h P ower On
Dangerous voltages exist at
several p oints in t h is p ro d uct . To avoi d perso n al in j ury, do
not
touc h exposed
connections a n d com p onents w h ile p ower is on .
Disconnect p ower before removing
protective panels, sol d ering, or replacing com
p onents .
P ower Source
S ERV
ICI N
G SA
FE TY S UMM A R Y
F O R Q U
A L I F I E D S ERV IC E PER SO
NNEL
ONLY
R efer also
to t h e preceding Operators Safety Summary .
T h is p ro d uct is inte n d e
d
to
o p eratefrom αp ower sourcet h at will not apply moret
h
an
250volts
rms
between t h e supply conductors or between eit h er su pp
ly
con
d uctor an d groun d . Α
protective ground connection by way of t
he groun d ing con d uctor in t h e power cor d is
essen tial for safe operation
.
F G 504 (S N Β 040000
& UP)

The FG 504 Function Generator .

Introduction
T he F G
504 F unctio n Generator
provides
low
distortio n
si n e, s q uare, tria n gle, ram p
,
a
nd pulsewaveformsovert h e
freque n cies from 0 .001 Hz
to 40 MHz i n te nd ecades
. Α
user-definable
custom fre q ue ncy range is
also available .
T
h
e
out p ut am p litu d e is 10 m
V
to
30 V pea k -to-pea k into
anopen
circuit and 5
mV to 15 V pea k -to- peak into α 50
Ω
loa d . T h e output im pedance
is 50 Ω . The F G 504
may be
swept betwee
n t he STA R T an d STO
P FRE
Q
dial settings
wit hα li near or logarit
h mic sweep . T h e outp ut may be
ph ase loc
ked
,
gate d , or triggered for si n
gle cycle outpu t .
T
he outp ut waveform may be sh ifte
d ±80° from t he
triggeri ng waveform . T he
symmetry of t he out p ut wave-
form may also b e
varie d . F or t he slower fre q
uencies, t he
output may b e h eld
at any level by p us h ing t h efron
t pan el
bu tto n
labeled H O L D .
Α voltage-controlled
fre q uency (V C F) i n put
controls
t h e output frequency
from an external voltage
source . T he
output
fre que n cy can be swe p
t above or below t he
selecte d fre qu en cy, to α maximum of
1000 :1, depen d i n g
on t he p olarity an d am p
litude of t h eV C F i np ut and t
he
selecte d output
fre q ue ncy . P rovisio n is also
ma de for
amplit ud
e modulati ng t he si n ewave output
from an exter-
nal source .
SPECIFICATION
Table 1-1
Performance Co
nd itions
ELE CT R ICA L C H A R ACT
ER
ISTICS
Sectio n 1- F G 504
(S N 8040000& UP)
Th e
variety of swe p t an d modulate d
signals available
from t h e F G 504 ma ke it
esp ecially useful for suc
h
applications as
testi ng am p lifier or servo-system
re-
spo
n
se,
distortio n , and sta b ility .
It is useful for fm
gen eratio n , as α beat fre q uency
oscillato r , as αgated
triggere d or p h ase-loc k ed
logic i n terface, or as αsource
for vario us ram p or p ulse
waveforms . It is also useful as
α
source for
amplitude modulate d sig n als
for various pur-
poses .
S PE CI F ICATIO
N
Th e followi ng
electrical ch aracteristics are valid
if t he
F G 504 is
calibrated at an ambient temperature
b etween
+20°C and +30°C a nd is
o p erate d at an ambie n t
temperature between
0°C an d +50°C, unless ot
herwise
note d . Force
d air circulation is require d at tem p
eratures
above +40°C . Allow
αon e- h our warm-up
period before
p erforming verificatio n tests .
C ha r
acteristic
P erformance R equi r eme n t
Sup p lemental I n fo r mation
F reque ncy
R ange
Si ne-wave, sq
uare-wave, .001 Hz to 40 MHz
calibrated
and
tria n gle i
n10 overlappi n g ste ps
R am p s, pulses, or waveforms
.001 Hz to n ominally
4 MHz .
waveforms re q
uiring use of
varia b le SY
MME TRY co n trol
Duty Cycle
_<7 ο/ο to >93 ο / ο below 1 MH
z
<20°/ ο to >80 ο/ο above
1 MH z
.5 Χ 10' p
osition of
=400
kH z maximum . Α 5 μF
MUL
TI PL I ER switc h ( U ser
capacitor p rovides α full-scale
selecte d timing cap acitor)
frequency of -=400 Hz . T he
factory-i
n
stalle d
capacitor gives
α20 Hz to
20 kH z ra nge for t he
.5 Χ 10' p osition of
t he MUL TI PL
I
ER
switc h .

Specification-FG 504
(SN
Β 040000 & UP)
Table 1-1 (cont)
C
haracteristic P erformance R equirement Supplemental Information
F
requency (cont)
R esolution
1 part in 10" of full-scale
setting usingthe FREQUENCY
VERNIER
control, as measured with α
frequency counter .
Stability Applies to calibrated portion of the
FREQUENCY
Hz dial only .
Time <-0 .05 ο/ο for 10 minutes
The instrument must b e at α
<-0 .1 ο/ο for
1 h our constant ambient temperature
-<0 .5 ο
/ο for 24 hours b etween 0°C and +50°C and
c hecked after α 1-hour
warmup
.
Temperature
See Dial Accuracy
Dial Calibration
1 to 40 Hz ( Χ MULTIPLIER
setting) calibrated ; 0 .1 to 1 Hz
( Χ MULTIPLIER setting) uncalibrated .
Dial Accuracy
FREQUENCY H z (START) W ithin 3 ο/ ο of full
scale from M easurements made at an ambient
d ial
0 .001 H z to 4 MHz . W ithin 6 ο/ ο of
temperature
between
+15o CC and +35'C
full scale from 4 MHz to 40
MHz . after 1 h our warmup .
STOP FREQuency d ial
W ithin 5 ο/ ο of the difference STOP FREQuency d ial is
b etween the start and stop uncalibrated on
the 10 6
frequencies plus the FREQUENCY
MULTIPLIER range .
Hz (START) dial
error .
M aximum F requency R anges for
M aximum to
Dial, Sweep
Frequency, and MULTIPLIER Minimum F req-
Voltage Controlled Setting ency R atios
F requency (VCF) M odes
106
500 :1
10
5 -10 1 ->1000 :1
10 1 , 1, 10 -1 , 10 - 1 ->100 :1
10
-s
40 :1
Internal Sweep L inear or L ogarithmic .
Accuracy
L imited by Start and Stop
F requency Specifications ; u se
external frequency
counter if
greater accuracy is required .
Sweep Duration 100
s to 0 .1 ms in six decades
(selected by SWEEP D
URATION
switch)
.
V ARiable control overlaps decades .
Stop F requency to
W ithin 2 ο/ο from 100 s to 1 ms
Swept Stop sweep duration .
F requency E rror
W ithin
10 ο/ο
from 1 ms
to
0 .1 ms
swee p duration .
LINear SWEEP 0 V to +10 V . Output impedance 1 k Ω .

W it
h in 5 ο / ο from 100 s to
1 ms,
W it h in 10 ο/ο from 1
ms to 0 .1 ms .
At least 30 V ρ - ρ i nto an open
circuit, at
least 15 V i n to 50 Ω .
W it h in ±0 .5 d B .
W it h in ±2 dB from 40
kH z
to 40 MH
z .
Internal
Sweep (co n t)
OU
T PU T Am p litude
Accuracy
S
WEEP TR IGger I NPU
T
Input se
n sitivity
L evel
M aximum In p ut
V oltage-co n trolled
F re q uency In p ut
(V C F)
N omi n al Se n sitivity
( H z/volt)
M aximum F re q uency
M inimum F requency
Slew
R ate
I n put Impedance
OU T PU T Signal
Amplitude
F latness
Sine-wave
0 .001 Hz to
40 kH z
40
kH z to 40 MHz
Triangle
0 .001 Hz to 40 kH
z
40 kH z to 40
MH z .
S qu are-wave
0 .001 H z to 20 MH z
20 MH z to 40 MH
z
Si ne-wave,
Triangle,
an d S q
uare-wave Am p litu d e
M atc h
Table 1-1 (con t)
Specification-117G
504 (S N Β 040000
& UP)
=4 Χ MUL TI PL I ER
setti n g per
volt . Α p
ositive-goi n g voltage
i ncreases
fre q uency .
M aximum
fre q uency d ivide d by
V
C
F
range
(see M aximum F requency
R anges
for Dial, Swee p F re q
uency, and
V oltage Controlled
F requency (V C F)
M odes) .
Typically wit
h in ±0 .5 d B to
40 MH
z . R eference at 10 kH z .
R eference at 10 kH
z .
R eference at 10 kH z .

Sp ecificatio n - F G 504 (S N Β 040000 & UP)
Table 1-1 (co n t)
REV N O V 1981
C
h aracteristic P
erforma n ce R eq u ireme n t S upp leme n tal I n fo r mation
Out p ut ATT ENUATO R
M axim u m O pen -
Atte nu
ator
circuit Out p
ut
Ste p V oltage (p-p)
0 dB 30 V
-10 dB 9 .5 V
-20 d B 3 V
-30 d B 950 m V
-40 dΒ 300 m V
-50 dB 95 m V
Accuracy
W it h in ±0 .5 d B / d eca d e .
VA R ia b
le Co n trol P rovi d es
up to
-20 d B
add itio n al atte nu ation to re duce
t he mi nimu m output signal am p litu d e
to 10 m V .
O FF SET R an ge
Into O pen Circuit ±7 .5 V M axim u m sig n al pl us offset
I n
to 50
Ω ±3 .75 V
pea k outp ut amplit ude of
±20
V i n
to an ope
n circuit an d
±11 .25 V i n to 50 Ω . Offset
d efeatable by fro n t- pa n el control .
Output W aveforms
W it hout
U se of SY
MME TRY
Si n e, Tria n gle, a nd Square
(variable) control
W it h SY MME T RY (variable) R am p s a nd Pu lses . Duty cycle ra n ge
Control is <_7 ο/ο to >93 ο/ο for all variable
symmetry
waveforms below 1 MH z ;
limite d to -20% to
~80% for
tria n gle and si n e-waveforms above
1
MHz .
Actuatio n of SY M ME TRY control
d ivi d es out p ut fre q uency b y
ap p roximately 10 .
Tria ngle
Symmetry Ty p ically wit h i n 2 ο/ο from
0 .001 Hz to 10 Hz .
10 Hz to 400 kH z W it h in 1 ο/ο .
400 kH z to 40 MHz W it h in 5 ο/ο . On calibrated p ortion of
FRE Q UEN CY Hz d ial .
L i n earity
M easured from t he 20 ο/ο point to t he
80 ο /ο p
oi
n t
of
t he
wavefo r m . Ty p ically
wit h in 2 ο/ο from 0 .001 Hz to 10 Hz .
10
Hz to
400 kH z
W it h i n 1 ο/ο .
400 kH z to 4 MHz W it h in 2 ο/ο .
4 MH
z to 40 MHz W it h i n 10 ο /ο .