Tektronix FG 502 User manual

Te k tronix, Inc .
Ρ . Ο . Box 500
B eaverto n , Orego n 97077

Serial Number
070-1706-01
7 tIctro nb c
CO MM ITTE D TO E XC ELLEN C E
PLE AS E
CHE CK F O R CH AN G
E INF O RM ATIO N
AT THE
RE A R OF T H IS M A NU A L
F
G
502
FUNCTION
G
ENER ATO R
I N ST RU
CTIO N M A NU A L
F i r st P rinting OCT
1973
R evised
ΜΑΥ 1981

TABLE OF CONTENTS
Page
LIST OF ILLUSTRATIONS

...... ... .........................
..
. . .... . ...... .ii
Section
1 Specification ... . . ..................... ................. . 1-1
Section 2 Operating Instructions ................... . . . .... ..
........ . 2-1
WARNING
THE FOLLOWING SERVICE INSTRUCTIONS AREFOR USE
BYQUALIFIED
PERSONNEL ONLY . T O AVOID PERSONAL
INJURY,
DO
NOT PERFORM
ANY SERVICING OTHER THANTHAT CONTAINED
IN OPERATING
INSTRUCTIONSUNLESS YOUARE QUALIFIED TO DO SO .
Section 3 Theory of Operation . . . . . . . ................................
3-1
Section 4 Calibration Procedure . . . .... ............................... 41
Performance Check . . .... ............................... 41
Adjustment Procedure ... ................................ 45
Section s
Maintenance
............. . . . ............................
5-1
Section 6 Options . ................. . . ............................ 6-1
Section 7 Replaceable Electrical Parts ...... ...........................
7-1
Section
8 Diagrams and Illustrations ..... . . . ........................... 8-1
Section 9 Replaceable Mechanical Parts . . . . ............................
9-1

L IST
O F
ILLUSTRATIONS
Fig
.
No .
P age
F G502 FUNCTION
GENERATOR
.... . . . . . . ......... .........
.."..... .
vi
2-1 F G
502 I n stallatio
n an d removal .
. ............ ....... ..................
2-1
2-2
Controls a nd Con
n ecto r s ........ ...........
.
... ... .................
2-2
2-3 Imped an ce
matc h ing n etwor k t
h at p rovi d es minimum
atte nu atio n ............... 2-4
2-4 O utp u
t waveforms availa
b le from t h e F G 502
.... ...... .... . . .............
2-5
2-5 G
r ap h s h owi n g r a n ge
of V C F fre que n cies .......
. . . .... .......
. . . . . . . ....
2-5
2-6
Swept fre q ue n cy
ra n ge wit h 10 V
sig n als app lie d to V C
F 1 Νco nn ecto r ...........
2-6
2-7 Ph ase
relatio n s h ips b etwee
n OU T PU T waveforms an
d TR IG O UT
waveform ....... 2-7
2-8 Analyzi
ng circuit o r system
res po n se ...........
. . . .... .......
. . ....... .
2-7
2-9 To
n e bu rst gen eratio n
o r ste pped f r e quency
m u ltiplicatio n ...
................
2 - 8
5-1
Semico ndu
cto r d evice lea d co n
figuratio n fo u n d in t h e TM
500 family ............
5-5

Terms In T
h
is Manual
CA U TIO N stateme n ts iden
tify cond itio n sor practices t h at
co
u l d res u lt i n da m age to t h e e q ui p me n t or ot h er pr op erty .
W A RN I N G stateme n ts i den tify con d itio ns o r pr actices
t h at co u l d r esult in pe r so n al i njur y or loss of life .
Te
r ms As M ark ed on E q u ipme n t
CA U TIO N i nd icates α pe r so n al i nju ry hazard n ot im-
me d iately accessible as o ne rea d s t he mar k i n g, o r α
h azar d to p rop erty i n cl ud i ng t h e eq ui
p
me
n t itself .
DA N
G
ER i nd icates α perso n al i nj ury h aza r d imme d iately
accessi b le as one rea d s t he ma rk i ng .
Sym b ols AsM ar k edon E qu ipment
P
ower
Source
O PER
ATO R S SA FE TY S UMM A R Y
DA N G ER - H ig h voltage .
Pr otective g r o und (eart h ) termi
n
al
.
ATTENTION
- r efer to m anu al .
T h is p ro d uct is i
n
te n ded to
operate f r om α p owe r so urce
t
h at will n ot
apply
mo r e t h a n 250 volts r ms betwee nth e
sup p ly co ndu ctors or b etween eit h er su pp ly co ndu ctor
a nd grou nd . Α pr otective gro und conn ectio
n
byway
of t he
gro u n d i n g co ndu cto r i nth e power co
rd is essen tial for
safe operatio
n .
Grounding t he P ro d uct
T h is p ro duct is gro und e d t h roug h t he gro und i ng cond uc-
tor of t he p ower cor d . To avoi d electrical sh oc k , plug t h e
p ower cord i n to αp roperly wi r ed r eceptacle before
co nn ecti n g to t he p ro d uct i np ut or o u t p ut
termi n als . Α
F
G
502
pr otective groundconn ection by way
of t he gro und i n g
co nductor i n t he p ower cor
d is esse n tial for safe ope r a-
tion .
Da n ger
Arisi ng F rom L oss of Gro u nd
Up o
n loss of t he protective-gro und co nn ectio n , all
accessible
co nd uctive p arts (i n cl u di ng k no b s a nd con-
trols t h at may a pp ear to b e ins u lati n g) can re nd e r an
electric sh oc k .
U se t he P rope r P owe r Cord
U se only the power co r d a n d conn ector s p ecified
for
your
product .
Use only
α power cor d t h at is i n good con d itio n .
U se t he Pr o p er
F use
To avoi d fire
h aza rd , use only t he f use of cor r ect ty p e,
voltage rati ng a nd c u rre n t rati n g as sp ecified i n t he p arts
list fo r your p ro du ct .
R efer fuse replaceme
n t
to qu
alified service pe r sonn el .
Do N ot O p
erate in E xplosive Atmosp he r es
To avoi d explosio n , do
n
ot op
erate t h is p r o du ct i n an
explosive
at m os ph ere u nless it has b ee n s p ecifically
certifie d fo r suc hop eratio n .
Do N ot O pe r ate Plug-in Un it W it h out Covers
To
avoid perso n al i nju ry, do n ot operate t h is pro duct
wit hout cove r s or p an els installe d . Do n ot apply p owe
r
to
t he p l u g-i n via αp l u g-i n exte nd er .

Do N ot Se r vice Alone
SE
RV
IC
E SA FE TY S UMM
A RY
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 he preceding
O p e r ators Safety Summary .
Do n ot p erform inte
rn al service or a dj ustme n t of t h is
p r oduct unless an
ot h er perso n ca p able of re nd eri n g fi r st
ai d a nd res u scitatio n is p rese n t .
U se Ca
r e Wh en Servicing W it h P ower On
Da
n ge r ous voltages exist at several poi n ts in t
h
is p r o
du
ct
.
To avoi dp erso n al i nj u r y, d o n ot to u c
h ex p osed conn ec-
t i ons a nd com po
n
en ts
w h ile p owe r is on .
F G 502
Disco nn ect p ower befo
r
e
r emovi ng pr otective pa n els,
sol d eri n g, o
r re p laci ng
co
mp o nen ts .
P
ower So ur ce
T h is pro du ct is
i n
te
nd ed
to o
p e r ate fr om α powe r sou rce
t h at will
n
ot
a pp ly mo r e t h an 250 volts rms between t
he
supp
ly co ndu ctors or betwee n eit he r s upp
ly
co
ndu ctor
a nd gro u n d . Α pr otective g r o und conn
ect i o n by ωαγ ο f t he
g r o und i n g co n du cto r in t
hep owe r co r d is esse n tial fo r
safe operatio n .

,\\ Μ
ά
'
τίΡσσ ΈR
F G 502 FUN
CTIO N G ENER ATO R
1706-01
REV Α ΜΑΥ 1980

T he F G 502 Fun ct i on Generator is d
esig n ed
to
operate
i nα TM 500 ser i es p
owe r m o du le . It ge n e r ates low
d istortio
n si n
e,
sq ua r e, t r i an gle, positive an d n egative
pu lse, a nd ramp wavefo rm s from 0 .1 Hz to 11 MHz . A
s qu are wave t r igge r is availa b le at t he
fr
o n t panel .
V
ar
i
able
DC offset is also pr ovi ded .
Α voltage-co n t r olle d f r e qu e n cy ( V CF) i np ut co n trols
t heo u tput fr e qu en cy from an exte rn al voltage so ur ce .
T h e
output fre qu en cy can be swept above o r b elow
t he
selecte d f r e qu e n cy to α maxim u m of 1000 :1 de pe nd
i n g
on
t he pola r ity a nd a mp l i t ud e of t
h
e
V
C
F inp ut a nd t he
selecte d out pu t f re qu en cy .
An exte r nal gate i npu t allows t h e ge n erator to o pe
rate
for t h e d uratio n of an exte rn
ally
a p pl
i
ed
gati n g sig n al . T h is
mo d ep
rovides eit he r α single cycle output, o r α t r ai n of
p reselecte d wavefo r ms, de pe nd ing on t he gati n g sig n al
"N%
widt h an d t h e ge n e r ator fre qu en cy setting .
T he var iety of swe p t a nd mo du late d
signals availa b le
fr om t he F G 502 m a k e It es p ecially u seful fo r s uch
ap p licatio n s as testi n g servo-system o r amplifier
res p o n se, d istortio n , a nd stability . It can
b e u se d fo r FM
ge n e r atio
n ,
f
r
e qu
e n cy m u lt i plicatio n , or as α va r ia b le beat-
fre qu ency oscillato r . It can also b e u se d to ge n erate
REV C ΜΑΥ 1980
SPECIFICATION
INTRODUCTION
Ta b le 1-1
Sectio n 1- F G 502
r epetitio n r ates or to neb u rsts . T he square
wave t r igger
output can b e use d as
α so ur ce fo r TT L log i c, o r to
sy
n
c
hr o n ize an exte rn al device su c h as an osc i lloscope or
co un te r .
T h e elect r i cal characteristics
in t h is specificat i o n a r e
vali
d
wit h t he followi ng cond itio n s :
1 . T he i n st r ume n t m u st h ave bee n a dju ste d at an a mb ie n t
tem p e r at ur e betwee n +20 0 C and +30 0 C .
2 . T he inst rum en t
m u st
be
ίη α ποη -co nd e n si ngen vi r o n -
m
e n t
w
h ose li
m its a r e d esc r i be d under En viro n me n tal .
3 . Allow twe n ty mi n utes warm-up time for ope r atio n to
specifie d accuracy ; sixty minu tes after exposure to or
storage In h ig h hum i d ity (co nd e n si n g) en viro
n
me
n t .
Any cond itio n s t h at a r e un i q ue to α p articular
ch a r acteristic are ex pr essly state d as p art of t
h
at
ch aracteristic .
T he elect r ical a nd e nv i r o n me n tal perfor m ance li mits
toget h er wit h t h ei rr elate d vali d atio n proce dur es co
mpr ise
α com p lete stateme n t of t
h
e elect
r i cal a nd e n viro nm en tal
performa n ce of
α calibrate d Instrument .
ELE CT R ICA L C HA R ACT
ER
ISTICS
C h a r acteristics Performance
Re q ui r eme n ts S upp le m en tal I n formatio n
Fr eq ue n cy R a n ge 0 .1
Ητ t ο 11 MHz .
F re qu en cy R esolution
1 part i n 10' of
full scale setti ng
usi
ng FRE Q UEN CY VERN I ER co n trol .
Fr e qu e n cy Sta b ility
< 0 .1% fo r 1 h ou r , < 0 .5% for 24
h
ou rs .
Dial must b e on
calibrate d p ortio na nd
ambie n t te m perat u re must be
25°
C
t5°
C .
Pu lse a nd R a mp F re qu en cy 1/10 t r ia ngle fre qu e n cy .
Dial Ra n ge - 1 to 11
cali br ated . 0 .1 to 1
υη cα 1ί br ate d .

S p ecification- F G 502
Ta b le
1-1 (cont)
REV Β
ΜΑΥ 1980
Ch a r acteristics
P erforma n ce R e q ui r eme n ts S up pleme n
tal Info rm atio n
)ial Acc ur acy < 3% ο of
full scale f r
om
0 .1
Hz
to
1 MHz .
<
5% ο of full scale from 1 MH z
to 10 MHz . 11 MH z setti n g n ot less t han
11 MHz .
3utput
Am p lit ud e > 10 V Ρ - Ρop en circ u it . > 5 VΡ
- Ρ
i n to α 50
Ω load
,
excl ud i n g offset .
R efe r e n ce d at 10 kH z .
k m p lit ud eF lat n ess
Si n
ewave W it h in t 1 .5 dB, r efe r e nce at 10 kH
z .
S q uare a nd tr iangle to si n e- W it h i n
f
3 dB
.
wave am p lit u de
J ffset
Ran ge > + a nd -5 V, open circ u it .
+ a nd -2 .5 V into α 50
Ω loa d .
Si n ewave Distortio n < 0 .5%
ο from 10
Hz
to 50 kH z . H a r mo n ics Dial must be on cali b rate
d p ortion, an d
>-30 d B d ow n at all ot h er
am b ie n t tem pe r at u re must be25*C±5*C .
fre qu en cies .
Tria n gle Sym m etry W it h i n 1 ο / οf r o m 0 .1
H
z to
1 .1
MHz .
W it h i n Dial mu st be on cali br ate d portio n . Ambie n t
3% ο from
1 .1 MHz to 11 MH z u sing 10 6 tem p erat ur e m ust b e 25°C ±5* C .
MUL TI PL I ER setti n g .
Tria n gle
L inearity Within
1 .0%f r om0 .1 H zto110kHz, within
3 ο/ο from 100 kH z to 1 .1 MHz u si n g 10 5
Μ UL TI PL I ER setti n g,wit h in5%from1 ΜΝ
to 11 MHz u sing 10 6 MUL TI PL I ER
setti n g .
S qu arewave and Pu lse O u t pu t
R isetime < 20 n s .
Aberratio ns <
3ο/ ο Ρ - Ρ at full am p litude i n to 50 Ω
load .
P ulse and
R
amp
As p ect R atio
95/5 .
V oltage Co n trolle dF re quency
I npu
t (V
C
F)
R ange
Α 10 V signal sh ifts fre qu e ncy > 1000 :1
w he r e fre q., > 11 Χ MUL TI PL I ER
setti ng a nd fre q~ ; . < 0 .011
Χ
MUL TI PL
I
ER
setting .
Slew Rate
< 0 .5
V
/ μ
s .
E xter n al Gate Inpu t
0 V to
>
+2 V, n ot to excee d +15 V .
B aseline of outp u t wavefor m du ring
off
p erio d wit h i n 500 m
V meas u re d from 0V .
Usable on
t he 10 6 MUL TI PL I ER
setti n g
only
for si n e, t r ia ngle or
s qu a r e waveform o u tput .
Input Im ped an ce
1 ΚΩ .
T r igger O utpu t > 5V o p en
circ u it,
>
2 .5 V into 50 Π
load .
P ower Co nsu m p tio n
Ι
15 W .

Ta
b le 1-2
ENV I R O NMEN TA L C H AR ACT ER ISTICS
Specificatio n - F G 502
REV Β ΜΑΥ 1980
Ta b le 1-3
PH YSICA L C HA R ACT ER ISTICS
C
ha r acte r istics
I n fo r matio n
Tem pe r at u re
O p erating
0°C to 50°C .
Sto r age
-40° C to +75° C .
Altit ud e
O p erating
To 15,000 feet . M axim u m op erati n g
tempe r ature decrease d b y
1°C/100 feet from 5000 to 15,000 feet .
Storage To 50,000 feet .
V i br ation
O p erati n g a
n
d non-operating
W it h t h e i n st ru me n t co mp lete, vib
r ation fre qu e ncy swept from
10 to 55 to 10 Hz
at 1 mi nu te per swee p . V i br ate 15 mi nu tes i n
eac h of t he t hree ma j o
r axes at 0 .015 i n ch total d is p lace m e n t . H ol d
10 mi n utes
at
any
ma j or resonance ; or, if n o n e, at 55 Hz . Total
time,
75 mi nu tes .
S h oc k
O pe
r ating an d non-operating 30 g, 1/2 si n e, 11 m s dur atio n , 3 shock
s in eac hd i r ection alon g
3 m a j or axes, for α total of 18 sh oc
ks .
Transportatio n Qu
alifie d u nd er N ational Safe Tra n sit Committee Test Procedure 1A,
Catego r y ΙΙ .
C h aracte r istics
Dimen sio n s
Overall Size
(meas u re d at maximu m
p oints)
H eig h t 5 .0
i n (12 .7 cm)
W i d t h2
.6 i n (6 .6 cm)
L en gt h 12 .2 i n (31 cm)
N et W eig h t
(Instr u me n t only)
2
I
b s (0 .906
k g)

Ι
I n itial O p eratio n
O
PER ATI N G I N ST RU
CTIO N S
T urn t h e Power Module off b efo
r e i nse r ting t h e pl u g-
i n, ot h erwise, d a
m age may occ ur to t he p l u g-in
ci r cuit r y or co nn ecto r .
T h e F G 502 is cali br ate d a nd rea
d y fo r u se w hen
r eceive d . It is d esig n ed to op e
r ate i n any com p artme n t of
t
h
e TM
500 series p ower m o du le . R efe r to t h e p owe r
mo
du le i n str u ctio n ma nu al for line voltage r e q ui r e m en
ts
and p owe r mod u le o p eratio n . See F ig . 2-1 for
i n stallatio n
removal proce du r e . B e s ur e
t h at t h e F G 502 is f u lly
i n serted i n t h e powe r mod
u le . Pull t h e PWR switc h on t he
power mo d ule . C
heck t h at t h e g r een P OWER lig h t on t h e
F G 502 is on .
T he
Co
n trols a n d Co nn ectors F ig . 2-2 gives
α com
p lete d escri p tio n of t h e f r o n t pa n el co n trols a nd
conn ecto r s .
REV D ΜΑΥ
1980
Fig . 2-1 . F G 502 I n stallatio n a nd r e m oval .
F unctio
n s Available At R ea r Connector
Sectio n 2- F G 502
R efer to t h e rear conn ecto r assig n me n t illust r atio n i
n
t h e M ai n tena n ce Sectio n of t h is
m a nu al for pin
assig n me n ts .
Α slot betwee n p i n s 23 a nd 24 on t h e rear con n ector
i d entifies t he F G 502 as α mem b er of t
h
e
sig n al source
family . Α b arrie r may b e
i n serte d in t h e corres pond i n g
p ositio n of
t h
e p
owe r mo du le j ac k to p reve n t ot h er t h a n
signal
so
urce p lug-i n s f r om b ei n g use d in t h at co mp art-
ment . T h is protects t h e p l u g-i n if s p ecialize d co n nectio n s
a r e ma de to t h at com p artment . Co n s u lt t he Bu ildi n g Α
System sectio n of t h e p owe r m odule ma nu al fo r furt
her
i n formatio n .