Wavetek 1370 Installation instructions

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PRELIMINARY OPERATOR'S AND
MAINTENANCE MANUAL
Model 1370
12 MHz VXI
Sweep/Function Generator
Q 1991 Wavetek
This document contains information proprietary to
VJavetekand
is providedsolelyfor instrumentoperation
andmaintenance.The informationinthisdocument may
not
be duplicated in any manner without the prior ap-
proval
in writing from Wavetek.
WAVETEK SAN DIEGO,1NC.
9345
Balboa Ave.. San Diego, CA 92123
P. 0.Box 85265.
San Diego, CA 92138
Tel [phone] FAX [phone]
Manual Revialon:
A. 7/91
Manual PanNumber: 1006-00-0648
Instrument Pen Number: 1000-00-0640
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WARRANTY
Wavetek warrants that all products manufactured by Wavetek conform to published Wavetek
spectiica!ions andarefreefromdefectsinmaterialsandworkmanshipfor aperiodof one
(1) year from
:he
date ot deliverywhen used under normal conditionsandwithin the service conditions for which
:hey were furnished.
The obligation o: Wavetek arisingfrom aWarranty claimshall belimitedto repairing,or at itsoption,
replacingwithout charge, any productwhich inWavetek's sole opinion provesto bedefective within
the scope of the Warranty. In the event Wavetek is not able to modify, repair or replace non-
conforming defectivepartsor componentsto aconditionaswarrantiedwlthina reasonabletime after
receiptthereof, Buyers shall be creditedfor their value at the original purchase price.
Wavetek must benotifiedinwritingof thedefector nonconformltywlthintheWarranty period andthe
affectedproductreturnedtoWavetek'sfactory ortoanauthorizedservicecenterwithin
(30) daysatter
discovery of suchdefect or nonconformity.
For ~roductwarranties requiring returnto Wavetek, products must be returnedto a service facllity
designated by Wavetek. Buyer shall prepay shipping charges, taxes, duties and insurance for
products returned to Wavetek for warranty service. Except for products returned to Buyer from
another country, Wavetek shall pay for return of productsto Buyer.
Wavetek shall have no responsibility hereunder for any defect or damage caused by improper
storage,improperinstallation,unauthorized
modification, misuse,neglect,Inadequatemaintenance,
accidentor for any productwhich has beenrepairedor alteredbyanyoneother thanWavetek or its
authorized representative and not in accordancewith instructionsfurnished by Wavetek.
Exclusion of Other Warrantles
The Warranty describedabove IsBuyer's aole andexclueive remedy and noother warranty,
whether written or oral, Isexpressed or implted. Wavetak epedflcally dlaclarma the lmplled
warrantiesof
merchantabllltyandfltnessfor aparticularpurpose. Nostatement, representation,
agreement, or understanding, oral or written, made by an agent, distrlbutor, representative, or
employeeof Wavetek,which is notcontainedintheforegoingWarrantywlllbebindinguponWavetek,
unlessmadeinwritingandexecutedbyanauthorizedWavetek employee.Undernoclrcumstancea
shallWavetek beliableforanydlrect, indirect,special,
incidental, or consequential damagea,
expenses, Lossesordelays
(Including lossofprofits)baaedoncontract, tort, oranyotherlegal
theory.
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SAFETY FIRST
PFIOTECTYOURSELF. Follow these precautions:
Don'ttouchthe outputs ofthe instrumentor any exposedtest wiring carrying the
output signals. This instrumentcan generate hazardous voltages and currents.
Don'tbypasstheVXI chassis'powercord's ground leadwith two-wireextension
cords or plug adaptors.
Don'tdisconnectthegreenandyeilowsafety-earth-groundwlrethat connectsthe
ground lugof the VXI cha sis power receptacleto the chassis ground terminal
(markedwith
@ or A 1.
Don'tholdyour eyesextremelyclosetoan rf outputfor a longtime. Thenormally
nonhazardous low-power
rf energy generated by the instrument could possibly
cause eye injury.
Don't energize the VXI chassis untildirectedto by the installation instructions.
Don't repairthe instrument unlessyou are a qualifledelectronics technician and
know how to work with hazardousvoltages.
Pay attention to the WARNING statements. They point out situations that can
cause injury or death.
Pay attention to the CAUTION statements. They point out situations that can
cause equipment damage.
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CONTENTS
SECTION 1 GENERAL
.................................................................................
: . 1 THE MODEL 1370 1-1
.....................................................................................
: . 2 SPEClFJCATlONS 1 . 1
.............................................................................................
' . 2 7 Functions 1 . 1
............................................................................
.
: 2.2 Ooeraling Modes 1-1
................................................ .
........................
2.3 FrequencyRange .. 1 1
1
. 2.4
Outputs ............................................................................................ 1-1
.................................
.........................................
.
1 2.5 FrequencySweep .. 1-2
......##.................... ............................................................... .
1 2.6 Inputs .. 1-2
..........................................................................................
1.2.7 Precision 1-2
................................................................................
1.2.8 Waveform Quality 1-3
1.3 GENERAL
.............................................................................................. 1-3
.........................................................................
1 . 3.1 SCPl Pr0g;amming 1-3
1.3.2 VXIlnkrface
........................................................................................ 1-3
.................................................................................
i . 3.3 Environmental 1-3
1.3.4 Size
................................................................................................. 1-3
........................................................
..................................
1 . 3.5 Power .. 1-3
1 . 3.6 Reliability ............................................................................................. 1-3
........................................................................................
1 . 3.7 Normal Use 1-3
1.3.8 Safety
......................... ... ............................................................ 1-3
.............................. ............
1.3.9 EMC .. ..................................... 1-3
SECTION
2 PREPARATION
...........................
2.1 RECEIVING INSPECTiON ..... ,,, ............. 2-1
2.1.1 Unpacking Instructions
.......................................................... 2- 1
....................... ............. .........
2 . 7 . 2 Returning Equipment ...... , ..... ,, 2-1
........................
2.2 PREPARATIONFOR STORAGE OR SHIPMENT ., ,, ...,.,... 2-1
............................ ...... .. .
2.2.1 Packaging ,.. .., ,...... , ... .... .. , .. 2-1
....................
.... ... ....
2.2.2 Srorage , ., , ... ..,...... 2-1
...............
............ .............
2.3 PREPARATIONFOR USE ...., ............. .. .. 2-1
.........
........................ ..
2.3.1 LogicalAddress Selection ,.. .. ......, , .. , 2-1
2.3.2 DataTransferBus Arbit:ation .............................................................. 2-2
2.4 INSTALLATION ........................................ , ................................................. 2-4
...........................
2.5 INITIALCHECKOUTAND OPERATION VERIFICATION 2-4
SECTION 3 OPERATlON
3.1 INTRODUCTION
............................................ .. .................. 3-1
...................................................
3.2 CONNECTORS AND LED INDICATORS 3-1
.................................. ................
3.3 MODEL 1370 PROGRAMMING ..... 3-1
.......................................................................
3.3.1 SCPl CommandTable 3-1
3.3.1.1 Long and Short Form Keywords
................................................ 3-3
...............................
3.3.1.2 SCPl CommandTree ................... ....................... 3-3
..............................................................
3.3.2 Command MessageForma! 3-4
.....................................................................
3.3.2.1 Program MessageUn~t 3-4
.............................................................
.............
3.3.2.2 Program Message .. 3-4
..................................
3.3.2.3 ProgramMessage Delimiters .. ...... 3-4
.................................................................................
3.3.2.4 Parameter Forms 3-4
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CONTENTS (Continued)
.... .............
Program MessageTerminators ... .. .................. 3-7
................................................................................................
Queries 3-7
Model 1370 SCPl Commands ............................................................. 3-7
................................ .................................. Frequency ~Vessages .. 3-7
Funct~or:Messages ............................................................................. 3-8
Voltage (Amplitude) Messages ........................................................... 3-8
Voltage (Offset)Messages ........................ .. ................................. 3-8
........... ................... FrequencySweep Messages ........ .. 3-9
Burs1Count Value ........................................ 3-10
..............................................................................
Mode Messages 3-10
Output StateCommand .................... ., ............... .. .............. 3-10
TTL Trigger Sync Output Messages ................................................... 3-17
Trigger Source Messages ................................................................... 3-11
Trigger Slope Messages .................................................................... 3-!I
System Error Queries ....................... ..... ................................. 3-12
Model 1370 Calibration Query ............................................................ 3-12
....
'TST Self Test Query .................... .......
......... 3-14
........................................................................
'TRG System Trigger 3-74
...............
..............................
IEEE 488.2 Common Commands .......... 3-14
........................................................................ 3.4 MODEL 1370OPERATION 3-14
Output Terminations .......................................................................... 3-14
lnput/Output Protection ....................................................................... 3-15
Power On/Reset Defaults ................................... ...... ..................... 3-15
Continuous Mode ............................................................................. 3-15
DC Output .......................... .. ......................................................... 3-16
VCG Operation .................................................................................... 3-:7
Introduction ......................... .. ......................................................... 3-77
Frequency Modulation (FM) ................................................................ 3-18
Exrernal FrequencySweep ................... ... .... ............................. 3-18
Triggered Operation .................... .... ......................................... 3-18
Introduction ...................................................................................... 3-18
.................................
ExternalTrigger Input ......................... ...........,...
3-13
.....................................................................
BUSTrigger Commands 3-19
VXI Trigger Bus Input .......................................................................... 3-19
Gated Operation ....................... .. ..................................................... 3-20
Burs: Operation ................................................................................... 3-21
..................................................
ExternalWidth ..................... ....... 3-22
InternalFrequencySweep ............................ .. ................................. 3-22
................................................................................
Status Command 3-22
SECTION 4 CIRCUIT DESCRIPTION
TO BE SUPPLIED AT A LATER GATE
SECTION 5 CALIBRATION
..................................................................................
5.1 FACTORY REPAIR 5-7
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5.2 REQVIRED TEST EQUIPMENT ........................................... ... ............. 5- 1
5.3 CALIBRATION ....................................................................................... 5- 1
5.3 1 Semi-Automated Procedure ............................................................... 5-1
5.3.2 Preparation .......................................................................................... 5-2
5.3.3 Connec!or Term~nat~on ........................................................................ 5-2
5.3.4 Caiibrat~onProcedure ................... .... ......................................... 5-2
SECTION 6 TROUBLESHOOTING
TO i3E SUPPLIEDAT A LATER DATE
SECTION 7 PARTS AND SCHEMATICS
7.1 DRAWINGS .......................................................................................... 7-1
.................................................................................................. 7.2 EqRATA 7-1
7.3 ORDERING PARTS .................................................................................... 7-1
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TABLES
Table 1-1
Table 3-?
TaSle 3-2
able3-3
Table 3-4
Table 3-5
Table 3-6
Table 3-7
Table 3-8
Table
5-1
Figure 1-1
=~gure 2-1
F~gure 2-2
F~gure2-3
F~gure3-1
Figure3-2
F~gure3-3
Figure 3-4
Figure 3-5
F~gure3-6
F~gure3-7
F~gure3-8
F~gute3-9
F~gure3-10
'~gure 5-1
FrequencyRanges
........................ .... ................................. 1-3
Model 1370 FroniPanel
.......................................................... 3-3
Model 1370 CommandSummary
.......................... .. ......... 3-5
CalibrationSteps
.................................................................. 3-12
Error Messages
....................................................................... 3-13
Self Test Respcnse
................................... ..... ......................... 3-14
IEEE 488.2 Commcn Commands
..................... ... ............ 3-14
Input and Output Impedances
............................................... 3-14
FrequencyRanges
.......................................................... 3-18
List o! Tesr Equipment ............................................................ 5:
ILLUSTRATIONS
Model 1375 12 MHz VXI Sweep/FunctionGenerator ............. 1-0
Se! the
Logical Address ......................... .. ..................... 2-2
BusArbitration Level Jumpers ................................................ 2-3
...........................................................................
Test Setup 2-4
..........................................................
Model 1370 Front Panel 3-2
................... .....................
ivlodel 1370 Command Tree .. 3-6
.................................................................
OutputTermination 3-15
....................................
Model 1370 Basic OperationSetup 3-16
...................................
ContinuousWaveform Characteristics 3-16
....................................................................
VCG Nomograph 3-17
Triggered WaveformCharacteristics
................... ...... ........ 3-19
..............................................
Gate Waveform Characteristics 3-23
...........................................
BurstWaveform Characteristics 3-21
..............................
ExternaiWidthWaveform Characteristics 3-22
Test Points and Adjustments
.......................... ... .......... 5-5
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RUS
FAIL
MODID
Alll
A24 a
SYNC OUT
SWEEP OUT
model 1370
Figure 1-1, Model 1375 I2 MHz VXI Sweep/Function Generator
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GENERAL
1.1 THE MODEL 1370
The MODEL 1370is a three function(sine, triangle,
somuare] 'C size\/XIProgrammableSweepiFunction
Geqer80r. I! car. operate as a continuous, trig-
gered, gated or burs: signal source at output
arnpiit~desup to 20 Vpp. Additionally, the Model
1370 can be programmed for dc and 'external
wid!h (two level output determined by external
s~gna!andprogrammabletrigger referencelevel).
It
hasbi-directionalfrequencysweepcapabilirywithin
tie frequency range of .01 Hz and 12
MHz, with
either linear
or logar~thmicsweep characteristic.
i3eourDu; level is swecified from 10 mV to
10 Vpp
!nto
SOR rerm~nation,and 20 mV to 20 Vpp inro an
oDen circclit with
3.5 digits of resolution. Offset can
beprogrammedtovary thewaveiorm'sbaseline
up
ro 2 1 OV, or inthedcfunction,varythedc outpu!. The
kmc!ion output is protecred from external over-
voliagesupto
1 C3V peak.Activationof theprotection
circui!~sets error status bits monitored by the VXI
son?roller.
Conirolof the sweepifunction generator adheres to
:he
SCPl (Standard Commands for Programmable
Insrrumenls)industrystandard languageforremote
in~lrurnentprogramming.
1.2 SPECIFICATIONS
1.2.1 Functions
Prqrammable sine, triangle, square, square com-
?;men!,external width, or dc.
1.2.2 Operating Modes
Continuous:
Oulput continuous at programmed frequency. Fre-
quency can be modified via the VCG
IN.
Trlggered:
3u!pill quiescent until triggered by an exrernal
signal, a
TTLTRG signal, or a VXI bus command,
lhen generates one cycle of the programmed ire-
quency
Gated:
S~mlarto ti~ggeredmode except output continues
for theGurat~on of gatesignal. The last cyclestarted
IS czm~lered.
Burst:
Programmable numoer of waveform cycles I.! a
ourst. Burst length,initiated by the tr~ggers~gnal,is
programmable between2and2wcycles.ivlaxinum
burst rate is
12 MHz.
1.2.3 Frequency Range:
0.01 Hz to 12 MHz.
1.2.4 Outputs
Functlon Output:
Waveforms from 0.01 to 10 Vpp into 508 ((3.02 :o
20
Vpp into r50k8). DC or offset programmaole
from-5Vto +5V into50Q (-10Vto +10Vinror3CkR).
Programmable on or off (Zoff
>5C3 rc 8).Absolute
peak amplitude plusoffsetmay not exceed
5V Inlo
50R (10V into 250 kQ).
Source Impedance: 50Q.
Protection:
Outputprotected tot 1 OOi/
peaks.
Sync Output:
TTL level square wave into 50Q at programmed
frequency. In addition, the Sync Output may be
programmedto driveany oftheeight
TTLTRG' lmes
on the VXI backplane.
TTL Compatible:
50.4 to 22.4 V into 50R,
r0.8to r4.8
V into 253 kR.
Source impedance: 509
Timing; Concurrent with fl;nc:ion
output in square; lags sme
and triangle by
93'
Prolection: Output protected to *?5 V
inputs.
Sweep Output:
Linear 0 V to +tO V (open circuit) ramp signai
occurring during
a frequency sweep. Instanra-
neousvalue of rampvoltage indicates percent
ttmE
completionof frequency sweep.
Amplitude:
0 V t 5CO mV at sta:: a'
sweep,inoeasrqgto I 1OV
2 SCO mV at sweeo stop.
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Output protectedto -. 15 V
Inputs.
I .2.5 Frequency Sweep
Tie SVEEP OClT 3NC IS actwe w~th 2 Sweep Mode
se1ec:e3, aq.2 1nzs:lve 2t other rimes.
Sweep Modes:
Co?:~r;wus Swee~and,9eser (CRESet):
Cont~nuouslysweeps from programmed
start frequency to programmed stop fre-
quency, resets to start frequency and be-
gins a newsweep. Repeatscontinuouslyat
:ne soec~fiedsweep tlme.
Soni:,wous SweepandReverse(CREVerse):
Con:lnaously sweeps from start frequency
ta stop freauency and back to start fre-
aJency. Repeatsconr~nuouslyat thespeci-
fied sweep ilme.
Triggered Sweep andReset(TRESet):
Programmed srart frequency is generated
continuously untilthe Model 1370receives
a trlgger,whichwill initiateonesweeptothe
programmedstop frequencythenareset to
:he slart frequency.
Tvggeren' Sweep andReverse(TREVerse):
Programmed start frequency is generated
canrlnuouslyuntllatrlgger signal
IS received,
ivh~cP,
will rnjliateone sweep from the start
ireauencylothe stop frequency. The gen-
eraror immed~atelysweepsbacktothestart
freouency and holds for another trigger.
TiiggeredSweep andHold(HRESet):
Programmed start frequency is generated
cmtlnuouslyuntilatrigger signalisreceived,
lsnich will initiafeone sweep from the start
frequency to the stop frequency. Tne gen-
erator holds al the stop frequency until re-
ceipt ol
2 second trigger which ramps it
bacK to the start frequency, where
it holds
iv another trigger cycle.
Tr!g_oered Sweep and Hold
with Reverse
(H8EVerse):
Picgrarnmed siar! frequency is generated
cor;hiuously untilatriggersignalisrece~ved.
v~hlchwill initiateone sweep from the start
irequency
to the slop frequency. The gen-
eralor ?~oldsat the stop frequency until re-
motof a second trigger which sweeps it
back to the start frequency, where
it holds
fa: another trigger cycle,
i&mual Sweep (ivlANual):
Outpu: frequency is programmed behveen
start and slop frequencies
Witr :he ald 3'
the SWEEP OUT voltage,usedfor3res,se!y
setting up sweep cha:acteristics.
Direction:
Sweepdirect~onis programmableelther upor dowo
in all modes.
Lln/Log:
Frequencysweep characteristic programmaoie for
elther llnear or logarithmic.
Time:
The durationof one swept transition between start1
stopfrequencies, programmed from 10msto 1COs
FlybackTime:
c1 ms.
Resolution:
A maximumof 4096 points per second (244 ps per
point).
Accuracy:
+0.2% for sweep time, +(2% of setting + 2% of
range)for startistop frequencies (see range defini-
tions in Table
1-7).
Range:
Maximum calibrated range IS 1CO:l ratlo of
startlstop
frequencies. Wider rangeacceptedon a
single range(see Table 1-1)with a device speclf~c
error generated. Ratio of startistop values I~rnlted
only by lowest
practically achievable value; excep:
for upper values
r 10 MHz, then lower value limlted
to 22
MHz. The greater of rhestart or stop frequen-
cies determines the selected range.
Trlgger Source:
May be from the external input, internal trrgger
source,the llLTRG' lines, the 'TRG command, or
the Word Serial Trigger command.
Trlgger Width:
Minimum of 0.5 ms for a sweep time 51s. For
sweep time >Is, minimum width is (.OCOS'sweep
time).
1.2.6 Inputs
VCG In:
z 12V Into10 kR, for upto 1200:l frequency change.
i 1OV givesthe 100C:l rangemaximum; + 12Vgives
20%overrange.TheModel 1370usesnineinternally
selected frequency ranges (FR),where:
FR
= 102. 101, ... .or 106Hz,perTable 1-1:
An internalvoltage (FRQ)between 1 and 12 volts IS
used as the multiplier of FR to set the output fre-
quency.
If the VCG input is used, it issummedwith
FRQ and the output frequency IS:
Frequency
= (FRQ + VCG) * FR Hz
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Table 1-1. Frequency Ranges
Range Programmed CW or 1200:1
(FR) I upper sweep value
t
VCG range
10.0kHz to 12 MHz
1 .OO kHz to 1.20 MHz
100Hz to 120kHz
10.0Hz lo 12.0 kHz
1.00Hz to 7.20 kHz
100mHz to 120 Hz
10.0mHz lo 12.0 Hz
1.03mHz to 1.20Hz
100 uHz to 120 rnHz
+ r.:
~l ' :.00 MHz to 12.0 MHz
i
!C' 1 103kHzto999kHz
, n4
Id a 10.0kHz to 99.9 kHz
!Iq.!ne:e FRQ and VCG are In volts. A sum of9.99 V
yves mzx~mumrange, and 12V gives 20%
overrange.
Slew Rate: 1 .O V/p
1 Y
i 02
VCG IN accuracy: 24%
1 .OO kHz to 3.93 kHz
100 Hz ro 999 Hz
10.0Hz to 99.9Hz
1.30Hz to 9.99 Hz
1C3 nHz
to 999 mHz
Trlg In:
F~xeo TL compat~ble!rigger levelat 1.2 V. Trigger
is ?rograrnmabletoeithernegativeorpositiveslopes.
Inadd~t~on,anyoneof the eightTTLTRG'linesonthe
\/XI backplane can beselected asthe trigger input.
I tO.OmHilo99.9mHz
;dax;mum Rafe:
12 MHz(24MHzfor Exter-
nal Width).
M~nirnum Wdtn: 20 ns (except triggered
sweep modes).
Input Protection:
Inputs protected against s50V
1.2.7 Precision
Frequency
Resolution: 3-1/2digits.
Accuracy: 22%.
9ep eafaSitiry:
* 1 % for 24 hours.
Amplitude
Rssolutiont
3-112digitsor 2.5mV when
absfpeakamplitude
+ off-
set] >0.5V; 3-1/2 digits or
0.25 mV when abs[peak
amplitude
+ offsel] s0.5V.
Normal
sweep range
1CO kHz to 10.0 MHz
2.00MHz to 12.0MHz
10.0kHz
to 999 kHz
1 .C3 kHz to 99.9 kHz
100 Hz to 9.99 kHz
10.0Hz to 999 Hz
1.03Hz
lo 99.9Hz
100 mHz.to 9.99 Hz
10.0 mHz to 999 mHz
7 .OO mHz to 99.9mHz
Lowest
practlcal value
iO.0kHz
2.C3 UHz
1 .C3 kHz
100 Hz
10.0Hz
1 .OO Hz
100mHz
10.0mHz
1 .OO mHz
100 pH2
Accuracy: *(2% + 5mV) for 0.1 tc
1 Vpp(abs(peakamplitude
+ offset] s0.5Vj; ~(2% +
20 mV) for 1 .O1 to 10Vp?.
* 40 mV for all other.
Repeatability (24 HrsJ:* ( 1 % + 1 0 mV).
Flatness: k0.1 dB to lOOkHz,
s 1.5dBio12 MHz for out-
putat 5Vp-p. Referenceis
1 kHz.
Offset
Resolution:
3-1/2 digitsor 2.5 mVwnen
abslpeak ampliruae
+ off-
set] >OW; 3 112 digits or
0.25mV when abslpeak
amplitude
+ offset] 50.3..
Accuracy:
*40 mV in dc function.
Repeatability (24 Hrs): s(? YO + 20 mV).
I .2.8 Waveform Quality
Sine Distort~on:
(5Vpp)TotalHarmonicDis-
tortion (THD) less
tran
05%,10 mHzto 99.9 kHz.
NoharmonicsaSove: -40dBc, 100 kHz tc!
999 kHz,-30 ~Bc, 1 MHzio
12MHz.
Time Symmetry: =(I% + 8ns).
Square Transition:
<I5ns fcr sSVpp. <I 7 ns
for > 5Vpp.
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1.3 GENERAL
1.3.1 SCPl Programming
,-
,-,ontor--s ro SCPl Version 1.0 and IEEE-4ee.2stan-
GZ~C manoatec commclds Rc31 [eve!commancis
~vude
D1AGnostic MODE OUTPut
SOURce STATUS SYSTem
TRlGger
I .3.2 VXI Interface
hiessaaebased, 256 byteinputbuffer. Supponsthe
f,-, .,,i,~mg +. , subsets/prolocols:
A1
6 0 16 Master, A1 6 Dl 6 Slave;
VXI bus Instrument Protocol
(I);
VXI bus IEEE-488.2InstrumentProtocol (14);
Event Generator, ResponseGenerator;
DC (DynamicConfiguration)Device,
t 3.3 Environmental
Temperalure Range: 25°C + 10°C tor specifled
operation.
3~erating:
0°C to 50°C within toler-
ances rwice normal specl-
fications.
Srorage: -40°C lo +71°C (RH not
controlled).
M'arm-up T~me: 20mrnutesforspecifiedop-
eration.
Altitude:
O~erating: Sea levei
!o f3,SCS f:
Storage: Sea level to 43.3CS
f!.
Rela!ive Humidity (non-condensing):
0°C to ilOaC: no1controlled.
+ll°C to 40°C:
95i5-36 RH max.
+3l "C to +40eC: 75t5% RH max.
+41°C to +50aC: 4555%
RH max
Dimensions: Single slot, 'C size VXI
module. (30
x 260 x 353
mm).
Weigh!: €1.6kg(3.5 ID).
1.3.5 Power
Tofa/: < 24 Wans
Voltage
Peak Current Dynarnlc Current
+24 Vdc 400 mA 150 mA
+5 Vdc 909 mA 109 mA
-2Vdc 50 mA 5 mA
-5.2 Vdc
50 mA 5 mA
-24Vdc 350 mA 100 mA
1.3.6 Rellablllty
>20,050 hours MTBF at 25"C, ground benign.
MIL-HDBK-217calculationat50%componentsrress.
1.3.7 Normal Ume
Within a VXI mainframe with cooling air. Maximum
airflowrequirementfor10°C riseis0.06mm(.C925 in)
H,O at 0.8 llsec (1 -7CFM).
1.3.8 Safety
MIL-T-28800D,UL-1244,and the VXI SystemSpecl-
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PREPARATION
2.1 RECEIVING INSPECTION
Check the shipment at the time of delivery and
inspect each box for damage. Describe any box
damage and list any shortages on lire delivery
involce.
2.1.1 Unpacking lnstructlons
Unpack the boxes. Unpack the boxes in a
cleanand dry environment. Save all the pack-
Ing material In case the instrument must be
returnedfor repair.
Inspect the shlpment for damage. Inspect
the equipment carefully for any signs of me-
chanicaldamageregardlessof theconditionof
the shipping boxes.
If necessary, flle a clalm, In the case of
mechanicaldamage,call the snipper immedi-
ately and start the claim process
Call Wavetek. Call Wavetek'sCustomer Ser-
vice representative
(6I9 279-2200) to inform
them that the shipment arrived damaged.
Pleasebe preparedto provideadetailed dam-
age repon.
Follow these steps when you return equioment to
Wavetek:
1. Save the packlng matertal. Always return
equipment in its original packing material and
boxes. If you use in-adequate material, you'll
:lave to pay to repairany shipping damage as
carrierswon'tpayclaimsonincorrectlypacked
equipmeni.
2. CallWavetek CustomerServlce and ask for
a return authorlzatlon.
The Wavetek Cus-
tner Service representative
(619 279-2200)
wll
zsk for your name.telephonenumber,com-
pany name, equipment type, model number,
serial number, and a description of the prob-
lem.
3. Pack and shlp the equipment,
2.2 PREPARATION FOR STORAOE OR
SHIPMENT
2.2.1 Packaglng
If at all possible, always use the original shipping
container. However,when using packing materials
olherthan !he original, usethe following guidelines:
1. Wrap the Model 1370in ESDsensitive packing
material.
2. Use a double-walled cardboard shipping con-
tainer.
Protectall sides, includingthe top and bottom,with
shock absorbing material (minimum of
2 inch thick
material) to prevent movement of the Model 1370
within the container. Seal the shipping container
with approvedseatingtape. Mark "FRAGILE"onall
sides, top, and bottom of the shipping container.
2.2.2 Storage
The Model 1370 should be stored in a clean, ary
environment. In high humidity environments, pro-
tecttheModel
f 370fromtemperaturevariationsthat
could cause internal condensation. The tollowing
environmental conditions apply to both shippng
and storage;
Temperature -40°C to +7iaC
Relative Humidity not controlled,
non-condensing
Altitude ~40300 f! (1 2192 m)
Vibrat~uion < 29
Shock c 40g
2.3 PREPARATION FOR USE
Paragraph 2.3 covers the following topics:
LogicalAddress Selection
DataTransfer Bus
Arbitration
Installation
2.3.1 loglcalAddress Selection
The VXI chassis Resource Manager identifies units
inthe system by the unit's lcgicaladdress. The
VXI
logical address can range from 0 to 255 However,
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aadresses 0 an0 255 are reserved for special func-
!ions. Address
0 identifies [heResourceManager.
Acaress
255 permits the Resocrrse Manager to
dynamically address the unit basedon the unitsVXI
chass~s
SIO:.
T3 change the Model 1370's logical address, use
!he eight position DIPswltch (figure 2-1)accessible
fromthe side panel. The Model 1370 uses binary
values
(2' to Z7) to set the address usingtke actwe
low address switch. This means the OFF position
represents a log~cal1. Conversely,an ONposition
FeDresenrs
a logical 0. Switch positionnumber one
IS the least s~gnificantbit of the address, Insert A in
iiglrre
2-1 illustralesaswitch set loalogical address
of3
Vdavetek ships the Model 1370 with a logical ad-
dress of 255 for Dynamic Configuration, Refer to
msert
0 in figure 2-1.
2.3.2 Data Transfer Bur Arbltration
The Model 1370hasVMEbus Mastershipcapabil~ly
This means the SweepIFunction Generator, when
enabled,sendsResponsesandEventsas signalsro
i1sCommander. The Model 1370 cannot drive the
interrupt lines.
The Model 1370isconfiguredasa level
3 requestor
by the factory. The level 3 Bus Request and Bus
Grantlinesareused(BR3', BG31N', andBG30UTm).
The other Bus Grant lines are daisy-chained by
jumpers. TheVMEbusspecificationsdescribethree
priorityschemes:Prioritized,Round-robin,andSingle
level. The Prioritized arbitration assigns the bus
according to a fixed priority scheme where each of
four bus lines has a priority from highest (BR3') ro
lowest(BRO'). Round-robin arbitration assignsthe
bus ona rotatingbasis. Single levelarbitration only
accepts requests
on BR3'.
ADDRESS
( , 255
"----'
Flgure 2-1. Set the LogicalAddre88
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Flgure 2-2. Bus Arbitration Level Jumpers
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I' a bltferenl requeslor leveiis required,the jumpers
mus! be changed. The following instructions and
f,gure 2-2w1lla~d ir, recoifigurlngthe Model 1370to
a new ievel. Refer lo the VMEbus specification for
more infornatiar on ' daia transfer bus arbitration'.
CAUTION
The Sweep/Functlon Generator
cont~ins
CMOS devlceswhichare
sensltlve to statlc eiectrlclty,
Whenperforming thebusarbltra-
tlon level change,statlc electric-
ity dlscherge straps should be
worn.
Removethe four flat head screws onthe Model
1370 left s~depanel, remove the panel.
Remove the four pan head screws holdmg Ihe
VXI Interface card to the main Sweep/Function
Generator board
Slowly and gently
lilt the VXI Interface card up
frorri the FclnctionGenerator board. Cons~der-
aole force may 5e required as there are four
connecto:s between thetwo boards witn atotal
of 136 pins. Do not use a metallic prying tool.
Change the data transfer bus arbitration jump-
ers
lo the desired level. Referto figure 2-2.
Carefully ~nstallthe VXI lnterfacecard onto the
Sv~eeplFunct~onGenerator board. Install the
four pan head screws, the slde panel and the
fo~: flar leadscrews.
2.4 INSTALLATION
Tielnsrrumentwill beinstalled in a VXI mainframein
aty slot except slot 0 (zero). When inserting the
~nstrunevmto the mainframe, it should be gently
rockedbackandforthtoseattheconnectors inlothe
backplanereceptacles. The ejectors will be
at right
angles to the front panel when tne Instrument
IS
properly seatedintothe backplane. The two captlve
screws above and below the ejectors are used
ro
secure the instrument into the chassis.
2.5 INITIAL CHECKOUT AND
OPERATION VERIFICATION
This procedureprovidesthe operator,service teci-
nician,receivinginspector,etc,with aquickmethod
of verifying the functional operation of fhe Moae!
1370. This proceduredoesnot test theunit'sspecl-
fications. Connecttheequipmentas shownInf~gure
2-3 and perform the following procedure. This
procedure assumes the Model 1370 is properiy
installed ina
"C" size VXI chassiswith aVXI control-
ler in slot 0.
PowerOn. Withthe Model 1370installed inlne
chassisandthescopeconnected, poweronthe
VXI chassis:
Verify the
RUN indicator is lit.
Verify the FAIL indicator is extinguished.
Verify the MODlD indicator flashes.
Default Settlnga. Send the command:
OUT?:STAT ON
Verify the scope displays a IkHz, 5Vpp sine
wave.
Frequency. Change the frequency to 1CO Hz
by sending the command:
FREQ 100
Verify the scope displays a 100 Hz. 5Vpo sine
wave. Change the frequency to
100 kHz by
sending the command:
FREQ 1E5
Figure 2-3. Teat Setup
MODEL 1370 OSCILLOSCOPE
-
-
0 TRIG IN
a 'JCGlN
---8
swc our
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Verliy the scope d~splays a 1CO kHz.5Vpp sine
wwe.
4, Svfeep. Changeto tfiesweepmodebysending
the command:
zFLzz : !.tC:E S:,,lz
Ver~fyrhe scope shows an outpur sine wave
startlng
at 999 Hz and linearly sweeping up to
9.99kHz In a 103ms tlme span. Verify SWEEP
OUT ~ydisplaying bothCHIandCH2. Change
the sweep tlme to 10 seccnds by sending the
command:
2:;: : ::XE 10
Veriiy the scope shows an oulput sine wave
s:ar?lnga!
999 Hz and linearly sweeping up to
9.99kHzina 10secondtime span. Changethe
st02 frequencyto 2kHz by sending:
25;
Ver~fythefrequency nowsweepsfrom 939 Hzto
2kHz
in 10 seconds. Change the start fre-
quency to 2CC Hz by sending the command:
FEZ2:STAR 20C
Verifythe frequency is now sweeping from 200
Hz to 2kHz in 10 seconds. Change the sweep
to dDwn by sending:
5:;~: 512 3~*,,y
Verify the frequency is sweeping from2kHz to
200 Hzin 10seconds. Change the sweep time
!o 1.0seconds by sending the command:
SYE:TIKZ I
Verify the frequency IS sweeping from 2kHz to
203 Hz ~n
1 second. Change the spacmg from
linear t~ logarirhmicby sending:
Verifyan o~viouschange insweep characteris-
r~csmen switching to logarithmic sweep.
Change the mode back to cw by sending !he
cornmancl:
Verify the output signal returns to 100 kHz. Se-
lect CHI scope display only.
5. Functlon. Change to the square waveform by
sending tne command:
Ver~fythe scope d~splaysa 100 kHz, 5Vpp
souare wave. Change to an inverted square
mveiorm5y sending the command:
Verify the scope displays a 100 kHz, 5Vpp
inverted square wave. Change to the triangle
waveform by sending:
Verify the scape displays a 103 kHz, SVpo
*
triangle wave.
6. Amplitude. Change the amplitude to 2.5Vpp
by sending the command:
VOLT 2.5
Verify the scope displays a 100 kHz, 2.5 Vpp
triangle wave.
7. Offset. Off setthewaveform - 1.25Vdc bysend-
ingThe command:
Verify the scope displays a
100 kHz, 2.5 \/PO
triangle offset by -1 -25Vdc.
8. Trlgger. Select the trigger mode by sending:
MODE TRIG
Select rhe TRIG IN connector as the trigger
source by sending the command:
TRIG:SOUR EXT
Connect a 1 kHz, lTL trigger source to the
Model 1370 TRIG IN connector. Tie Model
1370'sdefault trigger setting is positive slope.
+ 1,2Vlevel. Verify the scope displays asingle
cycleof a 100 kHz,2.5 Vpp trianglewaveotfse!
by -1.25 Vdc which repeats at 1ms intervals.
9, Gate. Select the gated mode by sending the
command:
KO9E GAT
Verify the scopedisplays about50cycles of 1 C3
kHz,2.5 Vpp triangle waves offset by -1.25Vdc
which repeats at
1 ms intervals,
10. Burst. Select the burst mode by sending rne
command:
XODE SURS
Change the burst count to 30 by sending the
command:
BURS 30
Verify the scope displays 30cycles ol 1 CO kHz,
2.5 Vpp triangle waves offset by -1.25 \!dc
which repeats at
1 msintervals.
This completes the Model 1370's initral checkou?
and operation ver~ficationprocedure.
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OPERATION
3.1 INTRODUCTION
3.3.1 SCPI CommandTable
TnlssectionprovidestheOperator/Programmerwith
ine information needed to operate the Model 1370
Sv:eep/Function GeneratorinaVXI system. The unit
resides ir: a \!XI chassis arld is subject to all of rhe
res:r~ciIonsand benefits o! that environment.
Pzragraph 3.2describes the Model 1370 connec-
;CKS ardLED indicators. Paragraph3.3 defines the
Mcdel 1370 programming messages. Paragraph
3.4 demonstrates how to operate the Model 1370
,Jslng:he
defined messages.
3.2 CONNECTORSAND LED INDICATORS
ih~sparagraph describes the Madel 1370 front
sanel connectors and LED ind~cators.Figure 3-1
!iius!ral?sthe front panel;nold numbers identifythe
1noicatc:s anc connectors. Table3-1describes the
'mctimoieach Item shown in figure 3-1.
3.3 MODEL 1370 PROGRAMMING
The Model 1370 ccmrnunicates within the SCPl
(STandard Commands for Programmable Instru-
ments) and IEEE 488.2 standards. Therefore,the
Lhdel 1370 must respond to two types of corn-
man&; SCPl commandsand IEEE 488.2Common
Commands. The IEEE 488.2 Common Commands
support func:ions that are common to all instru-
rents such as reset, self tesr and status re?orting.
Common Commands are non-heirarchical(can be
included within SCPI commands without disturbing
their heirarchical selationships)andare easily icien-
ritied
Sy their leadingasterisk ('). SCPl commands
Sl~Dpofifuncrionsthat arespecific to the instrument.
-
, n:soarag:aph provibes the following information:
SCPl Command Table - Paragraph3.3.1.
Comnand Message Format- Paragraph3.3.2.
;docel
i 370SCPlCommands - Paragraph3.3.3.
Se?'esl Q~eryResponse
- Paragraph3.3.4.
Syslem Trigger-Paragraph 3.3.5.
IEEE 488.2 Common Commands
- Paragraph
2.2.e.
Table 3-2 lists the SCPl commands used in the
Model 1370andindicatestheir hierarchicalrelation-
ships. The IEEE 488.2 Common Commands are
listed in a separate table (Table 3-6). The SCPl
Command Table is organized as follows:
Keyword
: SOURce ]
:FREQuency
[ : CW]
: XODE
START
STOP
Parameter Form
(numeric-value)
<lisr>
(numeric-value)
(numeric-value)
Notes
The indentationsof keywords indicates their hierar-
chicalrelationshipsaccordingto atreesystem. The
left-most edge is called the
roo! node.
Keywords
closer totherootnodeare higher inhierarchy:lower
nodes are to the right of their parent node. To
programor queryasettable parameter,the fullpatn
must be defined to reach the keyword appended
with the required parameter form.
A SCPl program-
mlng string typically starts a[ the root node and
proceeds to the right through branch nodes fc the
leal node. This string of keywords separate0 by
colons and completely defining a single path is
defined as a Program Header, and is commonly
referredtoasa'command' (seeparagraph3.3.2)or
as a 'query' (see paragraph 3.3.2.6).
A Pragram
Header followed by Program Data is defined as a
Program Message Unit (paragraph 3.3.2.1
).
In the example above the left-most keyword.
:SOiiRcej, is directly off the root node. Nodes in
this posltion are called
Subsystems, and all Key-
words indented under
;SOURce] are part of the
Source Subsystem.
?REQuer,cy IS one of themain
parametersundertheSourceSubsystem. Theth~ro
level keywords under FREQuencyset or query the
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i-
Fundion Generator
RUN
FAIL 7
TRIG IN
VCG IN
SYNC OUT
SWEEP OUT
FUNC OUT
mode! 1370
Flgure 3-1. Model 1370 Front Panel
3-2
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