HP 3314A User manual

OPERATING MANUAL
FUNCTION
GENERATOR
3314A
.
- ~ ~ ~ ...
F/£JIj HEWLETT
a.:~ PACKARD

~~~KL~6 ------------.
MODEL 3314A
FUNCTION GENERATOR
OPERATING
MANUAL
Manual Part Number 03314 -90001
Microfiche Part Number 03314-90201
Copyr ight ©,1 982, 1987 by Hewlett -Packard Company
8600 Soper Hill Road. Everett, Washington, U.S.A., 98205 -1298
Printed in U.S .A .Printed:June
1987

_-------Flin-
HEWLETT _
PACKARD
CERTIFICATION
Hewlett-Packard Company certifies that this product met its published specifications at the time of shipment from the
factory.Hewlett-Packard further certifies that its calibration measurements are traceable to the United States Na-
tional Bureau
of Standards, to the extent allowed by the Bureau's calibration facility, and to the calibration facilities
of other International Standards Organization members.
WARRANTY
This Hewlett-Packard product is warranted against defects in material and workmanship for a period of on eyear
from date of shipment. During the warranty period, Hewlett-Packard Company will, at its option, either repair or
replace products which prove to be defective.
For warranty service or repair, this product must be returned to a service facility designated by -hp-. Buyer shall
i ..my shipping charges to -hp- and -hp- shall pay shipping charges to return the product to Buyer. However, Buyer
shall pay all shipping charges,duties, and taxes for products returned to -hp- from another country.
:
HP software and firmware products which are designated by HP for use with ahardware product, when properly in-
stalled on that hardware product, are warranted not to fail to execute their programming instructions due to defects in
materials and workmanship. If HP receives notice of such defects during their warranty period, HP shall repair or
replace software media and firmware which do not execute their programming instructions due to such defects. HP
does not warrant that the operation of the software, firmware or hardware shall be uninterrupted or error free.
LIMITATION OF WARRANTY
The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by Buyer,
Buyer-supplied software or interfacing,unauthorized modification or misuse, operation outside of the environmental
specifications for the product, or improper site preparation or maintenance.
NO OTHER WARRANTY IS EXPRESSED OR IMPLIED. HEWLETT·PACKARD SPECIFICALLY
DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE.
EXCLUSIVE REMEDIES
',d E REMEDIES PROVIDED
HEREIN ARE BUYER'S SOLE AND EXCLUSIVE REMEDIES. HEWLETT-
,n -\CKARD SHALL NOT·BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSE-
,,JENTIAL DAMAGES, WHETHER BASED ON CONTRACT, TORT, OR ANY OTHER LEGAL THEORY.
ASSISTANCE
Product maintenance agreements and other customer assistance agreements are available for Hewlett-Packard pro-
ducts.
For any assistance, contact your nearestHewlett-Packard Sales and Service Office.Addresses are provided at the back
of this manual.

TABLE OF CONTENTS
Page
Nhat's In This Manual .
rHE
3314A FUNCTION GENERATOR 1
nstallation
Instructions 3
Ihe 3314A Rear Panel 5
Ihe 3314A Front Panel 6
V10des of Operation 8
How to Use the Free Run Mode 9
Free Run
Summary 9
Hor to Use the Free Run Mode
f L.. .ear Sweeps) 10
U"'~ar Sweep Summary 11
(
How to Use the Free Run Mode
(Log Sweeps) 12
Log Sweep Summary 12
How to Use the Gate Mode 13
Gate
Summary. . . .. . .. .. . .. . . ... . ... 13
How to Use the Gate Mode
(Gated Sweeps) 14
Gate Sweep Summary .14
How to Use the NCycle Mode 15
NCycle Summary 15
How to Use the 1/2 Cycle Mode 16
1/2 Cycle Summary 16
How to Use the Phase Lock Modes. ... . . . . . 17
rse Lock Summary .. . . . . . ........ . . 18
H.
to Use the ARB Mode 19
hi ,B Mode Summary 19
THE
WAVEfORM LIBRARY 21
Free Run
23
1. Large Signal With Large DC Offset 23
2.Small Signal With Large DC Offset - 23
3. Large Signal With Small DC Offset 23
4. TIL (Squarewave With DC Offset) 23
5. ECL (Squarewave With DC Offset) 23
6. RAMPS (Variable Symmetry
Triangle Wave) 24
7. 100% Amplitude Modulation 24
8. AM (Suppressed Carrier) 24
9. AM With Function Invert 24
10. VCO 24
Page
Free Run (Unear Sweeps)
25
11 . 100Hz to 1kHz 25
12 .Small Sweep Ratio (1.06: 1) 25
13 .Large Sweep Ratio (100 :1) 25
14 . TIL Level Sweeps 25
15. TIL Level, 95% Symmetry Sweep 25
Free Run (Log Sweeps) 26
16. Sweeping a Low Pass Filter , 26
17. 1 Decade Sweep 26
18 .Audio Sweep (20Hz to 20kHz) 26
19. Sub-Audio Sweep (2Hz to 20Hz) 26
20 . Low Frequency Sweep
(.2Hz to 2Hz) 26
Gate 27
21. Gated Sinewaves
(Start/Stop Phase =-
45
0).• • •• • • •• • • •
27
22. Gated Sinewaves (SYM = 95%) 27
23
.High Frequency Gate 27
24. Gated TIL Level Pulses 27
25. Gated TIL Level Pulses 27
Gated Sweeps- 28
26. Basic Gated Sweep (1Oms) 28
27 .Small Ratio Gated Sweep (2:1) 28
28 .Large Ratio Gated Sweep (1 00: 1). . . . . . 28
29. Audio Chirp 28
30. Swept Squarewaves 28
NCycle 29
31. 3 Cycle Burst 29
32. 7 Cycle Burst 29
33 .2 Cycle Burst 29
34. Haverslne 29
35. 4 Cycle Burst With
Start/Stop Phase = - 45% 29
1/2 Cycle 30
36. Basic 1/2 Cycle 30
37. Pulses With Overshoot. ..... . . . . . . . 30
38. Pulses With Varying
Rise/Fall Ratios
30
39 . 1/2 Cycle With 95% Symmetry 30
40 . 1/2 Cycle Trianglewaves 30
Fin X N 31
41. Squarewaves in Quadrature 31
42. 3 Pulses 31
43 .Trianglewaves 31
44 .Sinewaves 31
45. Squarewaves 31

TABLE OF CONTENTS (cont)
,Page
Fin +N" 32
46. Squarewaves ,32
47. Pulses. ..... .... . . . . . ..... . .. . . 32
48. Pulses 32
49. Variable Symmetry 32
50. Phase Locked Amplitude Modulation 32
ARB 33
51. Exponential Charge/Discharge 33
52. Square Law Response 33
53.Linear Steps 34
54. Exponential Steps 34
56. Exponential Response 35
56.Carotid Artery Pressure Wave 35
67. sin(XI/X 36
58.3Note Chord (Major Triadl 37
6.9. Fourier Series Squarewave
CosF- 1/3cos3F +1/5cos5FJ 38
eo, Damped Oscillations 39
I
D.:. {AILED OPERATING INF..QRMA TION 41
ARB ."43
Building an ARB Waveform
43
Recalling an ARB Waveform 46
Clearing an ARB Waveform 47
ARB Waveforms and the HP-IB 47
Definitions 47a
Calibration
48
CAlibrate All 48
Amplitude Calibration.... .... .. .. ... .. 48
Frequency Calibration 49
Calibration Disable, E04 60
Calibration Enable 50
Data Entry.... ...... ...... . ..... .... 51
Modify Knob. ........ . . . . . .......... 51
.' "'",nga Up or Down ........... . ... . . . .51
'..-.ange Hold :.. 51
'\mplitude Range 52
;equency Range 52
Offset Range. ... . . .... .. ....... ... .53
Symmetry .................... . . .. . 53
Error Codes
54
Errors While In Local 64
Errors While in Remote 54
Extemal Modulation 56
Amp litude Modulation 56
Amplitude Modulation Suppressed
Carrier 58
Frequency Modulation 58
Voltage Controlled Oscillator 59
Page
Functions
60
Operating Characteristics 60
Mode '61
Free Run 61
Gate 61
N Cycle 61
1/2 Cycle '61
An X N.
... . ..... .. . .. . .. . . .. •. .. . 62
Fin +N .... . ... ...... . .... .• . . ... . 63
Operator Alerts 65
Alerts While Programming DC Offset 65
Alerts While Programming the
Marker
Frequency... ... .. .. .. .. ... .. 65
Alerts While Changing Modes .. . . . . . . . . . .
65
Alerts While Entering Linear
or Log Sweep
66
Alerts When Programming ARB
Frequency
66
Outputs 67
Main Signal Output 67
SYNC
Output 67
Trigger Output 68
XAxis/Phase Output 68
X3 Output (Option 001 I 68
ZAxis Output 69
Preset
70
How to COMPLETELY Preset the 3314A 70
Specifications 71
Frequency Accuracy 71
Amplitude ............. . . . . . . .. . . ..
72
DC Offset... ... ........ ... ........ 73
Symmetry .......... . . ... . ....... . . 73
Phase 74
Function Characteristics 74
InternalTrigger Interval 75
F~quency Sweep 75
Modulation 75
Option 001-Simultaneous X3 Output. 76
General 77
Store & Recall 78a
How to Store and Recall
Front Panel Settings 78a
How to Recall ARB Waveforms 78a
REMOTE OPERATION 79
The HP-IB 81
What is the HP-IB 81
How Does the HP:IB Operate 81
HP-IB Specifications Summary 82
The 12 HP-IB Messages 83

TABLE OF CONTENTS (cont)
Page
The
3314A and the HP-IB 84
The 3314A's HP-IB Capability 84
3314A1HP-IB Verification 85
Analyzing Bus Problems 85
The 3314A's HP-IB Address 86
How to View the 3314A's
HP-IB Address 86
How to Change the 3314A's
HP-IB Address 86
Listen Only. ....................... . 87
Oevice/ListenlTalk Addresses 87
The Clear Message 88
The Data Message 89
lData Message
(Immediate Execute Commands) 91
Page
The Data Message
(Function Select Commands)
92
The Data Message
(Data Entry Commands)
96
The Data Message
(Query Commands)
97
The Status Byte 98
The Trigger Message 99
Programming ARB Waveforms 100
HP-IB Programming Summary blue
Sales and Support
Offices

WHAT'S IN THIS MANUAL
This manual contains the following four sections to help you operate the 3314A:
THE 3314A FUNCTION GENERATOR
an introduction to 3314A operation with instructions for quick and safe basic
operational checks.
THE WAVEFORM LIBRARY
sixty oscillograms representing across section of the 3314A's capabilities in-
cluding control settings and HP-IB mnemonics.
DETAILED OPERATING INFORMATION
alphabetically organized information about detailed 3314A operation.
REMOTE OPERATION
information to program the 3314A using the HP-IB, including aProgramming
Summary (blue pages).

THE 3314A FUNCTION GENERATOR
The 3314A is a mul ti-mode ,HP-IB programmable Function Generator featuring
Sine, Square and Triangle functions from .00 1Hz to 19 .99MHz . Sophisticated im-
plementation of the operating modes (see below) plus precision control of the tr ig-
ger signal
make the 3314A a flexible, easy to use function generator.
This sect ion contains information about the following subjects:
Installations instructions
The 3314A Rear Panel
The
3314A Front Panel
Modes of Operation
How to Use the Free Run Mode
How to Use the Gate Mode
How to Use the NCycle Mode
How to Use the %Cycle Mode
How to Use the Phase Lock Modes .
How to Use the ARB Mode
1

INSTALLATION INSTRUCTIONS
These steps will let you install and make the most basic operational checks. These
steps
constitute the minimum safety checks that must be made whenever a
331
4A is installed. Note that the 3314A is a Safety .Class 1 instrument (provided
with a protective earth terminal).
I WARNING
The 3314A should never be connected to an AC power
source without a protective earth terminal. The chassis and
all exposed shields are connected to the earth terminal and
"ttoetinq" or otherwise defeating this safety feature may
subject the operator to lethal voltages.
1. Check the 3314A for physical damage. Under no circumstances should adamaged
3314A be connected to power! Refer to the installation section of the 3314A Ser-
vice Manual. I
WARNING
The integrity of the protective earth ground may be inter-
rupted on a 3314A that is damaged. Under no cir-
cumstances should a damaged 3314A be connected to its
AC power source.
2. Check the line voltage selector on the rear panel. The selector setting should be
compatible
with the RMS voltage of your AC power source. The 3314A can operate
from AC power sources with voltage deviationsfrom +5% to - 10% of the selected .
value.
Connecting a 3314A to an AC power source with the in-
correct voltage selected will destroy the primary fuse.
3

INSTALLATION INSTRUCTIONS (cant)
3.Make sure that the line fuse is compatible with the voltage selected.
Table 1. Une Fuse Selection
s.mt ....
v __ s.IectIlI
Faa v.1ae
.Part .....
less than
100/ 120V
O.SA SLO BLOW 2110-0336
2141AOO200
220/240V OAA SLO BLOW 2110-0340
2141 AOO200
100f120V
1 .0A SLO BLOW
2110-0312
and greater
220/240V 0 .5A SLO BLOW 2110-0202
Using the wrong fuse value or fuse type will not protect the
circuitry inside the 3314A and may result in damage to your
3314A.
4. Connect the power cord. Please contact your local -hp- Sales Office if you
have any questions.
5. Set
the LINE switch to the ON position. This switch is located in the upper left
hand corner of the front panel. The following actions will occur:
-a 2 second
count down to allow electrical stabilization and test the front
panel LEOs
-a CAL ALL to generate afull complement of calibration constants
-if the calibration failed, the appropriate error number will be displayed for
1/2 second and the 3314A will try to calibrate itself for another 20
seconds or until acalibration is successful
6. Connect the 3314A to an oscilloscope as shown in Figure 1 and verify that
the 3314A's output is a 1kHz, 10mVp-p sinewave.Press the FUNCTION key
to cycle the 3314A's function to squarewave, triangle, off and back to
sinewave. The FUNCTION key is located in the lower right hand corner of the
front panel.
More detailed installation procedures are located in Section 2
of the Service
Manual.
4

INSTALLATION INSTRUCTIONS (cant)
©
VERTICAL SENSITIVITY 2mV/DIV
HORIZONTAL TIME BASE 5ms/DIV
@
o
Operation Into II Hi Z load is allowed except that the amplitude
will be twice the amount displayed by the 3314A .The purity
of the functions at high frequencies may be degraded because
of the transmission line Impedance mismatch .
Figun 1. Basic Installation Verification
THE 3314A REAR PANEL
ApI1 2•. 3314A Rar Pull
3 output (only instruments with Option 001 have
this
output) is a high voltage, low impedance out -
put whose output voltage is 3 times the displayed
amplitude and
offset whan the Main Output is ter -
minated
into Son .This output whose capable of
sourcing ± 30mA peak current without clipping.
The upper frequency
limit is 1MHz.
X Axis output produces avoltage ramp from -5V
to +5V whose voltage isproportional to
the sweep
frequency.This
output isusefulto drivethe X Axis
of plotters and oscilloscopes.
Z Axis output produces voltage levels to blank
(> + 5VI or enhance « -5V) the intensity of an
oscilloscopa display dur
ing sweep (intensifies tha
marker frequency and blanks the retrace) or ARB
(intensifies the current
vector) .
HP-IBis used to control the operating of the 33 14A
from aremote controller.This connector uses
metric fasteners and is not compatible with older
cables using english threated fasteners.
Matric
fasteners are available from -hp- to upgrade older
cables.
5

THE 3314A FRONT PANEL
Status Q) Store/Recall
Function
Internal
Trigger
0% to > too%
0% to ±1%deviation
+ 10% to -80%. uaeabla to -1 00 %
External Modulation
CD
AM ±1V - 100%
FM ±1V - ±1 'llo of range
veo 10%Nolt
The SfIC OUTPUT. ThIs output has a characteristic outpUt Im-
pedance of 600 when terminated Into :s 500. When terminated
Into > 500. It will deliver TTL compatible levels of 0 to
>2.5V.The maximum unloaded voltage Is limited to -3V.
The edges of the sync slgnlll are coincident with the peaka of
the sk\e and triangle funct lOlll lind coincident with the edges
of the square function. This relationship Is inverted by Function
Invert.
The lUll OIJTPUT .ThIs output has a charlleterlatlc output Im-
pedance of 600 . Although operation I nt o other than 500 II
allowed, the actual AC amplitude and DC offset will be dff-
ferent from the displayed values and the quality of the func-
tions will be degraded at higher frequencies due to transm is-
sion Rne Impedance mismatches .
The SWJTR IITYl parameter sets the period of the internal trig-
ger (note that the Trigger va port Is an output when tNT trig-
ger Is selected). This output signal Is useful as a sync signal
during SWftllps , gate and burst operstlone.
External Trigger
One EXT Trigger Is e signalyou apply to the Trigger va port
thet 88tlsities the selectable slope lind threshold conditlons
(note that the Trigger Ifa port Is en Input when EXT Trigger is
selectedl. EXT TrIggers ere level sensitive for Gate; edge sen-
sltlva for Burst. Phese Lock and Sweep operations.
Up to 5.non-ARB front panel control sett ings can be stored In
registers 1 through 5to be recalled .In the future .Reg/ster 0is
reserved for the front panel setting at power off. In addit ion. 6
ARB waveforms can be recalled from ARB registers 0through
5. ARB waveforms are automatically stored as they ere
created,
Another EXT Trigger is the MAN key.You will have to press
this key twice when In Gate mode ,to simulate a complete trig-
ger cycle (both levels/. Once is sufficient for all other opera-
tions .The min imum signal that will conslstently trlggM the 3314A
is ~ JOOmVp-p. centered on the selected trigger threshold
voltage.
Thera are two EXT Triggers available from the HP-IB, the
Group Execute Trigger (GET) and the • MN' programming com-
mend .
6
CD
FiI X • ... The 3314A win phase lock to the Trigger
(reference) signal lind output a trequancy ,N" times the
reference frequency . The N parameter sets ' N' from 1 to
1999. The frequency limits for both the 3314A and the
reference are from 60Hz to 20MHz. See • How to Use the
PHASE LOCK Modes
w•
Fill + • ..... The 3314A wlH phaee lock to the Trigger
{r" -ence) signal and output a frequency equal to the
rt. . enca frequency divided by , W . The N parameter sets
, N' from 1 to 1999. The frequency limits for both the
3. JA and the reference lire from 60Hz to 20MHz .See
'huw to Use the PHASE LOCK Modes' .
All ..... The ARB mode redefines the 3314A as an Arbitrary
Waveform Generetor. The output waveform consists of a
series of voltage ramps celled vectors. The operator hIlS con-
trol over the number of vectors, the 18ngth of each vector In
time and the height of each vector. Both continuoua ARB func-
tions {FREE RUN Model and gated ARB (GATE Mode) ere
allowed. See ' How to Use the ARB Mode' .
The 3314A has 7basic operating modes .The trigger signal,
either the 331 4A' sinternal trigger source or an external signal
you supply, is essential to every operating mode except FREE
RUN w ith sweep off.
FREE lUI ..... The 3314A outputs continuous Sine,Square,
Triangle or ARB functions .Continuous functions , sweeps and
ARB operations are allowed. See ' How to Use the FREE RUN
Mp<iew•
!
GAtt ..... The output: isW gated' ON and OFF by the Trigger
Ir '. Gated functions, sweaps and ARB operations are allow -
e... 5ee' How to Use the GA TEo Mode W•
This group contains the HP-IB status indicators and the LCL
key to switch control of the 3314A from remote to front panel
operation. When the LCL key is preceded by the BLUE shift
key, the 3314A displays its HP·IB address for 1/2 second. The
HP-lB address is set from the front panel and stored innon-
volatile memory .The factory setting Is7.See W How to
Change the 3314A's HP-IB Addresa" located In the HP-IB sec-
tion of this manual.
Mode
The Preset key Initializes the 3314A to its basic operetlng
state. This feature is esp&Clelly useful to quickly recover from
complex operating states .
Preset
ICya.E ..... The 3314A outputs a burst of N complete cycles
of the selected function. starting when a Trigger edge is
received. The N parameter sets the number of cycles from 1 to
1999 .The start/stop phase Is set with the Phase parameter
from ·90 ° to + 90
0•
See' How to Use the NCYCLE Moda
w•
1/2 CYClE ModI.. The 331 4A outputs alternate 1/2 cycles of the
selected funtlon when aTrigger edge fs received. The start
phase of the first 1/2 cycle (and the stop phase of the second
1/2 cycle) is set with the Phase parameter from .90
0
to
+90°. See 'How to Use the 1/2 CYCLE Mode
w•

Entry/Sweep
®
Modify
MIG( UP tr DOWI (1 or I) keys muttlpty or divide the displayed
value by
10 untit the 3314A's operating limits are reeched.
this provides an extremely fest method to modify the
displayed parameter.
Most of the keys /nthis group are select keys for varieble en-
tries.The top row contains select keys for the more universal
pararneters. Note that the blue shifted definition ofthe98 keys
presets the parameter. The second
row contains the select
keya for the 3314A 's sweep capabfilties. The SWfTR INTVL
key Is the select key for the sweep Interval(SW INTVLJ and
for
the internal trigger interval (TR INTVLI .When ARB is active,
the sweep functions are redefined to ARB functions.The keys are
renamed by the labels be
low them.
®Range
All variable parameters (selected by keys in the Entry Group)
are entered Into the
3314A using the Modify knob or the I or
Jkeys.These controls change the value of the displeyed
operating parameter.The
Modify knob has 2 basic operating
modes called
"Cursor" and "Multi Speed" .
CURSOR (a dig it is flashing) .This mode isuseful when making
small changes or changes of
constant Increments.The flashing
cursor dlglt is Incremented or decremented by 1 whenever
rotation of the Modify knob Is sensed. The - end -
keys
move the cursor through the display.
MULTI SPEED (no d igit la flashing). this mode Is useful when
making large chenges. The least significant digit In the dlspley
Is"incremented or decremented 1, 2, 4, 8, 16 or 32
times
faster depending upon how fast you tum the Modify knob.
IWIG£ HOlD Inh ibits autCHsnging of Frequency (8 ranges),
Amplitude 14 renges), and/or DC Offset (2 ranges) when the8e
p ~ " '''meters are changed with the Modify knob. When in An X
r. td Fin +N, FrllQ1.l&nCY Range Hold also Inhi bit sauto-
acquisition.
FlpI1 2b, 3314A FI'OIt Pt.,
7

JUlJLJl MM
ARB Mode. The 3314A is redefined as an Arbitrary Waveform Generator capable of
producing user defined waveforms.
MODES OF OPERATION
Fin +N Mode. The 3314A output frequency is locked to and ,. liN" times the
reference frequency.
Fin X N Mode. The 3314A output frequency is locked to and "N" times the
reference frequency.
112 CYCLE Mode. The 33l4A output signal is alternate 1/2 cycles.
FREE RUN Mode. The 33l4A output signal is continuous or swept.
GATE Mode. The 3314A output signal is gated ON or OFF.
N CYCLE Mode. The 3314A output signal is a counted burst of "N" cycles.
8

HOW TO USE THE FREE RUN MODE
3
1
4o
500 FEEDTHRU TERMINATION {OptiOllllIl Not shown on BUC-
ceedlng drawings. Trigger from CluJnnel 2on the rising edge.
@
2
3
4
PRESET
FUNCTION
FREQ
AMPTD
OFFSET
SYM
{blue shlftl
FUNCTION
Sets the 3314A to Its basic operstlng state. This operating state Is very useful as
the common starting polnt for all operations.Note that FREE RUN is the active mode
sfter instrument preset.
Press this key to changa the function from Sine to Square to Triangle to Function
OFF and beck to SIne. Note
that DC OFFSET Is not affected by Function OFF.
Use the Modify knob and Ior Ikeys to cluJngs the valua of theso parameters. Note
that AMPTD and OFFSET ara completely independent paramaters end that variable
symmetry 18 not allowed for frequencies ~ 2MHz .
Function Invert Inverts
the outpUt signal. Note that DC OFFSET is not Inverted and
that the inversion is with respect to the SYNC output.
Free Run Summary
Functions:Sine, Square, Triangle, Function Off
Frequency: .001 Hz to 19.99MHz In 8ranges
Amplitude: .OOmVp-p to 10.00Vp-p In 4 renges
Offset :±. OOQ VDC to ±6.QOVDC In 2 rllnges
Symmetry : 5"" to 96'10 for frequencies < 2MHz
See waveforms 1through lOin the Waveform Ubrllry .
9

A 500 FeedthN Termination Is optional to reduce the sensittvlty of the oscilloscope's ZAxIs Input.
Trigger from Channel 2 on the rising edge. I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
©
©
o
@
When manuel sweep is ON, the output frequency Is lim it ed to frequencies between
the Start and Stop Frequenclas. The XAxis output tracks these changes. This mode
Is useful wh8f1 setting up plotters and other X,V displays.
When the EXT Trigger is selected. the BW&8P Is from Start Frequency to Stop Fre-
quency In this time. The 3314A wlll output the Start Frequency until another EXT
Trigger ill received.
ThIs parameter sets the sweep tlme interval.
The ZAxis output signal will Intensify the trace when the sweep frequency equals
the Marker Frequency.
When the lNT Trigger Is elected, the sweep is from Start Frequency to Stop Fre-
quency In this time. The sweep is repeated lifter the frequency resets. The reset time
Is approximately 101f1 of the sweep Intervel.
10
Theae two keys set the sweep limits. Note that chaoglng one parameter wnl C8US6
the other to change If the ratio of Stop Frequency to Start Frequency would be <1
or >tOO. The 331
4A will make the other pararneter'a light fillsh to alert you to thIs
automatic parameter change.-
Sets the 3314A to Its basic operating state. Thls operation state Is very useful as
the common starting point for all operations.Note that FREE RUN Ie the active mode
after instrument preset.
The 3314A's output frequency ia now Rnaarly sweeping from the Start Frequency to
the Stop Freqeuncv inthe time interval set by SW/TR INTVL.
!=flEQ
MKR
FREQ
STOP
FREQ
HOW TO USE THE FREE RUN MODE
(LINEAR SWEEPS)
MAN
SWEEP
SW/TR
INTVL
START
!=flEQ
SWEEP
PRESET
1
4
6
6
4
2
3

HOW TO USE THE FREE RUN MODE
(LINEAR SWEEPS) (cant)
Linear Sweep Summary
Stop Frequency mlnlt be ~ Start Frequency.
Stop Freq + Start Freq ratio is from 1 to 100 .
Sweep Intervalrenge is from 7.2Oms to 19999
Sweep Is repetltlva when tNT Trigger III selected .
Sweep started by the Trigger when EXT Trigger Is selected.
See Wavefonns 11 through 16 In the Waveform Ubrery.
11

See Wllvoforma 16 through 20 In the Waveform Ubrary.
Log Sweep Summary
@
Z AXIS INPUT
o
@ @
2
Trigger from Channel 2on the rising &dge.
The Z Axis output IIlgnal lntenslflell the trace when the Sweep Frequency Is equal to
the Marker Frequency.
Seta the 3314A to its basic operating state. ThIs operating state III very useful 811
the common starting point fOf an operations . Note that FREE RUN Is tha active mode
after instrument pc-eset.
Thla parameter seta the sweep time Interval axactfy all it was Implemented In Unear
SWHP except that the time fa now the time per decade.The lower limit is
40.Omsldecade.
Note that the Stop Frequency sets the number of decades swept. The mantlsla of
the Stop Frequency trackll the Stert Frequency.
12
The 3314A'S output frequency III now sweeping Iogerithmlcally from the Start
Frequency to the Stop Frequency In the time Interval eet by SWITA INTVL.
Setting the Start Frequency elso lists the mantissa of the Stop Frequency (Log
sweeps must be decade sweepsl. When the Start Frequency fa changed, the Stop
Frequency automatIcally tracka these changes. Note that the lower Stert Frequency
limit III .2ooHz.
HOW TO USE THE FREE RUN MODE
(LOG SWEEPS)
Stop Frequency must be greater than the Start Frequency.
Sweeps are decedes , only .1 decade to 7decades.
Start Frequency range: .200Hz to 1.999MHz .
Stop Frequency range: 2Hz to 19.99MHz.
Sweep Interval range: 40 .Oma to 19998 per decade.
SUp
by
PRESET
2(blue
shift)
SWEEP
3START
FREQ
4STOP
FREQ
,. 5SWITR
,INTVL
6MKR
FREQ

HOW TO USE THE GATE MODE
o
2
1
4
©@@
2
3
4
PRESET
GEN
SWfTR
INTVL
PHASE
Trigger from Chann&! 2 on the rising edge .
Presets the 3314A to e common mrtlng point.
ThIs key toggl&s the mode betwHn Free Run and Gate. The 3314A'. output will be
ON when the trigger leonI satisfies the slope and ttveshold conditions.
Sets the period of the Internal Trigger tnterval.The internal trigger signal has a 50%
duty cycle and the output is gated on for slightly > 1/2 of the TrltJger Interval.
Sets the start end atop phase of the gated signal. The output Is QlIted on Immedlete-
Iy after the trigger level Is true. The output Is gated off after the trigger level is felH
and the output algnal reaches the stop phase.
Gate Summary
Trigger Lev&! gatea on and off.
SWrrR INTVL: .002ms to 19998
Start/Stop Phatl8: -90
0
to + 90
0
Internal Trigg« Duty Cycle: slightly > 50'*'
Trigger light Indicates the presenca of a trigger
SYNC output Is also gated
See Waveforms 21 through 25 In the Waveform Ubrery.
13

@
o
@ @
3
Tligger from Channel 2 on the rlslng edge.
This parameter
sets the Trigger Interval (the time between sweep starts). The actual
time the output Is gated on Ithe sweep interval) Is -.9 of ths TrltJger Interval.
Gated Sweeps ara useful as
·ll6" -wlndow lng· signals with sampling Fourier type
spectrum analvzers, such as the -hp- 3582A . Se" -wlndowlng slgnsls are needed
when the analyzer's sampflng rate and the stimulus are unrelated.
ThIs key toggles
the mode between Free Run and Gate. The 3314A's output will be
ON
when the trigger level satisfies the slope and threshold conditions.
Presets the 3314A to a common starting point .
HOW TO USE THE GATE MODE
(GATED SWEEPS)
SWITR
INTVl
SWEEP
PRESET
GEN
1
2
4
14
2
3
SW/TR INTVl:7.2Oms to 1999s
Start/Stop Phase: not meaningful
Internal Trigger Duty Cycle:- 90%
Gated Log Sweeps are not allowed.
Trigger Ught indicates the presence of a trigger
SYNC output Is also gated
See Waveforms 26 through 30 In the Waveform Ubrary.
Gated Sweep Summary