Wavetek 395 User Manual
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USER’S HANDBOOK
Model 395
100 MHz Synthesized
Arbitrary Waveform Generator
USER'S HANDBOOK
for
THE MODEL 395
100MHz Synthesized
Arbitrary Waveform Generator
Part no. 850325 Issue 1.0 (April 2000)
ISO 9002
CERTIFICATE
No. FM 29700
For any assistance contact your nearest Wavetek-Datron Sales and Service Center.
Addresses can be found at the back of this handbook.
© 2000 Fluke Precision Measurement Ltd.
is a registered trademark of Fluke Precision Measurement Ltd.
WARRANTY
Wavetek-Datron warrants that all products manufactured by Wavetek-Datron conform to published Wavetek-Datron
specifications and are free from defects in materials and workmanship for a period of one (1) year from the date of
delivery when used under normal operating conditions and within the service conditions for which they were furnished.
The obligation of Wavetek-Datron arising from a Warranty claim shall be limited to repairing, or at its option, replacing
without charge, any product which in Wavetek-Datron’s sole opinion proves to be defective within the scope of the
Warranty. In the event Wavetek-Datron is not able to modify, repair or replace non-conforming defective parts or
components to a condition as warranted within a reasonable time after receipt thereof, Buyers shall be credited for their
value at the original purchase price.
Wavetek-Datron must be notified in writing of the defect or nonconformity within the Warranty period and the affected
product returned to Wavetek-Datron’s factory or to an authorized service center within thirty (30) days after discovery
of such defect or nonconformity.
For product warranties requiring return to Wavetek-Datron, products must be returned to a service facility designated
by Wavetek-Datron. Buyer shall prepay shipping charges, taxes, duties and insurance for products returned to WavetekDatron for warranty service. Except for products returned to Buyer from another country, Wavetek-Datron shall pay
for return of products to Buyer.
Wavetek-Datron shall have no responsibility hereunder for any defect or damage caused by improper storage, improper
installation, unauthorized modification, misuse, neglect, inadequate maintenance, accident or for any product which
has been repaired or altered by anyone other than Wavetek-Datron or its authorized representative and not in accordance
with instructions furnished by Wavetek-Datron.
Exclusion of Other Warranties
The Warranty described above is Buyer’s sole and exclusive remedy and no other warranty, whether written
or oral, is expressed or implied. Wavetek-Datron specifically disclaims the implied warranties of merchantability
and fitness for a particular purpose. No statement, representation, agreement, or understanding, oral or written, made
by an agent, distributor, representative, or employee of Wavetek-Datron, which is not contained in the foregoing
Warranty will be binding upon Wavetek-Datron, unless made in writing and executed by an authorized WavetekDatron employee. Under no circumstances shall Wavetek-Datron be liable for any direct, indirect, special,
incidental, or consequential damages, expenses, losses or delays (including loss of profits) based on contact, tort,
or any other legal theory.
EC Declaration of Conformity
WE:
Wavetek-Datron
Hurricane Way
Norwich, NR6 6JB
United Kingdom
Declare under sole responsibility that the
Model 395 100MHz Synthesized Arbitary Waveform Generator
meets the intent of Directive 89/336/EEC for Electromagnetic Compatibility and Low
Voltage Directive 72/23/EEC for Product Safety. Compliance was demonstrated to the
following specifications as listed in the Official Journal of the European Communities:
EMC Directive 89/336/EEC (rev 91/263/EEC. 92/31/EEC. 93/68/EEC):
EN 50081 - 1 Emissions:
EN 55011/22 Class A radiated and conducted emissions
EN 50082 - 1 Immunity:
IEC 801 - 2 Electrostatic discharge immunity
IEC 801 - 3 RF electromagnetic field immunity
IEC 801 - 4 Electrical fast transient / burst immunity
IEC 801 - 5 Power line surge immunity
Low Voltage Directive 73/23/EEC (rev 93/68/EEC):
EN 61010 - I Safety requirements for electrical equipment for measurement,
control and laboratory use.
Contents
SAFETY ISSUES
READ THIS ENTIRE SECTION THOROUGHLY BEFORE ATTEMPTING TO INSTALL, OPERATE OR
SERVICE THE MODEL 395 100MHz SYNTHESIZED ARBITRARY WAVEFORM GENERATOR ix
Section 1 Introduction
1.1 THE MODEL 395...................................................................................1-1
1.2 ORGANIZATION OF THIS MANUAL.................................................... 1-2
Section 2 Initial Preparation
2.1 THIS SECTION......................................................................................2-1
2.2 RECEIVING AND INSPECTING SHIPMENTS..................................... 2-1
2.3 RETURNING EQUIPMENT FOR REPAIR............................................ 2-1
2.4 PREPARATION FOR STORAGE OR SHIPMENT ............................... 2-2
2.5 LINE VOLTAGES AND FUSES ............................................................ 2-2
2.6 INITIAL TURN–ON ................................................................................2-4
2.7 ERROR MESSAGES ............................................................................2-5
2.8 FUNCTIONAL CHECKOUT .................................................................. 2-5
Continuous Mode Check........................................................................ 2-5
Sweep Mode Check ...............................................................................2-5
Gated Mode Check ................................................................................2-5
Triggered Mode Check...........................................................................2-6
2.9 OPERATOR MAINTENANCE ............................................................... 2-6
2.9.1 Routine Maintenance ...................................................................2-6
2.9.2 Battery Replacement ...................................................................2-7
2.10 RACK MOUNTING EARS ................................................................... 2-7
2.11 REMOTE SETUP ................................................................................2-7
2.11.1 RS-232 .......................................................................................2-7
2.11.2 IEEE-488 (Option 001).............................................................. 2-10
Section 3 Introduction To The Model 395
3.1 OVERVIEW OF THE MODEL 395 ........................................................ 3-1
Using the Model 395 ..............................................................................3-1
3.2 NAVIGATING THE SCREENS.............................................................. 3-1
3.2.1 Front Panel Keys and Screens ..................................................... 3-1
3.2.2 Softkeys .......................................................................................3-2
3.2.3 Extended Screens........................................................................3-2
3.2.4 Changing Numeric Values ........................................................... 3-3
3.2.5 Correcting Mistakes ..................................................................... 3-4
3.3 ON-SCREEN HELP................................................................................3-4
3.4 ERROR MESSAGES ............................................................................3-5
3.5 INITIAL SETUP......................................................................................3-5
3.6 MODEL 395 AS A FUNCTION GENERATOR...................................... 3-6
Example 1. Setting Up the Function Generator ............................. 3-6
3.7 MODEL 395 AS AN ARBITRARY WAVEFORM GENERATOR............3-10
Example 2 Creating an Arbitrary Waveform Using Line Draw ........3-11
Example 3 Generating the Arb Waveform....................................... 3-14
Example 4. Creating an Arb Waveform Using Waveform Insert .....3-17
Example 5. Creating an Arbitrary Waveform Using Point Edit ........3-19
3.8 THE MODEL 395 AS A WAVEFORM SEQUENCE GENERATOR.......3-22
Example 6 Creating a Waveform Sequence .................................. 3-22
3.9 STORING AND RECALLING SETUPS................................................. 3-24
Example 7. Storing and Recalling an Instrument Setup .................3-24
3.10 THE MODEL 395 AS A SWEEP GENERATOR ................................. 3-25
Example 8. Setting up the Sweep Generator................................. 3-25
Contents v
3.11 THE MODEL 395 AS A TRIGGER GENERATOR.............................. 3-27
Example 9 Setting up the Triggered Generator............................... 3-27
3.12 THE MODEL 395 AS A PULSE GENERATOR .................................. 3-31
Example 10 Setting up the Pulse Waveform.................................. 3-31
Example 11 Setting up the Pulse Train Waveform ......................... 3-34
3.13 THE MODEL 395 AS A NOISE GENERATOR ................................... 3-43
Example 12 Setting Up the Signal To Noise Waveform ................. 3-43
3.14 THE MODEL 395 AS AN AMPLITUDE MODULATION SIGNAL
SOURCE .......................................................................................3-46
Example 13 Setting Up Amplitude Modulation............................... 3-46
3.15 THE MODEL 395 SUMMING INPUT ................................................. 3-48
Example 14. Setting Up Summing Input ........................................ 3-48
Section 4 Front Panel Operation Reference
4.1 INTRODUCTION ....................................................................................4-1
4.2 FRONT PANEL.......................................................................................4-1
4.3 REAR PANEL ........................................................................................4-9
4.4 REFERENCE..........................................................................................4-11
4.4.1 Amplitude ......................................................................................4-11
4.4.2 AM In (amplitude modulation And SCM) ..................................... 4-14
4.4.3 Arbitrary Waveforms .................................................................... 4-16
4.4.3.1 Introduction..........................................................................4-16
4.4.3.2 Creating Waveforms............................................................ 4-17
4.4.3.3 Create From Copy .............................................................. 4-18
4.4.3.4 Modifying Waveforms......................................................... 4-19
4.4.4 Filter ..............................................................................................4-29
4.4.4.1 Introduction..........................................................................4-29
4.4.4.2 Mode...................................................................................4-29
4.4.4.3 Filter....................................................................................4-30
4.4.5 Frequency ....................................................................................4-30
4.4.5.1 Standard Waveform Frequency ......................................... 4-30
4.4.5.2 Standard Waveform Period ................................................ 4-30
4.4.5.3 Arbitrary Waveforms - Frequency / Period ......................... 4-31
4.4.5.4 Sequence - Frequency/Period............................................ 4-31
4.4.5.5 Pulse / Pulse Train Period................................................... 4-31
4.4.5.6 Noise Clock ........................................................................ 4-31
4.4.6 MODE .................................................................................................4-32
4.4.7 OFFSET..............................................................................................4-34
4.4.8 REMOTE ............................................................................................4-35
4.4.9 RESET................................................................................................4-36
4.4.10 SEQUENCE......................................................................................4-37
4.4.11 SETUPS ............................................................................................4-40
4.4.12 STANDARD WAVEFORMS ............................................................. 4-41
4.4.12.1 Introduction........................................................................ 4-41
4.4.12.2 Sine...................................................................................4-42
4.4.12.3 Square .............................................................................. 4-42
4.4.12.4 Triangle............................................................................. 4-42
4.4.12.5 DC.....................................................................................4-42
4.4.12.6 Positive Ramp .................................................................. 4-43
4.4.12. 7 Negative Ramp................................................................ 4-43
4.4.12.8 Sin(x)/x.............................................................................. 4-43
4.4.12.9 Positive Haversine............................................................ 4-43
4.4.12.10 Negative Haversine ........................................................ 4-43
4.4.12.11 Pulse............................................................................... 4-43
4.4.12.12 Pulse Train...................................................................... 4-46
4.4.12.13 Digital Noise ................................................................... 4-51
4.4.12.14 Analog Noise (White Analog Noise) ............................... 4-52
vi Contents
4.4.12.15 Comb .............................................................................. 4-55
4.4.12.16 Signal Plus Noise ........................................................... 4-57
4.4.12.17 Signal Plus Comb............................................................ 4-60
4.4.12.18 AM / SCM ....................................................................... 4-63
4.4.12.19 FM...................................................................................4-65
4.4.12.20 Arb Waveforms ............................................................... 4-66
4.4.12.21 Sequence ....................................................................... 4-66
4.4.13 Status .........................................................................................4-67
4.4.14 Sum in ........................................................................................4-68
4.4.15 Sweep ........................................................................................4-69
4.4.16 Sync Out ....................................................................................4-74
4.4.17 Trigger ........................................................................................4-76
4.4.18 Utility...........................................................................................4-77
4.4.19 Ref In / Ref Out .......................................................................... 4-79
Section 5 Remote Operation
5.1 INTRODUCTION ...................................................................................5-1
5.2 SCPI PRIMER .......................................................................................5-2
5.2.1 Parameters...................................................................................5-3
5.2.2 Queries.........................................................................................5-4
5.2.3 SCPI Punctuation and Syntax...................................................... 5-4
5.2.4 Condensed Rules:........................................................................ 5-4
5.2.5 Text Symbols ...............................................................................5-5
5.2.6 Example Command Tree .............................................................5-6
5.2.7 Example Command Table ...........................................................5-8
5.2.8 Example Command Syntax Diagrams......................................... 5-8
5.3 REMOTE RS-232 SETUP ..................................................................... 5-11
5.3.1 Hardware Setup ...........................................................................5-11
5.3.2 Instrument Setup..........................................................................5-11
5.4 IEEE-488.1 (GPIB) SETUP ................................................................... 5-12
5.4.1 Hardware Setup ...........................................................................5-12
5.4.2 Instrument Setup..........................................................................5-12
5.5 SCPI PROGRAMMING EXAMPLES..................................................... 5-13
5.5.1 Model 395 As a Function Generator............................................ 5-14
Example 1. Setting Up the Function Generator ............................. 5-14
5.5.2 Model 395 as an Arbitrary Waveform Generator......................... 5-15
Example 2 Creating an Arbitrary Waveform Using Line Draw ........5-15
Example 3 Running the Arb Waveform .......................................... 5-16
Example 4. Creating an Arb Waveform Using Waveform Insert .....5-17
Example 5. Creating an Arbitrary Waveform Using Point Edit ........5-17
5.5.3 The Model 395 as a Waveform Sequence Generator ................. 5-19
Example 6 Creating a Waveform Sequence .................................. 5-19
5.5.4 Storing and Recalling Setups....................................................... 5-20
Example 7. Storing and Recalling an Instrument Setup .................5-20
5.5.5 The Model 395 As a Sweep Generator ....................................... 5-20
Example 8. Setting up the Sweep Generator................................. 5-20
5.5.6 The Model 395 as a Trigger Generator ....................................... 5-21
Example 9 Setting up the Triggered Generator............................... 5-21
5.5.7 The Model 395 as a Pulse Generator.......................................... 5-22
Example 10 Setting up the Pulse Waveform.................................. 5-22
Example 11 Setting up the Pulse Train Waveform ......................... 5-22
5.5.8 The Model 395 as a Noise Generator.......................................... 5-24
Example 12 Setting Up the Signal To Noise Waveform ................. 5-24
5.5.9 The Model 395 as an Amplitude Modulation Signal Source.........5-24
Example 13 Setting Up Amplitude Modulation............................... 5-24
5.5.10 The Model 395 and its Summing Input ...................................... 5-25
Example 14. Setting Up Summing Input ........................................ 5-25
Contents vii
5.6 SCPI COMMANDS................................................................................5-27
5.6.1 ABORT ...............................................................................................5-27
5.6.2 CALibration ..................................................................................5-27
5.6.3 DISPlaY........................................................................................5-28
5.6.4 INITiate.........................................................................................5-29
5.6.5 MMEMory.....................................................................................5-29
5.6.6 OUTPut ........................................................................................5-31
5.6.7 RESet...........................................................................................5-32
5.6.8 [SOURce] .....................................................................................5-33
5.6.9 STATus ........................................................................................5-44
5.6.10 SYSTem.....................................................................................5-45
5.6.11 TEST ..........................................................................................5-45
5.6.12 TRACe .......................................................................................5-46
5.5.12 TRIGger .....................................................................................5-48
5.7 IEEE 488.2 COMMON COMMANDS .................................................... 5-50
5.8 HIGH SPEED BINARY WAVEFORM TRANSFER ............................... 5-51
5.9 RS-232-C PROGRAMMING.................................................................. 5-53
5.10 GPIB ERROR HANDLING AND STATUS REPORTING.................... 5-53
5.11 RESUMING LOCAL OPERATION ...................................................... 5-58
Appendix A Specifications
Appendix B Menu - Quick Reference
Appendix C SCPI Command - Quick Reference
Appendix D Rack Ears Kit Installation
Appendix E Information/Error Messages
Appendix F DSO Upload
Appendix G Performance Verification and Alignment Procedures
viii Contents
SAFETY ISSUES
READ THIS ENTIRE SECTION THOROUGHLY BEFORE ATTEMPTING TO INSTALL, OPERATE OR SERVICE THE MODEL 395
General Safety Summary
This instrument has been designed and tested in accordance with the British and European standard publication
EN61010: 1993/A2: 1995, and has been supplied in a safe condition.
This manual contains information and warnings that must be observed to keep the instrument in a safe condition and
ensure safe operation. Operation or service in conditions, or in a manner other than specified could compromise safety.
For the correct and safe use of this instrument it is essential that both operating and service personnel follow generally
accepted safety procedures in addition to the safety precautions specified.
To avoid injury or fire hazard the instrument should not be switched on if it is damaged or suspected faulty, and it should
not be used under damp, wet, condensing, dusty or explosive gas conditions.
Whenever it is likely that safety-protection has been impaired, the instrument must be made inoperative and be secured
against any unintended operation. Qualified maintenance or repair personnel should be informed. Safety-protection is
likely to be impaired if, for, example the instrument shows visible damage or fails to operate normally.
Explanation of safety related symbols and terms
DANGER
Risk of Electric Shock The product is marked with this symbol to indicate that
hazardous voltage (> 30V dc or ac pk) may be present.
CAUTION
Refer to accompanying documents The product is marked with this symbol when it is necessary
for the user to refer to the instruction manual.
Earth (Ground) Terminal Functional Earth (Ground) only, must not be used as a
Protective Earth.
WARNING Warning statements identify conditions or practices that could result in injury or loss of life
CAUTION Caution statements identify conditions or practices that could result in damage to this or other
property.
WARNING
THIS INSTRUMENT CAN DELIVER A LETHAL ELECTRIC SHOCK. NEVER TOUCH ANY LEAD OR
TERMINAL UNLESS YOU ARE ABSOLUTELY CERTAIN THAT NO DANGEROUS VOLTAGE IS PRESENT.
ix
Protective Earth (or Grounding)
Protection Class 1 - The instrument must be operated with a Protective Earth /Ground connected via the Protective
Earth/Grounding conductor of the supply cable.
This is connected to the instrument before the line and neutral connections when the supply plug is inserted into the
socket on the back of the instrument. If the final connection to the supply is made elsewhere, ensure that the ground
connection is made before line and neutral.
WARNING Any interruption of the protective ground conductor inside or outside the instrument is
likely to make the instrument dangerous. Intentional interruption is prohibited.
To avoid electric shock the signal connections to the instrument should be connected after the ground connection is
made and disconnected before the ground connection is removed, i.e. the supply lead must be connected whenever
signal leads are connected.
Do Not Operate without Covers
To avoid electric shock or fire hazard, the instrument must not be operated with covers removed. The covers protect
the user from live parts and unless otherwise stated they should be removed only by suitably qualified personnel for
maintenance and repair purposes.
WARNING Removing the covers may expose voltages in excess of l.5 kV pk; these may be present for
up to one minute after the instrument has been disconnected from the power source; longer
under fault conditions.
Safe Operating Conditions
The unit must be operated only within the manufacturers specified operating conditions. Examples of specification that
must be considered are:
Ambient temperature
Ambient humidity
Power supply voltage and frequency
Maximum terminal voltages or currents
Altitude
Ambient pollution level
Exposure to shock and vibration
To avoid electric shock or fire hazard, do not apply to or subject the instrument to any condition that is outside specified
range. Please refer to Appendix A of this manual for detailed Specification of the instrument and its operating
conditions.
CAUTION
Direct sunlight, radiators and other heat sources should be taken into account when
assessing the ambient temperature.
CAUTION
Before connecting the instrument to the supply, ensure that the rear panel AC supply voltage
selector is set to the appropriate voltage, either 115V or 230V and that correctly rated fuses
are fitted (see below)
Fuse Requirements
To avoid fire hazard the fuse arrangement shown in the table below must be followed. Additionally the supply network
must be fused at a maximum of 16 A and in the UK, a 5 A fuse should be fitted in the power cord plug.
x
Power Input Fuse
Supply (Line)
Voltage
115 VAC
Fuse Action
T
Time delay
T
Time delay
Fuse Rating
UL/CSA
1 A
500 mA230 VAC
Wavetek-Datron
Part No.
2400-05-0029
2400-05-0010
Manufacturer
& Type No.
BUSSMAN MDL 1
BUSSMAN MDL 1/2
The Power Cord and Power Supply Disconnection
The power supply disconnect device is the ON / OFF switch on the rear panel of the instrument. The ON / OFF switch
should be readily accessible whilst the instrument is in operation. If this operating condition cannot be satisfied, it is
essential that either the power cord plug or a separate power disconnecting device be readily reached and accessible
to the operator.
To avoid electric shock and fire hazard, ensure that the power cord is not damaged and is adequately rated against power
supply network fusing. If the power plug is to be the accessible disconnecting device, the cord must not be longer than
3 metres.
Connection to Instrument Terminals
Ensure that the instrument is correctly Earthed (Grounded) via its power cord before and whilst any other connection
is made.
Installation Category I
Measurement and/or guard terminals are designed for connection at Installation (Over voltage) Category I. To avoid
electric shock or fire hazard the instrument terminals must not be connected directly to the mains power supply or any
other source of voltage or current that might temporarily exceed the peak ratings of the instrument
WARNING To avoid injury or loss of life, do not connect or disconnect signal leads while they are
connected, or suspected of being, connected to a hazardous voltage or current source
(internal or external to the instrument).
Maintenance and Repair
Local or national safety regulations and rules for the prevention of accidents and hazard must be observed in all work
performed. The unit must be disconnected from all signal sources and then the power supply before the removal of
covers. Any adjustment, parts replacement, maintenance or repair should be carried out only by authorised WavetekDatron technical personnel.
WARNING For continued protection against injury and fire hazard it is essential that only manufacturer
supplied parts be used to replace parts relevant to safety. Safety tests must be performed
after the replacement of parts relevant to safety.
Ventilation and Dust
The instrument relies on forced air cooling via a fan and ventilation slots. Adequate ventilation can usually be achieved
by positioning on a level surface and by leaving a 75 mm (3" gap) around the instrument. Care should be taken to avoid
restricting the airflow to or from the fan at the rear/sides of the instrument as damage may result from overheating.
Cleaning
Ensure the instrument signal and then power leads are disconnected prior to cleaning. Use only a damp, lint free cloth
to clean facia and case parts.
Observe any additional safety instructions or warnings given in this manual.
xi
100 MHz Synthesized Arbitrary Waveform Generator model 395
987
4 5 6
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3
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Model 395, 100 MHz Synthesized Arbitrary Waveform Generator
Introduction
1.1 THE MODEL 395
Section 1
Wavetek-Datron’s Model 395 100-MHz synthesized arbitrary waveform
generator delivers high-speed performance in both bench-top
and ATE applications. The Model 395 combines the capabilities of a synthesized
arbitrary waveform generator, synthesized function generator, pulse generator, noise
generator, sweep generator, and trigger generator. As a modulation source, the Model
395 provides real-time AM and SCM, and synthesized AM, SCM and FM.
The Model 395’s 1mHz to 100 MHz clock generates arbitrary (user-defined) waveforms
with 12 bits of vertical resolution (4096 points: -2048 to +2047) and up to 256K points
of horizontal memory for simulating “real-world” non-standard signals. At clock rates
of 50 MHz or below, Model 395 uses direct digital synthesis (DDS) that provides highfrequency resolution (up to 10 digits). Model 395 is an excellent signal source for a wide
range of applications, including in-circuit testing of semiconductors, communication
testing requiring complex pulse patterns, and performance characterization testing of
electrical devices.
Create arbitrary waveforms using the Model 395’s front panel by using point-by-point,
copy, or line edit modes. Also, use the RS-232 interface or optional GPIB (IEEE-488.2,
SCPI compatible) interface to upload waveforms. Wavetek-Datron’s WaveForm DSP
software tool makes waveform creation, modification, and uploading easy over the
GPIB interface. The Direct DSO Upload, part of Option 001 IEEE-488 Interface, allows
transfer of waveforms captured with a digital storage oscilloscope directly into the
Model 395.
Another capability, Sequence, allows up to four waveforms to be linked in a sequence
with advancement from one waveform to the next conditional upon waveform repeat
(loop) counts and trigger signals.
In addition to complex arbitrary waveforms, Model 395 provides a number of synthesized
standard waveforms including sine waves to 40 MHz, square waves to 50 MHz, and
triangle waves to 10 MHz.
The built-in pulse generator generates pulses with programmable parameters that
include rate, width, delay, and rise/fall times. Pulse train allows you to create a series of
up to 10 independently programmable pulses each with their own level, width, delay,
rise/fall times.
Noise functions provide analog noise, digital noise, signal-plus-noise, comb, and combplus-noise.
Sweep allows frequency sweeps from 1mHz to 20 MHz in one continuous band and
include seven sweep modes, as well as linear or logarithmic spacing.
The Model 395 allows real-time AM and SCM modulation of both standard and arbitrary
waveforms.
For non-continuous operation, the Model 395 provides triggered and gated modes.
Triggered mode includes programmable burst counts from 1 to 1,048,575 counts.
Trigger sources include an internal trigger rate generator, manual trigger key, trigger
input BNC, and remote trigger command.
Model 395 is designed to provide an MTBF in excess of 10,000 hours, thus the Model
395 is extremely reliable. The easy-to-use calibration procedure can be performed
entirely from the front panel in less than fifteen minutes without removing the instrument
cover.
Introduction 1-1
1.2 ORGANIZATION OF THIS MANUAL
Installation and Preparation For Use
Section 2 tells you how to set up and check out the Model 395 before you use it. It also
familiarizes you with the physical setup of the unit.
Introduction To The Model 395
Section 3 describes the fundamentals of front panel operation using a series of examples.
Operation Reference
Section 4 provides detailed explanations for every function and feature of the Model 395.
Remote Operation
Section 5 provides an introduction to the set up and operation of the Model 395 from
remote sources using the standard RS-232 or optional IEEE–488.2 interfaces. It also
contains the Model 395’s SCPI remote command set and IEEE-488.2 Common
Commands.
Specifications
Appendix A, located at the rear of this manual, contains the detailed specifications for
the Model 395.
Menu Quick Reference
Appendix B contains quick reference diagrams of the Model 395’s menu structure.
SCPI Quick Reference
Appendix C contains quick reference diagrams of the Model 395’s SCPI command tree.
The SCPI information is presented as a “Primer”. This appendix also contains the SCPI
required Conformance Information.
Rack Adapter Instructions
Appendix D contains instructions for mounting the Model 395 in an instrument rack.
DSO Upload
Appendix F contains instructions on DSO uploading to the Model 395. Plus, appendix
F describes how to create and load DSO driver files for DSOs not included in the unit’s
firmware.
Verification and Alignment Procedures
Appendix G contains both the verification test procedure and alignment procedure for
the Model 395.
1-2 Introduction
Initial Preparation
2.1 THIS SECTION
This section contains:
Receiving and Inspecting Shipments;
Returning Equipment For Repair;
Preparation For Storage or Shipment;
Preparation For Use;
Initial Turn on;
Functional Checkout;
Routine Maintenance.
2.2 RECEIVING AND INSPECTING SHIPMENTS
Use the following steps to inspect a shipment of Wavetek-Datron equipment.
1. Inspect the shipment. If the shipment is damaged have the driver describe the box
damage and list shortages on the delivery bill.
If you find unreported shortages or damage, notify the shipper before further
unpacking.
2. After unpacking the boxes. Save all of the packing material.
Section 2
3. Inspect the equipment for damage. Inspect it carefully, regardless of the
condition of the shipping boxes.
4. If necessary, file a damage claim. If any damage is found, call the shipper within
10 days and start the claim process.
5. Call Wavetek-Datron. Call Wavetek-Datron’s Customer Service department
and tell them that the equipment arrived damaged.
2.3 RETURNING EQUIPMENT FOR REPAIR
Use the following steps if you should ever need to return the Model 395 to WavetekDatron for repair.
1. Save the packing material. Always return the equipment to Wavetek-Datron in
its original packing material and boxes. If you use inadequate packing material,
you will have to pay to repair any shipping damage. Carriers will not pay claims
on incorrectly packed equipment.
2. Call Wavetek-Datron for a Return Authorization. Wavetek-Datron’s customer
service representative will ask for the name of the person returning the equipment.
Plus, the representative will ask for your telephone number, company name,
equipment type and serial number, and a description of the problem.
Initial Preparation 2-1
2.4 PREPARATION FOR STORAGE, SHIPMENT OR OPERATION
Packaging
If possible, always use the original shipping container. However, when using packing
materials other than the original, use the following guidelines:
Wrap the Model 395 in plastic packing material.
Use a double-walled cardboard shipping container.
Protect all sides with shock absorbing material (minimum of 2 inch thick
material) to prevent movement of the Model 395 within the container.
Seal the shipping container with approved sealing tape.
Mark “FRAGILE” on all sides, top, and bottom of the shipping container.
Storage
The Model 395 should be stored in a clean, dry environment. In high humidity
environments, protect the Model 395 from temperature variations that could cause
internal condensation. The following environmental conditions apply to both shipping
and storage;
Temperature –20°C to +70°C
Relative Humidity (sea level) Less than 95% at 11°C to +30°C.
Altitude Less 15,000 feet (4570 meters).
Vibration Less than 2g.
Shock Less than 40g.
Operation
The Model 395 should be operated on a flat surface or in an equipment rack within its
envoronmental specifications. All air vents should be clear of obstructions.
Signal connections should not be made to external hazardous voltages.
WARNING
THIS INSTRUMENT CAN DELIVER A LETHAL ELECTRIC SHOCK. NEVER
TOUCH ANY LEAD OR TERMINAL UNLESS YOU ARE FIRST
ABSOLUTELY CERTAIN THAT NO DANGEROUS VOLTAGE IS PRESENT.
SEE THE SAFETY ISSUES SECTION AT THE FRONT OF THIS MANUAL.
2.5 LINE VOLTAGES AND FUSES
The Model 395 accepts a primary input voltage of either 90 to 132 Vac or 198 to 252
Vac, 50/60 Hz. Wavetek-Datron ships the Model 395 set for the line voltage and with
the proper fuse for the destination country. Figure 2-1 illustrates the location of the line
voltage switch and fuse holder.
2-2 Initial Preparation
Fuse Holder
Remove
Install
230 115
Line Voltage
Selector
Power Connector
Figure 2-1. Line Voltage Switch and Fuse Holder
To change the line voltage, disconnect the power cord from the Model 395. Slide the
Line Voltage Selector (figure 2-1) to the desired line voltage: left for 230VAC, and right
for 115VAC. Refer to table 2-1 for voltage ranges for each voltage position. Also check
that the fuse is the correct rating; see the following procedure.
To change the fuse, perform the following steps:
1. Disconnect the power cord from the instrument. Remove the fuse from the fuse
holder.
Table 2-1. Line Voltage and Fuse Selection
Supply (Line)
Voltage
115 VAC
230 VAC
Fuse Action
T
Time delay
Fuse Rating
UL/CSA
1 A
Wavetek-Datron
Part No.
2400-05-0029
Manufacturer
& Type No.
BUSSMAN MDL 1
T
Time delay
2. Compare the ampere rating on the fuse to the ampere ratings given in table 2-1.
If the fuse is blown, replace it by sliding the new fuse back into the fuse holder.
If the fuse is not blown and has the right rating, keep it. If the fuse has the wrong
rating, place the new fuse into the fuse holder.
3. Connect the ac line cord supplied to the power connector at the rear of the unit
and power source.
CAUTION IN THE EVENT OF FAILURE OF ANY FUSE, CONTACT
500 mA
THE SERVICE CENTER IMMEDIATELY. SEE THE SAFETY
ISSUES SECTION AT THE FRONT OF THIS MANUAL.
2400-05-0010
BUSSMAN MDL 1/2
Initial Preparation 2-3
2.6 INITIAL TURN–ON
WARNING
The Model 395 is equipped with a three-wire power cable. When
connected to a grounded AC power receptacle, this cable grounds the
instrument. Do not use extension cords or AC adapters without a
ground.
1. Connect the power cable supplied to the power connector on the Model 395 rear
panel; see figure 2-2.
Power Connector
Figure 2-2. Power Connector
WARNING
ANY INTERRUPTION OF THE PROTECTIVE EARTH/GROUND
CONDUCTOR INSIDE OR OUTSIDE THE INSTRUMENT IS LIKELY
TO MAKE THE INSTRUMENT DANGEROUS. SEE THE SAFETY
ISSUES SECTION AT THE FRONT OF THIS MANUAL.
2. Press the “POWER” On/Off switch in to turn the unit on (figure 2-3).
2-4 Initial Preparation
Figure 2-3. Power Switch
2.7 ERROR MESSAGES
Some front panel entries may cause error or information messages to appear on the
display.
2.8 FUNCTIONAL CHECKOUT
The functional checkout provides a quick method of verifying the Model 395 operation.
The only test equipment required is an oscilloscope (Tektronix 2445 - dual channel or
equivalent), and the appropriate cables and loads.
Continuous Mode Check
1. Connect the Model 395 to the primary power source. Leave all cables
disconnected. See Initial Turn-On in this section.
2. Turn on the Model 395 by pushing in the POWER switch.
At power on, the Model 395 displays its start up screen (figure 2-4).
Wavetek
Model 395
(for assistance,
press HELP)
3. Press the RESET key, and from the Instrument Reset screen press F3 to reset all
parameters. Then press F8 to confirm reset.
4. Press the MAIN OUT key to turn on the Main Output. Main Out indicator
remains on.
5. Press the SYNC OUT key. From the Sync Output Setup screen, press F2 twice
to turn the Sync Output on (“output: on”).
Observe: Scope displays a 1Vp sine wave at 1kHz (Main Out must be terminated
into 50Ω).
Sweep Mode Check
Press the MODE key. From the Mode screen, press F2 “sweep.”
Observe: Scope displays a sweep of the frequency from 1kHz to 10 kHz.
Gated Mode Check
Press the MODE key. From the Mode screen, press F3 “gated.” Press the
STANDARD key, and then rotate the knob; select the softkey to select
“triangle.”
This check uses the Model 395’s internal trigger source which is programmed
to 5 ms.
Observe: Scope displays a gated waveform; see below:
Figure 2-4. Model 395 Start Up Screen
1ms
5ms
Initial Preparation 2-5
Triggered Mode Check
Press the MODE key. From the Mode screen, press F4 “trig’d.”
This check uses the Model 395’s internal trigger source which is programmed to
5 ms.
Observe: Scope displays a triggered waveform with a count of 1; see below:
This completes the functional test. Remove all cables and test equipment.
2.9 OPERATOR MAINTENANCE
2.9.1 Routine Maintenance
No tools or equipment are required for routine maintenance. Cleaning materials
required are listed below:
Description National Stock Number
Cotton Cheesecloth 8305-00-267-3015
Mild Liquid Detergent None
Routine maintenance for the Model 395 is limited to routine tasks such as listed below;
Cleaning, using cloth moistened with detergent
Dusting,
Wiping,
Checking for frayed cables,
Storing items not in use,
Covering unused receptacle,
Checking for loose screws.
Perform these routine tasks as required.
5ms
CCC-C-440, Type II,
Class 2 (81349)
2-6 Initial Preparation
2.9.2 Battery Replacement
The Model 395 contains an internal battery for the unit’s internal memory. Its replacement
should only be carried out by a suitably qualified technician. Measure the battery voltage
when performing calibration of the unit (approximately every 12 months); refer to
paragraph 4.3, figure 4-7 and table 4-6 item 6. The battery should measure between +3.2
Vdc and +2.7 Vdc. Replace the battery when it measures +2.7 Vdc or below to avoid
loosing Arb waveforms, stored settings, “last setup,” and all remote setup parameters.
This instrument uses an internal battery containing more than 0.2
grams of Lithium. Do not charge or short this battery. A hazard of
explosion and or contamination exists.
CAUTION Always replace the battery with one of the same type: Panasonic BR-
2/3A
To replace the battery. This task should only be undertaken by a suitably qualified
technician.
1. Turn off the Power and disconnect the power cable.
2. Remove the two screws; one on each side of the cover.
3. Slide the cover back.
4. Remove the battery.
5. Remember, removing the battery will loose Arb waveforms, stored settings,
“last setup," and all remote setup parameters.
6. Install the new battery. Be sure to match the polarity on the battery with the
polarity indicator on the battery holder.
WARNING
2.10 RACK MOUNTING EARS
The Model 395 can be rack mounted using the optional mounting ears (Option 004).
Installation instructions are in appendix D of this manual.
2.11 REMOTE SETUP
2.11.1 RS-232
To connect the Model 395 to a computer via RS-232, use the provided RS-232 cable. For
information on RS-232 remote programming, refer to section 5 of this manual. Note that
the 0 V connection on the RS–232 connector is internally connected to the floating
analog common and not ground.
RS-232
Connector
CAL ENABLE
RS-232
NORM - CAL
Cal Sticker
Figure 2-5. RS-232-C Connector
BATTERY
TEST
BAT GND
Initial Preparation 2-7
Standard RS-232 Connection
The Model 395 is configured as a DCE , and uses a 9-pin female connector (DB-9). The
standard connection will be to a DTE ( generally a computer) with a standard 9-pin male
connector (DB-9). This connection can be made using the 9-pin female to 9-pin male
cable (P/N 6001-00-0061) included with the Model 395. If the DTE uses a male DB-25,
the connection can be made using the 25-pin female to 9-pin male adapter (P/N 210002-0328 ) included with the Model 395. After connections are made, both the Model 395
and the DTE must be configured to have the same baud rate and data format. The data
format for the model 395 is 8-bits, no parity, one stop bit. Refer to section 5.3 for the
Model 395 RS-232 setup.
Non-Standard RS-232 Connection
Because the Model 395 is configured as a DCE, connection to a device configured other
than a standard DTE may require a special cable. Some knowledge of the RS-232 is
beneficial to insuring a proper connection. The pin assignments for the model 395 and
for a standard DTE (an AT comm port), are given in Table 2-2 .
EIA STANDARD RS-232-C specifies the electrical characteristics and pinouts of a
serial communication standard for connecting “Data Terminal Equipment” (DTE) to
“Data Communication Equipment” (DCE). A DTE is usually a device such as a
terminal, computer, or printer, that is the final destination of data. A DCE is usually a
device that converts data to another form and passes it through such as a modem.
Because RS-232 signal lines defined as outputs on a DTE are inputs on a DCE and vise
versa, connection of a DTE to a DTE or a DCE to a DCE requires a special cable with
many of the lines interchanged. Generally a “Null Modem” cable will have the correct
lines interchanged.
With RS-232-C, data is transferred serially between two devices using a voltage of +3
to +25 Vdc to represent a zero ( space ), and a voltage of -3 to -25 Vdc to represent a one
( mark ). Only two lines are required to transfer data, transmit and receive. When no data
is being transferred, these lines will be at a mark state. To transmit a byte, the
transmitting device first sends a start bit , a space, to synchronize the receiver. Then, the
data bits are sent LSB first (eight bits for 395). Some devices follow the data bits with
a parity bit (not 395). At the end there is up to 2 stop bits (395 uses one stop bit) that are
at the mark state.
The rate at which the bits are transferred is called baud rate and is in bits per second. The
baud rate must be set the same for both devices. The 395 has seven different baud rates
ranging from 1200 to 57.6K.
Handshaking is a communication between the two devices to control the transfer of data
to insure no data is lost when the data is transferring faster than a device can process it.
Handshaking can be accomplished in two ways, software or hardware. Software
handshaking is done using XON / XOFF protocol (not supported by 395), which sends
control characters over the data lines to control the flow.
2-8 Initial Preparation
Hardware handshaking uses additional lines ( DSR, DTR, RTS, CTS) to signal when the
device is ready to receive data. These handshake lines use +3 to +25 Vdc to indicate a
true, and -3 to -25 to indicate a false condition. When a DTE is ready to communicate,
it drives the DTR line true. The DCE (395) will respond by driving the DSR line true.
Then the DTE will drive RTS true when it is ready to receive data and the DCE will drive
CTS true when it is ready to receive data.
Table 2-2a. Model 395 RS-232 Connections (DB-9)
Pin Name Direction Description
1 DCD OUT Carrier Detect
2 RxD IN Receive Data
3 TxD OUT Transmit Data
4 DTR IN Data Terminal Ready
5 GND COMMON Signal Ground
6 DSR OUT Data Set Ready
7 RTS IN Request To Send
8 CTS OUT Clear To Send
9 NC - - - No Connection
Table 2-2b. Standard DTE RS-232 Connections
Pin Name Direction Description
DB-9 DB-25
1 8 DCD IN Carrier Detect
2 3 RxD IN Receive Data
3 2 TxD OUT Transmit Data
4 20 DTR OUT Data Terminal Ready
5 7 GND COMMON Signal Ground
6 6 DSR IN Data Set Ready
7 4 RTS OUT Request To Send
8 5 CTS IN Clear To Send
9 22 RI IN Ring Indicator
The Model 395 RS-232 signal names are defined below. A positive voltage above
+3Vdc is defined as a logic ‘0’ or ‘ON’. A negative voltage below -3 Vdc is defined as
a logic ‘1’ or ‘OFF’.
DCD Internally connected to pins 4 (DTR) and 6 (DSR) in the model 395. A logic ‘0’
signifies that the 395 is ready for communication. See notes for DTR.
TxD Serial data output from Model 395.
RxD Serial data input to Model 395.
DTR Signal from a DTE that indicates it is ready for communication. This signal is
internally connected to pins 1 (DCD) and 6 (DSR). Upon receipt of a logic ‘0’,
the DCD and DSR are driven to logic ‘0’ thus signaling that the 395 is ready for
communication.
GND Connected to internal signal ground. This should be connected to a ground point
on the device that the 395 is going to communicate with for proper error free
operation.
Initial Preparation 2-9
DSR Internally connected to pins 1 (DCD) and 4 (DTR) in the model 395. A logic ‘0’
signifies that the 395 is ready for communication. See notes for DTR.
RTS A logic ‘0’ on this pin indicates that the device that is connected to the 395 is ready
to receive data. When handshaking is disabled, this line is ignored by the 395.
The length of time that the 395 will wait before aborting transmission can be set
in the RS-232 setup screen (see section 5). The Model 395 will respond to a logic
‘1’ with a transmission latency of one character.
CTS A logic ‘0’ indicates that the Model 395 is ready to receive data. When
handshaking is enabled, this line is driven to logic ‘1’ when the 395 receive buffer
is about 2/3 full. Data will continue to be stored in the buffer until it is full. This
line will be driven to a logic ‘0’ when the buffer drops below 2/3 full. To prevent
data loss, this line should be connected and recognized by the other device.
NOTES:
Although communication can be accomplished using only the Transmit
and Receive lines, it is recommended that the ground and handshake
lines are connected so no data is lost due to the high transfer rates
possible with the Model 395.
Software handshaking ( XON / XOFF ) is not supported by the Model
395.
The Model 395 data format is 8 data bits, no parity, 1 stop bit.
2.11.2 IEEE-488 (Option 001)
To connect the Model 395 via the IEEE-488 interface to a computer or digital storage
oscilloscope, DSO, (figure 2-6), use a standard IEEE-488 bus cable [Wavetek-Datron
part number 630364 (1 metre) or 630366 (2 metres)]. For more information on remote
programming using IEEE-488, refer to section 5 of this manual.
IEEE-488
CAL ENABLE
BATTERY
NORM - CAL
Cal Sticker
TEST
BAT GND
Figure 2-6. IEEE-488 Connector
Note that the 0 V connection on the IEEE-488 connector is internally connected to the
floating analog common and not ground.
Connector
2-10 Initial Preparation
3.1 OVERVIEW OF THE MODEL 395
The Model 395, 100 MHz Synthesized Arbitrary Waveform Generator, produces
a variety of standard, pulse, noise, and user-defined (Arbitrary) waveforms. In
addition, the Model 395 allows linking of up to four arbitrary waveforms to form
a Sequence. Plus, the Model 395 triggers, sweeps, and modulates all waveforms.
Also, sum an external signal with the generator’s internal signal.
The Model 395 stores up to 100 Arbitrary waveforms in battery-backed memory.
Complete instrument setups can be stored and recalled.
Using the Model 395
Section 3Introduction To The Model 395
This section introduces front panel operation of the Model 395. Included in this
section are a series of examples demonstrating the features of the unit. Section 4
contains reference information about Model 395 operation. Section 5 describes the
SCPI remote programming commands, RS-232 operation, and optional IEEE 488
operation. Section 5 also contains a series of SCPI language remote programming
examples demonstrating the unit’s features; these examples are the remote
programming equivalent of the examples in this section.
Appendix B of this manual contains a front panel screens quick reference, while
appendix C contains SCPI commands quick reference.
3.2 NAVIGATING THE SCREENS
3.2.1 Front Panel Keys and Screens
Pressing front panel keys display screens with program parameters relative to the
key pressed. Change program parameters by using softkeys (F1 through F8), or
change numeric values using the keypad or knob. For example, press the
FREQUENCY key to display the Frequency screen; see figure 3-1.
Introduction To The Model 395 3-1
Try pressing the TRIG IN key or MODE key to display their screens.
3.2.2 Softkeys
The Model 395 front panel softkeys (F1 through F8) allow you to select items from the
screen (figure 3-2).
Diamonds on the screen identify selectable screen items. Hollow diamonds identify
deselected items. Filled diamonds denote selected items. For example, press MODE
and then press F3 to select the “gated” mode (figure 3-2). Default items are initially
displayed with filled-in diamonds (like continuous in figure 3-2).
F1
F2
F3
F4
FREQUENCY
STANDARD FREQUENCY
1.000000000 kHz
freq period
Figure 3-1. Frequency Screen
Softkeys
Selected Item
continuous
sweep
gated
trig'd, cnt:0000001
Unselected Item
F5
F6
F7
F8
3.2.3 Extended Screens
Double-Headed Arrows
Double-headed arrows on the screen indicate additional screen items can be accessed by
using the knob or the cursor keys. See figure 3-3. Also, items next to double-headed
arrows also can be selected by using the softkey.
Figure 3-3. Double-Headed Arrow (Filter Screen)
Figure 3-2. Softkeys (Mode Screen)
3-2 Introduction To The Model 395
… Ellipsis
CREATE NEW WAVEFORM
(avail mem: 64512)
create blank …
create from copy …
An ellipsis (three dots following screen text) indicates additional screens will follow
when selected. For example, press the Waveform Edit’s CREATE key and check out
“create blank …,” see figure 3-4.
Figure 3-4. “Ellipsis” (Create Screen)
3.2.4 Changing Numeric Values
The Model 395 allows you to change numeric values using the numeric keypad or knob.
The screen displays modifiable values with the “cursor” starting under the most
significant digit. For example, try pressing the OFFSET key.
With the Keypad
CREATE: "wv2_____"
size: 1024
(max: 64512)
cancel create
To enter values using the keypad, press the numeric key. The Model 395 accepts the
value when the Enter key is pressed.
The Model 395 accepts values in three basic formats: Integer (10), floating point (10.0),
and exponential (1 exp 1).
For example, to change the frequency to 50 kHz using the exponential format, enter the
value by pressing these keys:
5
EXP
4
ENTER
50.00000000 kHz
Using the Knob
The front panel knob also can be used to change numeric values. When using the knob,
values are always changed starting from the digit over the cursor. To modify a value
using the knob, place the cursor under the desired digit, and rotate the knob to change
the value. Clockwise rotation increases the value; and counterclockwise rotation
decrease the values.
For example, to use the knob to set the frequency to 50.35 kHz, press the FREQUENCY
key to display the Standard Frequency screen; see figure 3-5. Note: the number of digits
shown on the frequency screen depends on the selected waveform.
Introduction To The Model 395 3-3
STANDARD FREQUENCY
50.00000000 kHz
freq period
Figure 3-5. Knob Example
Use the right “cursor” key to move the cursor over three digits.
3X
50.00000000 kHz
Rotate the knob clockwise until the frequency reads 50.35000000 kHz.
50.35000000 kHz
3.2.5 Correcting Mistakes
3.3 ON-SCREEN HELP
If you make a mistake while entering a value from the front panel, you can make
corrections by using the CLEAR key or the BSP (Backspace) key.
Use the CLEAR key to erase the entire value. Pressing ENTER, rotating the knob, or
pressing a cursor key, restores the original value providing a value has not been entered
via the keypad.
When using the keypad to enter values, press the ¨ BSP (backspace) key to erase the digits
to the left of the cursor. Then use the keypad to enter the correct value.
The Model 395 includes on-screen help for the current screen. To access a Help screen,
press the HELP “button;” see figure 3- 6. Rotate the knob or use the cursor keys to display
additional help lines. Press the HELP key a second time to return to the operation screen.
3-4 Introduction To The Model 395
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