Tegam 2714A User manual

MODEL 2714A
20 MS/s Arbitrary Waveform Generator
Operation Manual
P/N 810020-CD
Rev. C
Publication Date: October 2003

WARRANTY
TEGAM, Inc. warrants this product to be free from defects in material and workmanship for a
period of one year from date of shipment. During the warranty period, we will at our option,
either repair or replace any product that proves to be defective.
TEGAM, Inc. warranty does not apply to defects resulting from unauthorized modification or
misuse of any product or part. This warranty also does not apply to fuses, batteries, or damage
from battery leakage.
To exercise the warranty, contact TEGAM, Inc. TEN TEGAM Way, Geneva, Ohio 44041, phone
440-466-6100, fax [phone], M-F, 8 a.m. - 5 p.m. ET. You will be given prompt assistance
and return instructions. Send the instrument, transportation prepaid, to the indicated service
facility. Repairs will be made and the instrument returned, transportation prepaid. Repaired
products are warranted for the balance of the original warranty, or at least 90 days, whichever is
longer.
Limitation of Warranty
This warranty is in lieu of all other warranties, expressed or implied, including any implied
warranty of merchantability or fitness for a particular use. TEGAM, Inc. Shall not be liable for
any indirect, special or consequential damages.
Statement of Calibration
TEGAM, Inc. warrants this product for a period of one year from date of shipment. During this
period we will recalibrate any product that does not conform to the published accuracy
specification.
This instrument has been inspected and tested in accordance with specifications published by
TEGAM, Inc.
The accuracy and calibration of this instrument are traceable to the National Institute of
Standards and Technology through equipment that is calibrated at planned intervals by
comparison to certified standards maintained in the Laboratories of TEGAM, Inc.
How to Contact TEGAM
TEGAM, Inc.
TEN TEGAM Way
Geneva, OH 44041
Phone: [phone]
E-mail: [email protected]

TEGAM 2714A
TEGAM

II
MODE
Manual
Trigger
Power System/Parameter Control Sync Main
switch menu keys knob Output Output
Front-Panel Entry
Use the knob and the arrow keys to modify the displayed number.
Use the System/Parameter menu keys and the knob to make selection.
Use the arrow keys and the knob to select the menu parameter.
Menu/Parameter
operation keys
TEGAM 2714A
LINE SYSTEM PARAMETERS
LOCAL SETUP MODE SCLK WVFM OUTPUT
FREQ
20 MS/s Arbitrary Waveform Generator
The Front Panel
Back-lighted
LCD screen

Mains
Voltage
Range (V)
Power Mains Setting
Fuse Rating
Hi / Lo
Selector
Range
Selector
90 ~ 105 Lo 120V 0.8A GDC
108 ~ 126 Hi
198 ~231 Lo 240V 0.4A GDC
216 ~ 252 Hi
III
The Rear Panel
Power Entry/
Fuse-holder
module
GPIB (IEEE488.2)
Interface connector
Serial Interface
(RS-232) connector
10MHz REF
IN/OUT
TRIG INSYNC TRIG
OUT
CLOCK
IN/OUT
HI/LO
selector
120/240V
selector
BNC connectors
(TTL)

VI

Chapter 7 - Remote Interface Operation
Introduction ............................................................................................................ 7 - 2
To set the GPIB address ........................................................................................ 7 - 2
To set the RS-232 parameters ............................................................................... 7 - 3
RS-232 Adapter Cables ......................................................................................... 7 - 3
Before sending commands .................................................................................... 7 - 5
Command Features
Command Execution ............................................................................... 7 - 5
Waveform Selection ................................................................................ 7 - 6
Waveform Deletion ................................................................................. 7 - 6
Command Set ........................................................................................................ 7 - 7
Reset and Default Values ...................................................................................... 7 - 12
RS-232 Programming Example ............................................................................. 7 - 14
GPIB Programming Example ................................................................................ 7 - 16
Chapter 8 - Advanced Remote Operation
RS-232 Overview
Introduction ............................................................................................. 8 - 2
Interface Requirements ........................................................................... 8 - 2
Verification of Communication .............................................................. 8 - 3
Command Syntax .................................................................................... 8 - 3
Event Register and Status and Error Reporting ..................................... 8 - 4
Functional Syntax Elements ................................................................... 8 - 4
GPIB (IEEE-488.2) Overview
Introduction ............................................................................................. 8 - 7
Common Commands ............................................................................... 8 - 8
Status and Event Registers ...................................................................... 8 - 9
Functional Elements - Syntax and Nomenclature ................................... 8 - 11
Error Reporting ........................................................................................ 8 - 12
Data Formats
Decimal Numeric Program Data ............................................................. 8 - 13
Arbitrary Block Program Data ................................................................ 8 - 14
Remote Command Set
Introduction ............................................................................................. 8 - 15
Command Sequence ................................................................................ 8 - 15
Command Set Hierarchy ......................................................................... 8 - 15
Stacked Queries ....................................................................................... 8 - 16
Command Set .......................................................................................... 8 - 16
Waveform Memory Format
Decimal Waveform Download ............................................................... 8 - 19
Binary Waveform Download .................................................................. 8 - 20
Example ................................................................................................... 8 - 21
Bianry Download Test Program for GPIB .............................................. 8 - 23
Sequence Generator Operation
Add Sequence .......................................................................................... 8 - 25
Auto Sequence ......................................................................................... 8 - 25
Sequence .................................................................................................. 8 - 25
Sequence Burst ........................................................................................ 8 - 26
Sequence Burst Number ......................................................................... 8 - 26
Index
Table of Contents
V

TEGAM, Inc.
TEGAM, Inc. All rights reserved.
TEGAM

Quick Start: Chapter 1 will prepare you to use the basic parameters of the
arbitrary waveform generator within a short time.
About Arbitrary Waveforms: Chapter 2 provides you the basic concept of
arbitrary waveform generation.
Front-Panel Menu Operation: Chapter 3 describes the front-panel menu
operation.
Waveform Creation System: Chapter 4 describes the overview of waveform
creation system.
Multi-Instrument Operation: Chapter 5 describes the basic connection and the
multiple unit operation for multiphase applications. You will learn about the
hardware connections and the available master-slave mode.
Performance Verification: Chapter 6 describes the procedure to verify the
2714A specification.
Remote Interface Operation: Chapter 7 describes the remote interfaces. You
will learn how to send simple commands over RS-232 or GPIB. The detail
command list is included in this chapter.
Advanced Remote Operation: Chapter 8 describes in details the remote
interfaces. It is intended for use by experienced systems programmers to control
every feature of the 2714A from both RS-232 and GPIB.
In this manual
1
2
3
4
5
6
7
8

1
1 - 1
Quick Start
1

III.

1
1 - 3
Standard Waveform Frequency = (Sample Clock) /1000 (default value)
Waveform Frequency
= [(Sample Clock) / (Waveform Length)]*(Number of Cycles in the Waveform Frame)
To set the output frequency for standard waveforms.
Chapter 1 Quick Start
To set the output frequency for standard waveforms
At power-on, the generator outputs a cw sine wave at 1 kHz. The following
steps will show you how to change the output frequency to 1.2 kHz. Remember
that the output frequency is computed as shown. Please note that the standard
waveforms are restricted to one cycle of the selected waveform for the simplicity
of operation. Therefore, the frame rate is the same as the frequency of the
waveform.
1. Press SCLK (Sample Clock) / FREQ (Frequency) button.
The displayed frequency is either the power-on value or the previously selected
frequency.
2. Enter the magnitude of the desired frequency.
Use the right-arrow button to place the cursor under the selected digit. Turn the
knob to set the digit to 2.
3. Select the desired frequency range.
Use the right-arrow button to place the cursor under the multiplier (k). Turn the
knob counterclockwise to switch the range by a decade.
STDW:SINE:
Freq = 1.000 kHz
STDW:SINE:
Freq = 1.200 kHz
STDW:SINE:
Freq = 1.200 kHz

1
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To set the sample clock rate.
Chapter 1 Quick Start
To set the sample clock rate
At power-on, the generator outputs a free-running sine wave at 1 kHz with an
amplitude of 1.0 V peak-to-peak (into 50Ωtermination). If you select any of the
standard waveforms, you can only control the frequency. If you select a
user-defined waveform or sequence, you can control only the sample clock rate.
The following steps will show you how to change the sample clock rate of a
user-defined waveform or an optional sequence. The output frequency of any
waveform is:
2. Press SCLK (Sample Clock) / FREQ (Frequency) button.
The displayed sample clock is either the power-on value or the previous sample
clock rate selected.
3. Enter the magnitude of the desired sample clock rate.
Use the right-arrow button to place the cursor under the selected digit. Turn the
knob to set the digit to 2.
4. Select the range of the desired frequency.
Use the right-arrow button to place the cursor under the multiplier (M). Turn the
knob counterclockwise to switch the range by a decade. Observe the output
frequency has changed by a decade.
USER:WAV#0:
Sclk = 1.000 MHz
Waveform Frequency
= [(Sample Clock) / (Waveform Length)]*(Number of Cycles in the Waveform Frame)
USER:WAV#0:
Sclk = 1.200 MHz
USER:WAV#0:
Sclk = 1.200 MHz
1. Press WVFM (waveform) button and turn the knob to select a
User-defined waveform.

1
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To set the output amplitude
Chapter 1 Quick Start
To set the output amplitude
At the initial power-on, the generator outputs a cw sine wave at 1 kHz with an
amplitude of 1V peak-to-peak (into 50Ωtermination). The following steps will
show you how to change the amplitude to 2.5 V peak-to-peak.
1. Press OUTPUT button.
The displayed amplitude is either the power-on value or the previous amplitude
selected.
3. Enter the magnitude of the desired amplitude.
Turn the knob to set the digit to 2.
4. Enter the magnitude of the desired amplitude.
Use the right-arrow button to place the cursor under the selected digit. Turn the
knob to set the digit to 5 to change the magnitude.
2. Select the digit you are going to modify.
Use the right-arrow button to place the cursor under the selected digit.
OUTPUT:
Ampl = 1.000 V
OUTPUT:
Ampl = 1.000 V
OUTPUT:
Ampl = 2.000 V
OUTPUT:
Ampl = 2.500 V

1
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To set the output offset voltage.
Chapter 1 Quick Start
To set the output offset voltage
At the initial power-on, the generator outputs a cw sine wave at 1 kHz with an
offset voltage of 0 V (into 50Ωtermination). The following steps will show you
how to add 1.0 V offset to the output.
1. Press OUTPUT button.
Then, select Offset by turning the knob.
2. Select the digit and enter the desired offset voltage.
Use the right-arrow button to place the cursor under the number 0. Turn the
knob to select the desired offset voltage. You must observe some restrictions for
the magnitude of the offset voltage. The sum of the offset and peak amplitude
OUTPUT:
Ofst = 0.000 V
OUTPUT:
Ofst = 1.000 V
Amplitude and DC Offset Ranges
Pragmatic 2714A utilizes unique combinations of the input and output
attenuators for the output amplifier in order to accomplish the signal
attenuation. Therefore, if DC offset is applied to the signal, the following
restrictions must be observed.
Amplitude Range Legal Amplitude/DC Offset Limits
1.00V ~ 10.2V Amplitude + | DC Offset | < 10.2V
100mV ~ 999mV Amplitude + | DC Offset | < 1.00V
10mV ~ 99mV Amplitude + | DC Offset | < 100mV

1
1 - 7
To select a standard waveform.
Chapter 1 Quick Start
To select a standard waveform
At the initial power-on, the generator outputs a free-running sinewave at 1 kHz.
The following steps will show you how to select another standard waveform.
1. Press WVFM (waveform) button.
Then, select Standard by turning the knob. The default length is set to 1000
points. You may change the length by placing the cursor under the number. If
you change the length to 200 points, the output frequency will increase by 5
times.
2. Press the down-arrow key to waveform selection menu.
Turn the knob to select one of the 10 standard waveforms.
3. Press the down-arrow key to select parameter(s).
WAVEFORM:
Standard 1000Pts ↓
WVFM:STDW: ↑
Ramp ↓
STDW:RAMP ↑
Duty Cycle = 100.0% ↓
Note: the standard waveform data is recomputed after the parameters are
changed. It may take a fraction of a second to several seconds to compute and
draw the new waveshape. The time to draw the waveform depends on the sample
length and type of waveform selected.
4. Press the right-arrow key to set parameter.
STDW:RAMP ↑
Duty Cycle = 100.0%↓

1
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WVFM:USER: ↑
Wav#= 01 1000Pts
To select a user-defined waveform.
Chapter 1 Quick Start
To select a user-defined waveform
At the initial power-on with the factory setting, the generator outputs
free-running sinewave at 1 kHz. The following steps will show you how to
select a user-defined arbitrary waveform. All user-defined waveforms must be
created on the PC and downloaded to the 2714A using WaveWorks Jr. or other
software prior to the selection. However, we have loaded the first three
user-defined waveform locations with the WaveWorks Jr. sample waveforms for
your verification.
1. Press WVFM (waveform) button.
Then, select User defined by turning the knob. You will be able to view the
following waveforms, unless you have already over-written the waveform
location with a new waveform or deleted the waveform.
Wav# = 00 : Cardiac, Size = 1000 points
Wav# = 01 : Gaussian Pulse, Size = 1000 points
Wav# = 02 : Pulse, Size = 100 points
Wav# = 03 : Sinc, Size = 1000 points
Wav# = 04 : DC, Size = 1000 points
2. Press the down-arrow key to waveform selection menu.
Turn the knob to select one of the user-defined waveforms. If the waveform
number shows (Empty), the waveform does not contain any data.
Note: The length can not be changed from the instrument front panel.
WAVEFORM: ↓
User defined
3. View the 5 preloaded waveforms or any other user-defined waveforms.

1
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SEQ#0: ↑
Step00=Wav00*0000000
3. Press the down-arrow key to view step parameters or to modify the steps.
Turn the knob to select a step.
Note: Each Seq# may contain up to 100 steps, use up to 100 user-defined
waveforms which may be repeated up to 1,000,000 repetitions (shown in the
digits to the right of the asterisk (*)). If the repetition is set to zero the step is
deleted. If all steps are deleted, the Seq# will indicate Empty.
To select a sequence waveform. (option)
Chapter 1 Quick Start
To select a sequence waveform
The following steps will show you how to select a sequence waveform. The
sequence generator option must be installed in the 2714A prior to proceeding
with the following steps. All user-defined waveforms must be created on the PC
and downloaded to the 2714A by using WaveWorks Jr. software before making
the sequence selection. However, we have pre-loaded the first three user-defined
waveforms with the WaveWorks Jr. sample waveforms. We will utilize these
waveforms to demonstrate the sample sequence.
1. Press WVFM (waveform) button.
Then, select Sequence by turning the knob.
2. Press the down-arrow key to waveform selection menu.
Turn the knob to select the desired Sequence waveform number. You will be
able to view the sequence waveform, unless you have already altered the
sequence steps.
WAVEFORM: ↓
Sequence
WVFM:SEQ: ↑
Seq#= 0 (Loaded) ↓

1
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To select operating mode
Chapter 1 Quick Start
To select operating mode
The following steps will show you how to select an operating mode and output
one cycle of a sinewave when a trigger signal is applied.
1. Press WVFM (waveform) button.
Then, select Standard by turning the knob.
2. Press the down-arrow key to waveform selection menu.
Turn the knob to select Sinewave. You will be able to view the sinewave, unless
you have already altered the Mode setting, the default is Continuous..
3. Press the Mode key to change the operating mode.
Turn the knob to select Trigger mode.
STDW:SINE;
Mode = Trigger
WAVEFORM:
Standard 1000 pts ↓
WVFM:STDW: ↑
Sine ↓
4. Press the Manual Trigger key to output a single cycle of a sinewave.
Note: If you apply a trigger pulse to the Trigger Input (TTL level) on the rear
BNC connector, you can also output a single cycle of a sinewave.
Note: Sequence waveforms do not run in Burst Mode. If you have set the 2714A
to Burst Mode while selecting one of the standard waveforms or user-defined
waveforms and then you select a sequence waveform, the instrument will
automatically be set to Trigger Mode. If you select one of sequence waveforms
and then select Mode, you will not be able to select Burst Mode until you select
either standard or user-defined waveform.

2 - 1
2
About Arbitrary Waveforms
2