Tektronix PSPL2600C User manual

xx
Tektronix PSPL2600C
Pulse Generator
ZZZ
User Manual
*P071341700*
071-3417-00

Tektronix PSPL2600C
Pulse Generator
ZZZ
User Manual
xx
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071-3417-00

Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries
or suppliers, and are protected by national copyright laws and international treaty provisions.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication
supersedes that in all previously published material. Specifications and price change privileges reserved.
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
Contacting Tektronix
Tektronix, Inc.
14150 SW Karl Braun Drive
P.O. Box 50 0
Beaverton, OR 97077
USA
For product information, sales, service, and technical support:
In North America, call 1-800-833-9200.
Worldwide, visit www.tektronix.com to find contacts in your area.

Warranty
Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1)
year from the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its
option, either will repair the defective product without charge for parts and labor, or will provide a replacement
in exchange for the defective product. Parts, modules and replacement products used by Tektronix for warranty
work may be new or reconditioned to like new performance. All replaced parts, modules and products become
the property of Tektronix.
In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of
the warranty period and make suitable arrangements for the performance of service. Customer shall be responsible
for packaging and shipping the defective product to the service center designated by Tektronix, with shipping
charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within
the country in which the Tektronix service center is located. Customer shall be responsible for paying all shipping
charges, duties, taxes, and any other charges for products returned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate
maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage
resulting from attempts by personnel other than Tektronix representatives to install, repair or service the product;
b) to repair damage resulting from improper use or connection to incompatible equipment; c) to repair any damage
or malfunction caused by the use of non-Tektronix supplies; or d) to service a product that has been modified or
integrated with other products when the effect of such modification or integration increases the time or difficulty
of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE PRODUCT IN LIEU OF ANY
OTHER WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
TEKTRONIX' RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE
AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY.
TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL,
OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS
ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.
[W2 – 15AUG04]

Table of Contents
Important safety information..................................................................................... iii
General safety summary ..................................................................................... iii
Service safety summary....................................................................................... v
Terms in this manual ......................................................................................... vi
Symbols and terms on the product.......................................................................... vi
Preface ............................................................................................................. vii
Getting started................ .......................... .................... ...... .................... ............... 1
Power requirements............................................................................................ 1
Ventilation ..................... ............................ ............................ ...................... ... 2
Environmental ratings......................................................................................... 2
Front panel controls and connectors......................................................................... 2
Rear panel controls and connectors.......................................................................... 4
Pulse waveform examples......................................................................................... 5
Specifications ...................................................................................................... 13
User service ........................................................................................................ 15
Service offerings.............................................................................................. 15
General care ................................................................................................... 15
Preventive maintenance...................................................................................... 16
Repack the instrument for shipment........................................................................ 16
Compliance information .......................................................................................... 17
Safety compliance ............................................................................................ 17
Tektronix PSPL2600C Pulse Generator User Manual i

Table of Contents
List of Figures
Figure 1: PSPL2600C front panel controls and connectors.................................................... 2
Figure 2: PSPL2600C rear panel controls and connectors..................................................... 4
Figure 3: Positive pulse ......... ...... .................................. .................................. ...... ... 5
Figure 4: Negative pulse........................................................................................... 6
Figure 5: Minimum duration positive pulse .......... ........................................................... 6
Figure 6: Minimum duration negative pulse .................................................................... 7
Figure 7: Leading edge waveform................................................................................ 7
Figure 8: Trailing edge waveform ......................... ...... ............................ ...... ............... 8
Figure 9: 20 ns duration pulse waveform........................................................................ 8
Figure 10: 50 ns duration pulse waveform....................................................................... 9
Figure 11: 100 ns duration pulse waveform..................................................................... 9
Figure 12: Adjustable delay trigger, jitter measures 12.8 psrms ............................................... 10
Figure 13: Fixed 115 ns delay trigger, jitter measures 6.8 psrms .............................................. 10
Figure 14: Adjustable duration waveform...................................................................... 11
List of Tables
Table 1: Line voltage selector switch settings............ .......................... ................ ............. 1
Table 2: Maximum operating environment ratings ............................................................. 2
Table 3: Model overview ......................................................................................... 13
Table 4: Trigger and timing ...................................................................................... 13
Table 5: General specifications .................................................................................. 14
ii Tektronix PSPL2600C Pulse Generator User Manual

Important safety information
This manual contains information and warnings that must be followed by the user
for safe operation and to keep the product in a safe condition.
To safely perform service on this product, additional information is provided at
the end of this section. (See page v, Service safety summary.)
General safety summary
Use the product only as specified. Review the following safety precautions to
avoid injury and prevent damage to this product or any products connected to it.
Carefully read all instructions. Retain these instructions for future reference.
Comply with local and national safety codes.
For correct and safe operation of the product, it is essential that you follow
generally accepted safety procedures in addition to the safety precautions specified
in this manual.
The product is designed to be used by trained personnel only.
Only qualified personnel who are aware of the hazards involved should remove
the cover for repair, maintenance, or adjustment.
Before use, always check the product with a known source to be sure it is
operating correctly.
This product is not intended for detection of hazardous voltages.
Use personal protective equipment to prevent shock and arc blast injury where
hazardous live conductors are exposed.
While using this product, you may need to access other parts of a larger system.
Read the safety sections of the other component manuals for warnings and
cautions related to operating the system.
When incorporating this equipment into a system, the safety of that system is the
responsibility of the assembler of the system.
To avoid fire or personal
injury
Use proper power cord. Use only the power cord specified for this product and
certified for the country of use.
Do not use the provided power cord for other products.
Use proper voltage setting. Before applying power, make sure that the line
selector is in the proper position for the source being used.
Ground the product. This product is grounded through the grounding conductor
of the power cord. To avoid electric shock, the grounding conductor must be
Tektronix PSPL2600C Pulse Generator User Manual iii

Important safety information
connected to earth ground. Before making connections to the input or output
terminals of the product, make sure that the product is properly grounded.
Do not disable the power cord grounding connection.
Power disconnect. The power cord disconnects the product from the power
source. See instructions for the location. Do not position the equipment so that
it is difficult to operate the power cord; it must remain accessible to the user at
all times to allow for quick disconnection if needed.
Connect and disconnect properly. Do not connect or disconnect probes or test
leads while they are connected to a voltage source.
Observe all terminal ratings. To avoid fire or shock hazard, observe all ratings
and markings on the product. Consult the product manual for further ratings
information before making connections to the product.
Do not apply a potential to any terminal, including the common terminal, that
exceeds the maximum rating of that terminal.
Do not float the common terminal above the rated voltage for that terminal.
The measuring terminals on this product are not rated for connection to mains or
Category II, III, or IV circuits.
Do not operate without covers. Do not operate this product with covers or panels
removed, or with the case open. Hazardous voltage exposure is possible.
Avoid exposed circuitry. Do not touch exposed connections and components
when power is present.
Do not operate with suspected failures. If you suspect that there is damage to this
product, have it inspected by qualified service personnel.
Disable the product if it is damaged. Do not use the product if it is damaged
or operates incorrectly. If in doubt about safety of the product, turn it off and
disconnect the power cord. Clearly mark the product to prevent its further
operation.
Examine the exterior of the product before you use it. Look for cracks or missing
pieces.
Use only specified replacement parts.
Use proper fuse. Useonlythefusetypeandratingspecified for this product.
Wear eye protection. Wear eye protection if exposure to high-intensity rays or
laser radiation exists.
Do not operate in wet/damp conditions. Be aware that condensation may occur if
a unit is moved from a cold to a warm environment.
iv Tektronix PSPL2600C Pulse Generator User Manual

Important safety information
Do not operate in an explosive atmosphere.
Keep product surfaces clean and dry. Remove the input signals before you clean
the product.
Provide proper ventilation. Refer to the installation instructions in the manual for
details on installing the product so it has proper ventilation.
Slots and openings are provided for ventilation and should never be covered or
otherwise obstructed. Do not push objects into any of the openings.
Provide a safe working environment. Always place the product in a location
convenient for viewing the display and indicators.
Avoid improper or prolonged use of keyboards, pointers, and button pads.
Improper or prolonged keyboard or pointer use may result in serious injury.
Be sure your work area meets applicable ergonomic standards. Consult with an
ergonomics professional to avoid stress injuries.
Servicesafetysummary
The Service safety summary section contains additional information required to
safely perform service on the product. Only qualified personnel should perform
service procedures. Read this Service safety summary and the General safety
summary before performing any service procedures.
To avoid electric shock. Do not touch exposed connections.
Do not service alone. Do not perform internal service or adjustments of this
product unless another person capable of rendering first aid and resuscitation is
present.
Disconnect power. To avoid electric shock, switch off the product power and
disconnect the power cord from the mains power before removing any covers or
panels, or opening the case for servicing.
Use care when servicing with power on. Dangerous voltages or currents may exist
in this product. Disconnect power, remove battery (if applicable), and disconnect
test leads before removing protective panels, soldering, or replacing components.
Verify safety after repair. Always recheck ground continuity and mains dielectric
strength after performing a repair.
Tektronix PSPL2600C Pulse Generator User Manual v

Important safety information
Termsinthismanual
These terms may appear in this manual:
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 product or other property.
Symbols and terms on the product
These terms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you read
the marking.
WARNING indicates an injury hazard not immediately accessible as you
read the marking.
CAUTION indicates a hazard to property including the product.
When this symbol is marked on the product, be sure to consult the manual
to find out the nature of the potential hazards and any actions which have to
betakentoavoidthem. (Thissymbolmayalsobeusedtorefertheuserto
ratings in the manual.)
The following symbol(s) may appear on the product:
vi Tektronix PSPL2600C Pulse Generator User Manual

Preface
Preface
This document provides information for installing and using the Tektronix
PSPL2600C Pulse Generators.
These pulse generators provide high amplitude positive or negative pulses with
convenient front panel control. The output has fast edge rates, smooth transitions
and minimal overshoot and ringing. Adjustable output levels are obtained using
internal step attenuators, ensuring consistent signal shape at all settings. The
outputs are designed for a 50 Ωimpedance, but can safely drive any load from a
short circuit to an open.
Features Front panel operation
Internal, external, or manual trigger modes
Continuously variable repetition rate and duration settings
Models PSPL2600C. Pulse generator, 400 ps, 45 V, 1 to 100 ns
Options PSPL2600C TURBO. Supports 50 V, 250 ps rise times
Documentation The following documentation is available:
This PPG2600C Pulse Generator User Manual
Product datasheets (PDF versions only, downloadable from the Tektronix
Web Site)
Check the Tektronix Web Site for additional product documentation at
www.Tektronix.com.
Tektronix PSPL2600C Pulse Generator User Manual vii

Preface
viii Tektronix PSPL2600C Pulse Generator User Manual

Getting started
Your instrument was carefully inspected electrically and mechanically before
shipment. After unpacking all items from the shipping carton, check for any
obvious signs of physical damage that may have occurred during transit. Report
damage to the shipping agent immediately. Save the original packing carton
for possible future shipment.
The following items are included with every instrument order:
Pulse generator with line cord
Rack mount/handle kit
Printed user manual
Accessoriesasordered
Power requirements
CAUTION. The pulse generator can be damaged by static discharge or applied
voltages. To avoid damaging the pulse generator, take appropriate precautions
when using the instrument. Always discharge the coaxial cables and connectors
before connecting them to the pulse generator or instrument-under-test.
CAUTION. Operating the instrument on an incorrect line voltage can cause
damage, possibly voiding the warranty. To avoid this, operate the instrument
with the correct line voltage.
The instrument has an AC Mains Voltage Selector switch on the rear panel used to
select the proper voltage, power, and frequency selection. The following table
describes the switch selections and fuse information for your instrument. Check
to ensure the operating voltage in your area is compatible.
Table 1: Line voltage selector switch settings
Mains voltage Switch positions Frequency Power Fuse type and rating
100 V AD 50 Hz 65 VA 5 x 20 T 800 mA, 250 V
115 V AC 60 Hz 42 VA 3AG-SB 750 mA, 250 V
230 V BC 50 Hz 65 VA 5 x 20 T 400 mA, 250 V
Tektronix PSPL2600C Pulse Generator User Manual 1

Getting started
Ventilation
CAUTION. Observe the following precautions to maintain proper ventilation:
Do not block any cooling vents.
Do not position any devices adjacent to the instrument that force air (heated or
unheated) into or onto the instrument’s surfaces or cooling vents. This additional
airflow could compromise accuracy performance.
When rack mounting the instrument, ensure there is adequate airflow around the
instrument rear and sides to ensure proper cooling. Adequate airflow enables air
temperatures within approximately one inch of the instrument surfaces to remain
within specified limits under all operating conditions.
Environmental ratings
The following table describes the maximum operating environment ratings for
your instrument.
Table 2: Maximum operating environment ratings
Feature Description
Temperature 0to40°C(32to104°F)
Humidity 80% for temperatures up to 31 °C (88 °F) decreasing linearly
to 50% at 40 °C (104 °F)
Altitude 2000 m (6562 ft.)
Front panel controls and connectors
The front panel of the PSPL2600 is shown in the following figure. The Power
switch is located on the front left side of the instrument. The power indicator
adjacent to the switch lights up when the instrument is on.
Figure 1: PSPL2600C front panel controls and connectors
2 Tektronix PSPL2600C Pulse Generator User Manual

Getting started
Repetition Rate controls The pulse generator provides a means of setting the repetition rate from 1 to
100 kHz using the built-in rate generator. Use the Range switch to select a coarse
repetition rate from 100 to 0.01 kHz, and then use the Fine vernier control to fine
tune the repetition rate. The maximum repetition rate is internally limited to
100 kHz to protect the internal circuitry of the generator.
Ext trigger input To trigger the generator from an external source through the front panel BNC
connector, set the Repetition Rate Range switch to Ext. The external trigger
input requires a pulse >1.5 V and triggers the pulse generator on positive going
edge pulses.
External trigger pulses in excess of 100 kHz can be applied to the generator
without damage. The trigger circuitry is equipped with a lockout gate that disables
the circuitry for 8.8 μs after it has been triggered.
Use the Single Pulse toggle switch to produce single-shot pulses under manual
control.
Pulse Delay control The Delay control is a ten-turn potentiometer to obtain a high-resolution pulse
delay at the main trigger output BNC connector. The delay from the trigger pulse
to the output pulse is adjustable from 0 to 100 ns.
Pulse Duration control Use the Duration control to obtain a high-resolution pulse duration (width) from
0.5 to 100 ns. The control is a ten-turn potentiometer.
Trigger outputs Two BNC connectors provide a main trigger output and an auxiliary trigger
output. Both outputs provide 800 mV pulses into 50 Ω. They provide TTL-level
(>2.0 V) pulses into a high impedance.
The main trigger output connector is located directly under the Delay control
and is labeled 0.8 V. This output allows for variable delay between the trigger
and the pulse.
An auxiliary trigger output labeled 115 ns provides a pulse 115 ns prior to the
pulse output.
Attenuation controls Use these controls to adjust the attenuation of the pulse output. The Coarse control
sets the output amplitude from 0 to 60 dB in 10 dB steps and the Fine control sets
the amplitude from 0 to 10 dB in 1 dB steps.
Pulsepolarityswitch Use this switch to set the polarity of the pulse.
Tektronix PSPL2600C Pulse Generator User Manual 3

Getting started
Pulse Output connector The pulse generators use SMA connector for the pulse output. The PSPL2600C
provides a 14 mV to 45 V output; the PSPL2600C-TURBO provides a 16 mv to
50 V output. The instruments are designed to work into a 50 Ωload or an open
circuit or short circuit.
CAUTION. Applying an external voltage to the SMA Pulse output connector can
damage the pulse generator. To avoid damaging the pulse generator use a DC
block such as the PSPL5500A. For applications requiring a DC baseline offset
voltage to be added to the pulse generator, use a bias tee such as the PSPL5575A.
The bias tee contains DC blocking capacitors.
Rear panel controls and connectors
The rear panel of the instrument is shown in the following figure.
Figure 2: PSPL2600C rear panel controls and connectors
AC line receptacle. Connect the appropriate power cord here.
Fuse holder. Refer to the fuse information in the AC Mains Voltage Selector
switch settings table. (See Table 1.)
Linevoltageselectorswitches.Switch settings determine the correct voltage,
power, and frequency settings for your instrument. (See Table 1.)
4 Tektronix PSPL2600C Pulse Generator User Manual

Pulse waveform examples
Typical pulse waveforms are shown in this section. Tektronix recommends using
a wide-band sampling oscilloscope to verify these waveforms. The oscilloscope
rise time must be less than 100 ps.
CAUTION. The input circuitry of the oscilloscope can be damaged by directly
connecting the output of the pulse generator to the oscilloscope. To avoid
damaging the input circuitry of the oscilloscope, use attenuators to provide at least
46 dB attenuation between the output of the pulse generators and the oscilloscope.
The following figures show typical waveforms with the duration set to 5 ns. A
fixed 115 ns delay pulse is used to trigger the oscilloscope unless otherwise noted.
Thedisplaysaresetto10V/divand1ns/div.
Figure 3: Positive pulse
Tektronix PSPL2600C Pulse Generator User Manual 5

Pulse waveform examples
Figure 4: Negative pulse
The following figures show typical positive and negative waveforms with the
pattern generator Duration control set to minimum. The displays are set to
10 V/div and 1 ns/div.
Figure 5: Minimum duration positive pulse
6 Tektronix PSPL2600C Pulse Generator User Manual