Avtech AV-1030-B User manual

INSTRUCTIONS
MODEL AV-1030-B
0 TO ±5 VOLTS, 10 MHz
GENERAL PURPOSE LAB PULSE GENERATOR
WITH 300 ps RISE TIMES
AND IEEE 4 .2, RS-232 CONTROL
SERIAL NUMBER: ____________
A V T E C H E L E C T R O S Y S T E M S L T D .
N A N O S E C O N D W A V E F O R M E L E C T R O N I C S
S I N C E 1 9 7 5
P.O. BOX 265
OGDENSBURG, NY
U.S.A. 13669-0265
TEL: -670- 729 (USA & Canada) or [phone] (Intl)
FAX: [phone] (USA & Canada) or [phone] (Intl)
[e-mail] - http://www.avtechpulse.com/
X
BOX 5120, LCD MERIVALE
OTTAWA, ONTARIO
CANADA K2C 3H4

WARRANTY
Avtech Electrosystems Ltd. warrants products of its manufacture to be free
from defects in material and workmanship under conditions of normal use. If,
within one year after delivery to the original owner, and after prepaid return by
the original owner, this Avtech product is found to be defective, Avtech shall at
its option repair or replace said defective item. This warranty does not apply to
units which have been dissembled, modified or subjected to conditions
exceeding the applicable specifications or ratings. This warranty is the extent
of the obligation assumed by Avtech with respect to this product and no other
warranty or guarantee is either expressed or implied.
TECHNICAL SUPPORT
Phone: -670- 729 (USA & Canada) or [phone] (International)
Fax: [phone] (USA & Canada) or [phone] (International)
E-mail: [e-mail]
World Wide Web: http://www.avtechpulse.com
2

TABLE OF CONTENTS
WARRANTY......................................................................................................................2
TECHNICAL SUPPORT...................................................................................................2
TABLE OF CONTENTS....................................................................................................3
INTRODUCTION...............................................................................................................5
SPECIFICATIONS.............................................................................................................6
REGULATORY NOTES....................................................................................................7
FCC PART 18.......................................................................................................................... 7
EC DECLARATION OF CONFORMITY..................................................................................7
DIRECTIVE 2002/95/EC (RoHS).............................................................................................8
DIRECTIVE 2002/96/EC ( EEE)............................................................................................8
AC PO ER SUPPLY REGULATORY NOTES.......................................................................9
INSTALLATION..............................................................................................................10
VISUAL CHECK.................................................................................................................... 10
PO ER RATINGS................................................................................................................10
CONNECTION TO THE PO ER SUPPLY...........................................................................10
PROTECTION FROM ELECTRIC SHOCK...........................................................................11
ENVIRONMENTAL CONDITIONS.........................................................................................12
LABVIE DRIVERS..............................................................................................................12
FUSES.............................................................................................................................13
AC FUSE REPLACEMENT...................................................................................................13
DC FUSE REPLACEMENT...................................................................................................14
FUSE RATINGS....................................................................................................................14
FRONT PANEL CONTROLS..........................................................................................15
REAR PANEL CONTROLS............................................................................................17
GENERAL INFORMATION.............................................................................................19
BASIC PULSE CONTROL....................................................................................................19
TRIGGER MODES................................................................................................................ 22
PULSE IDTH MODES........................................................................................................23
PULSE IDTH – AMPLITUDE INTERACTION.....................................................................23
GATING MODES...................................................................................................................23
MINIMIZING WA EFORM DISTORTIONS....................................................................24
USE 50 OHM TRANSMISSION LINES AND LOADS............................................................24
3

USE LO -INDUCTANCE LOADS........................................................................................24
TYPICAL WA EFORMS................................................................................................25
OPERATIONAL CHECK.................................................................................................26
PROGRAMMING YOUR PULSE GENERATOR............................................................29
KEY PROGRAMMING COMMANDS.....................................................................................29
ALL PROGRAMMING COMMANDS......................................................................................30
MECHANICAL INFORMATION......................................................................................32
TOP COVER REMOVAL.......................................................................................................32
RACK MOUNTING................................................................................................................32
ELECTROMAGNETIC INTERFERENCE..............................................................................32
MAINTENANCE..............................................................................................................33
REGULAR MAINTENANCE...................................................................................................33
CLEANING............................................................................................................................ 33
WIRING DIAGRAMS.......................................................................................................34
IRING OF AC PO ER.......................................................................................................34
PCB 158N - LO VOLTAGE PO ER SUPPLY, 1/3...........................................................35
PCB 158N - LO VOLTAGE PO ER SUPPLY, 2/3...........................................................36
PCB 158N - LO VOLTAGE PO ER SUPPLY, 3/3...........................................................37
PCB 104E - KEYPAD / DISPLAY BOARD, 1/3.....................................................................38
PCB 104E - KEYPAD / DISPLAY BOARD, 2/3.....................................................................39
PCB 104E - KEYPAD / DISPLAY BOARD, 3/3.....................................................................40
MAIN IRING........................................................................................................................41
PERFORMANCE CHECK SHEET.................................................................................42
Manual Reference: /fileserver2/officefiles/instructword/av-1030/av-1030-b,edition6.odt.
Last modified May 14, 2012.
Copyright © 2012 Avtech Electrosystems Ltd, All Rights Reserved.
4

INTRODUCTION
The Avtech AV-1030-B is a versatile, general-purpose, low-cost, GPIB and RS232-
equipped 10 MHz laboratory pulse generator, useful everywhere from undergraduate
university classrooms to the most advanced research and development laboratories.
This pulse generator features variable pulse repetition frequency (PRF), delay, pulse
width, and amplitude. It also features an exceptionally fast 300 ps rise and 350 ps fall
times.
The AV-1030-B is a highly flexible instrument. Aside from the internal trigger source, it
can also be triggered or gated by external TTL-level signals. A front-panel pushbutton
or a computer command can also be used to trigger the instrument. In the external
trigger mode, the output pulse width can be set by the pulse generator, or it can be set
to follow the input trigger’s pulse width.
The main output has all of its characteristics variable, and is designed to drive 50Ω
loads. (A 50Ω load is required for proper operation.) The main output is AC-coupled.
Two logic outputs (TTL and ECL) have approximately the same timing characteristics
as the main output, but have their amplitudes fixed at standard logic levels.
A synchronizing trigger output is also supplied, for triggering oscilloscopes and other
test equipment (50 ns wide, +3V into 50Ω).
Several points should be noted when operating this instrument:
This unit requires a 50 ohm load.
The maximum main output duty cycle is 10%.
The main output is AC-coupled.
The AV-1030-B features front panel keyboard and adjust knob control of the output
pulse parameters along with a four line by 40 character back-lit LCD display of the
output amplitude, polarity, pulse width, pulse repetition frequency, source resistance
and delay. The instrument includes memory to store up to four complete instrument
setups. The operator may use the front panel or the computer interface to store a
complete “snapshot” of all key instrument settings, and recall this setup at a later time.
This instrument is intended for use in research and development laboratories.
5

SPECIFICATIONS
Model: AV-1030-B
GPIB and RS-232 control: yes
Amplitude (to 50 Ohms)1: 0 to ±5 Volts
Output impedance: 50 Ohms
Rise time (20%- 0%): ≤ 300 ps
Fall time ( 0%-20%): ≤ 350 ps
Pulse repetition frequency (PRF): 1 Hz to 10 MHz
Pulse width: 10 ns to 1 ms
Required load impedance: 50 Ohms
Jitter (Sync out to pulse out): ≤ ± 25 ps ± 0.01 % of sync delay
Polarity (main output): Positive or negative (switch-selectable)
Duty cycle (max): 10 %
Waveform aberrations: Overshoot, undershoot, ringing and slope aberration are less than ± 10% at
amplitudes of 0.5V and higher1 with outputs terminating in 50 Ω.
Trigger required (Ext trig mode): + 5 Volts, ≥ 4 ns TTL
Trigger required (Gate in): 0 to 0. V (or grounded): No output
+ 2. V to + 5.0 V (or open): Normal output
Minimum propagation delay:
(Ext Trig In to Main Out) < 100 ns
Sync delay:
(Sync Out to Main Out) 0 to ± 1 ms
Sync output: +3 Volts, 50 ns, will drive 50 Ohm loads
Single pulse mode: Manual Push Button
Signal connectors: Main output: SMA
Other: BNC
LabView Drivers: -B units only: check http://www.avtechpulse.com/labview
for availability and downloads
Power requirement: 100 - 240 Volts, 50 - 60 Hz
Dimensions (H x W x D): 100 mm x 430 mm x 375 mm (3.9” x 17” x 14. ”)
Weight & chassis material: 4.5 kg (10 lb.), anodized aluminum, with blue plastic trim
Mounting & Temperature range: Any, +5°C to +40°C
1) For operation at amplitudes of less than 5% of maximum, best results will be obtained by setting the amplitude near maximum and
using external attenuators on the output.
6

REGULATORY NOTES
FCC PART 1
This device complies with part 1 of the FCC rules for non-consumer industrial,
scientific and medical (ISM) equipment.
This instrument is enclosed in a rugged metal chassis and uses a filtered power entry
module (where applicable). The main output signal is provided on a shielded connector
that is intended to be used with shielded coaxial cabling and a shielded load. Under
these conditions, the interference potential of this instrument is low.
If interference is observed, check that appropriate well-shielded cabling is used on the
output connectors. Contact Avtech ([e-mail]) for advice if you are unsure
of the most appropriate cabling. Also, check that your load is adequately shielded. It
may be necessary to enclose the load in a metal enclosure.
If any of the connectors on the instrument are unused, they should be covered with
shielded metal “dust caps” to reduce the interference potential.
This instrument does not normally require regular maintenance to minimize interference
potential. However, if loose hardware or connectors are noted, they should be
tightened. Contact Avtech ([e-mail]) if you require assistance.
EC DECLARATION OF CONFORMITY
We Avtech Electrosystems Ltd.
P.O. Box 5120, LCD Merivale
Ottawa, Ontario
Canada K2C 3H4
declare that this pulse generator meets the intent of Directive 2004/10 /EG for
Electromagnetic Compatibility. Compliance pertains to the following specifications as
listed in the official Journal of the European Communities:
EN 500 1-1 Emission
EN 500 2-1 Immunity
7

and that this pulse generator meets the intent of the Low Voltage Directive 72/23/EEC
as amended by 93/6 /EEC. Compliance pertains to the following specifications as
listed in the official Journal of the European Communities:
EN 61010-1:2001 Safety requirements for electrical equipment for
measurement, control, and laboratory use
DIRECTIVE 2002/95/EC (RoHS)
This instrument is exempt from Directive 2002/95/EC of the European Parliament and
of the Council of 27 January 2003 on the Restriction of the use of certain Hazardous
Substances (RoHS) in electrical and electronic equipment. Specifically, Avtech
instruments are considered "Monitoring and control instruments" (Category 9) as
defined in Annex 1A of Directive 2002/96/EC. The Directive 2002/95/EC only applies to
Directive 2002/96/EC categories 1-7 and 10, as stated in the "Article 2 - Scope" section
of Directive 2002/95/EC.
DIRECTIVE 2002/96/EC (WEEE)
European customers who have purchased this equipment directly from Avtech will have
completed a “WEEE Responsibility Agreement” form, accepting responsibility for
WEEE compliance (as mandated in Directive 2002/96/EC of the European Union and
local laws) on behalf of the customer, as provided for under Article 9 of Directive
2002/96/EC.
Customers who have purchased Avtech equipment through local representatives
should consult with the representative to determine who has responsibility for WEEE
compliance. Normally, such responsibilities with lie with the representative, unless
other arrangements (under Article 9) have been made.
Requirements for WEEE compliance may include registration of products with local
governments, reporting of recycling activities to local governments, and financing of
recycling activities.

AC POWER SUPPLY REGULATORY NOTES
This instrument converts the AC input power to the +24V DC voltage that powers the
internal circuitry of this instrument using a Tamura AAD130SD-60-A switching power
supply. According to the manufacturer, the Tamura AAD130SD-60-A has the following
certifications:
UL60950-1
IEC60950 -1
CSA C22.2 No. 60950- 1
EN60950 -1
and is compliant with:
EN61000-3-2
EN61000-4-2 Level 2
EN61000-4-2 Level 3 (Air Only)
EN61000-4-4 Level 3
EN61000-4-5 Level 3
EN61000-4-11
CISPR 11 and 22 FCC Part 15 Class B (conducted)
9

INSTALLATION
VISUAL CHECK
After unpacking the instrument, examine to ensure that it has not been damaged in
shipment. Visually inspect all connectors, knobs, liquid crystal displays (LCDs), and the
handles. Confirm that a power cord, a GPIB cable, and two instrumentation manuals
(this manual and the “Programming Manual for -B Instruments”) are with the instrument.
If the instrument has been damaged, file a claim immediately with the company that
transported the instrument.
POWER RATINGS
This instrument is intended to operate from 100 - 240 V, 50 - 60 Hz.
The maximum power consumption is 57 Watts. Please see the “FUSES” section for
information about the appropriate AC and DC fuses.
This instrument is an “Installation Category II” instrument, intended for operation from a
normal single-phase supply.
CONNECTION TO THE POWER SUPPLY
An IEC-320 three-pronged recessed male socket is provided on the back panel for AC
power connection to the instrument. One end of the detachable power cord that is
supplied with the instrument plugs into this socket. The other end of the detachable
power cord plugs into the local mains supply. Use only the cable supplied with the
instrument. The mains supply must be earthed, and the cord used to connect the
instrument to the mains supply must provide an earth connection. (The supplied cord
does this.)
Warning: Failure to use a grounded outlet may result in injury or death due to
electric shock. This product uses a power cord with a ground connection. It must be
connected to a properly grounded outlet. The instrument chassis is connected to the
ground wire in the power cord.
The table below describes the power cord that is normally supplied with this instrument,
depending on the destination region:
10

Destination Region Description Option Manufacturer Part Number
United Kingdom, Hong Kong,
Singapore, Malaysia
BS 1363,
230V, 50 Hz -AC00 Qualtek 370001-E01
Australia, New Zealand AS 3112:2000,
230-240V, 50 Hz -AC01 Qualtek 374003-A01
Continental Europe, Korea,
Indonesia, Russia
European CEE 7/7
“Schuko” 230V, 50 Hz -AC02 Qualtek 364002-D01
North America, Taiwan NEMA 5-15,
120V, 60 Hz -AC03 Qualtek 312007-01
Switzerland SEV 1011,
230V, 50 Hz -AC06 Qualtek 37 001-E01
South Africa, India SABS 164-1,
220-250V, 50 Hz -AC17 Volex 2131H 10 C3
Japan JIS 303,
100V, 50-60 Hz -AC1 Qualtek 397002-01
Israel SI 32,
220V, 50 Hz -AC19 Qualtek 39 001-01
China GB 1002-1,
220V, 50 Hz -AC22 Volex 2137H 10 C3
PROTECTION FROM ELECTRIC SHOCK
Operators of this instrument must be protected from electric shock at all times. The
owner must ensure that operators are prevented access and/or are insulated from
every connection point. In some cases, connections must be exposed to potential
human contact. Operators must be trained to protect themselves from the risk of
electric shock. This instrument is intended for use by qualified personnel who
recognize shock hazards and are familiar with safety precautions required to avoid
possibly injury. In particular, operators should:
1. Keep exposed high-voltage wiring to an absolute minimum.
2. Wherever possible, use shielded connectors and cabling.
3. Connect and disconnect loads and cables only when the instrument is turned off.
4. Keep in mind that all cables, connectors, oscilloscope probes, and loads must
have an appropriate voltage rating.
5. Do not attempt any repairs on the instrument, beyond the fuse replacement
procedures described in this manual. Contact Avtech technical support (see
page 2 for contact information) if the instrument requires servicing. Service is to
be performed solely by qualified service personnel.
11

ENVIRONMENTAL CONDITIONS
This instrument is intended for use under the following conditions:
1. indoor use;
2. altitude up to 2 000 m;
3. temperature 5 °C to 40 °C;
4. maximum relative humidity 0 % for temperatures up to 31 °C decreasing
linearly to 50 % relative humidity at 40 °C;
5. Mains supply voltage fluctuations up to ±10 % of the nominal voltage;
6. no pollution or only dry, non-conductive pollution.
LABVIEW DRIVERS
A LabVIEW driver for this instrument is available for download on the Avtech web site,
at http://www.avtechpulse.com/labview. A copy is also available in National
Instruments' Instrument Driver Library at http://www.natinst.com/.
12

FUSES
This instrument contains four fuses. All are accessible from the rear-panel. Two protect
the AC prime power input, and two protect the internal DC power supplies. The
locations of the fuses on the rear panel are shown in the figure below:
AC FUSE REPLACEMENT
To physically access the AC fuses, the power cord must be detached from the rear
panel of the instrument. The fuse drawer may then be extracted using a small flat-head
screwdriver, as shown below:
13
Fuses #1 and #2
(AC fuses)
Fuse #4
(DC fuse)
Fuse #3
(DC fuse)
Fuse
Drawer
Pry out the fuse
drawer using a
screwdriver

DC FUSE REPLACEMENT
The DC fuses may be replaced by inserting the tip of a flat-head screwdriver into the
fuse holder slot, and rotating the slot counter-clockwise. The fuse and its carrier will
then pop out.
FUSE RATINGS
The following table lists the required fuses:
Fuses
Nominal
Mains
Voltage
Rating Case Size
Recommended Replacement Part
Littelfuse Part
Number
Digi-Key Stock
Number
#1, #2 (AC) 100-240V 0.5A, 250V,
Time-Delay 5×20 mm 021 .500HXP F2416-ND
#3 (DC) N/A 1.6A, 250V,
Time-Delay 5×20 mm 021 01.6HXP F2424-ND
#4 (DC) N/A Not used.
A spare 1.6A fuse is installed here.
The recommended fuse manufacturer is Littelfuse (http://www.littelfuse.com).
Replacement fuses may be easily obtained from Digi-Key (http://www.digikey.com) and
other distributors.
14

FRONT PANEL CONTROLS
1. POWER Switch . This is the main power switch. When turning the instrument on,
there may be a delay of several seconds before the instrument appears to respond.
2. OVERLOAD Indicator . When the instrument is powered, this indicator is normally
green, indicating normal operation. If this indicator is yellow, an internal automatic
overload protection circuit has been tripped. If the unit is overloaded (by operating
at an exceedingly high duty cycle or by operating into a very low impedance), the
protective circuit will disable the output of the instrument and turn the indicator light
yellow. The light will stay yellow (i.e. output disabled) for about 5 seconds after
which the instrument will attempt to re-enable the output (i.e. light green) for about 1
second. If the overload condition persists, the output will be disabled again (i.e. light
yellow) for another 5 seconds. If the overload condition has been removed, the
instrument will resume normal operation.
This overload indicator may flash yellow briefly at start-up. This is not a cause for
concern.
3. OUT CONNECTOR . This SMA connector provides the main output signal, into load
impedances of 50Ω. (A 50Ω load is required.) It can generate voltages of up to ±5V.
4. SYNC OUT . This connector supplies a SYNC output that can be used to trigger
other equipment, particularly oscilloscopes. This signal leads (or lags) the main
output by a duration set by the "DELAY" controls and has an approximate amplitude
of +3 Volts to RL > 1kΩ with a pulse width of approximately 50 ns.
5. LOGIC Output . The signal on this output has approximately the timing parameters
as the main output (i.e. frequency, pulse width, and delay) but the amplitude is fixed
at either TTL logic levels (0 and +5V, approximately) or ECL logic levels
(-1.6V and -0. V, approximately), depending on the settings. When using this
output, it is recommended that it be terminated with a 50Ω load.
6. LOGIC-Complement Output . The signal on this output is the logical complement of
the signal on the LOGIC output (item 4). That is, the high and low logic levels are
15
2
3
4
7
15
6

reversed.
7. LIQUID CRYSTAL DISPLAY (LCD) . This LCD is used in conjunction with the
keypad to change the instrument settings. Normally, the main menu is displayed,
which lists the key adjustable parameters and their current values. The
“Programming Manual for -B Instruments” describes the menus and submenus in
detail.
. KEYPAD .
Control Name Function
MOVE This moves the arrow pointer on the display.
CHANGE This is used to enter the submenu, or to select the operating
mode, pointed to by the arrow pointer.
×10 If one of the adjustable numeric parameters is displayed, this
increases the setting by a factor of ten.
÷10 If one of the adjustable numeric parameters is displayed, this
decreases the setting by a factor of ten.
+/- If one of the adjustable numeric parameters is displayed, and
this parameter can be both positive or negative, this changes
the sign of the parameter.
EXTRA FINE This changes the step size of the ADJUST knob. In the extra-
fine mode, the step size is twenty times finer than in the normal
mode. This button switches between the two step sizes.
ADJUST This large knob adjusts the value of any displayed numeric
adjustable values, such as frequency, pulse width, etc. The
adjust step size is set by the "EXTRA FINE" button.
When the main menu is displayed, this knob can be used to
move the arrow pointer.
16

REAR PANEL CONTROLS
1. AC POWER INPUT . An IEC-320 C14 three-pronged recessed male socket is
provided on the back panel for AC power connection to the instrument. One end of
the detachable power cord that is supplied with the instrument plugs into this
socket.
2. AC FUSE DRAWER . The two fuses that protect the AC input are located in this
drawer. Please see the “FUSES” section of this manual for more information.
3. DC FUSES . These two fuses protect the internal DC power supplies. Please see
the “FUSES” sections of this manual for more information.
4. GATE . This TTL-level (0 and +5V) logic input can be used to gate the triggering of
the instrument. This input can be either active high or active low, depending on the
front panel settings or programming commands. (The instrument triggers normally
when this input is unconnected). When set to active high mode, this input is pulled-
down to ground by a 1 kΩ resistor. When set to active low mode, this input is pulled-
up to +5V by a 1 kΩ resistor.
5. TRIG . This TTL-level (0 and +5V) logic input can be used to trigger the instrument,
if the instrument is set to triggering externally. The instrument triggers on the rising
edge of this input. The input impedance of this input is 1 kΩ. (Depending on the
length of cable attached to this input, and the source driving it, it may be desirable
to add a coaxial 50 Ohm terminator to this input to provide a proper transmission
line termination. The Pasternack (www.pasternack.com) PE600 -50 BNC feed-thru
50 Ohm terminator is suggested for this purpose.)
When triggering externally, the instrument can be set such that the output pulse
width tracks the pulse width on this input, or the output pulse width can be set
independently.
17
GATE
TRIG
AMP RS-232
GPIB
2
3
6
1
4
57

6. GPIB Connector . A standard GPIB cable can be attached to this connector to allow
the instrument to be computer-controlled. See the “Programming Manual for -B
Instruments” for more details on GPIB control.
7. RS-232 Connector. A standard serial cable with a 25-pin male connector can be
attached to this connector to allow the instrument to be computer-controlled. See the
“Programming Manual for -B Instruments” for more details on RS-232 control.
. AMP Connector . This connector is not used on the AV-1030-B.
If any additional items are present, they are unused or inactive.
1

GENERAL INFORMATION
BASIC PULSE CONTROL
This instrument can be triggered by its own internal clock or by an external TTL trigger
signal. In either case, four output channels respond to the trigger: OUT, SYNC, LOGIC,
and LOGIC-Complement.
•OUT. This is the main output. The pulse width and amplitude are adjustable. The
maximum output voltage is ±5V.
•SYNC. The SYNC pulse is a fixed-width TTL-level reference pulse used to
trigger oscilloscopes or other measurement systems. When the delay is set to a
positive value the SYNC pulse precedes the OUT pulse. When the delay is set
to a negative value the SYNC pulse follows the OUT pulse.
•LOGIC. The signal on this output has approximately the timing parameters as
the main output (i.e. frequency, pulse width, and delay) but the amplitude is fixed
at either TTL logic levels (0 and +5V, approximately) or ECL logic levels
(-1.6V and -0. V, approximately), depending on the settings. When using this
output, it is recommended that it be terminated with a 50Ω load.
•LOGIC-Complement Output. The signal on this output is the logical complement
of the signal on the LOGIC output. That is, the high and low logic levels are
reversed.
These pulses are illustrated below, assuming internal triggering and a positive delay:
19
SYNC OUT
(generated by the
internal oscillator)
50 ns, FIXED
MAIN OUTPUT
PULSE WIDTHDELAY > 0
AMPLITUDE, VARIABLE
2V, FIXED
+5V (TTL) or -0. V (ECL)
0V (TTL) or -1.6V (ECL)
LOGIC OUTPUT
+5V (TTL) or -0. V (ECL)
0V (TTL) or -1.6V (ECL)
LOGIC OUTPUT

If the delay is negative, the order of the SYNC and OUT pulses is reversed:
The next figure illustrates the relationship between the signals when an external TTL-
level trigger is used:
20
SYNC OUT
(generated by the
internal oscillator)
50 ns, FIXED
MAIN OUTPUT
PULSE WIDTH
DELAY < 0
AMPLITUDE, VARIABLE
3V, FIXED
+5V (TTL) or -0. V (ECL)
0V (TTL) or -1.6V (ECL)
LOGIC OUTPUT
+5V (TTL) or -0. V (ECL)
0V (TTL) or -1.6V (ECL)
LOGIC OUTPUT