Avtech AV-141C1-PS User manual

INSTRUCTIONS
MODEL AV-141C1-PS
×10 GAIN, ±3V OUTPUT
PULSE AMPLIFIER
WITH 800 ps RISE AND FALL TIMES
SERIAL NUM ER: 14169
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
[e-mail]
http://www.avtechpulse.com/
Tel: [phone] (USA & Canada)
or [phone] (Worldwide)
OX 5120, LCD MERIVALE
OTTAWA, CANADA K2C3H5

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: [phone] (USA & Canada)
or [phone] (Worldwide)
E-mail: [e-mail]
World Wide Web: http://www.avtechpulse.com
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TA LE OF CONTENTS
WARRANTY......................................................................................................................2
TECHNICAL SUPPORT...................................................................................................2
TABLE OF CONTENTS....................................................................................................3
INTRODUCTION...............................................................................................................4
SPECIFICATIONS.............................................................................................................4
REGULATORY NOTES....................................................................................................5
FCC PART 18.......................................................................................................................... 5
EC DECLARATION OF CONFORMITY..................................................................................5
DIRECTIVE 2011/65/EU (RoHS)............................................................................................6
DIRECTIVE 2002/96/EC ( EEE)............................................................................................6
INSTALLATION................................................................................................................8
VISUAL CHECK......................................................................................................................8
PO ER RATINGS..................................................................................................................8
CONNECTION TO THE PO ER SUPPLY.............................................................................8
PROTECTION FROM ELECTRIC SHOCK.............................................................................9
ENVIRONMENTAL CONDITIONS........................................................................................10
FUSES.............................................................................................................................11
AC FUSE REPLACEMENT...................................................................................................11
DC FUSE REPLACEMENT...................................................................................................12
FUSE RATINGS....................................................................................................................12
FRONT PANEL CONTROLS..........................................................................................13
REAR PANEL CONTROLS............................................................................................14
BASIC TEST ARRANGEMENT......................................................................................15
PROTECTING YOUR INSTRUMENT.............................................................................16
WIRING DIAGRAMS.......................................................................................................17
IRING OF AC PO ER.......................................................................................................17
PCB 158R5 - LO VOLTAGE PO ER SUPPLY................................................................18
MAIN IRING.......................................................................................................................19
PERFORMANCE CHECK SHEET..................................................................................2
Manual Reference: /fileserver2/officefiles/instructword/av-141/av-141c1-ps,ed6.odt.
Last modified October 22, 2021.
Copyright © 2021 Avtech Electrosystems Ltd, All Rights Reserved.
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INTRODUCTION
The Model AV-141C1-PS is high-performance bench-top amplifier instrument, designed
to amplify bipolar nanosecond rise time baseband pulses in the pulse width range of
1.5 ns and higher and CW signals in the frequency range of DC to 800 MHz.
SPECIFICATIONS
Model: AV-141C1-PS
andwidth: DC - 800 MHz
Gain: in d : 20 d
voltage gain (V/V): × 10
Rise/fall time1: 800 ps
Input impedance: 50 Ω
Peak output: (to 50 Ω) ±3 V
Output impedance: 3 Ω, approx.
Min. input pulse width: 1.5 ns
Max. input pulse width: No limit.
Equivalent input noise: 4 nV / √Hz
Connectors: SMA
Prime power: 100 - 240 Volts, 50 - 60 Hz
Dimensions: 100 mm x 215 mm x 375 mm (3.9” x 8.5” x 14.8”)
1) Measured for a pulse from 0V to maximum positive voltage output, between the 20% and 80% amplitude points.
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REGULATORY NOTES
FCC PART 18
This device complies with part 18 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. ox 5120, LCD Merivale
Ottawa, Ontario
Canada K2C 3H5
declare that this pulse generator meets the intent of Directive 2004/108/EG for
Electromagnetic Compatibility. Compliance pertains to the following specifications as
listed in the official Journal of the European Communities:
EN 50081-1 Emission
EN 50082-1 Immunity
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and that this pulse generator meets the intent of the Low Voltage Directive 2006/95/EC.
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 2011/65/EU (RoHS)
We Avtech Electrosystems Ltd.
P.O. ox 5120, LCD Merivale
Ottawa, Ontario
Canada K2C 3H5
declare that, to the best of our knowledge, all electrical and electronic equipment (EEE)
sold by the company are in compliance with Directive 2011/65/EU of the European
Parliament and of the Council of 8 June 2011 on the restriction of the use of certain
hazardous substances in electrical and electronic equipment (also known as “RoHS
Recast”). In addition, this declaration of conformity is issued under the sole
responsibility of Avtech Electrosystems Ltd. Specifically, products manufactured do not
contain the substances listed in the table below in concentrations greater than the listed
maximum value.
Material/Substance Threshold level
Lead (Pb) < 1000 ppm (0.1% by mass)
Mercury (Hg) < 1000 ppm (0.1% by mass)
Hexavalent Chromium (Cr6+) < 1000 ppm (0.1% by mass)
Polybrominated iphenyls (P ) < 1000 ppm (0.1% by mass)
Polybrominated Diphenyl ethers (P DE) < 1000 ppm (0.1% by mass)
Cadmium (Cd) < 100 ppm (0.01% by mass)
is(2-ethylhexyl) phthalate (DEHP) < 1000 ppm (0.1% by mass)
utyl benzyl phthalate ( P) < 1000 ppm (0.1% by mass)
Dibutyl phthalate (D P) < 1000 ppm (0.1% by mass)
Diisobutyl phthalate (DI P) < 1000 ppm (0.1% by mass)
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
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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.
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INSTALLATION
VISUAL CHECK
After unpacking the instrument mainframe and the transformer module, examine to
ensure that they have not been damaged in shipment. Visually inspect all connectors,
knobs, and handles. Confirm that a power cord and an instrumentation manual (this
manual), 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:
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Destination Region Description Option Manufacturer Part Number
United Kingdom, Hong Kong,
Singapore, Malaysia
S 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 378001-E01
South Africa, India SA S 164-1,
220-250V, 50 Hz -AC17 Volex 2131H 10 C3
Japan JIS 8303,
100V, 50-60 Hz -AC18 Qualtek 397002-01
Israel SI 32,
220V, 50 Hz -AC19 Qualtek 398001-01
China G 1002-1 / 2099-1,
220V, 50 Hz -AC22 Qualtek 399012-01
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.
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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 80 % 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.
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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:
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Fuse
Drawer
Pry out the fuse
drawer using a
screwdriver.
Fuses #1 and #2
AC fuses)
Fuse #4
DC fuse)
Fuse #3
DC fuse)

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 0218.500HXP F2416-ND
#3 (DC) N/A 0.5A, 250V,
Time-Delay 5×20 mm 0218.500HXP F2416-ND
#4 (DC) N/A Not used.
A spare 0.5A 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.
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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. IN CONNECTOR. The input is applied to this SMA connector. The input voltage
must always lie between -300 mV and +300 mV. Voltages outside of this range may
damage the instrument. The input impedance is 50Ω.
4. OUT Connector . This is the output. It can drive loads impedances of 50 Ohms or
higher.
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2
1
34

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.
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2
31

ASIC TEST ARRANGEMENT
The recommended test set-up is shown above.
The Avtech AVMP-2 series can be used to generate a +9.5V pulse at 10 kHz, with 100
ns pulse width. The rise time will be 100 ps. The 30 d attenuator will reduce this signal
to 300 mV.
The AV-141C1-PS amplifier will amplify the signal to 3V. The output rise time should be
800 ps or less. (Note that if a slower input signal is used, the observed output signal will
be correspondingly slower.)
A 20 d attenuator should be placed at the input of the oscilloscope, to avoid over-
driving the input. Most high-bandwidth sampling oscilloscopes do not tolerate inputs of
more than ±1V.
The bandwidth capability of components and instruments used to display the pulse
generator output signal (attenuators, cables, connectors, etc.) should exceed 2 GHz.
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AVTECH
AV-141C1
AMPLIFIER
OUT
CONNECTOR
SAMPLING
OSCILLOSCOPE
50 OHM INPUT
IN
CONNECTOR
AVTECH
AVMP-2
PULSER
TRIG
MAIN OUTPUT
SYNC OUTPUT
20 d
ATTENUATOR
30 d
ATTENUATOR
+9.5V PULSE, 10 kHz,
100 ns PULSE WIDTH
100 ps RISE TIME
ALL CA LES: 50 OHM COAXIAL
+15V DC
POWER
SUPPLY

PROTECTING YOUR INSTRUMENT
To obtain maximum performance, the input of the AV-141C1-PS is not protected
against excessive input voltages. The input signal MUST NOT EXCEED ±300 mV! It
may be damaged by voltages greater than ±300 mV. Failures due to the application of
excessive input voltages are not covered by warranty.
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WIRING DIAGRAMS
WIRING OF AC POWER

PC 158R5 - LOW VOLTAGE POWER SUPPLY

MAIN WIRING

PERFORMANCE CHECK SHEET
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