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AVTECH ELECTROSYSTEMS AV-1021-B Instructions Manual

0 to +-10 volts, 10 mhz general-purpose lab pulse generator with ieee 488.2 and rs-232 control
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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
info@avtechpulse.com
Tel: 888-670-8729 (USA & Canada) or +1-613-686-6675 (Intl)
BOX 5120, LCD MERIVALE
http://www.avtechpulse.com/
Fax: 800-561-1970 (USA & Canada) or +1-613-686-6679 (Intl)
OTTAWA, CANADA K2C3H5
INSTRUCTIONS
MODEL AV-1021-B
0 TO ±10 VOLTS, 10 MHz
GENERAL-PURPOSE
LAB PULSE GENERATOR
WITH IEEE 488.2 AND RS-232 CONTROL
SERIAL NUMBER:
13991

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Summary of Contents for AVTECH ELECTROSYSTEMS AV-1021-B

  • Page 1 Tel: 888-670-8729 (USA & Canada) or +1-613-686-6675 (Intl) BOX 5120, LCD MERIVALE http://www.avtechpulse.com/ Fax: 800-561-1970 (USA & Canada) or +1-613-686-6679 (Intl) OTTAWA, CANADA K2C3H5 INSTRUCTIONS MODEL AV-1021-B 0 TO ±10 VOLTS, 10 MHz GENERAL-PURPOSE LAB PULSE GENERATOR WITH IEEE 488.2 AND RS-232 CONTROL SERIAL NUMBER:...

  • Page 2: Warranty

    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.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS WARRANTY........................2 TECHNICAL SUPPORT....................2 TABLE OF CONTENTS....................3 INTRODUCTION.......................5 AVAILABLE OPTIONS.....................5 SPECIFICATIONS......................6 REGULATORY NOTES....................7 FCC PART 18.......................... 7 EC DECLARATION OF CONFORMITY..................7 DIRECTIVE 2011/65/EU (RoHS)....................8 DIRECTIVE 2002/96/EC (WEEE)....................8 FIRMWARE LICENSING......................9 INSTALLATION......................10 VISUAL CHECK........................10 POWER RATINGS........................10 CONNECTION TO THE POWER SUPPLY................10 PROTECTION FROM ELECTRIC SHOCK................11 ENVIRONMENTAL CONDITIONS..................12 LABVIEW DRIVERS......................
  • Page 4 PCB 104F - KEYPAD / DISPLAY BOARD, 1/3..............35 PCB 104F - KEYPAD / DISPLAY BOARD, 2/3..............36 PCB 104F - KEYPAD / DISPLAY BOARD, 3/3..............37 MAIN WIRING........................38 PERFORMANCE CHECK SHEET.................39 Manual Reference: /fileserver2/officefiles/instructword/av-1020/av-1021-b,ed9.odt. Last modified April 29, 2020. Copyright © 2020 Avtech Electrosystems Ltd, All Rights Reserved.

  • Page 5: Introduction

    10 ns. Two logic-level outputs (normal and complemented) are also provided. These may be set to operate at TTL or ECL logic levels. The AV-1021-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.

  • Page 6: Specifications

    SPECIFICATIONS Model: AV-1021-B Outputs: One main output, One logic output, One logic-complement output. Logic output levels: May be set to operate at TTL or ECL levels. This setting applies to both the logic and logic-complement outputs. Amplitude and peak output Main output (when Z =2Ω): <...

  • Page 7: Regulatory Notes

    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 (info@avtechpulse.com) if you require assistance. EC DECLARATION OF CONFORMITY Avtech Electrosystems Ltd. P.O. Box 5120, LCD Merivale Ottawa, Ontario Canada K2C 3H5 declare that this pulse generator meets the intent of Directive 2004/108/EG for Electromagnetic Compatibility.

  • Page 8: Directive 2011/65/Eu (Rohs)

    (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.

  • Page 9: Firmware Licensing

    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.

  • Page 10: Installation

    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.

  • Page 11: Protection From Electric Shock

    Destination Region Description Option Manufacturer Part Number United Kingdom, Hong Kong, BS 1363, -AC00 Qualtek 370001-E01 Singapore, Malaysia 230V, 50 Hz AS 3112:2000, Australia, New Zealand -AC01 Qualtek 374003-A01 230-240V, 50 Hz Continental Europe, Korea, European CEE 7/7 -AC02 Qualtek 364002-D01 Indonesia, Russia “Schuko”...

  • Page 12: Environmental Conditions

    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;...

  • Page 13: Fuses

    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: Fuses #1 and #2 Fuse #4 Fuse #3...

  • Page 14: Dc Fuse Replacement

    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: Recommended Replacement Part Nominal Fuses...

  • Page 15: Front Panel Controls

    FRONT PANEL CONTROLS 1. POWER Switch . This is the main power switch. When turning the instrument on, there is normally a delay of 10 seconds before anything is shown on the main display, as the internal operating system boots up. If the main menu does not appear after 30 seconds, turn off the instrument and leave it off for at least 60 seconds before applying power again.
  • Page 16 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 reversed.

  • Page 17: Rear Panel Controls

    REAR PANEL CONTROLS GATE TRIG RS-232 GPIB Note: some connectors may be in different positions than shown above, depending on the exact combination of options ordered. 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.
  • Page 18 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. 6. GPIB Connector . A standard GPIB cable can be attached to this connector to allow the instrument to be computer-controlled.

  • Page 19: General Information

    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, amplitude, and offset are all adjustable.
  • Page 20 50 ns, FIXED SYNC OUT (generated by the 2V, FIXED internal oscillator) DELAY > 0 PULSE WIDTH AMPLITUDE, VARIABLE MAIN OUTPUT OFFSET, VARIABLE ZERO VOLTS +5V (TTL) or -0.8V (ECL) LOGIC OUTPUT 0V (TTL) or -1.6V (ECL) +5V (TTL) or -0.8V (ECL) LOGIC OUTPUT 0V (TTL) or -1.6V (ECL) If the delay is negative, the order of the SYNC and OUT pulses is reversed:...
  • Page 21 The next figure illustrates the relationship between the signals when an external TTL- level trigger is used: > 50 ns TRIG TTL LEVELS (external input) (0V and 3V-5V) PROPAGATION DELAY (FIXED) 200 ns, FIXED SYNC OUT 2V, FIXED DELAY > 0 PULSE WIDTH AMPLITUDE, VARIABLE MAIN OUTPUT...

  • Page 22: Trigger Modes

    TRIG TTL LEVELS (external input) (0V and 3V-5V) PROPAGATION DELAY (FIXED) ≈ PW AMPLITUDE, VARIABLE MAIN OUTPUT OFFSET, VARIABLE ZERO VOLTS +5V (TTL) or -0.8V (ECL) LOGIC OUTPUT 0V (TTL) or -1.6V (ECL) +5V (TTL) or -0.8V (ECL) LOGIC OUTPUT 0V (TTL) or -1.6V (ECL) The delay, pulse width, and frequency (when in the internal mode), of the OUT pulse can be varied with front panel controls or via the GPIB or RS-232 computer interfaces.

  • Page 23: Pulse Width Modes

    PULSE WIDTH MODES This instrument has two pulse width modes:  Normal: the instrument controls the output pulse width.  PW : the output pulse width equals the pulse width of the trigger signal on the “TRIG” connector. The instrument must be in the external trigger mode. These modes can be selected using the front panel pulse width menu, or by using the appropriate programming commands.

  • Page 24: Operational Check

    2. Turn on the AV-1021-B. The main menu will appear on the LCD. 3. To set the AV-1021-B to trigger from the internal clock at a PRF of 1 MHz: a) The arrow pointer should be pointing at the frequency menu item. If it is not, press the MOVE button until it is.
  • Page 25 5. To set the pulse width to 150 ns: a) Press the MOVE button until the arrow pointer is pointing at the pulse width menu item. b) Press the CHANGE button. The pulse width submenu will appear. Rotate the ADJUST knob until the pulse width is set at 150 ns. c) The arrow pointer should be pointing at the “Normal”...
  • Page 26 11. Go to the output impedance menu, and set the output impedance (Z ) to 50 Ω. If a 50 Ω load is attached to the output (see step 1) the amplitude should fall by a factor of 2, to 5V. 12.
  • Page 27 a) Press the MOVE button until the arrow pointer is pointing at the logic menu item. b) Press MOVE until the arrow pointer is pointing at the “ECL level” choice. c) Press CHANGE to return to the main menu. 18. Observe the waveform. You should see 150 ns wide pulses, swinging between -1.6V and -0.8V (approximately).

  • Page 28: Programming Your Pulse Generator

    PROGRAMMING YOUR PULSE GENERATOR KEY PROGRAMMING COMMANDS The “Programming Manual for -B Instruments” describes in detail how to connect the pulse generator to your computer, and the programming commands themselves. A large number of commands are available; however, normally you will only need a few of these.

  • Page 29: All Programming Commands

    volt:low -2 (sets the DC offset to -2 V) output on (turns on the output) In the above example, the pulse width of the output was set by a programming command. To set the output pulse width to track the trigger pulse width in external mode, use: *rst (resets the instrument)
  • Page 30 :DELay <numeric value> :DOUBle [:STATE] <boolean value> :DELay <numeric value> :GATE :TYPE ASYNC | SYNC :LEVel HIgh | LOw [SOURce]: :VOLTage [:LEVel] [:IMMediate] [:AMPLitude] <numeric value> :LOW <numeric value> :PROTection :TRIPped? [query only] STATUS: :OPERation :[EVENt]? [query only, always returns "0"] :CONDition? [query only, always returns "0"] :ENABle...

  • Page 31: Mechanical Information

    MECHANICAL INFORMATION TOP COVER REMOVAL If necessary, the interior of the instrument may be accessed by removing the four Phillips screws on the top panel. With the four screws removed, the top cover may be slid back (and off). Always disconnect the power cord and allow the instrument to sit unpowered for 10 minutes before opening the instrument.

  • Page 32: Maintenance

    MAINTENANCE REGULAR MAINTENANCE This instrument does not require any regular maintenance. On occasion, one or more of the four rear-panel fuses may require replacement. All fuses can be accessed from the rear panel. See the “FUSES” section for details. CLEANING If desired, the interior of the instrument may be cleaned using compressed air to dislodge any accumulated dust.

  • Page 33: Wiring Diagrams

    WIRING DIAGRAMS WIRING OF AC POWER M a ins circuits - ha z ard ou s live . Do not attem pt any repairs on this instrument bey ond the fuse replacement procedures described in the m anual. Contact Av tech if the instrument A3 - BLACK requires serv icing.

  • Page 34: Pcb 158R4 - Low Voltage Power Supply

    PCB 158R4 - LOW VOLTAGE POWER SUPPLY...

  • Page 35: Pcb 104F - Keypad / Display Board, 1/3

    PCB 104F - KEYPAD / DISPLAY BOARD, 1/3 Amp 5 4 9 9 9 1 0 -1 , 1 0 p in strai g h t h ead er LC D-BU TT LC D-BU TT. SCH SD A SD A SC L SC L GN D...

  • Page 36: Pcb 104F - Keypad / Display Board, 2/3

    PCB 104F - KEYPAD / DISPLAY BOARD, 2/3 U4 A VC C C1 0 VC C BU T1 VC C 2 . 2 u F C1 5 C1 3 0 . 1 u F 0 . 1 u F 0 . 1 u F 0 .

  • Page 37: Pcb 104F - Keypad / Display Board, 3/3

    PCB 104F - KEYPAD / DISPLAY BOARD, 3/3 VC C VC C 0 . 1 u F 2 . 2 u F GN D VC C VC C VC C SD A SD A SC L SC L GN D PA D3 PA D4 PC F8 5 7 4 AN (MU ST HA VE "A"...

  • Page 38: Main Wiring

    CHANG ES REQ UIRED O N 295F: 1. REMO VE R1 LOGIC ORANGE 2. INST ALL R3 = 0 AV-1021-B BOARD A V-1 02 1 -B W IR ING Printed Revisi on 2 9-A pr-2 02 0 Z :\engineering\circuits\Av-1021\av-1021.Ddb - Av -1021-B\1021W IR E V7.SC H...

  • Page 39: Performance Check Sheet

    PERFORMANCE CHECK SHEET...

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13991

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