Avtech AV-1021-B Instructions Manual
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Avtech AV-1021-B Instructions Manual

General purpose lab pulse generator
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P.O. BOX 265
OGDENSBURG, NY
U.S.A. 13669-0265
TEL: (315) 472-5270
FAX: (613) 226-2802
A V T E C H
TEL: 1-800-265-6681
FAX: 1-800-561-1970
e-mail: info@avtechpulse.com
http://www.avtechpulse.com/
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: ____________
E L E C T R O S Y S T E M S
N A N O S E C O N D
W A V E F O R M
S I N C E
E L E C T R O N I C S
1 9 7 5
BOX 5120, LCD MERIVALE
X
OTTAWA, ONTARIO
CANADA
TEL: (613) 226-5772
FAX: (613) 226-2802
L T D .
K2C 3H4

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Summary of Contents for Avtech AV-1021-B

  • Page 1 K2C 3H4 TEL: (315) 472-5270 e-mail: info@avtechpulse.com TEL: (613) 226-5772 FAX: (613) 226-2802 http://www.avtechpulse.com/ FAX: (613) 226-2802 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

    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.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS WARRANTY........................2 TECHNICAL SUPPORT....................2 TABLE OF CONTENTS....................3 INTRODUCTION......................5 AVAILABLE OPTIONS....................5 SPECIFICATIONS......................6 EUROPEAN REGULATORY NOTES................7 EC DECLARATION OF CONFORMITY..................7 DIRECTIVE 2002/95/EC (RoHS)....................7 INSTALLATION....................... 8 VISUAL CHECK........................8 POWER RATINGS........................8 CONNECTION TO THE POWER SUPPLY................8 PROTECTION FROM ELECTRIC SHOCK................9 ENVIRONMENTAL CONDITIONS....................
  • Page 4 PCB 104D - KEYPAD / DISPLAY BOARD, 2/3..............38 PCB 104D - KEYPAD / DISPLAY BOARD, 3/3..............39 MAIN WIRING......................... 40 BURST MODE OPTION (-BR) WIRING................. 41 PERFORMANCE CHECK SHEET................42 Manual Reference: Z:\officefiles\instructword\av-1020\av-1021-b,edition4.odt. Last modified November 11, 2005. Copyright © 2005 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 GPIB and RS-232 control: Included. See http://www.avtechpulse.com/gpib for details. LabView Drivers: Check http://www.avtechpulse.com/labview/ for availability and downloads Auxiliary logic-level outputs: Logic and Logic-Inverted. May be set to TTL or ECL levels. Amplitude and peak output Main output: 0 to ±10 V (when Z =2Ω), 0 to ±5 V (when Z...

  • Page 7: European Regulatory Notes

    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.

  • Page 8: 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 9: Protection From Electric Shock

    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.

  • Page 10: Labview Drivers

    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/.

  • Page 11: 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 12: 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: Nominal Manufacturer’s Distributor’s...

  • Page 13: Front Panel Controls

    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.
  • Page 14 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.

  • Page 15: Rear Panel Controls

    REAR PANEL CONTROLS GRN=LNK GATE YEL=ACT TRIG RS-232 GPIB 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.
  • Page 16 “Programming Manual for -B Instruments” for more details on RS-232 control. 8. LAN Connector and Indicator . (Optional feature. Present on -TNT units only.) The -TNT option "Internet-enables" Avtech pulse generators by adding this standard Ethernet port to the rear panel, in addition to the IEEE-488.2 GPIB and RS-232 ports normally found on "-B"...

  • Page 17: 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 18 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...
  • Page 19 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- PROPAGATION DELAY (FIXED) 200 ns, FIXED SYNC OUT 2V, FIXED DELAY > 0 PULSE WIDTH AMPLITUDE, VARIABLE...

  • Page 20: Trigger Modes

    TRIG TTL LEVELS (external input) (0V and 3V- PROPAGATION DELAY (FIXED) ≈ PW AMPLITUDE, MAIN OUTPUT VARIABLE 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...

  • Page 21: 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 22 PERIOD = 1 / FREQUENCY SYNC OUT (generated by the internal oscillator) BURST COUNT (N), VARIABLE FROM 1 TO 500. PULSE WIDTH DELAY (N = 3, IN THIS EXAMPLE) (VARIABLE) (VARIABLE) MAIN OUTPUT BURST PULSE SEPARATION The figure below shows burst mode operation used with external triggering: >...
  • Page 23 pulse repetition frequency specification for the instrument. For this instrument, the maximum PRF for the instrument is 10 MHz, so the time between two leading edges within the burst may not be smaller than 1.0 microseconds. The total number of pulses per second (i.e., Trigger Frequency x Burst Count) must also be less than 10 MHz.

  • 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 :HOLD WIDTh | DCYCle :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"]...

  • Page 31: Mechanical Information

    There are no user-adjustable internal circuits. For repairs other than fuse replacement, please contact Avtech (info@avtechpulse.com) to arrange for the instrument to be returned to the factory for repair. Service is to be performed solely by qualified service personnel.

  • 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 TPVP103-240042 is installed using four M2.5-0.45X12 screws. POWER SWITCH SW32 5 -ND ( CW IND USTRIES GRS-4 0 22 -0 0 1 3 ) ROUTE TPVP103-240042 WIRES TOWARDS THE REAR. Crimp switch with: Molex 19002-0009. 0.187" x 0.032" 22-01- 1022, A3 - BLACK A1 - YELLOW...

  • Page 34: Pcb 158E - Low Voltage Power Supply, 1/3

    PCB 158E - LOW VOLTAGE POWER SUPPLY, 1/3 p cb 1 58 e_ o v p p cb 1 58 e_ o v p.sch +1 5V +1 5V +1 5V GN D GN D P-OU T # 1 P-OU T # 1 -1 5 V -1 5 V -1 5 V...

  • Page 35: Pcb 158E - Low Voltage Power Supply, 2/3

    PCB 158E - LOW VOLTAGE POWER SUPPLY, 2/3 FOR TRANSFORMER VERSIONS ONLY. NOT NORMALLY INSTALLED. 8 3 08 3 5 FUSEHO LDER 0 , FOR -24 AC, O R DC, N ORMA LLY IN STA LLED. RS40 7 L R2 3 6 4 04 4 5 -6 TEST-LOO P TEST-LOO P...

  • Page 36: Pcb 158E - Low Voltage Power Supply, 3/3

    PCB 158E - LOW VOLTAGE POWER SUPPLY, 3/3 REXT CC R1 3 CAPBANK 0 , IF CC BY PASSED . NO T NO RMALLY INSTALLED. C2 3 1 0 00 u F,3 5 V (P5 16 9 -ND ) SHO RTS OU T B ASE WHEN C HAR GING. R1 5 RELA Y - PS7 2 00 0 , IF OLO USES IN T PS.

  • Page 37: Pcb 104D - Keypad / Display Board, 1/3

    PCB 104D - KEYPAD / DISPLAY BOARD, 1/3 AH E10 G- ND, Mfg 49 9 9 10 -1 , 1 0 pin straig h t h ead er LCD-BUTT LCD-BUTT.SCH GN D GN D VCC-LED VCC-LED BACKLIG HT BACKLIG HT ENCOD ER ENCOD ER.SCH I2 C_ INT...

  • Page 38: Pcb 104D - Keypad / Display Board, 2/3

    PCB 104D - KEYPAD / DISPLAY BOARD, 2/3 U4 A C1 0 PIN3 2 .2 u F C1 5 C1 3 1 5 K MM7 4H C1 4 N 0 .1 u F 0 .1 u F 0 .1 u F 0 .1 u F GN D U4 B...

  • Page 39: Pcb 104D - Keypad / Display Board, 3/3

    PCB 104D - KEYPAD / DISPLAY BOARD, 3/3 2 2 uF 0 .1 u F GN D IN T GN D PAD 3 PAD 4 PCF8 5 7 4A PN LED+ LED- U1 A U1 C MM7 4H C1 4 N MM7 4H C1 4 N 2 .7 OH M, 2 W U1 B...

  • Page 40: Main Wiring

    OP1 B MAIN BOA RD, PCB 1 0 8M4 NO T LOG IC BLUE LOG IC 9 -PIN POWER H ARNESS ORA NGE AV -1 0 21 -B BO ARD LOG IC AV-1021-B WIRING Printed Rev ision 11-Nov-2005 Z: \mjcfiles\circuits\Av-1021\av-1021.ddb - Av-1021-B\1021WIRE V4.SCH...

  • Page 41: Burst Mode Option (-Br) Wiring

    BURST MODE OPTION (-BR) WIRING...

  • Page 42: Performance Check Sheet

    PERFORMANCE CHECK SHEET...

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