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  • 10 MHz AM FM FUNCTION GENERATORCOUNTER SM5078

    Table of Contents

    1.2.3.4.5.

    Introduction ,...........................TechnicalSpecifications..........................FrontPanelControls "... """""..RearPanelControls................................Operation """ """""" """"

    General Information....................................

    Safety ..,... ...,.. .........OperatingConditions""""""""""""","'"FirstTimeOperation , ,... ... ..,... ... .....ModeSelection",""""""""""""""""""Use as FunctionGenerator...... ... .., .., ... .......Modulation """"""",,""""""""""""""""

    AmplitudeModulation""""""""""""""""AMStandard,""""""""""""""""""""'"AMBalanced , ,.........................Frequency Modulation... ,. ... ... .....PulseWidthModulation."""""""" .............PulseAmplitudeModulation ... """ ........ExternalControlVCF ,.........................Useas ProgrammedFrequencyGenerator'"Use as Sweep FunctionGenerator....., ... ... ...DC Offset ',.., ' , "'..""'" ...........

    TriggerOutput , , , ,.. ..,..,... ,.. ... ,.. ,UseasExternalFrequencyCounter.., ....Maintenance " ,..., ,.Power Line Fuse Replacement... ... ... ... ... ...Despatch Procedure for Service... ... ........ListofServiceCenters ... ... ... .............

    6.

    7.8.

    Aug2006EditionRev1,2

    2

    348

    10111111121212121515151616171718192020212122222324

    !IIII.

    . INTRODUCTION

    10 MHz AM FM FUNCTION GENERATORCOUNTEB SM5078

    . FrequencyRange0.5Hz to 10MHzOperatingModes: FunctionGenerator,Frequency

    Counter,AmplitudeDisplay

    Modulation:- AM Standard&Balance,FM Int.& Ext.,PWM,

    PAM

    .

    .

    . Function Generator: -Sine, Square, Triangle, Ramp, Pulse,Invert Ramp, Invert Pulse, TIL, DC

    . Digital Frequency Readout. Digital Amplitude Readout. DC-Offset Adjustment. Internal Sweep Facilities. Square Wave Risetime Typ. 35 nsThe various signals availablefrom the SM5078 AM FM FUNCTION

    GENERATOR COUNTER makes it a versatilesignal source useful

    for mostmeasurementandtest applications.Its lowfrequencyranges

    are particularlywell suited for simulating mechanical and servo

    techniques.

    Frequenciesare read out on a 5 digit LED dIsplay with a maximum

    resolutionof 1 mHz. Additionalqualityfeatures includethe relatively

    low distortion factor of the genera~edsignals and constant

    amplitude flatness throughoutthe entire frequency range of the

    instrument. All outputs are short-circuit-proof in SM5078. The

    SM5078 can also be used in the sweep mode with an internalor

    externalsignalsource.

    3

  • ""

    TECHNICAL SPECIFICATIONS

    , OPERATING MODES: Sine,Square,Triangle,Ramp,Pulse,Invert

    Ramp, Invert Pulse, TTL, DC. Free running, internal sweep or

    external frequency modulation, AM Standard & Balanced, PWM,

    PAM. withor withoutDC offset

    FrequencyRange

    FrequencyStability

    WaveformCharacteristicsSinewave

    FrequencySineWaveDistortion

    Squarewave

    Frequency

    SquareWaveRisetimeOvershoot

    4

    0.5 Hz to 10 MHz in8 decade

    steps,variablecontrol:x 0.1to

    x1(1:10)(Multiturnforaccurate

    Setting)

  • II'

    Band width DC to 20 kHz

    Carrier Frequency : upto 10MHz

    Input Voltage : :t30V max.

    Pulse Width Modulation input (VCF): BNC connectoron rear

    panel

    :t 30 V max.Input Voltage

    Modulation Index 15to 85 % approx.

    FM input (VCF)

    Frequency change

    Input Impedance

    Input Voltage

    BNC connectoron rearpanel

    approx.1:100

    50kQ II25 pF

    :t 30V max.

    Internal Sweep Sweep speed: 20 ms to4s

    Sweep Range: approx.1:100.

    i-,Pulse Amplitude Modulation

    Input Voltage

    Depth of Modulation

    Frequency Counter

    Frequency Counter

    Frequency Range

    Accuracy

    Input Sensitivity

    Input Voltage

    Input Impedance

    Amplitude Display

    Display Range 20 mVppto 20 Vpp (Ref.

    Frequency 100kHz)

    :t 30V max.viaAM rearBNC

    80 % or better

    Internal!External,Auto ranging

    10 Hz to 40 MHz

    :t (5x 10-5+10)

    50 mVrmsto 500 mVrms

    150Vrmsmax.

    1 MO II 50pF

    6

    --'

    .. I.

    Accuracy

    General information

    Display

    +2%

    5 digitfor FunctionGeneratorand 5 Digitfor FrequencyCounter,0.5",7 segmentLED230 V, :t 10%,50 Hz,

    36 VA approx, Fuse 0.2A

    OCto +50C.,RH 95% (Max.)

    W: 205, H: 95, 0: 292 (mm)

    Approx 1.5Kg.

    Manual,BNC - BNC & Line

    Cord

    Supply

    Powerconsumption

    OperatingConditions

    Dimensions(mm)

    WeightAccessories

    Values withouttolerancesare intendedas guidelinesand represent

    characteristicsof theaverageinstrument. .

    ( Subjectto Change)

    7

    u

  • FRONT PANEL CONTROLS~ /"2~ '3

    '',

    "

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    ,

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    ->~~B

    IIIw, tqJ,~m B B mmm;"i>101,(ijll01@~~r@ I@"

    (?)I Iii 1@ 11:,1. @sj I~' @I \81I~

    @ MODE: When pressed functiongenerator, frequencycounteror

    amplitudedisplaymodeis selected,

    @ LEVEL (adjustingknob):When TRIG pushbuttonpressed, the

    triggerlevelcan be set

    @ 1:10: When pressedtheinputsignalto thefrequencycounteris

    attenuated10times.

    @ SPEED: Settingof wobbulationspeed inSweep mode,

    @ FUNC : Function s'electionswitch (DC, Triangle, Sine, Square,

    @ I @i~,I~) (~

    Ramp, Pulse),

    @ SWEEP: Activates the internal Sweep mode,

    POWER: Pushbuttonswitchforsupplyingpowertoinstrument

    @ DIGITAL DISPLAY: 5 digitfor functiongenerator,5 digit forfrequencymeter& 3 digitfor amplitudedisplay,LED indicatorsforoperatingmodes,functionsand'unitsdisplay.

    @ Trig: Used in FrequencyCountermode,in normalcondition

    triggeringis automatic,andwhenpushbuttonTRIG pressedthe

    triggerlevelcanbesetwiththehelpofLEVEl.LEO indicationfortriggeredsignal.

    @ & @ RANGE: Frequencyrangeselectionfrom0.5Hz to10MHz

    in8decadesteps.

    @ FREQUENCY: (adjustingknob) Continuousand linear

    frequencyfine adjustment,overlappingthe ranges selected,

    SettingrangefromxO.09tox 1.1( approx.)of theselectedrange.

  • by20dB fixedattenuator.When bothattenuatorpushbuttonsare

    activated, a total attenuation of 40 dB results. Including the

    amplitude control @ the max. attenuationamounts to 60 dB

    (factor1000).

    @ OUTPUT (BNC connector): Short-circuit-proofsignal outputof

    the generator.The outputimpedanceis 50 0/6000, and the max.

    output amplitude is 20 Vpp (o.c.) or 10 Vpprespectivelywhen

    terminatedwith 50 0.( For Pulse output10 Vpp in open circuit

    and 5 Vpp when terminatedin 50 0)

    OPERATION

    GeneralInformation

    The logicalfrontpanel layoutof SM5078 ensures rapidfamiliarization

    with the various functions. However, even experienced operators

    shouldnotneglectto carefullyread thefollowinginstructions,to avoid

    any operationalerrors and to be fully acquaintedwiththe instrument

    when laterinuse.

    After unpackingthe instrument,check for any mechanicaldamageor

    loose parts inside. Should there be any transportationdamage,

    inform the supplier immediatelyand do not put the instrumentinto

    operation.

    Safety

    The case chasis and all measuring parts are connected to the

    protectiveearth contact of the inlet. The mains plug shall only be

    insertedin a socket outlet providedwith a protectiveearth contact.

    The protectiveactionmustnot be negatedby the use of an extension

    cordwithouta protectiveconductor.

    REAR PANEL CONTROLS

    1(1

    @ FM (BNCconnector): ExternalinputforFM.@ AMBAl (BNC connector) : externalinputforAM Balance.

    @ PWM(BNC connector): ExternalinputforPWM .

    @ AMSTD(BNCconnector) : ExternalinputforAM Standard.

    @ Mains:Mainsinput230VAC50Hz:!:10%.

    WARNING!

    ANY INTERRUPTION OF THE PROTECTIVE CONDUCTOR

    INSIDE OR OUTSIDE THE INSTRUMENT OR DISCONNECTION

    OF THE PROTECTIVE EARTH TERMINAL IS LIKELY TO MAKE

    THE INSTRUMENT DANGEROUS. INTENTIONAL INTERRUPTION

    IS PROHIBITED. THE MAINS! LINE PLUG SHOULD BE INSERTED

    BEFORE CONNECTIONS ARE MADE TO MEASURING CIRCUITS.

    When removingthe metalcase or replacing,the instrumentmust be

    completelydisconnectedfrom the mains supply.If any measurement

    @ Fuse: Mainsfuseassembly.Sparefuseformainsis keptinside.

    10 11

    --.J