SFG-2120 20MHz DDS Function Generator
 
 

 

FEATURES
  • DDS Technology and FPGA Chip Design Frequency Range:0.1Hz~20MHz High Frequency Accuracy : ± 20ppm High Frequency Stability : ± 20ppm Frequency Resolution :100mHz Low Distortion Sine Wave:-55dBc,0.1Hz~200kHz Front Panel Setting Save/Recall with 10 Groups of Setting Memories Built-In 6 Digits, 150MHz/High Resolution Counter INT/EXT AM/FM Modulation
  • LIN/LOG Sweep Mode

  • SPECIFICATIONS

    Based on Direct Digital Synthesized (DDS) technology and unique FPGA design, SFG-2000/2100 Series Function Generators are built with exceptionally high performance far exceeding that of any conventional function generators, at a very competitive price. Stable output frequency, low distortion, and fine frequency resolution are the most remarkable characteristics of this product series.

    MAIN

    Frequency Range
    (For Sine, Square)
    1Hz~20MHz
    Frequency Range
    (For Triangle)
    1Hz~1MHz
    Frequency Resolution
    1Hz
    Frequency Stability
    ± 20 ppm
    Frequency Accuracy
    ± 20 ppm
    Frequency Aging
    ± 5 ppm / year
    Output Function
    Sine, Square, Triangle
    Amplitude Range
    2mV~10Vpp(into 50Ωload)
    Impedance
    50Ω±10?H
    Attenuator
    -20dB±1dB×2
    DC Offset
    <-5V~>+5V(into 50Ωload)
    Duty Control Range
    20% to 80%, 2Hz~1MHz (Square wave only)
    Range Resolution
    1%
    Display
    9 digits LED display

    SINE WAVE

    Harmonics Distortion
    -55dBc,0.1Hz~200kHz; -40dBc,0.2MHz~4MHz; -30dBc,4MHz~10MHz
    (Specification applied to both TTL/CMOS OFF and from MAX. to 1/10 level)
    Flatness (Relative to 1kHz)
    <± 0.3dB,0.1Hz~1MHz; < ± 0.5dB,1MHz~4MHz; < ± 2dB, 4MHz~10MHz

    TRIANGLE WAVE

    Linearity
    98?H,0.1Hz~100kHz;95%,100kHz~1MHz

    SQUARE WAVE

    Symmetry
    ± 1% of period +4ns to 0.1Hz??100kHz
    Rise or Fall Time
    25ns at maximum output.(into 50Ωload)

    CMOS OUTPUT

    Level
    4Vpp±1Vpp??15Vpp±1Vpp adjustable; Rise or Fall Time 120ns

    TTL OUTPUT

    Level
    ≧3Vpp ; Fan Out; 20 TTL load ; Rise or Fall Time 25ns

    SWEEP OPERATION

    Rate
    100:1 ratio max. and adjustable
    ( In order to get maximum sweep span, the sweep time needs to be tuned on when adjust sweep span. )
    Time
    1Sec~30Sec adjustable
    ( When the sweep time is too long, the stop frequency will reach and stay at the maximum frequency of instrument until the end of the sweep cycle. )
    Mode
    Lin./Log. switch selector

    AMPLITUDE MODULATION

    Depth & Modulation Frequency
    0~100?H ; 400Hz(INT), DC~1MHz(EXT)
    Carrier BW
    100Hz??5MHz(-3dB)
    EXT Modulation Sensitivity
    10Vpp for 100?Hmodulation

    FREQUENCY MODULATION

    Deviation & Modulation Frequency
    0~±50kHz,center at 1MHz, 400Hz fixed(INT), 1kHz fixed(EXT)
    EXT Modulation Sensitivity
    10Vpp for 10% modulation (center at 1MHz)

    FREQUENCY COUNTER

    Range
    5Hz~150MHz
    Accuracy
    Time base accuracy±1count
    Time base
    ±20ppm(23℃±5℃)after 30 minutes warm up
    Resolution
    The maximum resolution is 100nHz for 1Hz and 0.1Hz for 100MHz
    Input Impedance
    1MΩ/150pf
    Sensitivity
    ≦ 35mVrms (5Hz~100MHz)
    ≦ 45mVrms (100MHz~150MHz)
    STORE/RECALL FUNCTION
    10 groups of Setting memories
    POWER SOURCE
    AC115V±10%, AC 230V+10%/-15%, 50/60Hz

    ACCESSORIES

    Instruction manual×1
    Power Cord x 1
    GTL-101× 2
    DIMENSION & WEIGHT
    266(W)×107(H)×293(D) mm
    Approx. 3.2kg

     
     
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