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    数位合成函数信号产生器
    型 号:SFG-2120
    品 牌:台湾固纬GWINSTEK
    技术指标:频率范围:0.1Hz~20MHz 
    海东数位合成函数信号产生器-SFG-2120-台湾固纬GWINSTEK
    简单介绍
    · 直接数位合成技术及FPGA晶片设计
    · 频率范围:0.1Hz~20MHz
    · 频率解析度:100mHz
    · 频率准确度及飘移度:+/-20ppm
    · 低失真正弦波:-55dBc,0.1Hz~200kHz
    · 输出波形:正弦波、方波、三角波
    · 具TTL及CMOS OUT
    · 前面板可设定十组储存及呼叫操作记忆
    · 内附六位数150MHz高解析度频率计
    · 具AM/FM调变及 LIN/LOG 扫描功能

    SFG-2120 数位合成函数信号产生器的详细介绍

    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 50?load)

    Impedance

    50?∮10?

    Attenuator

    -20dB∮1dB⊙2

    DC Offset

    ≌-5V°≈+5V(into 50?load)

    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?,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 50?load)

    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? ; 400Hz(INT), DC°1MHz(EXT)

    Carrier BW

    100Hz°5MHz(-3dB)

    EXT Modulation Sensitivity

    ∝ 10Vpp for 100?modulation

    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

    1M?/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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