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home > Products > Measurement Instruments > Signal Generator > Function Generator > WF1981/WF1982/WF1983/WF1984 > Features
Product Information

Signal Generator
NEW Multifunction Generator

Not only high performance, but equipped with functions which support waveform creation

  • Sub-output function

Equipped with a sub-output. Independent frequency, waveform, phase, amplitude and DC offset. 1CH model can be used as 2CH model. (Sub-output has a maximum amplitude ±3.3V). For differential output application like using two outputs at the same time. WF1981/WF1983 as a 2CH model, WF1982/WF1984 as a 4CH model

Coinciding output of two signals used for verification of the comparator circuit. Output sine and triangle waves at different frequency.

  • Parameter-variable waveforms

Typical waveforms such as power supply related and pulse wave related are pre-installed. One example, Attenuated waveform vibration waveform. It is also possible to freely edit the vibration frequency and time constant while viewing the output.

Double pulse for power device evaluation
Double pulse waveform used for evaluating switching power devices response such as SiC.

Damped vibration
Damped vibration waveform whose amplitude decreases with time, such as a transient response.

  • Pulse edge variable function

Waveforms can be edited, such as adding overshoots to rising/falling pulse transitions. In addition to general straight lines, cosine and arbitrary waveforms can also be set.

Easily create square waves with overshoot and ringing by using the built-in 2nd order LPF waveform as a parameter-variable waveform.

  • Sequence function

Parameters such as waveform, frequency and amplitude can be set and output sequentially.
Complex waveforms can be generated with a maximum of 1023 steps.
Sequence editing can be easily done with the control software provided for download.

  • High-speed, large-capacity arbitrary waveform

Complex waveforms can be output with a long memory of up to 64 Mi words/waveform (WF1983/WF1984) and 32 Mi (WF1981/WF1982).
Total capacity Approx. 4Gi words, sampling up to 240M samples/sec.
Arbitrary waveform creating can be easily done with the control software provided for download.

  • 2-channel mode (2CH model only)

In addition to using 2 channels independently, various settings such as 2-phase, differential, constant frequency, and constant frequency ratio are possible.

  • Syncrator function

For waveform conversion of external signals. Output synchronized with externally input signal is possible. The division ratio/multiplication ratio, waveform, phase difference, etc. are also changeable.

  • Upper and lower limit function

Limiting the set value prevents excessive output due to operational errors. Range limit settings for frequency, positive and negative peaks of voltage, phase, and duty are possible.

  • Performance
Low jitter 40 ps rms or less
Improved distribution width compared to conventional models
Low distortion
Improved harmonic spurious -60dBc typ. (2Vp-p/50Ω)
THD less than 0.03% (10Hz〜20kHz、2Vp-p/50Ω)

Pursuit of lower noise
Comparison at small signal waveform

Rising time 7.7ns
Improducibility of pulse wave

  • Others
  • Amplitude setting: maximum 21 Vp-p
    Appropriate voltage application at the load end with sufficient output voltage.
  • Amplitude resolution: 16bit
    Waveform output with high reproducibility & resolution over a wide output voltage range.
  • Frequency accuracy: ± (1ppm + 4pHz)
    Frequency setting resolution: 0.01 μHz
  • Auto range: 20Vp-p/4Vp-p/0.8Vp-p
    Set the optimum range according to the output voltage. Setting resolution Minimum 0.1mVp-p
  • Floating between input and output
    Waveform output signal ground is isolated from the housing to reduce noise caused by ground loops.
    The 2CH model is also insulated between channels.
  • Control software available
    The software is equipped with basic controller functions for parameter settings and output, as well as sequence editing capabilities and the ability to create arbitrary waveforms.

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