Specifications

3-4 Operation
DS360 Ultra Low Distortion Function Generator
Setting Functions
The following section describes how to set the parameters for the basic functions of the DS360, including
function type, frequency, amplitude, offset and function on/off.
Function Type
The DS360 output function type is selected using the [∧] up and [∨] down function
arrow keys. Press the appropriate key until the desired function LED is lit. The peak-to-
peak amplitude will remain the same between different functions. If the amplitude is
displayed in any other units, they will be adjusted to reflect a constant peak-to-peak
voltage. If the modify function is enabled and the type is incompatible with the new
function, the modify function will be changed to a legal value (the parameters will
remain unchanged).
The available functions are sinewaves, squarewaves, white noise, pink noise and two-
tones. Sinewaves and squarewaves are self explanatory. White Noise is a Gaussian
weighted distribution, filtered to 200 kHz and is flat in amplitude over that region. Pink
Noise extends from 10 Hz to 200 kHz with a -3 dB/octave amplitude response. There are
two types of 2-Tones; sine-sine 2-tones and sine-square 2-tones. To display the current
mode, press [SHIFT][T2 MODE]. To change modes, press the [>] right or [<] cursor
key, or turn the spin knob. When in 2-Tone, only one set of parameters (amplitude,
frequency) are available at a time. To toggle between displaying Tone 1 and Tone 2
parameters, press [SHIFT][T1/T2].
Frequency
To display the current output frequency, press the [FREQ] key. The frequency is
displayed in Hz or kHz, depending on which unit LED is lit. The DS360 has 6 digits of
frequency resolution or 10 mHz, whichever is greater. Any non displayed digits are
zeroed to avoid having slightly different output frequencies for a given display value.
The frequency ranges and resolution are shown in the table below.
Frequency Range of Functions
Function Frequency Range Frequency Resolution
Sinewaves 0.01 Hz - 200.000 kHz 0.01 Hz or 6 digits
Squarewaves 0.01 Hz - 200.000 kHz 0.01 Hz or 6 digits
White Noise 200 kHz White Noise (fixed)
Pink Noise 200 kHz Pink Noise (fixed)
Sine-Sine Two-Tone
Tone1 & Tone2 0.01 Hz - 200.000 kHz 0.01 Hz or 6 digits
Sine-Square Two-Tone
Tone1 (Sine)
Tone2 (Square)
0.01 Hz - 200.000 kHz
0.1 Hz - 5.0 kHz
0.01 Hz or 6 digits
2 digits