
15-1
IM 701210-06E
Using the DSP Channel (Optional)
15
Chapter 15
Using the DSP Channel (Optional)
15.1 DSP Channels (Optional)
<For a description of this function, refer to page 2-50.>
What DSP Channels Are
When the /G3 option is installed, 6 dedicated computation channels (DSP1 to DSP6) are
added to the DL750/DL750P. These channels perform realtime computation such as
addition, subtraction, multiplication, and division between channels as well as
differentiation and integration using the 16 analog input channels (CH1 to CH16) as
computation sources. DSP channels can also be specified as computation sources of
other channels.
The functions of DSP channels are approximately the same as those of analog input
channels. Computed waveforms can be displayed in realtime even during roll mode
display.
Executable Computations
• Addition, Subtraction, Multiplication, and Division (+, –,
×
, and
÷
) between
Channels
See section 15.2, “Performing Addition, Subtraction, Multiplication, and Division (DSP
Channels).”
• Digital Filters (Gauss, Sharp, IIR (Butterworth), and Moving Average)
See section 15.3, “Using Filters (DSP Channels).”
• Differentiation and Integration
See section 15.4, “Performing Differentiation and Integration (DSP Channels).”
• Addition, Subtraction, Multiplication, and Division (+, –,
×
, and
÷
) with
Coefficients between Channels
See section 15.5, “Performing Addition, Subtraction, Multiplication, and Division with
Coefficients (DSP Channels).”
Comparison with Analog Input Channels (CH1 to CH16)
• The allocation of the acquisition memory of DSP channels is the same as analog input
channels.
• Like analog input channels, DSP channels can be used in all acquisition modes.
• Can be used as a trigger source of simple triggers (edge trigger, see section 6.5) and
the OR trigger/window trigger of enhanced triggers. It cannot be set as a trigger
source of other enhanced triggers.
• Computed waveform can be displayed in realtime even during roll mode display (see
page 2-4).
• Can be used as a target waveform for cursor measurement (see section 11.5).
• Can be used as a target waveform of automated measurement of waveform
parameters (see section 11.6).
• Can be used as a target channel for the dual capture function (see section 7.6).