Simulated Source Settings

Use the Configure Source Type dialog to configure the fundamental settings of your simulated source waveform. Once your waveform is defined, click Output Enable button to turn on the waveform. The button is green when the waveform is enabled. To view the waveform on the oscilloscope, click the channel button in the Configure Simulation Source dialog. Select Invert Signal to invert the waveform.

Open this dialog from the Configure Simulation Source dialog.

Source Waveform Type

Use the Waveform Type field to select a Data, Clock, Function, or Load from File. The Format can be selected from NRZ or PAM4. For Function waveforms, you can select from the functions:

• Sine
• Cosine
• Square
• Triangle
• Sawtooth

For Data waveforms, use the Format field to select the type of simulated data format: NRZ or PAM4. Select the Pattern from one that is shown in the following table.

Standard Pattern Selections

Selection	Format		Command Argument	Description
	NRZ	PAM4
One - Zero	♦		OZERo	Pattern of repeating 101010…
PRBS 7 (127 symbols)	♦	♦	PRBS7	27−1 pseudo-random symbol sequence (127 symbols).
PRBS 7 (128 symbols)	♦	♦	EPRBs7	27 pseudo-random symbol sequence (128 symbols).
PRBS 9 (511 symbols)	♦	♦	PRBS9	29−1 pseudo-random symbol sequence (511 symbols).
PRBS 9 (512 symbols)	♦	♦	EPRBs9	29 pseudo-random symbol sequence (512 symbols).
PRBS 11 (2047 symbols)	♦	♦	PRBS11	211−1 pseudo-random symbol sequence (2,047 symbols).
PRBS 11 (2048 symbols)	♦	♦	EPRBs11	211 pseudo-random symbol sequence (2,048 symbols).
PRBS 13 (8191 symbols)	♦	♦	PRBS13	213−1 pseudo-random symbol sequence (8,191 symbols).
PRBS 13 (8192 symbols)	♦	♦	EPRBs13	213 pseudo-random symbol sequence (8,192 symbols).
PRBS 15 (32767 symbols)	♦	♦	PRBS15	215−1 pseudo-random symbol sequence (32,767 symbols).
PRBS 15 (32768 symbols)	♦	♦	EPRBs15	215 pseudo-random symbol sequence (32,768 symbols).
Linearity (160 symbols)		♦	LPAM4
JP01A (2 symbols)	♦		JPA	A signal with repeated sequence of 2 symbols that transition from level 0 to level 1.
JP01B (62 symbols)	♦		JPB	A signal with 15 pairs of symbols that transition from level 0 to level 1 followed by 16 pairs of symbols that transition from level 1 to level 0 for for a total of 62 symbols.
JP01C (62 symbols)	♦		JPC	A signal with 15 pairs of symbols that transition from level 0 to level 3 followed by 16 pairs of symbols that transition from level 3 to level 0 for for a total of 62 symbols.
JP03A (2 symbols)		♦	JPA	A signal with repeated sequence of 2 symbols that transition from level 0 to level 3.
JP03B (62 symbols)		♦	JPB	A signal with 15 pairs of symbols that transition from level 0 to level 3 followed by 16 pairs of symbols that transition from level 3 to level 0 for for a total of 62 symbols.
JP03C (62 symbols)		♦	JPC	A signal with 15 pairs of symbols that transition from level 0 to level 3 followed by 16 pairs of symbols that transition from level 3 to level 0 for for a total of 62 symbols.
PRBS9Q (511 symbols)		♦	PRBQ9	PRBS9Q (511 symbols).
PRBS13Q (8191 symbols)		♦	PRBQ13	PRBS13Q (8,191 symbols).
SSPRQ (65535 symbols)		♦	QSSPr	SSPRQ (65,535 symbols).

If you select Load from File, you can click Browse to select a pattern waveform file. Both .wfmx and .csv formats are supported. This feature allows you to work offline with your data. It is recommended that you also save a FlexDCA setup file when you save your original waveform. When you load the waveform file, also load the setup file to ensure that the FlexDCA settings match those of your waveform file.

Waveform Symbol Rate

Use the Waveform Data Rate field to enter the waveform's symbol rate or click Select From List to choose a standard symbol rate.

Waveform Amplitude and Offset

Use the Amplitude and Offset fields to enter the simulated waveform's amplitude and offset in volts for electrical waveforms and Watts for optical waveforms.

PAM4 Level Adjustment

Use the Level 1 and Level 2 fields to create a PAM4 waveform that has non-linearity. You can perform a Linearity measurement on this waveform in Oscilloscope mode, Eye mode, and Jitter mode. By default, level 1 is set to 33.3% and level 2 is set to 66.7%.