Enabling Spread Spectrum Clock (N4960A-Cj1 Controller Only) - Keysight Technologies N4960A User Manual

3.22.5

Enabling Spread Spectrum Clock (N4960A-CJ1 controller only)

Keysight N4960A Serial BERT 17 and 32 Gb/s User Guide
Figure 43. Random jittered eye pattern example
6. In the Data Output Menu position the arrow next to the
RJEnable label then press the softkey corresponding to the EDIT
label.
7. Use the rotary knob to set RJEnable to OFF.
8. Press the softkey corresponding to the SEL label to accept the
entry and return to the Data Output Menu.
9. Press the softkey corresponding to the BACK label to return to
the MAIN menu.
1. In the MAIN menu position the arrow next to the Synthesizer
Menu label then press the softkey corresponding to the SEL
label.
2. In the Synthesizer Menu position the arrow next to the SSCDev
label then press the softkey corresponding to the EDIT label.
3. Enter 4500 on the numeric keypad then press the softkey
corresponding to the PPM label to set the spread spectrum to
4500 ppm.
4. In the Synthesizer Menu position the arrow next to the
SSCEnable label then press the softkey corresponding to the
EDIT label.
5. Use the rotary knob to set SSCEnable to ON.
6. Press the softkey corresponding to the SEL label to accept the
entry and return to the Synthesizer Menu. A waveform similar to
the one shown in
speed sampling scope.
Figure 44 should now be displayed on the high
Operation
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