Programmable Differential Output Voltage - Intel Agilex User Manual

Figure 4. Programmable De-emphasis
This figure shows the SSTL and HSTL standards with de-emphasis enabled.
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2.2.8. Programmable Differential Output Voltage

The programmable V
optimize the trace length and power consumption. A higher V
voltage margins at the receiver end, and a smaller V
consumption. You can statically adjust the V
the V settings in the software Assignment Editor.
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Figure 5. Differential V
This figure shows the V
Single-Ended Waveform
Differential Waveform
® ™
Intel Agilex General Purpose I/O and LVDS SERDES User Guide
18
1 UI
1 0 0 0
0 0
HIGH
LOW
settings allow you to adjust the output eye opening to
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of the true differential output.
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V
CM
V
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2. Intel Agilex I/O Features and Usage
LOW
HIGH
1 1
1 1 1 0
swing reduces power
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of the differential signal by changing
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V
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V (diff peak - peak) = 2 x V
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UG-20214 | 2019.04.02
VCCIO/2
0 0 0
swing improves
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Positive Channel (p)
Negative Channel (n)
Ground
(single-ended)
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p - n = 0 V
V
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