Altera JNEye Manual do Utilizador descarregar pdf (Página 34)

Name Description Unit Support

in JNEye

Comments

DCD Duty Cycle

Distortion

UI Yes The DCD parameter models two types of jitter:

Positive pulse width jitter (PPWJ) and Clock DCD.

The PPWJ shortens or lengthens the logic 1

waveform. The Clock DCD emulates distorted clock

waveform effects on the transmitter output

waveform. You can select the DCD generation

method in the Transmitter Jitter/Noise Options

Window. The default DCD method is PPWJ –

(shortened positive waveform).

BUJ Bounded

Uncorrelated

Jitter

UI Yes Same as Deterministic Jitter. The default BUJ

method is Uniform distribution.

RJ Random Jitter UI-RMS or ps-

RMS

Yes RJ is assumed to be Gaussian. RJ can be specified in

either pico-second (ps-RMS) or UI-RMS.

SJ Sinusoidal

Jitter

Amplitude: UI

Frequency:

MHz

Yes Sinusoidal jitter can be specified with amplitude and

frequency.

DN Deterministic

Noise

mV Yes DN can be generated using a uniform distribution,

dual-Dirac, or truncated Gaussian method. You can

select the DN generation method in the

Transmitter Jitter/Noise Options Window. The

default DN method is uniform.

BUN Bound

Uncorrelated

Noise

mV Yes Same as DN. The default method is Truncated

Gaussian method with a Peak-to-RMS ratio of 14.

You can select the BUN generation method and

parameters in the Transmitter Jitter/Noise

Options Window.

RN Random Noise mV-RMS Yes RN is assumed to be Gaussian.

2-28

Jitter/Noise Component

UG-1146

2015.05.04

Altera Corporation

Functional Description

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