Jitter/noise setting – Altera JNEye User Manual

Page 55

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JNEye Name

Quartus II Name

DFE Tap 2

Receiver Decision Feedback Equalizer Fix Tap Two

Coefficient

DFE Tap 3

Receiver Decision Feedback Equalizer Fix Tap

Three Coefficient

DFE Tap 4

Receiver Decision Feedback Equalizer Fix Tap Four

Coefficient

DFE Tap 5

Receiver Decision Feedback Equalizer Fix Tap Five

Coefficient

DFE Tap 6

Receiver Decision Feedback Equalizer Fix Tap Six

Coefficient

DFE Tap 7

Receiver Decision Feedback Equalizer Fix Tap

Seven Coefficient

RX Impedance
(R in Receiver Options / Termination)

Receiver On-Chip- Termination

CDR Type
Hybrid

Arria 10 Transceiver CMU PLL

CDR Bandwidth

Bandwidth in PLL Options

Jitter/Noise Setting

JNEye provides extensive jitter and noise modeling and configuration capabilities. The receiver intrinsic

jitter and noise types are categorized in the following table. You can configure each jitter and noise type

by clicking Receiver Jitter Options, which leads to the Receiver Jitter/Noise Configuration window.
JNEye uses a flat jitter/noise structure that assumes no overlapping among the jitter and noise

components. Avoid double counting when inputting or importing jitter/noise figures. In the following

figure, DJ contains DCD, ISI, PJ, and BUJ. This implies that when you specify DCD and BUJ, the DJ

should not be used or the DJ figure should not contain any DCD and BUJ components.

Table 2-12: Receiver Intrinsic Jitter and Noise Types

Name

Description

Unit

Support in

JNEye

Comments

DJ

Deterministic

Jitter

UI

Yes

You can generate the receiver DJ by using a

uniform distribution, dual-Dirac, or truncated

Gaussian method. You can select the DJ

generation method in the Receiver Jitter/Noise

Configuration Window. The default receiver

DJ method is dual-Dirac.

UG-1146

2015.05.04

Jitter/Noise Setting

2-49

Functional Description

Altera Corporation

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