Jitter analysis of arbitrary data (80SJARB)

The 80SJARB jitter measurement application software for the DSA8300

Series addresses IEEE 802.3ba applications requiring the J2 and J9 jitter

measurements. It also enables basic jitter measurements for NRZ data

signals including PRBS31, random traffic, and scrambled data. This

provides an entry-level jitter analysis capability with simple Dual Dirac

model jitter analysis and no pattern synchronization requirement.

80SJARB can acquire continuously in Free Run mode, delivering

acquisitions and updates beyond the IEEE minimum requirement of

10,000 data points.

Plots include jitter and eye opening bathtub curves for both measured and

extrapolated data, as well as a histogram of the acquired data.

80SJARB jitter analysis measurements

Measurement

Description

J2

J9

Tj

Deterministic jitter (Dual Dirac model)

Random jitter (Dual Dirac model)

80SJNB jitter and noise analysis

measurements

80SJNB jitter analysis

Measurement

Description

TJ at BER

Total jitter at specified BER

J2

J9

RJ

Random jitter

RJ(h)

Horizontal component of random jitter

RJ(v)

Vertical component of random jitter

RJ(d-d)

Random jitter according to the Dual Dirac model

DJ

Deterministic jitter

DDJ

Data-dependent jitter

DDPWS

Data-dependent pulse width shrinkage

DCD

Duty cycle distortion

DJ(d-d)

Deterministic jitter computed in the Dual Dirac model

PJ

Periodic jitter

PJ(h)

Horizontal component of periodic jitter

PJ(v)

Vertical component of periodic jitter

EO at BER

Horizontal eye opening at specified BER

BUJ

Bounded uncorrelated jitter

NPJ

Non-periodic jitter (uncorrelated and bounded)

SSCMagnitude

Magnitude of SSC modulation in ppm

SSCFrequency

Frequency of SSC modulation in ppm

80SJNB noise analysis

Measurement

Description

RN

Random noise

RN(v)

Vertical component of random noise

RN(h)

Horizontal component of random noise

DN

Deterministic noise

DDN1

Data-dependent noise on logical level 1

DDN0

Data-dependent noise on logical level 0

PN

Periodic noise

PN(v)

Vertical component of periodic noise

PN(h)

Horizontal component of periodic noise

EO at BER

Vertical eye opening at specified BER

BUN

Bounded uncorrelated noise

NPN

Non-periodic noise

80SJNB Advanced (Opt. JNB01) supports:

FFE (Feed Forward Equalization) to 100 Taps

DFE (Decision Feedback Equalization) to 40 Taps

Filter for support of linear filters from fixture de-embed to transmitter

equalization. Channel emulation supported for channels with >30 dB of

loss at 1st harmonic frequency

TDR (Time Domain Reflectometry)

applications

Quickly identify the exact location of faults with the 80E10B sub-millimeter resolution and

Datasheet

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