86100DU [KEYSIGHT]

Advanced EYE Analysis Software;


型号：	86100DU
厂家：	Keysight Technologies
描述：	Advanced EYE Analysis Software
文件：	总2页 (文件大小：1138K)
中文：	中文翻译
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Keysight and 86100DU-401

Advanced EYE Analysis Software

Provides a simple and accurate solution to the challenging process of measuring jitter

on very long patterns and performs precision mask testing using BER contours

TJ (p-p)

RJ (rms)

86100 Series Option 401 is an advanced software application providing:

DJ (δδ)

– Compliant jitter measurements such as:

– Random Jitter (RJ)

– Deterministic Jitter (DJ)

– Total Jitter (TJ)

– J2 Jitter

– J9 Jitter

Data Signal Results

Mark

Date Rate

10.0E+0 GHz

0.508

Density

Jitter Results

TJ (BER)

1.0E-12

TJ (p-p) 21.6E-12 sec RJ (rms) 880.0E-15 sec DJ (δδ) 9.6E-12 sec

J9 20.3E-12 sec DDPWS 400.9E-3 sec

11.6E-12 sec

Amplitude Results

TI (BER)

1.0E-12

TI (p-p) 83.0E+0 mV RN (rms) 638.8E+0 uV DN (δδ) 74.1E+0 mV

Eye Opening

223.1E+0 mV

Notes

– Data Dependent Pulse Width Shrinkage (DDPWS)

– Jitter measurements on long patterns, including PRBS23, PRBS31,

and live traffic.

TI (p-p)

RN (rms)

DN (δδ)

Figure 1 – Jitter and Amplitude Results

while testing with PRBS31 pattern.

– Precision mask testing capability using BER contour- based masks.

The 86100C DCA-J and 86100D

DCA-X offer the optimum combination

of low intrinsic jitter, low noise, and wide

bandwidth. As a result, the DCA is the tool

Make accurate and compliant

jitter measurements on long

patterns.

of choice for making precision measure-

ments on high-speed digital designs.

To ensure that digital communications

systems approach error-free performance,

data test patterns that emulate actual

traffic are often used. Some of these test

patterns can be extremely long and can be

problematic for test instruments. Option

401 software makes precision jitter

measurements on long data patterns,

such as PRBS23, PRBS31, and live traf-

fic. By way of example, PRBS31 is often

used when testing 10GbE (802.3ae-2002),

40GbE/100GbE (802.3ba-draft), and SFP+

(SFF-8431).

Option 401 runs on an external PC, or DCA

mainframe, running Microsoft Office Excel

2003/2007. It extracts waveforms from the

DCA and processes them in MS Excel. For

the highest accuracy jitter measurements

the application leverages measurements

made by 86100C/D-200 Enhanced Jitter

Analysis (Jitter Mode). Alternatively, it can

also operate standalone if Jitter Mode is

not installed - the choice is yours!

Standards like SFF-8431 continue to

evolve and new measurements are

often the result. Data Dependent Pulse

Width Shrinkage (DDPWS), a compo-

nent of Data Dependent Jitter (DDJ), is

reported by Option 401 when operating

together with 86100C/D-200.

Measure with confidence

using the accuracy and ease-of-

use of the 86100C and 86100D

Infiniium Digital Communication

Analyzer (DCA).

Accurate jitter measurements are achieved

as the result of accurate waveform

measurements and robust algorithms.

Figure 2 – Perform compliant jitter

measurements easily and accurately

using the 86100C DCA-J or 86100D

DCA-X Option 401 Advanced EYE Analysis

Compliant BER-contour Based

Mask Testing

Calibrate Stressed

Eye Transmitters

86100 Software:

– 86100CU-401 Advanced EYE

Analysis or 86100DU-401

Advanced EYE Analysis

– 86100C/D-200 Enhanced

Jitter Analysis (required for DDPWS,

optional for all

Sampling scopes, due to their unmatched

signal fidelity, continue to be the de facto

standard for mask testing. However,

some specifications like CEI 2.0 and XFP

MSA, specify an eye mask test based on a

specified BER such as 1E-12. While these

masks can be modified and run using

traditional scope-based mask testing,

it’s now possible to perform BER-contour

based mask testing using Option 401.

The dual-Dirac model is commonly used

in technology standards to quickly and

accurately estimate total jitter defined at

a low BER such as TJ @ 1E-12. However,

calibrating a stressed eye transmitter with

large amounts of jitter can often be a

challenge for test equipment using

other measurements)

Note - For ultra-low level jitter measurements

(RJ<500fs) we recommend using Option-401

in conjunction with 86100C/D-200.

this standards-based estimation

technique. In the presence of increasing

RJ injection, for example, reported DJ will

tend to decrease and seem to “disappear”

on BERTs and scopes using this model.

J2 jitter, sometimes referred to as “99%

Jitter” or “all but 1% for jitter”, is some-

times used by engineers when calibrating

stressed-eye signals for receiver testing.

Why? J2 “measures” jitter directly from

histogram data rather than “estimating”

jitter based on models. IEEE 802.3ae

(2002) and draft specifications such as

IEEE 802.3ba and SFF-8431 are examples

of standards that use this high probability

jitter measurement. J9 Jitter is “all but

10E-9” of the jitter distribution and is

estimated at a BER of 2.5E-10.

PC Software:

86100CU-401 and 86100DU-

401 Measurements

– Microsoft Office Excel2003 or

Excel 2007

– Keysight Technologies, Inc. IO

Libraries Suite Rev 15.0 (or later)

The application performs the following

measurements:

Optional Hardware:

Jitter Measurements

– External PC

Total Jitter (TJ), Random Jitter (RJ),

Deterministic Jitter (DJ), J2 Jitter (J2), J9

Jitter (J9), Data Dependent Pulse Width

Shrinkage (DDPWS)*

– 82357B USB/GPIB Interface USB 2.0

Instrument control is made using either

LAN or GPIB.

* Requires 86100C/D-200

For more information visit:

www.keysight.com/find/eye

www.keysight.com/find/emailupdates

www.keysight.com/find/dcax

Amplitude Measurements

Total Interference (TI), Random Noise (RN),

Deterministic Interference (DI),

Eye Opening.

86100CU-401 and 86100DU-401 are ca-

pable of measuring jitter in excess of 0.7UI

so they are an ideal solution for calibrating

stressed eye transmitters. It also reports

J2 and J9, thereby saving engineers from

having to measure histogram data and

calculate these parameters offline.

Mask Test

Pass/Fail Status, BER limit.Standards

based BER contour masks, such as

OIF-CEI-2.0 and XFP, included. User-

defined masks also supported.

Typical System Configurations

Advanced EYE Analysis software

Figure 4 – A typical hardware configuration

includes 86100C C/D DCA Wideband

oscilloscope and an 86108A Precision

Waveform Analyzer.

application operates with any 86100C/D

hardware configuration. It performs com-

pliant jitter and mask measurements on

optical or electrical signals. Option-401

is ordered as a software upgrade and is

licensed to a single 86100C/D mainframe

using the instruments’s host ID and

serial number.

For more information on Keysight Technologies’

products, applications or services, please

contact your local Keysight office.

Figure 3 −Precision mask testing using BER

contours. Image shows 1E-12 contour (red

line) compared to OIF-CEI 2.0 mask.

86100 Hardware:

The complete list is available at:

– 86100C or 86100D Mainframe

– 86100C-001 Enhanced Trigger or

86100D-ETR Enhanced Trigger

(required for DDPWS, otherwise

optional)

www.keysight.com/find/contactus

This information is subject to change without notice.

Published in USA, July 31, 2014

5990-3818EN

– Any DCA measurement module

www.keysight.com

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