Anritsu SQA-R MP1900A Referenzhandbuch

Product Introduction

116-Gbit/s PAM4 BERT for 400GbE/800GbE

PAM4 ED MU196040B

Signal Quality Analyzer-R

MP1900A Series

Outline of 116-Gbit/s PAM4 Error Detector for 400GbE/800GbE

•High-performance BERT for 116-Gbit/s PAM4 error-free measurement

Simplify previously difficult PAM4 error troubleshooting

•Industry-best high input sensitivity of 36 mV [email protected] Gbaud

Support more accurate evaluations up to 116-Gbit/s PAM4.

•All-in-one 58-Gbaud PAM4 receiver test solution with built-in Clock

Recovery and Equalizer functions

Support faster testing and debugging with easy measurement system

configuration

•Wideband operation: 2.4 Gbaud to 64.2 Gbaud for NRZ

2.4 Gbaud to 58.2 Gbaud for PAM4

•Support CEI-112G-VSR Stressed Receiver Input Test

•Built-in 58-Gbaud PAM4 Clock Recovery

•PAM4 symbol Capture function

•Multichannel measurement (up to 4ch/unit)

Target Applications: 100/200/400/800GbE, CEI-112G-VSR

58-Gbaud PAM4 ED Specifications

PAM4 ED MU196040B

•Baud rate: 2.4 Gbaud to 58.2 Gbaud (PAM4)

2.4 Gbaud to 64.2 Gbaud (NRZ)

•Input amplitude (max.): 1.0 Vp-p (NRZ, PAM4)

•Input sensitivity (typ., Eye Height): 36 mV at 53.125G

23 mV at 26.5625G

•Built-in Clock Recovery (NRZ/PAM4):

2.4 to 29 Gbaud or 32.1 Gbaud

51 to 58.2 Gbaud (Extension option)

•Built-in Equalizer: DFE (1.4 dB) + Low-frequency Equalizer (2 dB)*

•Analog bandwidth: >40 GHz (nominal)

•SER measurement, logic error analysis using Diagnostics Mode

*Response at <1 GHz controlled by low-frequency Equalizer function

Best Level High-Sensitivity Input Performance

High sensitivity input of 36 mV (typical at 53.125 Gbaud) simplifies

previously difficult PAM4 error troubleshooting measurements.

PAM4 PPG

MU196020A

PAM4 ED

MU196040B

Error-Free at 53.125 Gbaud

Best level PAM4 sensitivity

Typ. 36 mV EH/Eye

All-in-One BERT w/ PAM4 Built-in Clock Recovery & Equalizer

Connections with external equipment and components are eliminated.

PAM4 Jitter Tolerance measurements are simplified by the easy system

configuration.

PAM4 PPG

MU196020A

PAM4 ED

MU196040B

w/built-in

CR&EQ

・Jitter

・ISI Control

DUT

・Built-in Clock Recovery to re-time DUT

signal for 58-Gbaud PAM4 JTOL testing

・Equalizer function to open Eye of VSR

stressed signal for measuring BER

Support PAM4

Jitter Tolerance test

Support BER measurement of

closed-Eye signal with stress

CEI-112G-VSR Stressed Input Test Support

The true DUT low-error-rate Rx performance can be tested with added stress.

Item Spec. (112G-VSR-PAM4)

Baud Rate

36 to

58 Gbaud

Channel

Loss

12 dB at 26.5625 GHz

EH6

>37 mV

EW6

>0.2 UI (>3.76 ps)

Target

BER

-6

CEI-112G-VSR Rx input specification

Using MU196020A PPG output and ISI board

as calibrated signal (oscilloscope CTLE 2.5 dB

setting) supporting Rx Input standard

performance

PAM4 ED

MU196040B

Higher sensitivity performance

(E-8 or lower) than receiver

model defined by CEI VSR

standard (E-6)

Multichannel Measurement Support

・Use of two MP1900A units supports BER measurement for up to 4ch Tx and

4ch Rx, totaling 400 Gbit/s.

・The high module expandability helps cut future measuring equipment costs.

DUT

Built-in Equalizer

DUT Low-frequency Equalizer

ISI Stressed eye signal

MU196040B

Built-in Equalizer diagram

BER

Measur

ement

Combination of built-in Equalizer function and high input sensitivity

performance supports higher accuracy measurements.

Error-Free at 53.125 Gbaud

for inputting signals path

through 3 dB loss (typ.).

DFE

Decision feedback

Equalizer

FEC Symbol Capture Function (1/2)

High input sensitivity performance of 36 mV EH at 53 Gbaud plus FEC Symbol

Capture function for Pre-FEC jitter tolerance evaluation and analysis of FEC

uncorrectable errors

FEC Symbol Error detection for IEEE802.3-defined RS-FEC Codeword length and

FEC Symbol length standards

Input signal capture at timing exceeding settable FEC Symbol error threshold (1 to

32 per step), and Input Pattern Analysis function for causes of errors exceeding the

threshold

Jitter Stressed Signal

Capturing Detected FEC Symbols Errors

Test Board

SERDES/

Transceiver

MP1900A PAM4 BERT

FEC Symbol Capture Function (2/2)

Detect FEC Symbol Errors in Codeword.

The input data is captured when the number of FEC

symbol errors exceeds the threshold setting. The

causes of FEC-uncorrectable errors can be analyzed

from the captured data.

15 Errored FEC Symbols Detect!

Errored Codeword

544 FEC Symbols 544 FEC Symbols 544 FEC Symbols

1Errored FEC Symbol 2 Errored FEC Symbol

un-errored Codeword un-errored Codeword un-errored Codeword

1Errored FEC Symbol

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