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TekExpress 400G Transmitter Test

Electrical Conformance and Characterization Solution for Real-Time Oscilloscopes

Electrical Conformance and Characterization Solution for Real-Time Oscilloscopes

The new Tektronix real-time instrument based OIF-CEI-56G-VSR/MR/LR, OIF-CEI-112G-VSR, IEEE: 802.3bs (200GAUI-4 and 400GAUI-8), 802.3cd (CR4, KR4), 802.3ckTM (100GAUI-1, 200GAUI-2, and 400GAUI-4), and 802.3ckTM (100GCR-1, 200GCR-2, and 400GCR-4) Transmitter Characterization automation system provides turnkey testing and debugging of the industry's most common 400G PAMJET electrical interfaces. The silicon designers need to perform the 400G based electrical validation of their silicon; the system designers need to perform the 400G based electrical validation.

Key Features

  • Offers streamlined and fully automated transmitter characterization of OIF-CEI-56G-VSR/MR/LR, OIF-CEI-112G-VSR, and IEEE: 802.3bs (200GAUI-4 and 400GAUI-8), 802.3cd (CR4, KR4), 802.3ckTM (100GAUI-1, 200GAUI-2, and 400GAUI-4), and 802.3ckTM (100GCR-1, 200GCR-2, and 400GCR-4) electrical transmitter specifications.
  • Extends PAMJET software package (PAMJET software package) for in-depth analysis and debug of fully automated conformance test solution.

Applications

  • Validation of OIF-CEI-56G-VSR/MR/LR, OIF-CEI-112G-VSR, and IEEE-802.3bs/cd standards
  • Measurements of electrical transmitter :
    • 802.3ckTM Electrical 100 Gb/s Signaling for 100GAUI-1, 200GAUI-2, and 400GAUI-4.
    • 802.3ckTM (100GCR-1, 200GCR-2, and 400GCR-4)

OIF-CEI-56G-VSR/MR/LR, OIF-CEI-112G-VSR, IEEE-802.3bs/cd, IEEE-802.3cK AUI and CR fully automated electrical transmitter real-time oscilloscope measurements

This application package is designed for a 50 GHz or higher, 70K SX instrument pair. For 100Gb/s/lane and faster the needed oscilloscope bandwidth ≥ 59 GHz 70k XS instrument pair is required; for 56 GBd and faster 70 GHz instrument will deliver the best results. The software loads the required roll-off filters with appropriate bandwidth. The low noise level of the ATI architecture serves the key signal-to-noise and distortion ratio measurements, which are attained with margin on the 70K SX systems. The solution is also available on non-70K SX systems, such as 33 GHz, higher 70K DX, and MSO instruments with an understanding that these are for debug only and not for the specification level conformance validation.

Technology Specification Section and Table reference
OIF-CEI-56G-VSR oif2017.346.03, Sections 16.B, Table 16-10
oif2017.346.03, Sections 16.3.2, Table 16-1
oif2017.346.03, Sections 16.3.3, Table 16-4
OIF-CEI-56G-MR oif2014.245.12, section 17.3, Table 17-2, 17-3
OIF-CEI-56G-LR oif2014.340.08, section 21.3, Table 21-2, 21-3
OIF-CEI-112G-VSR oif2017.346.03, Table 23-9, Section 23.B.1.1
oif2017.346.03, Table 23-1, Section 23.3.2
oif2017.346.03, Table 23-4, Section 23.3
200GAUI-4 and 400GAUI-8 IEEE 802.3bs, Annex 120D.3.1, Table 120D-1
IEEE 802.3bs, Annex 120D.3.1, Table 120E-1
IEEE 802.3bs, Annex 120E.3.2, Table 120E-3
50GBASE-CR/100GBASE-CR2/200GBASE-CR4 IEEE802.3cd, Section 136.9.3, Table 136-11
50GBASE-KR/100GBASE-KR2/200GBASE-KR4 IEEE802.3cd, Section 137.9.2
100GAUI-1, 200GAUI-2, and 400GAUI-4IEEE802.3ck, Annex 120F and Annex 120G
100GCR-1, 200GCR-2, and 400GCR-4 IEEE 802.3ck, Section 162.9.4, Table 162-11
Modulation Data Rate (GBd) Lanes Throughput (Gbps)
PAMJET 18 to 53.125 1 to N Number of lanes*2*Data Rate

OIF-CEI-56G/112G-VSR fully automated electrical transmitter measurements

Mapping of OIF-CEI-56G/112G-VSR measurements
Parameter Min Max Units

DC Common Mode Output Voltage

TP0a -0.3 2.8 V
TP1a -0.3 2.8 V
TP4 -350 2850 mV

Common Mode Noise

TP0a - 12 mV
TP1a - 17.5 mV
TP4 - 17.5 mV

Diff Peak to Peak Output Voltage Tx Enabled

TP0a 750 - mV
TP1a - 880 mV
TP4 - 900 mV

Transition Time

TP0a 7.5 - ps
TP1a 12.0 - ps
TP4 9.5 - ps

Eye Width (TP1a)

0.2 - UI

Eye Height (TP1a)

32 - mV

Eye Linearity (TP1a)

0.85 (56G) - -
0.9 (112G)

Eye Symmetry Mask Width (TP1a)

0.2 - UI

Near End Eye Width (TP4)

0.265 (56G) - UI
0.2 (112G)

Near End Eye Height (TP4)

70 (56G) - mV
37 (112G)

Near End Eye Linearity (TP4)

0.85 (56G) - -
0.9 (112G)

Near End Eye Symmetry Mask Width (TP4)

0.265 - UI

Far End Eye Width (TP4)

0.2 - UI

Far End Eye Height (TP4)

30 - mV

Far End Eye Symmetry Mask Width (TP4)

0.2 - UI

Signal to Noise and Distortion Ratio (TP0a)

31 - dB

Even Odd Jitter (TP0a)

- 0.019 UI

Uncorrelated Bounded High Probability Jitter (TP0a)

- 0.05 UIRMS

Uncorrelated Unbounded Gaussian Jitter (TP0a)

- 0.01 UI
TekExpress400G TXE_EN US_61W 61202 6
OIF-CEI-VSR at (TP1a/ TP4) fully automated electrical transmitter measurements

OIF-CEI-56G-MR and OIF-CEI-56G-LR fully automated electrical transmitter measurements

Mapping of OIF-CEI-56G-MR and OIF-CEI-56G-LR measurements
Parameter Min Max Units

DC Common Mode Output Voltage

0 1.9 V

AC Common Mode Output Voltage

- 30 mVrms

Diff Peak to Peak Output Voltage Tx Enabled

- 1200 mVppd

Single-Ended Output Voltage

-0.3 1.9 V

Level Separation Mismatch Ratio

0.95 - %

Steady State Voltage

0.4 0.6 V

Linear Fit Pulse Peak

0.80 * T_Vf- V

Signal to Noise and Distortion Ratio

31 - dB

Uncorrelated Bounded High Probability Jitter

- 0.118 UIpp

Uncorrelated Unbounded Gaussian Jitter

- 0.023 UIrms

Even Odd Jitter

- 0.019 UIpp
TekExpress400G TXE_EN US_61W 61202 6
OIF-CEI-MR and OIF-CEI-LR at (Testpoint-T) fully automated electrical transmitter measurements

IEEE (200GAUI-4 and 400GAUI-8) fully automated electrical transmitter measurements

Mapping of IEEE (200GAUI-4 and 400GAUI-8) measurements
Parameter Min Max Units

DC Common Mode Output Voltage

TP0a 0 1.9 V
TP1a -0.3 2.8 V
TP4 -350 2850 mV

AC Common Mode Output Voltage

TP0a - 30 mV
TP1a - 17.5 mV
TP4 - 17.5 mV

Diff Peak to Peak Output Voltage Tx Enabled

TP0a - 1200 mV
TP1a - 880 mV
TP4 - 900 mV

Diff Peak to Peak Output Voltage Tx Disabled

TP0a - 30 mV
TP1a - 35 mV

Transition Time

TP1a 10 - ps
TP4 9.5 - ps

Eye Height (TP1a)

32 - mV

Eye Symmetry Mask Width (TP1a)

0.22 - UI

Near End Eye Height (TP4)

70 - mV

Near End Eye Symmetry Mask Width (TP4)

0.265 - UI

Far End Eye Height (TP4)

30 - mV

Far End Eye Symmetry Mask Width (TP4)

0.2 - UI
Far End pre-cursor ISI ratio (TP4) -4.5 2.5 %

Signal to Noise And Distortion Ratio (TP0a)

31.5 - dB
Level separation mismatch ratio RLM 0.95
Steady state voltage vf 0.4 0.6 V
Linear fit pulse peak 0.76*vf - VV
Post-cursor equalization
Pre-cursor equalization

Even Odd Jitter (TP0a)

- 0.019 UI

Uncorrelated Bounded High Probability Jitter (TP0a)

- 0.05 UIRMS

Uncorrelated Unbounded Gaussian Jitter (TP0a)

- 0.01 UI
TekExpress400G TXE_EN US_61W 61202 6
IEEE 200GAUI-4 and IEEE 400GAUI-8 at (TP1a/ TP4) fully automated electrical transmitter measurements

IEEE KR4 fully automated electrical transmitter measurements

Mapping of IEEE KR4 measurements
Parameter Min Max Units
Signaling Rate 26.5625-100ppm 26.5625+100ppm GBd

Diff Peak to Peak Output Voltage Tx Disabled

- 30 mV

Diff Peak to Peak Output Voltage Tx Enabled

- 1200 mV

DC Common Mode Output Voltage

- 1.9 V

AC Common Mode RMS Output Voltage

- 30 mV
Transmitter steady-state voltage, vf 0.4 0.6 V

Linear Fit Pulse Peak

0.75*Vf - V

Level Separation Mismatch Ratio RLM

0.95 - -

Signal to Noise and Distortion Ratio

32.5 - dB
Transmitter output waveform
abs step size for c(–1), c(0), and c(1) 0.005 0.05 -
abs step size for c(–2) 0.005 0.025 -
value at minimum state for c(–1) and c(1) - -0.25 -
value at maximum state for c(–2) 0.1 - -
Output Jitter
JRMS - 0.023 UI
J3u - 0.106 UI

Even Odd Jitter

- 0.019 UI
TekExpress400G TXE_EN US_61W 61202 6
IEEE KR4 at (TP0a) fully automated electrical transmitter measurements

IEEE CR4 fully automated electrical transmitter measurements

Mapping of IEEE CR4 measurements
Parameter Min Max Units
Signaling Rate 26.5625-100ppm 26.5625+100ppm GBd

Diff Peak to Peak Output Voltage Tx Disabled

- 30 mV

Diff Peak to Peak Output Voltage Tx Enabled

- 1200 mV

DC Common Mode Output Voltage

- 1.9 V

AC Common Mode RMS Output Voltage

- 30 mV
Transmitter steady-state voltage, vf 0.354 0.6 V

Linear Fit Pulse Peak

0.49*Vf - V

Level Separation Mismatch Ratio RLM

0.95 - -

Signal to Noise And Distortion Ratio

32.2 - dB
Transmitter output waveform
abs step size for c(–1), c(0), and c(1) 0.005 0.05 -
abs step size for c(–2) 0.005 0.025 -
value at minimum state for c(–1) and c(1) - -0.25 -
value at maximum state for c(–2) 0.1 - -
Output Jitter

Even Odd Jitter

- 0.019 UI
JRMS - 0.023 UI
J3u - 0.115 UI
TekExpress400G TXE_EN US_61W 61202 6
IEEE CR4 at (TP2) fully automated electrical transmitter measurements

IEEE 802.3ck 100GAUI-1, 200GAUI-2, 400GAUI-4 measurements

Mapping of IEEE 100GAUI-1, 200GAUI-2, 400GAUI-4 measurements
ParameterMinMaxUnits
DC Common Mode Output Voltage
TP0v C2C0.21V
TP1a C2M Host-0.32.8V
TP4 C2M Module-0.352.85V
Single-ended Output Voltage
TP1a C2M Host-0.43.3V
Diff peak to peak Output Voltage Tx Enabled
TP0v C2CNA1200mV
TP1a C2M HostNA750mV
TP4 C2M ModuleNA600 (Short mode)mV
845 (Long mode)
Diff peak to peak Output Voltage Tx Disabled
TP0v C2CNA35mV
TP1a C2M HostNA35mV
Transition Time
TP1a C2M Host10 (Short mode)NAps
15 (Long mode)
TP4 C2M Module8.5NAps
Eye height
TP1a C2M Host10NAmV
Vertical Eye closure
TP1a C2M HostNA 12 dB
Near end Eye height
TP4 C2M Module15NAmV
Far end Eye height
TP4 C2M Module15NAmV
Near end Vertical Eye closure
TP4 C2M ModuleNA12dB
Far end Vertical Eye closure
TP4 C2M ModuleNA12dB
Signal to Noise and Distortion Ratio
TP0v C2C32.5NAdB
Coefficient range(IEEE)
TP0v C2C (C(-3) decrement)NA=<-0.05
TP0v C2C (C(-3) increment)0>=NA
TP0v C2C (C(-2) decrement)NA<=0.0
TP0v C2C (C(-2) increment)>=0.1NA
TP0v C2C (C(-1) decrement)NA<=-0.3
TP0v C2C (C(-1) increment)>=0.0 NA
TP0v C2C (C(0))NA=<0.5
TP0v C2C (C(1) decrement)NA=<-0.1
TP0v C2C (C(1) increment)>=0.0NA
Normalized Coefficients Step Size
TP0v C2C (Increment)0.0050.025
TP0v C2C (Decrement)-0.025-0.0005
Signaling Rate
TP0v C2C53.125±50ppm1GBd
TP1a C2M Host53.125±50ppm1GBd
TP4 C2M Module53.1251GBd
Level Separation Mismatch Ratio (RLM)
TP0v C2C0.95NA
Steady State Voltage
TP1a C2M HostNA375mV
Even Odd Jitter
TP0vNA0.025UI
Uncorrelated Jitter RMS and Uncorrelated J3 and J4 Jitter
TP0v C2C (J4u jitter limits)NA0.128UI
TP0v C2C (Uncorrelated Jitter J4u03) NA0.118UI
TP0v C2C (Jrms limits)NA0.023UI
Signal to AC Common Mode Noise Ratio (SCMR)
TP0v C2C15NAdB
Peak-Peak AC Common Mode Voltage
TP0v C2CNA32 (Low Frequency(VCMLF))mV
TP1a C2M HostNA32 (Low Frequency (VCMLF))mV
80 (Full Band (VCMFB))
TP4 C2M ModuleNA32 (Low Frequency (VCMLF))mV
80 (Full Band (VCMFB))
Signal to Residual Inter Symbol Interface Ratio (SNRISI)
TP0v C2C28NAdB
Difference Steady-State Voltage dvf
TP0v C2C0NAV
Difference Linear Fit Pulse Peak Ratio dRpeak
TP0v C2C0NA
TekExpress400G TXE_EN US_61W 61202 6
IEEE 802.3ck C2M Host (TP1a) and C2M Module (TP4) fully automated electrical transmitter measurements
TekExpress400G TXE_EN US_61W 61202 6
IEEE 802.3ck C2C (TP0v) fully automated electrical transmitter measurements

IEEE 802.3ck 100GCR-1, 200CR-2, 400CR-4 measurements

Mapping of IEEE 802.3ck 100GCR-1, 200CR-2, 400CR-4 measurements
ParameterMinMaxUnits
DC common mode output voltage
TP2NA1.9V
Diff peak to peak output voltage Tx enabled
TP2NA1200mV
Diff peak to peak output voltage Tx disabled
TP2NA30mV
Signal-to-noise and distortion ratio
TP231.5NAdB
Coefficient range(IEEE)
C(-3) decrementNA<= - 0.06
C(-2) decrement>= 0.12NA
C(-1) decrementNA<= - 0.34
C(0) decrementNA<= - 0.5
C(1) decrementNA<= - 0.2
Signaling rate
TP253.125 ± 50 ppmaGBd
Normalized Coefficients Step Size
TP2(Increment)0.0050.025
TP2(Decrement)-0.025-0.005
Level separation mismatch ratio (RLM)
TP20.95NA
Steady state voltage
TP20.3870.6V
Even odd jitter
TP2NA0.025UI
Uncorrelated jitter RMS and uncorrelated J3 and J4 Jitter
TP2(J3u jitter limits)NA0.125UI
TP2(J3u03 jitter limits)NA0.115UI
TP2(Jrms limits)NA0.023UI
Peak-Peak AC Common mode voltage
TP23080mV
Signal to Residual Inter symbol Interface Ratio (SNRISI)
TP226.7NAdB
Linear fit pulse peak ratio Rpeak
TP20.397NAV

400G-Tx test fixtures examples

DescriptionImage

Description: QSFPDD-TPA2.92-HCB-TX-P (HCB, 8-TX-Pairs, 5-inch 2.92mm Fem, 56G / 400G)

Part number: 640-0899-041 2

Model number: QSFPDD-TPA2.92-HCB-TX-P 1

Quantity: 1

TekExpress400G TXE_EN US_61W 61202 6

Description: QSFPDD-TPA2.92-MCB-R, (MCB, 2.92mm Fem, 400G)

Part number: 640-0900-000 1

Model number: QSFPDD-TPA2.92-MCB-R 1

Quantity: 1

TekExpress400G TXE_EN US_61W 61202 6

Description: QSFPDD-TPA2.4-HCB-RX-P (HCB, 8-RX-Pairs, 5-inch 2.4mm Fem, 112G / 800G)

Test fixture plugs into QSFP-DD port

Part number: 640-0899-131 1

Model number: QSFPDD-TPA2.4-HCB-RX-P 1

Quantity: 1

TekExpress400G TXE_EN US_61W 61202 6

Description: QSFPDD-TPA1.85-MCB-R, (MCB, 1.85mm Fem, 800G)

Test fixture receives QSFP-DD module

Part number: 640-0900-200 1

Model number: QSFPDD-TPA1.85-MCB-R 1

Quantity: 1

TekExpress400G TXE_EN US_61W 61202 6

Description: OSFP-TPA1.85-HCB-P (HCB, 8-Channels, 5-inch 1.85mm Fem, 112G / 800G)

Test fixture plugs into OSFP port

Part number: 640-0935-200 1

Model number: OSFP-TPA1.85-HCB-P 1

Quantity: 1

TekExpress400G TXE_EN US_61W 61202 6

Description: OSFP-TPA1.85-MCB-R (MCB, 8-Channels, 5-inch 1.85mm Fem, 112G / 800G)

Test fixture receives OSFP module

Part number: 640-0937-200 1

Model number: OSFP-TPA1.85-MCB-R 1

Quantity: 1

TekExpress400G TXE_EN US_61W 61202 6

Refer to Wilder Technologies https://www.wilder-tech.com/en for details regarding the various methods of signal break-out.

User-defined mode

In user-defined mode, users can configure Global parameters, test specific parameters, measurement repeat parameters, and notification parameters. This supports the characterization of measurements rather than developing custom lab setups, reducing the testing time and complexity.

De-embedding filters help in compensating for any loss that happens due to cables/accessories present between specification mentioned test point to analog channel of oscilloscope. SDLA can be used for creating de-embedding filter files.

TekExpress400G TXE_EN US_61W 61202 6

Reports and measurements results

TekExpress400G TXE_EN US_61W 61202 6
TekExpress400G TXE_EN US_61W 61202 6

Ordering information

Compliance testing to IEEE 802.3bs, 802.3cd, and 802.3ck Standards or OIF Standards for 400G at PAMJET, 26+ GBd /50Gb/s, and 53+ GBd /100Gb/s per lane requires a minimum of 2-stack SX oscilloscopes with Bandwidth ≥50 GHz (50 to approx 70Gb/s per lane) and 59 GHz (100Gb/s per lane and higher). When Tektronix oscilloscopes with lower bandwidth support the option, they might be used for troubleshooting.

Models

Software descriptionSupported oscilloscopesOrdering option
802.3bs/802.3cd permanent node locked license ordered with a DPS70000SX or DPO70000SX or DPO73304DX or MSO73304DX Series Real-Time OscilloscopeDPO73304SX, DPS73308SX, DPO75002SX, DPS75004SX, DPO75902SX, DPS75904SX, DPO77002SX, DPS77004SX, DPO73304DX, MSO73304DX400G-TXE
802.3bs/802.3cd Floating License for use on any Real-Time Oscilloscope listed above-DPOFL-400G-TXE
802.3bs/802.3cd Free 30-Day Trial License for use on any Real-Time Oscilloscope listed above-DPOFT-400G-TXE
802.3ck permanent node locked license ordered with a DPS70000SX or DPO70000SX Series Real-Time Oscilloscope DPO75902SX, DPS75904SX, DPO77002SX, DPS77004SX400GCK-TX
802.3ck Floating License for use on any Real-Time Oscilloscope listed above-DPOFL-400GCK-TX
802.3ck Free 30-Day Trial License for use on any Real-Time Oscilloscope listed above-DPOFT-400GCK-TX

Prerequisites

The following oscilloscope software is required:

Software detailsOrdering option
PAMJET 3 Transmitter Analysis Software for electrical signals PAMJET-E
PAMJET3 Measurement Analysis Software for 802.3ck (required for 802.3ck only)PAM400GCK
DPOJET Jitter and Eye Analysis Tools - AdvancedDJA
DPOJET Jitter and Eye Analysis Tools - Noise (Optional)DJAN
Serial Data Link Analysis toolkit (Optional)SDLA64

Tektronix Asset Management System (AMS)

Optional software requires the purchase of a license before they are functional. Some software may require additional software licenses. Licenses are managed within the Tektronix Asset Management System (Tek AMS). The Tek AMS website address is https://www.tek.com/en/support/products/product-license. Product license management requires a login account.

  • Node Locked Licenses provide your own copy of the application on your instrument or personal computer and are permanently assigned to a specific Host ID or product model/serial number.

  • Floating licenses can be moved between different Host IDs or product models.

Use the Tektronix Asset Management system to check in and check out floating licenses.