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TekExpress 400G-TXE
Conformance and Characterization Solution for Real Time Oscilloscopes
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The new Tektronix real-time instrument based OIF-CEI-56G-VSR/MR/LR, OIF-CEI-112G-VSR, and IEEE: 802.3bs (200GAUI-4 and 400GAUI-8), 802.3cd (CR4, KR4) Transmitter Characterization automation system provides turnkey testing and debug of the industries most common 400G PAM4 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. These tools are brought together in a single 400G-TXE package.
Key Features
- 400G-TXE 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) electrical transmitter specifications.
- Extends PAM4 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
OIF-CEI-56G-VSR/MR/LR, OIF-CEI-112G-VSR, and IEEE-802.3bs/cd fully automated electrical transmitter real-time oscilloscope measurements
This application package is designed in conjunction with the performance levels offered by a 50 GHz, 70KSX instrument pair. The 400G-TXE loads the required Bessel Thomson roll-off filter with appropriate bandwidth. This is common across all 400G electrical specifications in the industry today. The unique lower noise level of the ATI architecture serves the key signal-to-noise and distortion ratio measurements, which are attained with margin on the 70KSX systems. The 400G-TXE solution is also available on a non-70KSX systems, such as 33 GHz, higher 70KDX, 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, Draft 3.5, Annex 120D.3.1, Table 120D-1 |
| IEEE 802.3bs, Draft 3.5, Annex 120D.3.1, Table 120E-1 | |
| IEEE 802.3bs, Draft 3.5, Annex 120E.3.2, Table 120E-3 | |
| 50GBASE-CR/100GBASE-CR2/200GBASE-CR4 | IEEE802.3cd Draft 3.5 Section 136.9.3, Table 136-11 |
| 50GBASE-KR/100GBASE-KR2/200GBASE-KR4 | IEEE802.3cd Draft 3.5 Section 137.9.2 |
| Modulation | Data Rate (GBd) | Lanes | Throughput (Gbps) |
|---|---|---|---|
| PAM4 | 18 to 29 | 1 to N | Number of lanes*2*Data Rate |
OIF-CEI-56G/112G-VSR fully automated electrical transmitter 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 |
OIF-CEI-56G-MR and OIF-CEI-56G-LR fully automated electrical transmitter 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 |
IEEE (200GAUI-4 and 400GAUI-8) fully automated electrical transmitter 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 |
IEEE KR4 fully automated electrical transmitter 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 |
IEEE CR4 fully automated electrical transmitter 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 |
Electrical system interconnect setup
Direct electrical connections via a precision fixture or 2.92 mm interconnects are the preferred method to access the backplane and cabled signals. The QSFP28 module interconnect point found on the 400G-TXE design is the most typical signal access point.
Refer to the Wilder Technologieswww.wilder-tech.comfor 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 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.
Reports and measurements results
Ordering information
Models
- 400G-TXE permanent node locked license ordered with a DPS70000SX or DPO70000SX Series Real Time Oscilloscope
DPO73304SX, DPS73308SX, DPO75002SX, DPS75004SX, DPO77002SX, DPS77004SX, DPO75902SX, DPS75904SX
Option 400G-TXE
- 400G-TXE permanent node locked license ordered with a DPO73304DX or MSO73304DX Real Time Oscilloscope
DPO73304DX, MSO73304DX
Option 400G-TXE
- 400G-TXE Floating License for use on any Real Time Oscilloscope listed above
- DPOFL-400G-TXE
- 400G-TXE Free 30 Day Trial License for use on any Real Time Oscilloscope listed above
- DPOFT-400G-TXE
Prerequisites
The following oscilloscope optional software is required:
- PAM4 license
- Electrical Transmitter Analysis (version 10.5 or greater)
- DJA license
Jitter and Eye Analysis Tools - Advanced (DPOJET)
- DJAN license
DPOJET Noise, Jitter and Eye Analysis Tools
- SDLA64 license
Serial Data Link Analysis
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 web site address is www.tektronix.com/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 Hosti 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.
Tektronix is registered to ISO 9001 and ISO 14001 by SRI Quality System Registrar. Product(s) complies with IEEE Standard 488.1-1987, RS-232-C, and with Tektronix Standard Codes and Formats.
61W-61202-3
