Customization: | Available |
---|---|
Wiring Devices: | Fiber Optic Cabling |
Certification: | RoHS |
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Features
Electrical interface: retimed CAUI-4 per 100G Ethernet IEEE 802.3bm Annex 83E
Hot pluggable
Link budget assumes the use of KR4 FEC by the host
Uncooled CWDM DFB lasers, directly modulated
User controllable Transmit Input Equalization and Receiver Output Amplitude
Fiber connector: SMF LC duplex connector
Power dissipation < 3.5W
Distance up to 2km
2-wire interface with integrated Digital Diagnostic monitoring
Operating case temperature: 0ºC~+70ºC
RoHS6 compliant (lead free)
Applications
Data Center Interconnect
100G CWDM4 applications with FEC
Description
The QSFP28 100G-CWDM4-2km module is a highly integrated 4x25G transceiver focused on reach, bandwidth, density and cost for high port-count 100G systems, and client-side 100G interfaces. It is compliant with the 100G 4WDM-10 MSA, which is based on the CWDM4 MSA version 1.1. It is interoperable with CWDM4 transceivers over a 2 km reach.
Absolute maximum ratings
These values represent the damage threshold of the module. Stress in excess of any of the individual Absolute Maximum Ratings can cause immediate catastrophic damage to the module even if all other parameters are within Recommended Operating Conditions.
Parameters | Symbol | Min. | Max. | Unit |
Power Supply Voltage | VCC | -0.5 | +3.6 | V |
Storage Temperature | Tc | -40 | +85 | °C |
Relative Humidity | RH | 0 | 85 | % |
Parameter | Symbol | Min | Typical | Max | Unit |
Power Supply Voltage | VCC | 3.15 | 3.30 | 3.45 | V |
Operating Case Temperature | Tca | 0 | 70 | °C |
Parameter | Symbol | Min. | Typical | Max | Unit | Ref. |
Transmitter | ||||||
Input differential impedance | Rin | - | 100 | - | Ω | 1 |
Single-ended Input Voltage Tolerance |
-0.3 | - | 4.0 | V | ||
AC Common Mode Input Voltage Tolerance |
15 | - | mV | |||
Differential Input Voltage | 50 | - | - | mV | ||
Differential Input Voltage swing, per lane | Vin | 190 | 1000 | mV | ||
Receiver | ||||||
Output differential impedance | Rout | 100 | Ω | 1 | ||
Differential Output Swing, per lane | Vout | 300 | 900 | mV | 2 | |
AC Common Mode Output Voltage Tolerance |
7.5 | mV | ||||
Single-ended Output Voltage | -0.3 | 4.0 | V |
Parameter | Symbol | Min | Typical | Max | Unit | Ref. | |
Center Wavelength | Ch0 | λ0 | 1264.5 | 1271 | 1277.5 | nm | |
Ch1 | λ1 | 1284.5 | 1291 | 1297.5 | nm | ||
Ch2 | λ2 | 1304.5 | 1311 | 1317.5 | nm | ||
Ch3 | λ3 | 1324.5 | 1331 | 1337.5 |
nm | ||
Bit Rate per Channel | DR | 25.78125±100ppm | Gbps | 1 | |||
Side Mode Suppression Ratio | SMSR | 30 | - | - | dB | ||
Average launch power each lane | -6.5 | 2.5 | dBm | 7 | |||
Optical Modulation Amplitude (each lane) | OMA | -4.0 | 2.5 | dBm | |||
Transmit OMA per Lane @TDP max | -2.0 | dBm | 2 | ||||
Launch power in OMA minus TDP, each lane | OMA-TDP | -5.0 | dBm | ||||
Transmission & dispersion penalty, each lane |
TDP | 3.0 | dB | 3 | |||
Transmitter Reflectance | -12 | dB | |||||
Extinction Ratio | ER | 3.5 | dB | ||||
Transmitter eye mask definition {X1, X2, X3, Y1, Y2, Y3} | {0.31, 0.4, 0.45, 0.34, 0.38, 0.4} CWDM4 MSA Technical Specifications Rev 1.1 |
||||||
Total average launch power | Po | 8.5 | dBm | ||||
Average launch power of OFF transmitter, each lane | Poff | -30 | dBm | ||||
Optical return loss tolerance | ORL | 20 | dB |
Parameter | Symbol | Min | Typical | Max | Unit | Ref. | |
Center Wavelength | Ch0 | λ0 | 1264.5 | 1271 | 1277.5 | nm | |
Ch1 | λ1 | 1284.5 | 1291 | 1297.5 | nm | ||
Ch2 | λ2 | 1304.5 | 1311 | 1317.5 | nm | ||
Ch3 | λ3 | 1324.5 | 1331 | 1337.5 |
nm | ||
Bit Rate per Channel | DR | 25.78125±100ppm | Gbps | 4 | |||
Unstressed Sensitivity (OMA) | OMAin | - | - | -10 | dBm | 5 | |
Receiver Overload | PMAX | 2.5 | |||||
Stressed Sensitivity (OMA) | OMAin,str | - | -7.3 | dBm | 6 | ||
Optical Return Loss | ORL | -26 | dB | ||||
Vertical eye closure penalty, each lane | VECP | 1.9 | dB | ||||
Stressed eye J2 Jitter, each lane | J2 | 0.3 | UI | ||||
Stressed eye J9 Jitter, each lane | J9 | 0.5 | UI | ||||
Stressed eye J4 Jitter, each lane | J4 | 0.48 | UI | ||||
SRS eye mask definition {X1, X2, X3, Y1, Y2, Y3} |
{0.39, 0.5, 0.5, 0.39, 0.39, 0.4} CWDM4 MSA Technical Specifications Rev 1.1 |
||||||
Damage threshold, each lane | 3.5 | dB |
Parameter | Symbol | Min | Typical | Max | Unit | Ref. |
Bit Rate (all wavelengths combined) | BR | 103.1 | Gb/s | |||
Bit Error Ratio @25.78Gb/s | BER | 5x10-5 | 1 | |||
Maximum Supported Distances | ||||||
Fiber Type | ||||||
SMF per G.652 | LossBdgt | 5 | dB | 2 |
Notes:
1. Tested with a 231 - 1 PRBS.
2. This 5 dB loss budget includes 2.5dB optical coding gain from FEC on the host [RS-FEC (528,514) per Clause 91]. The maximum informative link length is 2km. The option to bypass RS-FEC is not supported. Loss budget may include up to 1dB MPI loss penalty with worse case Transmitter and worst case connector MPI.