Features
Hot-pluggable QSFP-DD form factor
Parallel 4 Optical Lanes
MPO-12 connector
Compliant to QSFP-DD MSA
IEEE 802.3bs 400GBASE-DR4 Specification compliant
Data Rate 106.25Gbps PAM4 per lane
8x53.125Gb/s electrical interface (400GAUI-8)
Up to 500m transmission on single mode fiber (SMF) with FEC
Digital diagnostics functions are available via the I2C interface
Single 3.3V Power Supply and Power Dissipation < 10W
Operating Case Temperature: 0ºC~+70ºC
RoHS compliant
Applications
400G Ethernet
Infiniband Interconnect
Data center
Enterprise Networking
Production Description
This product is a 400Gb/s Quad Small Form Factor Pluggable-double density (QSFP-DD) optical module designed for 500m optical communication applications. The module converts 8 channels of 50Gb/s (PAM4) electrical input data to 4 channels of parallel optical signals, each capable of 100Gb/s operation for an aggregate data rate of 400Gb/s. Reversely, on the receiver side, the module converts 4 channels of parallel optical signals of 100Gb/s each channel for an aggregate data rate of 400Gb/s into 8 channels of 50Gb/s ( PAM4) electrical output data.
An optical fiber cable with an MTP/MPO-12 connector can be plugged into the QSFP-DD DR4 module receptacle. Proper alignment is ensured by the guide pins inside the receptacle. The cable usually cannot be twisted for proper channel to channel alignment. Electrical connection is achieved through an QSFP-DD MSA-compliant edge type connector.
The product is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP-DD Multi- Source Agreement (MSA) Type 2. It has been designed to meet the harshest external operating conditions including temperature, humidity and EMI interference.
Absolute maximum rating
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 |
% |
Recommended operating environment
Recommended Operating Environment specifies parameters for which the electrical and optical characteristics hold unless otherwise noted.
| Parameter |
Symbol |
Min. |
Typical |
Max |
Unit |
| Power Supply Voltage |
VCC |
3.15 |
3.30 |
3.45 |
V |
| Operating Case Temperature |
TCa |
0 |
|
70 |
°C |
Electrical characteristics
The following electrical characteristics are defined over the Recommended Operating Environment unless otherwise specified.
| Parameter |
Symbol |
Min. |
Typical |
Max |
Unit |
Notes |
| Data Rate per lane |
DR |
- |
53.125 |
- |
Gbps |
|
| Transmitter |
| Input differential impedance |
Rin |
90 |
100 |
110 |
Ω |
|
| Differential Input Voltage swing |
Vin |
900 |
- |
1100 |
mVp-p |
|
| Receiver |
| Differential Output Swing |
Vout |
- |
- |
900 |
mVp-p |
|
| Output differential impedance |
Rout |
90 |
100 |
110 |
Ω |
|
Optical characteristics
The following optical characteristics are defined over the Recommended Operating Environment unless otherwise specified.
| Parameter |
Symbol |
Min. |
Typical |
Max |
Unit |
Notes |
| Transmitter |
| Center Wavelength |
λ |
1304.5 |
1310 |
1317.5 |
nm |
|
| Data rate, each lane |
|
53.125±100ppm |
GBd |
|
| Side-mode Suppression Ratio |
SMSR |
30 |
|
|
dB |
|
| Average Optical Power, per lane |
Po |
-2.9 |
- |
4 |
dBm |
1 |
| Extinction Ratio |
ER |
3.5 |
- |
- |
dBm |
|
| Optical Modulation Amplitude |
OMA |
-4.5 |
- |
3 |
dB |
|
| Transmitter and Dispersion Eye Closure |
TDECQ |
|
|
3.4 |
dB |
|
| Optical Return Loss Tolerance |
ORL |
- |
- |
21.4 |
dB |
|
| Receiver |
| Center Wavelength |
λ |
1304.5 |
1310 |
1317.5 |
nm |
|
| Data rate, each lane |
|
53.125±100ppm |
GBd |
|
| Average Receive power ,each lane |
|
-5.9 |
|
4.0 |
dBm |
|
| Receive power (OMAouter), each lane |
|
|
|
4.2 |
dBm |
|
| Receiver sensitivity (OMAouter),each lane |
|
|
|
-4.4 |
dBm |
|
| LOS Asserted |
Lsa |
-15 |
- |
- |
dBm |
|
| LOS De-Asserted |
Lda |
- |
- |
-8.9 |
dBm |
|
| LOS Hysteresis |
Lh |
0.5 |
- |
- |
dB |
|
Note:
1. Average launch power, each lane (min) is informative and not the principal indicator of signal strength.
2. A transmitter with launch power below this value cannot be compliant; however, a value above this does not ensure compliance.
Please visit T&S Communications Co., Ltd. website for complete information.
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