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Description
Features of qdd 400g dr4
- Supports 425Gb/s PAM4
- Digital Diagnostics Monitoring Interface
- Built-in 400G PAM4 DSP
- Maximum link length of 500m over SMF with KP-FEC
- Hot-pluggable QSFP-DD form factor
- Uncooled 4 channels 1310nm EML
- 4 channels PIN photodetector array
- Commercial operating case temperature range: 0~ 70ºC
- RoHS-6 compliant
- Power dissipation<10W
- TDECQ<4dB
- Single MPO-12 receptacle
Standard
- IEEE 802.3bs 400GBASE-DR4
- QSFP-DD MSA
- SFF-8636
Application
- The Spine-Leaf architecture is interconnected to build a high-speed and non-blocking network;
- The connection between cabinets/ToR and the Leaf, connecting the top-of-rack switches and aggregation switches in different cabinets, with a distance usually within 500 meters;
- The AI/ML training cluster provides the low-latency and high-bandwidth links required for intensive GPU communication;
- Ultra-large-scale data centers can be economically and efficiently expanded to cope with massive internal traffic.
Specification of qdd 400g dr4
| Absolute Maximum Ratings | ||||
| Parameter | Symbol | Min | Max | Unit |
| Storage Ambient Temperature | TSTG | -40 | 85 | ℃ |
| Operating Humidity | HO | 5 | 85 | % |
| Power Supply Voltage | Vcc | -0.3 | 3.6 | V |
| Signal Input Voltage | Vcc-0.3 | Vcc +0.3 | V | |
| Recommended Operating Conditions | |||||
| Parameter | Symbol | Min | Typical | Max | Unit |
| Operating Case Temperature | Tc | 0 | 70 | ℃ | |
| Power Supply Voltage | Vcc | 3.13 | 3.3 | 3.47 | V |
| Data Rate, each Lane（PAM4） | 106.25 | Gbps | |||
| Fiber Length 09/125μm core SMF | – | – | 500 | m | |
| Optical transmitter Characteristics | ||||||
| Parameter | Symbol | Min | Typical | Max | Unit | Notes |
| Launched Power (avg.) Per Lane | Pavg | -2.9 | 4 | dBm | ||
| Wavelength Range | λ0 | 1304.5 | 1310 | 1317.5 | nm | |
| Spectral Width(-20dB) | ∆λ | 0.6 | nm | |||
| Extinction Ratio | ER | 3 | dB | |||
| Transmitter OFF Output Power | POff | -30 | dBm | |||
| Optical Modulation Amplitude(OMA outer) | OMA | -1.46 | 4 | dBm | ||
| Transmitter and dispersion eye closure(TDECQ) | TDECQ | 3.4 | dB | |||
| Optical receiver Characteristics | ||||||
| Parameter | Symbol | Min | Typical | Max | Unit | Notes |
| Receiver Wavelength Range | 1304.5 | 1317.5 | nm | |||
| Average Receiver Power Per Lane | -5.9 | 4 | dBm | |||
| Receiver Sensitivity Per Lane | Sen | -6 | dBm | |||
| Optical Power Input Overload | Pin-max | 5 | dBm | |||
| Receiver Reflectance | Rr | -26 | dB | |||
Ordering information
| Part. No | Specifications | ||||||||
| Pack | Rate (Gbps) | Tx (nm) | Po (dBm) | RX | Sen (dBm) | Temp (℃) | Reach (M) | DDM | |
| QSFP-DD-400G-DR4 | QSFP-DD | 400G | EML 1310 | -2.9~4 | PIN | <-6 | 0~70 | 500 | Y |
