Guangzhou UC Instruments., Co. Ltd.
Guangzhou UC Instruments., Co. Ltd.
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4-Channel QSFP-DD 400Gdps Product Test And Evaluation Board
QSFP-DD (also known as QSFP56-DD) stands for four-channel small pluggable dual density and is an optical module interface designed for 400G and higher rate applications. It is fully compliant with the IEEE802.3bs and QSFP-DD MSA (Multi-Source Protocol) standards and achieves higher bandwidth and data transfer rates by providing double the number of electrical channels (compared to the standard QSFP28).
Features of 4-channel 400G QSFP-DD
High speed: Using PAM4 modulation technology, the data rate of each channel can reach 50Gb/s, and the total throughput speed can reach 400G.
High density: Compared to the standard QSFP28 module, the QSFP-DD module supports twice the number of high-speed electrical interfaces, resulting in increased bandwidth density.
Backward compatibility: Support for existing QSFP modules such as QSFP+, QSFP28, etc., provides flexibility for end users and system designers.
Low power consumption: The power consumption is usually between 7-12W, and the lower power consumption helps to reduce the operating cost of the transceiver.
High thermal performance: Improved thermal performance with 2x1 stacked integrated cage/connectors and thermal support for SMT connectors and 1xN cage designs.
specification
| NO. | Index | Max | Min | Unit |
| 1 | Data rate | 28 | 25 | GBd |
| 2 | Adjustable output supply voltage | 4 | 2.8 | V |
| 3 | Accuracy of tension voltage regulation | 5 | mV | |
| 4 | Monitoring voltage accuracy | 5 | mV | |
| 5 | Monitoring current | 4000 | 0 | mA |
| 6 | Monitoring current accuracy | 0.1 | mA | |
| 7 | I2C rate | 400 | 100 | KHz |
| 8 | Power supply voltage (external DC power input voltage) | 5.5 | 4 | V |
| 9 | Operating temperature | 85 | -40 | °C |
| 10 | Communication mode | USB HID, no drive. | ||
| 11 | TX,RX Electrical interface type | 40GHz 2x8 Multi-coaxial Connectors | ||
| 12 | Input/output level mode | CML | ||
| 13 | Maximum supported power consumption | 25W | ||
