400G QSFP-DD FR4

400G QSFP-DD FR4 optical transceiver module is suitable for 2km optical communication over single mode fiber. It converts 8 channels of 50Gb/s (PAM4) electrical input data to 4 channels of CWDM optical signals and multiplexes them into a single channel for 400Gb/s optical transmission. On the receiver side, the transceiver optically de-multiplexes a 400Gb/s optical input into 4 channels of CWDM optical signals and converts them to 8 channels of 50Gb/s (PAM4) electrical output data. Host FEC is required to support 2km fiber transmission.

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Product Highlight

Hot-pluggable QSFP-DD form factor with non-hermetic encapsulation
Designed with 56G uncooled EML and 16nm DSP
Operate at 106.25Gb/s (PAM4) per channel
Compliant with IEEE 802.3bs and QSFP-DD MSA
Supports receiver signal strength indicator (RSSI) and transmitter output power monitoring (TOPM)
Up to 2km transmission on single mode Fiber (SMF) with FEC
LC connector integrated with optical Mux and De-Mux

Application

400Gb Ethernet
Datacenter optical interconnect

Specification

P/N	Rate	Wavelength	TX Laser	RX Laser	Distance	Output Power	Sensitivity	Interface	Temperature
FX-QDD-400GE-SR8	425G	850	VCSEL	PIN	100m	-6.5~4 dBm	≤-7.9 dBm	MPO-16	0 ~ 70 °C
FX-QDD-400GE-DR4	425G	1310	EML	PIN	500m	-2.4~4 dBm	≤-6.4 dBm	MPO-12	0 ~ 70 °C
FX-QDD-400GE-FR4	425G	1310	EML	PIN	2km	-3.3~3.5 dBm	≤-7.3 dBm	LC DX	0 ~ 70 °C
FX-QDD-400GE-LR4	425G	1310	EML	PIN	10km	-2.8~4 dBm	≤-9.1 dBm	LC DX	0 ~ 70 °C

Note: Industrial grade -40 to 85 °C is available.

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