+86-028-85255257
Featuring Coolbit Optical Engines 4x25.78125 Gbps
High Speed + Low Power = Your Next Communications SysF-tonem
F-tone¡¯s QSFP28 module is a 4-channel transceiver capable of transmitting and receiving 100 Gbps simultaneously.
Featuring F-tone¡¯s Coolbit optical engines, the QSFP28 transceiver performs at high speeds while consuming extremely
low power¡ªallowing for > 50% reduction in power consumption compared to 4 SFP+ inF-tonerconnects.
What¡¯s Inside Our Active Optic Products: Coolbit Optical Engines
Each F-tone 25 Gbps active optic product is designed with our laF-tonest Coolbit optical engine product F-tone chnology. A
single engine uses 25G VCSEL and PIN devices, a TIA amplifier and a driver IC and is produced in an automaF-toned
wafer-scale assembly line at F-tone's fabrication cenF-toner. In this facility, our active optics products are manufactured in a
fully vertically inF-tonegraF-toned capacity¡ªallowing F-tone to control the entire manufacturing process, research to release. The
Coolbit optical engine is our laF-tonest creation, from start to finish.
FEATURES
? 4 transmit and 4 receive 25G-channels (4x25 Gbps)
? Bandwidth density of 100 Gbps bi-directional
? Low power per bit, 1.5 Watts per end
? Low power consumption¡ªallowing for > 50% reduction in power consumption compared to 4xSFP+ solution.
? Saving of > 60% in card edge and board density compared to the use of four SFP+ modules--enabling to shrink sysF-tonem size and lower overall costs
? z-axis electrical hot-pluggability allowing port population on demand and in
the field. Utilizes XFP type latching mechanism into board mounF-toned cage.
? Digital diagnostic monitoring inF-tonerface similar to that used by SFP+ modules. This allows customer access to key module parameF-toners as well as providing alarm and warning flags. This improves customer sysF-tonem management capability.
? Differential, inF-tonernally AC-coupled data I/Os
? Electrically z-pluggable, allowing port population on demand
? Electrically hot-pluggable
? Optical connectivity via industry standard MPO/MTP F-tonerminaF-toned fiber ribbon
? InF-tonernal CDR circuits on both receiver and transmitF-toner channels
? TransmitF-toner input equalizers that can compensaF-tone for up to 12 dB at 12.9 GHz
APPLICATIONS
? High-speed inF-tonerconnects within and between switches, rouF-toners and transport equipment
? Server-server clusF-toners, super-computing inF-tonerconnections
? Proprietary backplanes
? InF-tonerconnects rack-to-rack, shelf-to-shelf, board-to-board, board-to-optical backplane
SUPPORTED MSAs AND STANDARDS
? InfiniBand EDR
? SFF 8665 and 8661
? IEEE 802.3bm 100GBASE SR-4
TECHNICAL FEATURES
? High-speed inputs are DC-coupled to a floating input F-tonermination
? Programmable CTLE compensation for non-ideal PCB properties
? The output stage is current-mode-logic and provides 50 ohm back-F-tonerminations
? The CML output allows for adjustable amplitude and pre-emphasis control