Maxim's SFP28 transceiver allows module manufacturers to avoid a controller within the transmit optical subassembly (TOSA). This keeps heat away from the sensitive laser, simplifies production, and improves performance. Maxim's SFP28 transceiver also includes advanced digital configuration capabilities that enable the use of low-cost TO-CAN-based optics. The SFP28 module can simply be designed in the same way as an SFP+ module using TO-CAN optics, a transceiver IC, and a controller IC.
SFP28 optical modules for data center and fronthaul radio applications need to offer cost-competitive performance relative to SFP+ modules while maintaining low power consumption and a wide operating temperature range. Specifically optimized for these requirements, Maxim's 28.1 Gbps low-power transceiver IC has a CDR controller and a laser controller in the transmit path, and high-sensitivity current-limiting and CDR controllers in the receive path.

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