28 Gbps redriver for high-speed serial backplanes
The Texas Instruments DS280MB810ZBLT is an 8-channel buffer and multiplexer redriver rated for 28 Gbps data rate on each lane. It accepts CML inputs and drives CML outputs, with integrated input equalization to compensate for channel loss across PCB traces or cable runs. The 2.5 V supply and industrial temperature range (-40°C to 85°C) suit it for base station line cards, data-center switches, and outdoor telecom equipment where signal integrity over long backplane traces is the constraint.
28 Gbps — what it buys you on the link budget
The DS280MB810ZBLT handles 28 Gbps NRZ per lane. Input equalization recovers a partially closed eye from channel loss before re-driving the signal.
Package and mounting constraints
The 135-NFBGA (8x13 mm) package is a fine-pitch BGA. Surface-mount assembly requires controlled reflow profile and X-ray inspection for voiding under the balls. The 2.5 V supply rail must be clean.
Lifecycle and compliance
The DS280MB810ZBLT carries an Active product status per the manufacturer. ROHS3 compliant — no exemptions for lead in solder balls.