Multiplexer and Buffer 48-Pin LLP EP T/R

The DS40MB200 is a dual signal conditioning 2:1 multiplexer and 1:2 fan-out buffer designed for use in backplane redundancy applications. Signal conditioning features include input equalization and programmable output pre-emphasis that enable data communication in FR4 backplanes up to 4 Gbps. Each input stage has a fixed equalizer to reduce ISI distortion from board traces. All output drivers have 4 selectable steps of pre-emphasis to compensate for transmission losses from long FR4 backplanes and reduce deterministic jitter. The pre-emphasis levels can be independently controlled for the line-side and switch-side drivers. The internal loopback paths from switch-side input to switch-side output enable at-speed system testing. All receiver inputs are internally terminated with 100? differential terminating resistors. All drivers are internally terminated with 50? to VCC. 

1– 4 Gbps Low Jitter Operation

Fixed Input Equalization

Programmable Output Pre-Emphasis

Independent Switch and Line Side Pre-Emphasis Controls

Programmable Switch-Side Loopback Mode

On-Chip Terminations

+3.3V Supply

ESD Rating HBM 6 kV

Lead-Less WQFN-48 Package (7 mm x 7 mm)

0°C to +85°C Operating Temperature Range