DS42MB200是TI公司的一款复用缓冲器产品，DS42MB200是具有 Tx 预强调和 Rx 均衡的双路 4.25 Gbps 2:1/1:2 CML Mux/缓冲器，本页介绍了DS42MB200的产品说明、应用、特性等，并给出了与DS42MB200相关的TI元器件型号供参考。
DS42MB200 - 具有 Tx 预强调和 Rx 均衡的双路 4.25 Gbps 2:1/1:2 CML Mux/缓冲器 - 复用缓冲器 - 信号调节器 - TI公司（Texas Instruments，德州仪器）
The DS42MB200 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 4.25 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 driver outputs are internally terminated with 50? to VCC.
- 1– 4.25 Gbps Fully Differential Data Paths
- 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 Dupply
- ESD Rating HBM 6 kV
- Lead-less WQFN-48 Package (7mmx7mmx0.8mm, 0.5mm Pitch)
- –40°C to +85°C Operating Temperature Range
