DS42MB200集成电路（IC）的信号缓冲器、中继器、分离器规格书PDF中文资料

DS42MB200属于集成电路（IC）的信号缓冲器、中继器、分离器。由美国德州仪器公司制造生产的DS42MB200信号缓冲器、中继器、分离器信号缓冲器、中继器和分离器系列中的产品适用于远距离电气互连或电缆系统的数字信息传输。所有实际互连系统都具有非理想特性，该系列产品主要用于解决数字信息传输过程中因此造成的模拟问题。此外，还有其他功能，例如不同物理接口样式之间的转换和多路复用。

1FEATURES

2• 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

APPLICATIONS

• Backplane Driver or Cable Driver

• Redundancy and Signal Conditioning

Applications

• XAUI

DESCRIPTION

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 100Ω

differential terminating resistors. All driver outputs are

internally terminated with 50Ω to VCC.