DS42MB100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

DS42MB100属于集成电路（IC）的信号缓冲器、中继器、分离器。由德州仪器制造生产的DS42MB100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。

1 Features

1• 2:1 Multiplexer and 1:2 Buffer

• 0.25-Gbps to 4.25-Gbps Fully Differential Data

Paths

• Fixed Input Equalization

• Programmable Output Pre-Emphasis

• Independent Pre-Emphasis Controls

• Programmable Loopback Modes

• On-Chip Terminations

• ESD Rating of 6-kV HBM

• 3.3-V Supply

• Lead-Less WQFN-36 Package

• –40°C to +85°C Operating Temperature Range

2 Applications

• Backplane Drivers or Cable Drivers

• Redundancy and Signal Conditioning Applications

• CPRI/OBSAI

3 Description

The DS42MB100 device is a signal conditioning 2:1

multiplexer and 1:2 fan-out buffer designed for use in backplane-redundancy or cable driving applications.

Signal conditioning features include continuous time

linear equalization (CTLE) and programmable output

pre-emphasis that enable data communication in FR4

backplane up to 4.25 Gbps. Each input stage has a fixed equalizer to reduce ISI distortion from board

traces.

All output drivers have four selectable levels of pre-

emphasis to compensate for transmission losses from

long FR4 backplane or cable attenuation reducing

deterministic jitter. The pre-emphasis levels can be independently controlled for the line-side and switch-

side drivers. The internal loopback paths from switchside

input to switch-side output enable at-speed

system testing. All receiver inputs are internally

terminated with 100-Ω differential terminating

resistors. All driver outputs are internally terminated

with 50-Ω terminating resistors to VCC.