国产矩阵方案首选LT8644EX-4进4出，8进8出，16进16出数字交叉点开关，矩阵控制软件介绍

1. 一般的描述

LT8644EX是16×16数字交叉点开关，具有16个差分CML兼容输入和16个差分CML输出。LT8644EX针对非归零(NRZ)信令进行了优化，每个端口的数据速率高达6 Gbps。每个端口提供可编程水平的输入均衡和可编程输出摆幅。LT8644EX支持通过串行控制接口进行独立通道切换。LT8644EX具有低延迟和非常低的信道到信道倾斜。I2C接口用于控制设备并提供对高级功能的访问。

2. 特性

•每端口NRZ数据速率为250mb至6Gbps

•可编程接收均衡，补偿40英寸的FR4在6Gbps

•直流或交流耦合差分CML输入

•直流或交流耦合差分CML输出

•可编程的CML输出水平和预强调水平

•支持输出极性交换

•50Ω芯片上的I/O终止

•支持8b/10b，打乱或未编码NRZ数据

•集成100/400kHz I2C从站

•低功耗

•电源:3.3V I/O和1.2V核心

•ESD 4kV HBM

•温度范围:-40°C ~ +85°C

•128针QFN 14*14封装

3.应用程序

•光纤网络交换

•数字视频(HDMI, DVI，显示端口)

•数据存储网络

1. General Description

The LT8644EX is a 16×16 digital crosspoint switch, with 16 differential CML compatible inputs and 16 differential CML outputs. The LT8644EX is optimized for non return-to-zero (NRZ) signaling with data rates of up to 6 Gbps per port. Each port offers programmable level of input equalization and programmable output swing. The LT8644EX supports independent channel switching through the serial control interface. The LT8644EX has low latency and very low channel-to-channel skew. An I2C interface is used to control the device and provide access to advanced features.

2. Features

• 250Mbs to 6Gbps per port NRZ data rate
• Programmable receive equalization, compensates 40 inches of FR4 at 6Gbps
• DC- or AC-coupled differential CML inputs
• DC- or AC-coupled differential CML outputs
• Programmable CML output levels and pre-emphasis leves
• Support output polarity swap
• 50Ω on-chip I/O temination
• Supports 8b/10b, scrambled or uncoded NRZ data
• Integrated 100/400kHz I2C slave
• Low power consumption
• Power supply: 3.3V for I/O and 1.2V for core
• ESD 4kV HBM
• Temperature Range: -40°C ~ +85°C
• 128-pin QFN 14*14 package

3. Applications

• Fiber optic network switching
• Digital video (HDMI, DVI,Display Port)
• Data storage networks

可提供免费的样机测试