Semtech GX3202

The GX3202 is a low-power, high-speed 202 x 202 crosspoint switch, with robust signal conditioning circuits for driving and receiving high-speed signals through backplanes.
The device consumes as low as 24W of power (typical) with all channels operational, and features sophisticated, dynamically scalable power management. Unused portions of the core are automatically turned off without affecting the operation of the remaining channels.
The signal conditioning features of the GX3202 include per-input programmable equalization and per-output programmable de-emphasis. The input equalizer removes ISI jitter—typically caused by PCB trace losses—by opening the input data eye in applications where long PCB traces and connectors are used. There are four settings available for the input equalizer, allowing flexibility in adjusting the equalization level on a per-input basis.
Output de-emphasis capability provides a boost of the high-frequency content of the output signal, such that the data eye remains open after passing through a long interconnect of PCB traces and connectors. There are four de-emphasis settings that can be enabled on a per-output basis.
System test features, such as a programmable PRBS pattern generator and checker, can be applied to any input or output of the device as appropriate.
The pattern generators can be individually applied to any output of the device without impacting the normal operation of any other channel. Broadcast and multicast features are also available.
The chip features eight independent strobe lines, UPDATE_EN[7:0], which are used to determine the timing of the output updates. Any output can be linked to any strobe.
Overview
Features
- 202 x 202 交叉点开关结构,支持广播和多播模式
- 支持从直流到 3.5 Gb/s 的数据传输速率
- 低功耗:24W(启用所有通道)
- 精细的动态芯片级电源管理控制
- 多个用户可编程的断电式省电模式
- 独立可编程输入迹线均衡,以减少确定性抖动 (ISI)
- 独立可编程输出去加重,可部署较长的电路板迹线
- 高速视频优化控制,以用于多格式应用
- 内置系统测试,配有芯片级 PRBS Tx 生成器和 Rx 分析器
- 2.5 V 模拟核心电压,1.8 V 数字核心电压
- 输入和输出电压支持 1.2 V 或 2.5 V CML
- JTAG 控制的边界扫描
- 可选并联/串联 (SPI) 主机接口
- 50 mm x 50 mm BGA 封装(2377 个焊球)
- 工作温度范围:0°C to +85°C
- 符合 RoHS 标准
Applications
大型 m x n 级联路由器/交换结构,用于:
- 专业广播应用
- 企业和运营商应用
- 高速自动化测试设备
- 10 GbE 和无限带宽网络
Packaging
- GX3202-CBE3:无铅,符合 RoHS 标准,10 颗/盘
Order Codes
大型 m x n 级联路由器/交换结构,用于:
- 专业广播应用
- 企业和运营商应用
- 高速自动化测试设备
- 10 GbE 和无限带宽网络