概览
Gennum® GN2405A 是一款四通道中继器/重定时器，旨在通过补偿传输损耗以及重新设置串扰和抖动预算来增强高速串行链路的范围和强度。
GN2405A 采用 Gennum 久经考验的免参考 CDR 架构，可简化系统设计并降低总体成本。每个通道都支持独立锁定 9.95 - 11.3Gbps 的数据速率。为了实现与传统数据速率的向后兼容性，还支持半速率 (5Gbps) 和四分之一速率 (2.5Gbps) 运行。使用重定时器旁路功能可以支持其他速率。
GN2405A 适合多种应用。它可以用作并行光学模块或有源铜缆组件中的 CDR。它灵活的去加重驱动器和抖动性能非常适合用作线卡或背板中继器。
功能
- 传输速率从 9.95 Gbps 提高到 11.3 Gbps 时自动锁定
- 在四分之一速率 (2.5 Gbps) 和半速率 (5 Gbps) 模式下执行自动速率检测
- 重定时器旁路速率高达 11.3Gbps
- 输出抖动低
- 输入抖动容限高，大于 0.7 UI
- 无需基准时钟
- 可编程输出，差动输出电压范围为 400 mV 至 800 mV
- 独立的通道工作
- 执行去加重，可补充高达 28 dB 的损失
- I2C 控制接口
- 自动从 E2PROM 加载配置数据
- 信号丢失检测，阈值可调
- 低功耗
- Single 3.3V supply
- 7 mm x 7 mm 48 引脚 QFN 封装
- GN2405A 和 GN2406 引脚完全兼容
应用
- 光学模块和有源铜缆组件，适用于：
- Infiniband® SDR/DDR/QDR
- 40 Gbps 和 100 Gbps 的以太网
- 线卡上的重定时器，适用于：
- QSFP 模块
- 并行光学模块
- SFP+ 模块
- 10 Gbps 系列背板重定时器
Inventory
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资源
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