瑞萨电子可为限幅与线性应用提供高性能光学时钟数据恢复 (CDR)/重定时器芯片。在输出抖动、抖动容差、接收器灵敏度与功耗方面极具优势；瑞萨电子光学 CDR 可提升高速串行链路的质量并延长传输距离，从而可补偿传输损耗，重新分配串扰与抖动容限。该产品组合以有源光缆 (AOC) 和可插拔模块形式为 100G 至 400G 数据中心应用提供单通道和四通道解决方案，覆盖范围从数百米 (SR) 至长达 10km (LR) 不等，其中包括 CWDM4、PSM4 和CLR4。

关于时钟与数据恢复 (CDR) 及重定时器

可将光学时钟与数据恢复电路 (CDR) 连接至光纤通道链路一端的光学收发器，以便从串行数据流中提取定时信息，从而使接收电路能够对传输数据进行解码。对于将恢复后串行数据以同步方式向本地基准时钟进行再传输的CDR，采用术语“重定时器”加以区分。瑞萨电子可同时提供 CDR 与重定时器产品，帮助清理信号、消除抖动，能够满足高速网络协议严格的性能要求。

接口&连接

产品选型表

    Processing table
    器件号
    Function
    Data Rate Max (Gbps)
    Channels (#)
    Application
    HXT14450
    56Gb/s PAM4 CDR/Retimer with VCSEL Drivers, Uni-Di    		 CDR / Retimer /Driver 56 4 200G Ethernet SR4, 400G Etherenet SR8, QSFP-DD/OSFP, QSFP56
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    视频和培训

    HXT14450 / HXR14450 Integrated 56 Gb/s Optical CDR / Retimers

    Watch an overview of the industry’s first CMOS-based PAM4 CDR solutions, HXT14450 50G/lane PAM4 integrated CDR with VCSEL driver and HXR14450 TIA designed for 200 Gb/s and 400 Gb/s transceivers and AOCs (active optical cables) in datacenters. The series features significantly lower power and smaller size compared with traditional DSP solutions, as well as higher integration – including an integrated MCU – to further simplify system design.

    Video List