RC38x08 FemtoClock®3 Wireless Jitter Attenuators

Renesas Electronics RC38x08 FemtoClock®3 Wireless Ultra-low Phase Noise Jitter Attenuators and Clock Generators include the RC38208 and RC38108 high-performance, small form factor devices. These components are ultra-low phase noise jitter attenuators, multi-frequency clock synthesizers, and digitally controlled oscillators (DCOs). The flexible, low-power RC38x08 devices generate clocks with ultra-low inband phase noise and spurious for 4G/5G RF transceivers and with jitter below 25fs RMS for 112Gbps and 224Gbps SerDes. RC38x08 can manage up to three synchronization domains, supporting CPRI/eCPRI and synchronization methods like IEEE 1588, Synchronous Ethernet (SyncE), GPI, or GNSS. RC38x08 simplifies system clock generation with up to four frequency domains, while integrated LDOs provide superior PSRR, reducing PCB complexity. This simplification makes it an excellent choice for applications such as timing for optical front-end DAC/ADC and DSP, reference clocks for high-speed SerDes, 5G distribution units, and high-performance DCO for PTP-based clocks.