RC38312 Datasheet | Renesas

RC38312/RC38112 Femto Clock®3 Radio Synchronizer and Multi-Frequency Clock Synthesizer Description The RC38312/RC38112 is an ultra-low phase noise radio synchronizer, multi-frequency clock synthesizer, and digitally controlled oscillator (DCO). This flexible, low-power device outputs clocks with ultra-low inband phase noise and spurious for 4G and 5G RF transceivers and with jitter below 25fs-rms for 112Gbps and 224Gbps Ser Des. Applications - 5G radio units (RU) - 5G distribution units (DU), switches, and routers - Reference clock for 112Gbps and 224Gbps Ser Des - High-performance DCO for Precision Time Protocol (PTP) based clocks Features - Ultra-low phase noise synthesizer with jitter below 25fs RMS, 12k Hz to 20MHz with 4MHz HPF - Three independent low-phase noise sync domains - Four independent low-phase noise frequency domains - Support for JESD204B/C - Time sync block with time to digital converter (TDC), time of day (TOD) counter, and PTP clocks - 12 clock outputs with independent integer dividers - 8: LVDS, HCSL (AC-LVPECL) or CML - 4: LVDS, HCSL (AC-LVPECL) or LVCMOS - Output frequency range: - CML: DC to 2.5GHz - LVDS or HCSL: DC to 1GHz - LVCMOS: DC to 250MHz - Four differential or single-ended clock inputs - Operates from a 1.8V supply. - Clock inputs tolerate 1.8V input when the device is powered off, sinking less than 1m A - CLKIN input frequency range: DC to 1GHz - Time Sync TDC supports 1PPS and PP2S inputs - DPLLs ply with ITU-T G.8262 and...