Description

Clock Synthesizer/Jitter Cleaner FEMTOCLOCK3 JITTER ATTENUATOR. 9X9MM QFN

Introducing the Renesas Electronics RC323x FemtoClock 3 Clock Synthesizers, designed to deliver exceptional phase noise and jitter performance, tailored for SerDes rates of up to 224Gbps. These synthesizers offer a high degree of integration, supporting up to four frequency domains while minimizing power consumption.

The FemtoClock 3 boasts versatile functionality, facilitating various operating modes including synchronization, jitter attenuation, and clock generation. With an impressive 25fs-rms jitter, these synthesizers surpass reference clock requirements for both 112Gbps and next-generation 224Gbps SerDes applications.

Furthermore, the RC323x supports a broad range of crystal frequencies, from 48MHz to 68MHz, ensuring compliance with stringent jitter specifications. Renesas Electronics RC323x FemtoClock 3 Clock Synthesizers redefine performance standards, offering reliability and precision for demanding applications.

Features:

• Jitter: 25fs RMS, 12kHz to 20MHz with 4MHz HPF
• Output frequency range:
  • 4kHz to 1GHz for differential outputs
  • 4kHz to 250MHz for single-ended outputs
• Up to 12 HCSL or LVDS outputs with independent integer dividers; differential outputs can be configured as two single-ended outputs
• Up to four clock inputs that can each be configured as differential or as two single-ended inputs
• Input frequency range:
  • 1kHz to 1GHz for differential inputs
  • 1kHz to 250MHz for single-ended inputs
• Compliant to ITU-T G.8262 and G.8262.1
• Hitless reference switching, manual or automatic
• DPLL input-to-output phase variation ≤ 500ps
• DCO frequency resolution < 10-13
• Factory programmable internal OTP
• RC32312:
  • 4 inputs and 12 outputs
  • 9 × 9 mm, 64-VFQFPN
• RC32308:
  • 3 inputs and 8 outputs
  • 7 × 7 mm, 48-VFQFPN
• Operating voltage: 1.8V
  • Serial ports support 1.8V or 3.3V
• Operating temperature:
  • -40°C to 85°C ambient
  • -40°C to 105°C board

Applications:

• Jitter attenuation for:
  • 112Gbps and 224Gbps SerDes
  • 100 / 200 / 400 / 800 / 1600 Gbps Ethernet PHYs
• Synchronous Ethernet timing cards and line cards
• Switches and routers
• Medical imaging
• Test and measurement