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8V19N474 - Jitter Attenuator and Clock Synthesizer

General Description

The 8V19N474 is a fully integrated FemtoClock NG Jitter Attenuator and Clock Synthesizer designed as a high-performance clock solution for conditioning and frequency/phase management of 10/40/100/400 Gigabit-Ethernet line cards.

Key Features

  • High-performance clock RF-PLL.
  • Optimized for low phase noise: -153dBc/Hz (1MHz offset; 156.25MHz clock).
  • Integrated phase noise (12kHz.
  • 20MHz) of 75fs RMS typical.
  • Dual-PLL architecture.
  • 1st-PLL stage with external VCXO for clock jitter attenuation.
  • 2nd-PLL stage with internal FemtoClock NG PLL at 2500MHz.
  • 6 output banks with a total of 12 outputs, organized in:.
  • Two clock banks with one integer frequency divider and three diffe.

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Datasheet Details

Part number 8V19N474
Manufacturer Renesas
File Size 1.08 MB
Description Jitter Attenuator and Clock Synthesizer
Datasheet download datasheet 8V19N474 Datasheet

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Full PDF Text Transcription (Reference)

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FemtoClock® NG Jitter Attenuator and Clock Synthesizer 8V19N474 Datasheet Description The 8V19N474 is a fully integrated FemtoClock NG Jitter Attenuator and Clock Synthesizer designed as a high-performance clock solution for conditioning and frequency/phase management of 10/40/100/400 Gigabit-Ethernet line cards. The device delivers excellent phase noise performance as required to drive physical layer devices, and provides the clean clock frequencies (e.g., 625MHz, 500MHz, 312.5MHz, 250MHz, 156.25MHz, and 125MHz). A two-stage PLL architecture supports both jitter attenuation and frequency multiplication. The first stage PLL is the jitter attenuator and uses an external VCXO for best possible phase noise characteristics.