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845264 Datasheet Crystal-to-cml Clock Generator

Manufacturer: Renesas

Overview: FemtoClock®Crystal-to-CML Clock Generator 845264 DATA SHEET General.

Datasheet Details

Part number 845264
Manufacturer Renesas
File Size 573.01 KB
Description Crystal-to-CML Clock Generator
Datasheet 845264-Renesas.pdf

General Description

The 845264 is a 3.3V, 2.5V CML clock generator designed for Ethernet applications.

The device synthesizes four clock frequencies on two separately selectable output banks.

Each bank has either a 62.5MHz, 125MHz, 156.25MHz or 312.5MHz clock signal with excellent phase jitter performance.

Key Features

  • Clock generation of: 62.5MHz, 125MHz, 156.25MHz and 312.5MHz.
  • Two banks of two differential CML clock outputs.
  • Crystal interface designed for 25MHz, 12pF parallel resonant crystal.
  • RMS phase jitter @ 125MHz, using a 25MHz crystal (1.875MHz.
  • 20MHz): 0.486ps (typical) Offset Single-side Band Phase Noise 100Hz -97 dBc/Hz 1kHz-118 dBc/Hz 10kHz-125 dBc/Hz 100kHz-123 dBc/Hz.
  • LVCMOS interface levels for the control inputs.
  • Full 3.3.

845264 Distributor