Overview

Description

The 844201I-45 is a PCI Express®TM Clock Generator. The 844201I-45 can synthesize 100MHz or 125MHz reference clock frequencies with a 25MHz crystal. The 844201I-45 has excellent phase jitter performance and is packaged in a small 16-pin VFQFN, making it ideal for use in systems with limited board space.

Features

  • One differential LVDS output pair
  • Crystal oscillator interface designed for 18pF, 25MHz parallel resonant crystal
  • VCO range: 490MHz - 680MHz
  • RMS phase jitter at 100MHz (12kHz - 20MHz): 0.792ps (typical)
  • RMS phase jitter at 125MHz (12kHz - 20MHz): 0.773ps (typical)
  • Full 3.3V output supply mode
  • PCI Express® (2.5 Gb/s) and Gen 2 (5 Gb/S) jitter compliant
  • -40°C to 85°C ambient operating temperature
  • Available in lead-free (RoHS 6) package

Comparison

Applications

Documentation

Design & Development

Models

Videos & Training

PCIe Clocking Architectures (Common and Separate)

This is the first video in our PCIe series. In this video, we define PCIe architectures, focusing on common and separate clock architectures. Watch the rest of the video series below where Ron will cover the impact of different timing architectures.

Watch the Video Series Below