Overview

Description

The 83908I-02 is a low skew, high performance 1-to-8 Crystal Oscillator/Crystal-to-LVCMOS fanout buffer. The 83908I-02 has selectable single-ended clock or two crystal-oscillator inputs. There is an output enable to disable the outputs by placing them into a high-impedance state. Guaranteed output and part-to-part skew characteristics make the 83908I-02 ideal for those applications demanding well defined performance and repeatability.

Features

  • Eight LVCMOS/LVTTL outputs , 19Ω typical output impedance @ VDD = VDDO = 3.3V
  • Two Crystal oscillator input pairs One LVCMOS/LVTTL clock input
  • Crystal input frequency range: 10MHz - 40MHz
  • Output frequency: 200MHz (typical)
  • Output Skew: 70ps (maximum) @ VDD = VDDO = 3.3V
  • Part-to-part skew: 700ps (maximum) @ VDD = VDDO = 3.3V
  • RMS phase jitter @ 25MHz output using a 25MHz crystal (12kHz - 10MHz): 0.39ps (typical) @ VDD = VDDO = 3.3V
    Offset                      Noise Power
      100Hz ............. -111.4 dBc/Hz
        1kHz ............. -139.9 dBc/Hz
      10kHz ............. -157.3 dBc/Hz
    100kHz ............. -157.5 dBc/Hz
  • Supply Voltage Modes:
    (Core/Output)
    3.3V/3.3V
    3.3V/2.5V
    3.3V/1.8V
    2.5V/2.5V
    2.5V/1.8V
  • -40°C to 85°C ambient operating temperature
  • Available in lead-free (RoHS 6) package

Comparison

Applications

Documentation

Design & Development

Models