Overview

The 83908-02 is a low skew, high performance 1-to-8 Crystal Oscillator//Crystal-to-LVCMOS fanout buffer. The 83908-02 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 83908-02 ideal for those applications demanding well defined performance and repeatability.
83908-02 - Block Diagram
83908-02 - Pinout
83908-02 - Block Diagram
83908-02 - Pinout
  • Eight LVCMOS / LVTTL outputs, 19 typical output impedance at VDD = VDDO = 3.3V
  • Two crystal oscillator input pairs
    One LVCMOS / LVTTL clock input
  • Crystal input frequency range: 10MHz – 40MHz
  • Output frequency: 200MHz (maximum)
  • Output skew: 70ps (maximum) at VDD = VDDO = 3.3V
  • Part-to-part skew: 700ps (maximum) at VDD = VDDO = 3.3V
  • RMS phase jitter @ 25MHz output, using a 25MHz crystal,
    (12kHz – 10MHz): 0.39ps (typical) at VDD = VDDO = 3.3V
  • RMS phase noise at 25MHz
    Offset                         Noise Power
      100Hz ................. -111.4 dBc/Hz
        1kHz ................. -139.9 dBc/Hz
      10kHz.................. -157.3 dBc/Hz
    100kHz ................. -157.5 dBc/Hz
  • Power 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
  • 0°C to 70°C ambient operating temperature
  • Lead-free (RoHS 6) packaging​

Documentation

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

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Product Options

    Processing table
    Pkg. Type
    Lead Count (#)
    Temp. Grade
    Pb (Lead) Free
    Carrier Type
    Buy / Sample
    Part Number
    83908AG-02LF
    circleObsolete
    memory
    view_in_ar
    		TSSOP 24 C Yes Tube
    83908AG-02LFT
    circleObsolete
    memory
    view_in_ar
    		TSSOP 24 C Yes Reel
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