Overview

The 7151-10, -20, -40, and -50 are clock generators for EMI (Electro Magnetic Interference) reduction (see below for frequency ranges and multiplier ratios). Spectral peaks can be attenuated by slightly modulating the oscillation frequency. Both down and center spread profiles are selectable. Down spread maintains an average frequency less than an unspread clock, and will not exceed the maximum frequency of an unspread clock.

7151 - Block Diagram
7151 - Block Diagram
  • Operating voltage of 3.3 V ±0.3 V
  • Packaged in 8-pin SOIC
  • Pb (lead) free package, RoHS compliant
  • Input frequency range of 16.5 to 33.4 MHz
  • Output frequency ranges of 8.3 to 16.7 MHz, 16.5 to 33.4 MHz, 33.3 to 66.7 MHz, 66.6 to 133.4 MHz
  • Provides a spread spectrum clock output (±0.5%, ±1.5% center spread
  • -1.0%, -3.0% down spread)
  • Multiplication rates of x1/2, x1, x2, and x4
  • Advanced, low-power CMOS process

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.

Explore ECAD Models
Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Lead Count (#)
    Temp. Grade
    Pb (Lead) Free
    Carrier Type
    Buy / Sample
    Part Number
    7151M-10LF
    circleObsolete
    memory
    view_in_ar
    		SOIC 8 C Yes Tube
    7151M-10LFT
    circleObsolete
    memory
    view_in_ar
    		SOIC 8 C Yes Reel
    7151M-20LF
    circleObsolete
    memory
    view_in_ar
    		SOIC 8 C Yes Tube
    7151M-20LFT
    circleObsolete
    memory
    view_in_ar
    		SOIC 8 C Yes Reel
    7151M-40LF
    circleObsolete
    memory
    view_in_ar
    		SOIC 8 C Yes Tube
    7151M-40LFT
    circleObsolete
    memory
    view_in_ar
    		SOIC 8 C Yes Reel
    7151M-50LF
    circleObsolete
    memory
    view_in_ar
    		SOIC 8 C Yes Tube
    7151M-50LFT
    circleObsolete
    memory
    view_in_ar
    		SOIC 8 C Yes Reel
    7151MI-10LF
    circleObsolete
    memory
    view_in_ar
    		SOIC 8 I Yes Tube
    7151MI-10LFT
    circleObsolete
    memory
    view_in_ar
    		SOIC 8 I Yes Reel
    7151MI-20LF
    circleObsolete
    memory
    view_in_ar
    		SOIC 8 I Yes Tube
    7151MI-20LFT
    circleObsolete
    memory
    view_in_ar
    		SOIC 8 I Yes Reel
    7151MI-40LF
    circleObsolete
    memory
    view_in_ar
    		SOIC 8 I Yes Tube
    7151MI-40LFT
    circleObsolete
    memory
    view_in_ar
    		SOIC 8 I Yes Reel
    Parametric Table tips

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