MB88151 Ver la hoja de datos (PDF) - Fujitsu

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MB88151

Spread Spectrum Clock Generator

Fujitsu 

FUJITSU SEMICONDUCTOR

DATA SHEET

DS04-29116-2E

Spread Spectrum Clock Generator

MB88151

■ DESCRIPTION

MB88151 is a clock generator for EMI (Electro Magnetic Interference) reduction. The peak of unnecessary radi-

ation noise (EMI) can be attenuated by making the oscillation frequency slightly modulate periodically with the

internal modulator. It corresponds to both of the center spread which modulates frequency in modulation off as

Middle Centered and down spread which modulates so as not to exceed frequency in modulation off.

■ FEATURES

• Input frequency : 16.6 MHz to 33.4 MHz

• Multiplication rate : 1/2, 1, 2, 4

• Output frequency : 8.3 MHz to 16.7 MHz, 16.6 MHz to 33.4 MHz, 33.3 MHz to 66.7 MHz, 66.6 MHz to 133.4 MHz

• Modulation rate : ± 0.5%, ± 1.5% (Center spread), − 1.0%, − 3.0% (Down spread)

• Equipped with oscillation circuit : Range of oscillation 16.6 MHz to 33.4 MHz

• Modulation clock output Duty : 40% to 60%

(Continued)

■ PACKAGE

8-pin plastic SOP

(FPT-8P-M02)

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