MB88151A datasheet(2/27 Pages) CYPRESS

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MB88151A

Spread Spectrum Clock Generator

Cypress Semiconductor Corporation

•

198 Champion Court

•

San Jose

, CA 95134-1709

•

408-943-2600

Document Number: 002-08311 Rev. *B

Revised December 18, 2017

MB88151A is a clock generator for EMI (Electro Magnetic Interference) reduction. The peak of unnecessary radiation 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

■ 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%

■ Low current consumption by CMOS process : 5 mA (24 MHz : Typ-sample, no load)

■ Power supply voltage : 3.3 V

± 0.3 V

■ Operating temperature :

− 40 °C to + 85 °C

■ Package : SOP 8-pin

MB88151A-100

(Multiply-by-1)

MB88151A-200

(Multiply-by-2)

Input frequency/

Output frequency

16.6 MHz to 33.4 MHz/

16.6 MHz to 33.4 MHz

16.6 MHz to 33.4 MHz/

33.2 MHz to 66.8 MHz

Modulation clock

cycle-cycle jitter

Less than100 ps

Less than 100 ps

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