MB88151A 데이터 시트보기 (PDF) - Cypress Semiconductor

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MB88151A

Spread Spectrum Clock Generator

Cypress Semiconductor 

MB88151A

Spread Spectrum Clock Generator

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

Input frequency/

Output frequency

Modulation clock

cycle-cycle jitter

MB88151A-100

(Multiply-by-1)

MB88151A-200

(Multiply-by-2)

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

Less than100 ps

Less than 100 ps

■ 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

Cypress Semiconductor Corporation • 198 Champion Court

Document Number: 002-08311 Rev. *B

• San Jose, CA 95134-1709 • 408-943-2600

Revised December 18, 2017

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