Datasheet Summary
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FUJITSU SEMICONDUCTOR DATA SHEET
DS04-29120-1E
Spread Spectrum Clock Generator
- DESCRIPTION
MB88156 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. The modulation corresponds to the center spread and down spread. The multiplication ratio can be changed by the pin setting. Also, the pin can be set whether the modulation is changed. For no modulation, it has the center-non-spread to fix to the output frequency conforming to the multiplication setting and down-non-spread to fix...