MB88155 Datasheet - Fujitsu Media Devices

MB88155 Spread Spectrum Clock Generator

MB88155 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. For modulation, the MB88155 supports both center-spreading a.

MB88155 Features

* Input frequency :

* 12.5 MHz to 50 MHz (Multiplied by 1) 12.5 MHz to 20 MHz (Multiplied by 4) Output frequency : CKOUT 12.5 MHz to 80 MHz REFOUT The same as input frequency (not multiplied) Modulation rate : ± 0.5%, ± 1.0% (center spread) ,

* 1

MB88155_FujitsuMediaDevices.pdf