MB91F376G Fujitsu Components, MB91F376G Datasheet - Page 110

• Manufacturer Part Number: MB91F376G
• Manufacturer: Fujitsu Components

Specifications of MB91F376G

• Lead Free Status / Rohs Status: Not Compliant

MB91360G Series
3. Clock Modulator
An important property of MCUs and other electronic devices is their electromagnetic compatibility - EMC. Besides
a low susceptibility against external interferences, a low radiated emission is desired to avoid interference of
adjacent devices.
Particularly the system clock and derived signals such as data- and address busses contribute significantly to
the radiated emission. The purpose of the clock modulator is to spread the energy of these signals over a wide
range of frequencies and thus reducing the amplitudes of the fundamental and harmonic frequencies.
With the use of an advanced frequency modulation algorithm, the Fujitsu Microelectronics built in clock modulator
can achieve an attenuation of up to 20-25 dB compared to non modulated clock operation. Since the modulator
is highly configurable, it can be optimally adjusted to the actual application in order to achieve minimal electro-
magnetic interference.
By default, the modulator is disabled and the MCU is running with unmodulated clock.
If you plan to use this feature, please contact Fujitsu Microelectronics.
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