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Spread-spectrum clock generator consumes 18.2mW

Posted: 22 Apr 2003 ?? ?Print Version ?Bookmark and Share

Keywords:fujistu? mb88150? mb88151? mb88152? mb88153?

The MB88150 series of spread-spectrum clock generator (SSCG) from Fujitsu Ltd utilizes a CMOS production process, enabling it to achieve a power consumption of 18.2mW - the lowest in the world.

The ICs also use digital control to generate the oscillator clock's modulation wave and increase accuracy. This design allows a reduction of up to 19dB in EMI noise and eliminates the need for additional EMI noise-reduction components used in conventional clock generators.

Available in 8-pin SSOPs, the SSCG's operate from a 3.3V supply and draw 4.5mA to 5.5mA of current. Input frequency ranges from 16.6MHz to 67MHz while output frequency ranges from 8.3MHz to 67MHz. Typical cycle-to-cycle jitter is <100ps.

The series includes the MB88151 with built-in frequency multiplier, MB88152 with pin for input frequency precision, MB88153 with power-down pin and external clock input, and the MB88154 with reference clock output.





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