MB88152 View Datasheet(PDF) - Fujitsu

Part Name

Description

Manufacturer

MB88152

Spread Spectrum Clock Generator

Fujitsu 

s BLOCK DIAGRAM

VDD

MB88152

Modulation rate setting

SEL

FREQ/FREQ0

XENS/FREQ1

Frequency setting

Modulation enable /

freaquency setting

XOUT Reference clock

PLL block

20 MHz to 134 MHz

down/center

spread

Clock output

CKOUT

XIN

Rf = 1 MΩ

VSS

Reference

clock

1

−

M

Phase

compare

C.P.

V/I

convertion

IDAC

1

Loop filter

−

N

ICO

Modulation

clock

output

1

−

L

MB88152 PLL block

Modulation logic

Modulation

rate setting

SEL

XENS

5

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