MB88151A Datasheet, PDF (6/22 Pages) Fujitsu Component Limited. – Spread Spectrum Clock Generator

MB88151A
■ PIN SETTING
When changing the pin setting, the stabilization wait time for the modulation clock is required. The stabilization
wait time for the modulation clock take the maximum value of “■ ELECTRICAL CHARACTERISTICS • AC
Characteristics Lock-up time”.
ENS modulation enable setting (MB88151A-100/200/400/500/800)
ENS
Modulation
L
No modulation
H
Modulation
Note : Spectrum does not spread when “L” is set to ENS. The clock with low jitter can be obtained. Because of ENS
has Pull-up resistance, spectrum spread when “H” is set to it or open the terminal.
XPD Power down setting (MB88151A-101/201/401/501/801)
XPD
Status
L
Power down Status
H
Operating status
Note : CKOUT of output pins are fixed to “L” output during power down.
SEL0, SEL1 Modulation rate setting
SEL1
SEL0
Modulation rate
L
L
± 1.5%
L
H
± 0.5%
H
L
− 1.0%
H
H
− 3.0%
Modulation type
Center spread
Center spread
Down spread
Down spread
Note : The modulation rate can be changed at the level of the terminal.
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