MB88155 Fujitsu Media Devices, MB88155 Datasheet - Page 9

• Manufacturer Part Number: MB88155
• Description: Spread Spectrum Clock Generator
• Manufacturer: Fujitsu Media Devices

ENS modulation enable setting
Note : Spectrum does not diffuse when “L” is set to ENS pin.
XPD power down
Note : When setting “L” to XPD pin, it becomes power down mode (low power consumption mode) .
SEL modulation rate setting
Note : The modulation rate can be changed at the level of the pin.
PIN SETTING
The modulation clock requires stabilization wait time after the PIN setting is changed. For the modulation clock
stabilization wait time, assure the maximum value for “Lock-up time” in the AC Characteristics list in
“ ELECTRICAL CHARACTERISTICS”.
MB88155-xx2, xx3 do not have ENS pin.
Both CKOUT and REFOUT of output pins are fixed to “L” output during power down.
MB88155-xx0, xx1 do not have XPD pin.
ENS
XPD
H
H
L
L
SEL
H
L
Power down status
Operating status
No modulation
Modulation
± 0.5%
− 1.0%
± 1.0%
− 2.0%
Modulation
Status
Frequency
MB88155-xx0, xx1
MB88155-xx2, xx3
MB88155-x1x
MB88155-x0x
MB88155-x1x
MB88155-x0x
MB88155
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