MB88151A Datasheet, PDF (11/22 Pages) Fujitsu Component Limited. – Spread Spectrum Clock Generator

MB88151A
• AC Characteristics
(Ta = − 40 °C to + 85 °C, VDD = 3.3 V ± 0.3 V, VSS = 0.0 V)
Parameter
Symbol Pin
Conditions
Value
Unit
Min
Typ
Max
Oscillation frequency
fx
XIN,
XOUT
Fundamental
oscillation
8.3
⎯
33.4 MHz
Input frequency
External clock input
(multiply-by-1, 2, 4,
16.6
⎯
33.4
fin
XIN
divided by 2)
MHz
External clock input
(multiply-by-8)
8.3
⎯
16.7
MB88151A-100/101
(Multiply by 1)
16.6
⎯
33.4
MB88151A-200/201
(Multiply by 2)
33.2
⎯
66.8
Output frequency
fOUT
CKOUT
MB88151A-400/401
(Multiply by 4)
66.4
⎯
133.6 MHz
MB88151A-500/501
(2-frequency division)
8.3
⎯
16.7
MB88151A-800/801
(multiply-by-8)
66.4
⎯
133.6
Output slew rate
SR
CKOUT
0.4 V to 2.4 V
Load capacitance 15 pF
0.4
⎯
4.0 V/ns
Output clock duty cycle
tDCC CKOUT
1.5 V
40
⎯
60
%
Modulation period
(Number of input clocks
per modulation)
fMOD
(nMOD)
MB88151A-100/101,
MB88151A-200/201,
MB88151A-400/401,
CKOUT _{MB88151A-500/501}
MB88151A-800/801
fin/2200 fin/1900 fin/1600 kHz
(2200) (1900) (1600) (clks)
fin/880 fin/760 fin/640 kHz
(880) (760) (640) (clks)
Lock-up time
8.3 MHz to 80 MHz
⎯
2
tLK CKOUT
80 MHz to 133.6 MHz
⎯
3
5
ms
8
MB88151A-100/101,
MB88151A-200/201
No load capacitance,
⎯
Ta = + 25 °C, VDD = 3.3 V
⎯
100
Cycle-cycle jitter
MB88151A-400/401,
tJC CKOUT MB88151A-800/801
No load capacitance,
⎯
Ta = + 25 °C, VDD = 3.3 V
⎯
150 ^ps-rms
MB88151A-500/501
No load capacitance,
⎯
Ta = + 25 °C, VDD = 3.3 V
⎯
200
Note : The modulation clock stabilization wait time is required after the power is turned on, the IC recovers from
power saving, or after FREQ (frequency range) or ENS (modulation ON/OFF) setting is changed. For the
modulation clock stabilization wait time, assign the maximum value for lock-up time.
11