MB88155
• AC Characteristics
Parameter
Symbol Pin
(Ta = − 40 °C to + 85 °C, VDD = 3.3 V ± 0.3 V, VSS = 0.0 V)
Conditions
Value
Unit
Min
Typ
Max
Oscillation
frequency
fx
XIN, Fundamental oscillation
XOUT 3rd overtone
12.5
40
40
MHz
48
MB88155 − 1x0, 1x2
12.5
25
Input frequency
fin
XIN MB88155 − 1x1, 1x3
25
50 MHz
MB88155 − 4xx
12.5
20
MB88155 − 1x0, 1x2
12.5
25
REFOUT MB88155 − 1x1, 1x3
25
50
Output frequency
fOUT
MB88155 − 4xx
MB88155 − 1x0, 1x2
12.5
12.5
20
MHz
25
CKOUT MB88155 − 1x1, 1x3
25
50
MB88155 − 4xx
50
80
SRc
CKOUT
Load capacitance 15 pF,
0.4 V to 2.4 V
0.4
4.0
Output slew rate
V/ns
SRR
REFOUT
Load capacitance 15 pF,
0.4 V to 2.4 V
0.3
2.0
Output clock
duty cycle
tDCC CKOUT 1.5 V reference level
tDCR REFOUT 1.5 V reference level
40
60
%
tDCI − 10*1
tDCI + 10*1
Modulation
frequency
fMOD CKOUT Input frequency at 24 MHz
32.4
kHz
Lock-up time*2
tLK
CKOUT
2
5
ms
MB88155 − 1xx
Input frequency
12.5 MHz to 20 MHz,
No load capacitance,
Ta = + 25 °C, VDD = 3.3 V,
Standard deviation σ
150
ps
Cycle-cycle jitter
MB88155 − 1xx
tJC
CKOUT
Input frequency
20 MHz to 50 MHz,
No load capacitance,
Ta = + 25 °C, VDD = 3.3 V,
Standard deviation σ
100
ps
MB88155 − 4xx
No load capacitance,
Ta = + 25 °C, VDD = 3.3 V,
Standard deviation σ
200
ps
*1 : Duty of the REFOUT output is guaranteed only for the following A and B because it depends on tDCI of input
clock duty.
A. Resonator input : When resonator is connected with XIN pin and XOUT pin, and oscillates normally.
B. External clock input : The input level is Full-swing (VSS − VDD).
*2 : The modulation clock requires stabilization wait time after the IC is turned on or released from power-down
mode, or after SEL (modulation factor) or ENS (modulation enable) setting is changed. For the modulation clock
stabilization wait time, assure the maximum value for the lock-up time.
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