SM5050A
Switching Characteristics
VDD = 2.7 to 3.6V, VSS = 0V, Ta = −20 to 80°C unless otherwise noted
Parameter
Symbol
Condition
Rating
Unit
min
typ
max
Output rise time
Output fall time
Output duty cycle
Output disable delay time1
Startup time2,3
Oscillator frequency
tr
0.2VDD → 0.8VDD, measurement
circuit 1, load circuit 1, CL = 15pF
–
tf
0.8VDD → 0.2VDD, measurement
circuit 1, load circuit 1, CL = 15pF
–
V D D = 3V, Ta = 25°C , measurement
Duty circuit 1, load circuit 1, CL = 15pF,
40
f ≤ 166.6MHz
tP L Z
V D D = 3V, Ta = 25°C , measurement
circuit 1, load circuit 1, CL = 15pF
–
tS Z L
V D D = 3V, Ta = 25°C , measurement
circuit 1, load circuit 1, CL = 15pF
–
f
Measurement circuit 1
20
1
2.5
ns
1
2.5
ns
–
60
%
–
100
ns
1
–
ms
–
40
MHz
Output frequency
Output clock jitter3
VDD = 2.7V
100
fO U T
Measurement circuit 1
VDD = 3.0V
100
V D D = 3V, Ta = 25°C , 25MHz crystal,
Jitter
P0 = HIGH, P1 = LOW , measurement
circuit 1, load circuit 1,CL = 15pF,
–
peak-to-peak
–
125
MHz
–
166.6
100
–
ps
1. Time from when INHN goes LOW until Q output goes high impedance.
2. Time from when either INHN goes LOW to HIGH or supply voltage VDD = 3.0V until normal signal output.
3. Measured values using NPC characteristics standard evaluation board and standard crystal.
NPC STANDARD CRYSTAL DATA
Cb
L Ca R
f (MHz)
25
27
R (Ω)
4.368
7.421
L (mH)
1.885
2.402
Ca (fF)
21.52
14.48
Cb (pF)
4.793
4.097
NIPPON PRECISION CIRCUITS—5