M16C/62P Group (M16C/62P, M16C/62PT)
24. Precautions
Rev.2.41
Jan 10, 2006
Page 362 of 390
REJ09B0185-0241
24.4
PLL Frequency Synthesizer
Stabilize supply voltage so that the standard of the power supply ripple is met.
Figure 24.2
Timing of Voltage Fluctuation
Symbol
Parameter
Standard
Unit
Min.
Typ.
Max.
f
(ripple)
Power supply ripple allowable frequency (V
CC1
)
10
kHz
V
P-P(ripple)
Power supply ripple allowable
amplitude voltage
(V
CC1
=5V)
0.5
V
(V
CC1
=3V)
0.3
V
V
CC(|
∆
V /
∆
T|)
Power supply ripple rising / falling
gradient
(V
CC1
=5V)
0.3
V/ms
(V
CC1
=3V)
0.3
V/ms
V
p-p(ripple)
f
(ripple)
V
CC1
f
(ripple)
Power supply ripple allowable frequency
(V
CC1
)
V
p-p(ripple)
Power supply ripple allowable
amplitude voltage
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