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M16C/62P Group (M16C/62P, M16C/62PT)
24.3 PLL Frequency Synthesizer
Stabilize supply voltage so that the standard of the power supply ripple is met.
S y m b o l
f
Power supply ripple allowable frequency (V
(ripple)
V
P o w e r s u p p l y r i p p l e a l l o w a b l e a m p l i t u d e
P - P ( r i p p l e )
v o l t a g e
V
C C ( | ∆ V / ∆ T | )
P o w e r s u p p l y r i p p l e r i s i n g / f a l l i n g g r a d i e n t
f
( r i p p l e )
P o w e r s u p p l y r i p p l e a l l o w a b l e f r e q u e n c y
( V
)
C C 1
V
p - p ( r i p p l e )
P o w e r s u p p l y r i p p l e a l l o w a b l e a m p l i t u d e
v o l t a g e
Figure 24.2 Timing of Voltage Fluctuation
R
e
. v
2
3 .
0
S
e
p
0
, 1
2
0
0
4
R
E
J
0
9
B
0
1
8
5
0 -
2
3
0
Z
P a r a m e t e r
V
CC1
page 328
f o
3
6
4
Min.
)
CC1
( V
= 5 V )
C C 1
( V
= 3 V )
C C 1
( V
= 5 V )
C C 1
( V
= 3 V )
C C 1
f
(ripple)
24. Usage Precaution
S t a n d a r d
U n i t
T y p .
M a x .
10
kHz
0.5
0 . 3
0 . 3
V / m s
0 . 3
V / m s
V
p-p(ripple)
V
V
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