Advertisement
M16C/5L Group, M16C/56 Group
8.9.5
PLL Frequency Synthesizer
To use the PLL frequency synthesizer, stabilize the supply voltage within the acceptable range of power
supply ripple.
Table 8.9
Acceptable Range of Power Supply Ripple
Symbol
f
Power supply ripple allowable frequency (VCC)
(ripple)
V
Power supply ripple allowable
P-P(ripple)
amplitude voltage
CC(| Δ V / Δ T|)
V
Power supply ripple rising/falling
gradient
f(ripple)
Power supply ripple allowable
frequency
(
)
VCC
Vp-p(ripple)
Power supply ripple allowable
amplitude voltage
Figure 8.11
Voltage Fluctuation Timing
R01UH0127EJ0110 Rev.1.10
Sep 01, 2011
Parameter
(VCC = 5 V)
(VCC = 3 V)
(VCC = 5 V)
(VCC = 3 V)
VCC
Standard
Min.
Typ.
f
(ripple)
8. Clock Generator
Unit
Max.
10
kHz
0.5
V
0.3
V
0.3
V/ms
0.3
V/ms
V
p-p(ripple)
Page 117 of 803
Advertisement
