Pll Frequency Synthesizer - Renesas M16C/64A Series User Manual

M16C/64A 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 (VCC1)
(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 VCC1
Vp-p(ripple)
Power supply ripple allowable
amplitude voltage
Figure 8.11 Voltage Fluctuation Timing
R01UH0136EJ0210 Rev.2.10
Jul 31, 2012
Parameter
)
VCC1
Standard
Min.
(VCC1 = 5 V)
(VCC1 = 3 V)
(VCC1 = 5 V)
(VCC1 = 3 V)
f
(ripple)
8. Clock Generator
Unit
Typ. Max.
10 kHz
0.5 V
0.3 V
0.3 V/ms
0.3 V/ms
V
p-p(ripple)
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