Pll Frequency Synthesizer - Renesas M16C/64C User Manual

M16C/64C 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
R01UH0092EJ0110 Rev.1.10
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)
Page 109 of 807