mc68hc908jw32 Freescale Semiconductor, Inc, mc68hc908jw32 Datasheet - Page 72

• Manufacturer Part Number: mc68hc908jw32
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Clock Generator Module (CGM)
5.8.3 Choosing a Filter
As described in
stability and reaction time of the PLL. The PLL is also dependent on reference frequency and supply
voltage.
Either of the filter networks in
(CGMRCLK).
low-cost applications where stability is not critical.
72
Figure 5-10
5.8.2 Parametric Influences on Reaction
(a) is used for applications requiring better stability.
2n2 nF
Figure 5-10
2 kΩ
CGMXFC
MC68HC908JW32 Data Sheet, Rev. 5
(a)
Figure 5-10. PLL Filter
V
is recommended when using a 4MHz reference clock
SS
100 pF
Time, the external filter network is critical to the
CGMXFC
V
(b)
SS
0.22 μF
Figure 5-10
Freescale Semiconductor
(b) is used in