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CHAPTER 4 CLOCK GENERATOR
User’s Manual U12697EJ3V0UM
Figure 4-8. Incorrect Examples of Resonator Connection (2/2)
(c) Fluctuating high current is too near a
(d) Current flows through the ground line
signal line
of the oscillator (potential at points A, B,
and C fluctuate)
(e)
Signals are fetched
Remark
When using a subsystem clock, replace X1 and X2 with XT1 and XT2, respectively. Also, insert resistors
in series on the XT2 side.
Cautions 2. When XT2 and X1 are wired in parallel, the crosstalk noise of X1 may increase with XT2,
resulting in malfunctioning. To prevent this from occurring, it is recommended not to wire
XT1 and XT2 in parallel.
X2
High
current
X1
V
SS1
X2
Pnm
X1
V
SS1
V
DD0
A
B
C
High
current
X2
X1
V
SS1
