CHAPTER 5 CLOCK GENERATORS
User’s Manual U18172EJ2V0UD
71
Figure 5-7 shows examples of incorrect resonator connection.
Figure 5-7. Examples of Incorrect Resonator Connection (1/2)
(a) Too long wiring of connected circuit
(b) Crossed signal lines
V
SS
X1
X2
V
SS
X1
X2
PORT
(c) Wiring near high fluctuating current
(d) Current flowing through ground line of oscillator
(Potential at points A, B, and C fluctuates.)
V
SS
X1
X2
High current
V
SS
X1
X2
PORT
V
DD
A
B
C
High current