NEC 78K0S/KA1+ Preliminary User's Manual page 70

CHAPTER 5 CLOCK GENERATORS
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Figure 5-8 shows examples of incorrect resonator connection.
Figure 5-8. Examples of Incorrect Resonator Connection (1/2)
(a) Too long wiring of connected circuit (b) Crossed signal lines
PORT
V X1 X2 V X1 X2
SS
SS
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(d) Current flowing through ground line of oscillator
(c) Wiring near high fluctuating current
(Potential at points A, B, and C fluctuates.)
V
DD
PORT
V X1 X2
SS
V X1 X2
SS
A B C
High current
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Preliminary User's Manual U16898EJ1V0UD