Datasheet

CHAPTER 5 CLOCK GENERATORS
User’s Manual U18172EJ3V0UD
80
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
VSS
X1 X2
VSS
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
AB C
High current