NEC PD75P402 User Manual Page 69

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58
CHAPTER 5. PERIPHERAL HARDWARE FUNCTIONS
Fig. 5-13 Example of Poor Resonator Connection Circuit (2/2)
(c) Signal line close to varyin high current (d) Current flows an oscillator power supply line.
(potentials at A, B and C fluctuate.)
High
current
X1 X2
V
DD
V
DD
µ
PD75402A
X1 X2
A
V
DD
V
DD
PORTn
C B
µ
PD75402A
(e) Signal is picked up.
X1 X2
V
DD
µ
PD75402A
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