[AK4685]
■ Cristal Oscillator Circuit
The clock for the MCB/XTI pin can be generated by the two methods:
1) X’tal
XTI
C
25kΩ(typ)
C
XTO
AK4685
Note 29. The capacitor value is depend on the crystal oscillator (Typ.10-40pF)
Figure 2. X’tal Mode
2) External Clock
- Note: The clock must not over DVDD.
C
XTI
XTI
External
Clock
External
Clock
25kΩ(typ)
25kΩ(typ)
XTO
XTO
AK4685
AK4685
(Input: CMOS Level)
Figure 3. Direct Input
(Input: ≥40%DVDD, C=0.1μF)
Figure 4. AC coupled
MS1106-E-00
2009/08
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