[AK4753]
■ Crystal Oscillator Circuit
A clock for the XTI/MCKI pin can be generated by the following three methods.
1. X’tal Mode (PWXTAL bit= “1”)
XTI
C
160kΩ
(typ)
C
AK4753
AK4683
XTO
Figure 16. X’tal Mode
Note: The value of the capacitor depends on a crystal (Typ.10-40pF).
2. External Clock Mode (PWXTAL bit= “1”)
Note: Do not input a clock beyond the voltage of DVDD.
XTI/MCKI
XTI/MCKI
External
Clock
External
C
Clock
160kΩ
(typ)
160kΩ
(typ)
XTO
XTO
AK4753
AK4683
AK4753
AK4683
Figure 17. Direct Connection
(Input: CMOS Level)
Figure 18. AC Coupling Connection
(Input: ≥ 40%DVDD, C=1000pF)
3. OFF Mode of XTI/MCKI, XTO pins (PWXTAL bit= “0”)
XTI/MCKI
160kΩ
(typ)
XTO
AK4753
AK4683
Figure 19. OFF Mode
MS1311-E-00
2011/07
- 20 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
