ASAHI KASEI
[AK4115]
X’tal Oscillator
The AK4115 has two X’tal oscillators. They can not operate at the same time. The operation of the X’tal oscillator is
selected by the XSEL bit or the XSEL pin.
Status
XSEL
X’tal #1
Power-Up
X’tal #2
Power-Down
Power-Up
0
1
Power-Down
Table 12. Setting of X’tal oscillator
The following circuits are available to feed the clock to the XTI1/2 pins of AK4115.
1) X’tal
XTI1/2
AK4115
XTO1/2
Note: External capacitance depends upon the crystal oscillator (typ. 5-10pF)
Figure 18. X’tal mode
2) External clock
XTI1/2
External Clock
AK4115
XTO1/2
Figure 19. External clock mode
3) Fixed to the Clock Operation Mode 0
XTI1/2
AK4115
XTO1/2
Figure 20. OFF mode
MS0573-E-00
2006/12
- 25 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
