AK4117_10 Datasheet, PDF (12/37 Pages) Asahi Kasei Microsystems – Low Power 192kHz Digital Audio Receiver

■ Clock Source
The following circuits are available to feed a clock into the XTI pin of AK4117.
1) X’tal mode
The X’tal with proper value should be connected between XTI and XTO pins.
XTI
[AK4117]
XTO
AK4117
Figure 8. X’tal mode (EXCK= “0”)
Note: External capacitance depends on the crystal oscillator (Typ.10-40pF).
2) External clock mode
EXCK bit should be set to “1” and the proper frequency clock input into the XTI pin. XTO pin should be left open.
XTI
External Clock
XTO
AK4117
Figure 9. External clock mode (EXCK= “1”)
3) OFF mode
CM1-0 bits should be set to “00” and XTL1-0 bits to “11” respectively. XTI and XTO pins should be left open. The
XTI pin can also be connected to ground externally.
XTI
XTO
AK4117
Figure 10. OFF mode (CM1-0= “00”, XTL1-0= “11”)
MS0157-E-04
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2010/08