AK5373 Datasheet, PDF (15/53 Pages) Asahi Kasei Microsystems – 24-bit Stereo ADC with USB Interface

[AK5373]
■ Clock Source
16MHz or 24 MHz crystal resonator can be used as the master clock. If the CKM pin is set to “H”, the AK5373 supports
24MHz. If the CKM pin is set to “L”, the AK5373 supports 16MHz. The AK5373 can drive the clock up to three external
loads. The AK5373 generates 48MHz for system clock from 16MHz or 24MHz by system PLL circuit.
CKM pin
X’tal Frequency
L
16.0MHz
H
24.0MHz
Table 1. Reference X’tal frequency
The clock for the MCKI/XTI pin can be generated by the following methods:
1) X’tal (XTE pin = “H”)
MCKI/XTI
CLKO bit
CLKDRV
XTO
AK5373
Note 18. External capacitance depends on the crystal oscillator (Max. 30pF)
Figure 12. X’tal Mode
2) External clock (XTE pin = “L”)
MCKI/XTI
External Clock
CLKO bit
CLKDRV
XTO
AK5373
Note 19. Input clock must not exceed DVDD.
Figure 13. External clock mode
MS1202-E-00
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2010/06