AK4137EQ Datasheet, PDF (33/65 Pages) Asahi Kasei Microsystems – 32bit SRC with PCM/DSD conversion

[AK4137]
■ Master Mode
Both OLRCK pin and OBICK pin are output when the AK4137 is in master mode. Master clock is
supplied to the XTI/OMCLK pin. The clock for the XTI/OMCLK pin can be generated by the following
methods.
X’tal Mode
XTI
C
C
XTO
AK4137
Note: Refer to Table A for the capacitor and resistor values of the X’tal oscillator.
Figure 23. X’tal (XTI) Mode
In X’tal mode at 256FSO OMCLK input, FSO ranges from 44.1kHz to 96kHz.
In X’tal mode at 384FSO OMCLK input, FSO ranges from 29.4kHz to 64kHz.
In X’tal mode at 512FSO OMCLK input, FSO ranges from 22.05kHz to 48kHz.
In X’tal mode at 768FSO OMCLK input, FSO ranges from 14.7kHz to 32kHz.
In X’tal mode at 128FSO OMCLK input, FSO ranges from 88.2kHz to 192kHz.
External Clock Mode
XTI
External Clock
XTO
AK4137
The XTO pin goes to DVSS in
external CLK mode.
Figure 24. External Clock (OMCLK) Mode
Rev. 0.2
- 33 -
2014/06