AK4524_12 Datasheet, PDF (18/32 Pages) Asahi Kasei Microsystems – 24Bit 96kHz Audio CODEC

[AK4524]
„ Relationship between Clock Operation and Power-Down
XTALE pin controls the clock outputs. The operation in slave mode is shown Table 8. Table 9 shows the master mode
operation. When a crystal oscillator is used, XTALE pin is set to “H”. XTALE pin should be “L” at external clock mode.
Slave Mode
XTAL mode
XTALE=L
PD =H
PD =L
Inhibit
Inhibit
EXT Clock mode
Normal operation
XTI = MCLK in
XTO = L
CLKO = L
LRCK = Input
BICK = Input
Shut off
XTI = MCLK in
XTO = L
CLKO = L
LRCK = Input
BICK = Input
XTALE=H
PD =H
PD =L
Normal operation
XTAL = Oscillation
CLKO = Output
LRCK = Input
Power down
XTAL = Oscillation
CLKO = Output
LRCK = Input
BICK = Input
BICK = Input
Inhibit
Inhibit
Table 8. Clock operation at slave mode (M/ S = L)
Master Mode
XTAL mode
XTALE=L
PD =H
PD =L
Inhibit
Inhibit
EXT Clock mode
Normal operation
XTI = MCLK in
XTO = L
CLKO = L
LRCK = Output
BICK = Output
Shut off
XTI = MCLK in
XTO = L
CLKO = L
LRCK = H
BICK = L
XTALE=H
PD =H
PD =L
Normal operation Power down
XTAL = Oscillation XTAL = Oscillation
CLKO = Output
LRCK = Output
BICK = Output
CLKO = Output
LRCK = H
BICK = L
Inhibit
Inhibit
Table 9. Clock operation at master mode (M/ S = H)
M0050-E-04
- 18 -
2012/01