ASAHI KASEI
4. EXT Slave Mode
External MCKI
[AK4644]
(1)
Input
Example
(1)
(1)
Audio I/F Format :MSB justified(ADC & DAC)
Input MCKI frequency:1024fs
External BICK
External LRCK
Input
Input
(1) Stop the external clocks
Figure 86. Clock Stopping Sequence (4)
<Example>
(1) Stop the external MCKI, BICK and LRCK clocks.
5. EXT Master Mode
(1)
External MCKI
Input
Example
Audio I/F Format :MSB justified(ADC & DAC)
Input MCKI frequency:1024fs
BICK
Output
Output
"H" or "L"
"H" or "L"
LRCK
(1) Stop the external MCKI
Figure 87. Clock Stopping Sequence (5)
<Example>
(1) Stop MCKI clock. BICK and LRCK are fixed to “H” or “L”.
Power down
Power supply current can be shut down (typ. 10µA) by stopping clocks and setting PMVCM bit = “0” after all blocks
except for VCOM are powered-down. Power supply current can be also shut down (typ. 10µA) by stopping clocks and
setting PDN pin = “L”. When PDN pin = “L”, the registers are initialized.
MS0477-E-01
2006/10
- 93 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
