AK4951AEN Datasheet, PDF (102/105 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/HP/SPK-AMP

[AK4951A]
4. EXT Master Mode
External MCKI
BICK
(1)
Input
Output
"H" or "L"
Example
:^{Audio I/F Format: I2S Compatible (ADC & DAC)}
Input MCKI frequency: 256fs
(1) Stop the external MCKI
LRCK
Output
"H" or "L"
Figure 73. Clock Stopping Sequence (4)
<Sequence>
(1) Stop an external master clock. BICK and LRCK are fixed to “H” or “L”.
■ Power Down
Power supply current cannot be shut down by stopping clocks and setting PMVCM bit = “0”. Power supply
current can be shut down (typ. 1A) by stopping clocks and setting the PDN pin = “L”. When the PDN pin
= “L”, all registers are initialized.
016001936-E-00
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2016/03