AK4647VN AKM [Asahi Kasei Microsystems], AK4647VN Datasheet - Page 70
AK4647VN
Manufacturer Part Number
AK4647VN
Description
Stereo CODEC with MIC/HP-AMP
Manufacturer
AKM [Asahi Kasei Microsystems]
Datasheet
1.AK4647VN.pdf
(72 pages)
- Current page: 70 of 72
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ASAHI KASEI
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.
MS0566-E-00
External LRCK
External MCKI
External MCKI
External BICK
3. PLL Slave (MCKI pin)
4. EXT Slave Mode
(Addr:01H, D0)
(Addr:01H, D1)
Power down
<Example>
<Example>
PMPLL bit
MCKO bit
(1) Power down PLL: PMPLL bit = “1” → “0”
(2) Stop the external master clock.
(1) Stop the external MCKI, BICK and LRCK clocks.
Stop MCKO output: MCKO bit = “1” → “0”
Input
Input
Input
Input
(1)
(1)
(1)
(1)
(2)
(1)
Figure 56. Clock Stopping Sequence (3)
Figure 57. Clock Stopping Sequence (4)
- 70 -
Example
Example
Input MCKI frequency:1024fs
Audio I/F Format: MSB justified (ADC & DAC)
PLL Reference clock: MCKI
BICK frequency: 64fs
Audio I/F Format :MSB justified(ADC & DAC)
(2) Stop the external clocks
(1) Stop the external clocks
(1) Addr:01H, Data:00H
[AK4647]
2006/11
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