AK4536 Datasheet, PDF (53/59 Pages) Asahi Kasei Microsystems – 16-Bit Mono CODEC with ALC & MIC/SPK-AMP

ASAHI KASEI
[AK4536]
4. EXT mode (Slave mode)
Power Supply
PDN pin
PMVCM bit
(Addr:00H,D6)
MCKPD bit
(Addr:01H,D2)
PMXTL bit
(Addr:01H,D1)
PMPLL bit
(Addr:01H,D0)
MCKI pin
FCK pin
BICK pin
(1)
(2) (3)
Example
: ^{Audio I/F Format:MSB justified (ADC and DAC)}
Input MCKI frequency: 1024fs
MCKI pin: CMOS Level
Sampling Frequency:8kHz
(1) Power Supply & PDN pin = “L” à “H”
(4)
"L"
"L" or "H"
(2) Addr:04H, Data:02H
Addr:05H, Data:01H
"L"
(5)
(5)
Input
(3) Addr:00H, Data:40H
(4) Addr:01H, Data:00H
Input
MCKI, BICK and FCK input
Figure 37. Clock Set Up Sequence (4)
<Example>
(1)After Power Up, PDN pin “L” à “H”
“L” time (1) of 150ns or more is needed to reset the AK4536.
(2)DIF1-0 and FS1-0 bits should be set during this period.
(3)Power Up VCOM: PMVCM bit = “0” à “1”
VCOM should first be powered up before the other block operates.
(4)Release the pulled-down of the XTI pin: MCKPD bit = “1” à “0”
Power down PLL: PMPLL bit = “0”
When MCKI pin is input by AC coupling: PMXTL bit = “1”
When MCKI pin is input by CMOS Level: PMXTL bit = “0”
(5)After the MCKI, FCK and BICK are supplied, the normal operation of the block which a clock is necessary for
becomes possible
MS0174-E-00
- 53 -
2002/09