AK4632 Datasheet, PDF (60/70 Pages) Asahi Kasei Microsystems – 16-Bit ΔΣ Mono CODEC with ALC & MIC/SPK/Video-AMP

ASAHI KASEI
[AK4632]
4. EXT Slave Mode
Power Supply
PDN pin
PMVCM bit
(Addr:00H, D6)
MCKPD bit
(Addr:01H, D2)
PMPLL bit
(Addr:01H, D0)
MCKI pin
FCK pin
BICK pin
(1)
(2) (3)
(4)
"L"
(5)
(5)
Input
Input
Example
Audio I/F Format:MSB justified (ADC and DAC)
Input MCKI frequency: 1024fs
Sampling Frequency:8kHz
MCKO: Disable
(1) Power Supply & PDN pin = “L” Æ “H”
(2) Addr:04H, Data:02H
Addr:05H, Data:01H
(3) Addr:00H, Data:40H
(4) Addr:01H, Data:00H
MCKI, BICK and FCK input
Figure 49. Clock Set Up Sequence (4)
<Example>
(1)After Power Up: PDN pin “L” → “H”
“L” time (1) of 150ns or more is needed to reset the AK4632.
(2)DIF1-0 and FS1-0 bits should be set during this period.
(3)Power Up VCOM: PMVCM bit = “0” → “1”
VCOM should first be powered up before the other block operates.
(4)Release the pull-down resistor of the MCKI pin: MCKPD bit = “1” → “0”
Power down PLL: PMPLL bit = “0”
(5)Normal operation starts after the MCKI, FCK and BICK are supplied.
MS0396-E-00
- 60 -
2005/06