ak4644 AKM Semiconductor, Inc., ak4644 Datasheet - Page 86

• Manufacturer Part Number: ak4644
• Description: Stereo Codec With Mic/hp/rcv-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
4. EXT Slave Mode
MS0477-E-01
Power Supply
(Addr:00H, D6)
PMVCM bit
<Example>
LRCK pin
BICK pin
MCKI pin
PDN pin
(1) After Power Up: PDN pin “L”
(2) DIF1-0 and FS1-0 bits should be set during this period.
(3) Power Up VCOM: PMVCM bit = “0”
(4) Normal operation starts after the MCKI, LRCK and BICK are supplied.
“L” time of 150ns or more is needed to reset the AK4644.
VCOM should first be powered up before the other block operates.
(1)
(2)
(3)
(4)
(4)
Figure 77. Clock Set Up Sequence (4)
“H”
Input
Input
“1”
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(1) Power Supply & PDN pin = “L”
Example:
Input MCKI frequency: 256fs
Sampling Frequency: 44.1kHz
MCKO: Disable
Audio I/F Format: MSB justified (ADC and DAC)
MCKI, BICK and LRCK input
(2) Addr:04H, Data:02H
(3) Addr:00H, Data:40H
Addr:05H, Data:00H
“H”
[AK4644]
2006/10