ak4634 AKM Semiconductor, Inc., ak4634 Datasheet - Page 23

• Manufacturer Part Number: ak4634
• Description: 16-bit Mono Codec With Alc & Mic/spk-amp
• Manufacturer: AKM Semiconductor, Inc.

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There are the following five clock modes to interface with external devices.
Mode
PLL Master Mode
PLL Slave Mode 1
(PLL Reference Clock: MCKI pin)
PLL Slave Mode 2
(PLL Reference Clock: FCK or BICK pin)
EXT Slave Mode
EXT Master Mode
Note 29. 12MHz/13.5MHz/24MHz/27MHz
Rev. 0.5
System Clock
Mode
PLL Master Mode
PLL Slave Mode 1
(PLL Reference Clock: MCKI pin)
PLL Slave Mode 2
(PLL Reference Clock: FCK or BICK pin)
EXT Slave Mode
EXT Master Mode
Table 1. Clock Mode Setting (x: Don’t care)
Table 2. Clock pins state in Clock Mode
MCKO bit
OPERATION OVERVIEW
0
1
0
1
0
0
0
PMPLL bit
- 23 -
256fs Output
256fs Output
MCKO pin
“L” Output
“L” Output
“L” Output
“L” Output
“L” Output
1
1
1
0
0
M/S bit
1
0
0
0
1
Input for PLL
Input for PLL
Master Clock
Master Clock
(Table 1
MCKI pin
(Note
(Note
1024fs
1024fs
256fs/
512fs/
256fs/
512fs/
GND
Input
Input
PLL3-0 bit
29)
29)
Table 4
Table 4
Table 4
and
x
x
Table
16fs/32fs/64fs
16fs/32fs/64fs
BICK pin
32fs/64fs
Output
Output
≥ 16fs
≥ 32fs
2)
Input
Input
Input
Figure 19
Figure 20
Figure 21
Figure 22
Figure 23
Figure 24
Figure
FCK pin
[AK4634]
Output
Output
Input
Input
Input
1fs
1fs
1fs
1fs
1fs
2007/10