ak4671 AKM Semiconductor, Inc., ak4671 Datasheet - Page 100

• Manufacturer Part Number: ak4671
• Description: Stereo Codec With Mic/rcv/hp-amp
• Manufacturer: AKM Semiconductor, Inc.

Others
Mode
11
15
0
1
2
3
4
5
6
7
■
A reference clock of PLLBT is selected among the input clocks to SYNCA, BICKA, SYNCB or BICKB pin. The
required clock to PCM I/F is generated by an internal PLLBT circuit. PLLBT circuit is powered up by PMPCM bit. Input
frequency is selected by PLLBT3-0 bits
pin
B. Whether PCM I/F A or B should be set as slave mode. When PMPCM bit is “0”, SYNCA, BICKA, SYNCB and
BICKB pins are Hi-Z.
during lock time in
76.
Note 65. Mode 1 is available at only FMTA1 bit = “0”.
Note 66. Mode 5 is available at only FMTB1 bit = “0”.
MS0666-E-00
System Clock (PCM I/F)
(Table
PLLBT3
0
0
0
0
0
0
0
0
1
1
77). AK4671 does not support master mode for both PCM I/F A and B nor slave mode for both PCM I/F A and
16bit Linear
8bit A-Law
8bit μ -Law
Mode
PLLBT2
Table
0
0
0
0
1
1
1
1
0
1
Table 78
76, respectively.
PLLBT1
PMPCM bit = “0”
Except for I
0
0
1
1
0
0
1
1
1
1
Table 76. PLLBT Reference Clock (N/A: Not available)
indicates the output data of SDTOA and SDTOB pins in case of PMPCM bit = “0” and
Format
I
2
S
BCKO2 bit
Table 78. SDTOA, SDTOB pins Output Data
L
L
L
Table 79. Output Clock during Lock Time
PLLBT0
(Table
Table 77. BICKA/B Output Frequency
2
0
1
S
Table 79
0
1
0
1
0
1
0
1
1
1
76). BCKO2 bit select the output clock frequency of BICKA or BICKB
Reference Clock
SYNCA, SYNCB
& Before SYNCA/SYNCB Input
indicates the output clock at master mode during lock time in
After PMPCM bit = “0” → “1”
Output Frequency
BICKA/BICKB
SYNCA
Input Pin
SYNCB
BICKA
BICKA
BICKA
BICKB
BICKB
BICKB
BICKA
BICKB
N/A
- 100 -
H
16fs2
32fs2
L
H
H
L
Frequency
16fs2
32fs2
64fs2
16fs2
32fs2
64fs2
48fs2
48fs2
1fs2
1fs2
(default)
BICKA, BICKB
6.8k
6.8k
10k
10k
10k
10k
L
L
10k
10k
10k
10k
VCOCBT pin
R
R, C at
PMPCM bit = “1”
During Locktime
220n
220n
4.7n
4.7n
4.7n
4.7n
4.7n
4.7n
4.7n
4.7n
11010101b
11111111b
C
0000H
Lock Time
260ms
260ms
40ms
40ms
40ms
40ms
40ms
40ms
40ms
40ms
(max)
[AK4671]
2007/10
(default)
Table