AK4635 AKM [Asahi Kasei Microsystems], AK4635 Datasheet - Page 13

• Manufacturer Part Number: AK4635
• Description: 16-Bit Mono CODEC with ALC & MIC/SPK/Video-AMP
• Manufacturer: AKM [Asahi Kasei Microsystems]

PLL Slave Mode (PLL Reference Clock: FCK pin)
FCK: Frequency
BICK: Period
PLL Slave Mode (PLL Reference Clock: BICK pin)
FCK: Frequency
BICK: Period (PLL3-0 bit = “0001”)
PLL Slave Mode (PLL Reference Clock: MCKI pin)
MCKI Input: Frequency
MCKO Output:
FCK: Frequency
BICK: Period
Audio Interface Timing
Rev. 0.6
Parameter
Frequency
Duty Cycle except fs=29.4kHz, 32kHz
DSP Mode:
Except DSP Mode:
DSP Mode: Pulse Width High
Except DSP Mode: Duty Cycle
DSP Mode: Pulse width High
Except DSP Mode: Duty Cycle
DSP Mode: Pulse width High
Except DSP Mode: Duty Cycle
Pulse Width Low
Pulse Width High
FCK Edge to BICK “↑”
FCK to SDTO (MSB) (Except I
SDTI Hold Time
SDTI Setup Time
Pulse Width Low
Pulse Width High
Pulse Width Low
Pulse Width High
FCK “↑” to BICK “↑”
FCK “↑” to BICK “↓”
BICK “↑” to FCK “↑”
BICK “↓” to FCK “↑”
BICK “↑” to SDTO (BCKP bit= “0”)
BICK “↓” to SDTO (BCKP bit= “1”)
SDTI Hold Time
SDTI Setup Time
BICK “↑” to FCK Edge
BICK “↓” to SDTO
fs=29.4kHz, 32kHz
Pulse Width Low
Pulse Width High
(PLL3-0 bit = “0010”)
(PLL3-0 bit = “0011”)
(Figure
(Figure
13,
Figure
(Note
(Note
(Note
(Note
(Note
(Note
(Note
16)
28)
14)
29)
30)
29)
30)
31)
31)
2
S mode)
Symbol
tBCKH
tBCKH
fCLKH
tBCKH
tFCKH
tBCKL
tFCKH
tBCKL
fCLKL
tFCKH
tBCKL
tFCKB
tFCKB
tBFCK
tBFCK
tFCKB
tBFCK
dMCK
dMCK
fMCK
tBCK
tBCK
tBCK
tBCK
fCLK
tBCK
fFCK
fFCK
fFCK
tBSD
tBSD
tSDH
tBSD
tSDH
tSDS
tFSD
tSDS
(Figure
duty
duty
duty
(Figure
(Figure
- 13 -
10,
10,
12)
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
1/64fFCK
1/64fFCK
tBCK−60
tBCK−60
0.4/fCLK
0.4/fCLK
tBCK−60
Figure
11.2896
Figure
7.35
7.35
min
45
45
40
45
50
50
50
50
50
50
8
-
-
-
-
-
-
-
-
-
11)
11)
256 x fFCK
1/16fFCK
1/32fFCK
1/64fFCK
typ
50
33
8
8
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1/fFCK−tBCK
1/fFCK−tBCK
1/fFCK−tBCK
1/16fFCK
1/16fFCK
max
27.0
48
55
48
55
60
48
55
80
80
80
80
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[AK4635]
2007/10
Units
MHz
kHz
kHz
kHz
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
%
%
%
%