AK4635 AKM [Asahi Kasei Microsystems], AK4635 Datasheet - Page 15
AK4635
Manufacturer Part Number
AK4635
Description
16-Bit Mono CODEC with ALC & MIC/SPK/Video-AMP
Manufacturer
AKM [Asahi Kasei Microsystems]
Datasheet
1.AK4635.pdf
(81 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AK4635ECB-L
Manufacturer:
AKM
Quantity:
20 000
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Parameter
EXT Master Mode
MCKI Frequency: 256fs
FCK Frequency (MCKI = 256fs)
BICK: Period (BCKO1-0 bit = “00”)
Audio Interface Timing
Note 28. Duty Cycle = (the width of “L”)/(the period of clock)*100
Note 29. MSBS, BCKP bits = “00” or “11”
Note 30. MSBS, BCKP bits = “01” or “10”
Note 31. BICK rising edge must not occur at the same time as FCK edge.
Rev. 0.6
DSP Mode:
Except DSP Mode:
Duty Cycle
SDTI Hold Time
SDTI Setup Time
FCK “↑” to BICK “↑”
FCK “↑” to BICK “↓”
BICK “↑” to SDTO (BCKP bit = “0”)
BICK “↓” to SDTO (BCKP bit = “1”)
SDTI Hold Time
SDTI Setup Time
BICK “↓” to FCK Edge
FCK to SDTO (MSB)
BICK “↓” to SDTO
Pulse Width Low
Pulse Width High
Duty Cycle
(BCKO1-0 bit = “01”)
(BCKO1-0 bit = “10”)
(MCKI = 512fs)
(MCKI = 1024fs)
(Figure
512fs
1024fs
(Except I
(Figure
(Figure
7,
Figure
2
6)
S mode)
(Note
(Note
9)
8)
29)
30)
Symbol
tCLKH
tCLKL
tBFCK
dBCK
dFCK
fCLK
fCLK
fCLK
fFCK
fFCK
fFCK
tBCK
tBCK
tBCK
tSDH
tSDH
tDBF
tDBF
tBSD
tBSD
tBSD
tSDS
tFSD
tSDS
- 15 -
0.5 x tBCK−40
0.5 x tBCK−40
0.4/fCLK
0.4/fCLK
1.8816
3.7632
7.5264
7.35
7.35
7.35
min
−70
−70
−40
−70
−70
50
50
50
50
-
-
-
-
-
0.5 x tBCK
0.5 x tBCK
1/16fFCK
1/32fFCK
1/64fFCK
2.048
4.096
8.192
typ
50
50
8
8
8
-
-
-
-
-
-
-
-
-
-
-
0.5 x tBCK + 40
0.5 x tBCK +40
12.288
13.312
13.312
max
48
26
13
70
70
40
70
70
-
-
-
-
-
-
-
-
-
-
-
[AK4635]
2007/10
Units
MHz
MHz
MHz
kHz
kHz
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
%
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