AK4632 Datasheet, PDF (13/70 Pages) Asahi Kasei Microsystems – 16-Bit ΔΣ Mono CODEC with ALC & MIC/SPK/Video-AMP

ASAHI KASEI
Parameter
EXT Slave Mode (Figure 12)
MCKI Frequency: 256fs
512fs
1024fs
Pulse Width Low
Pulse Width High
FCK Frequency (MCKI = 256fs)
(MCKI = 512fs)
(MCKI = 1024fs)
Duty Cycle
BICK Period
BICK Pulse Width Low
Pulse Width High
Audio Interface Timing (Figure 13)
FCK Edge to BICK “↑“ (Note 33)
BICK “↑“ to FCK Edge (Note 33)
FCK to SDTO (MSB) (Except I²S mode)
BICK “↓“ to SDTO
SDTI Hold Time
SDTI Setup Time
Symbol
min
fCLK
fCLK
fCLK
tCLKL
tCLKH
fFCK
fFCK
fFCK
duty
tBCK
tBCKL
tBCKH
1.8816
3.7632
7.5264
0.4/fCLK
0.4/fCLK
7.35
7.35
7.35
45
312.5
130
130
tFCKB
50
tBFCK
50
tFSD
-
tBSD
-
tSDH
50
tSDS
50
Note 30. Duty Cycle = (the width of “L” ) / (the period of clock) × 100
Note 31. MSBS, BCKP bits = “00” or “11”
Note 32. MSBS, BCKP bits = “01” or “10”
Note 33. BICK rising edge must not occur at the same time as FCK edge.
typ
2.048
4.096
8.192
-
-
8
8
8
-
-
-
-
-
-
-
-
-
-
Parameter
Symbol
min
Control Interface Timing:
CCLK Period
tCCK
200
CCLK Pulse Width Low
tCCKL
80
Pulse Width High
tCCKH
80
CDTI Setup Time
tCDS
40
CDTI Hold Time
CSN “H” Time
CSN “↓“ to CCLK “↑“
CCLK “↑“ to CSN “↑“
tCDH
40
tCSW
150
tCSS
150
tCSH
50
Reset Timing
PDN Pulse Width
(Note 34)
tPD
150
PMADC “↑“ to SDTO valid (Note 35)
tPDV
-
Note 34. The AK4632 can be reset by the PDN pin = “L”
Note 35. This is the count of FCK “↑“ from the PMADC = “1”.
typ
-
-
-
-
-
-
-
-
-
1059
[AK4632]
Max
12.288
13.312
13.312
-
-
48
26
13
55
-
-
-
-
-
80
80
-
-
Units
MHz
MHz
MHz
ns
ns
kHz
kHz
%
ns
ns
ns
ns
ns
ns
ns
ns
ns
max
Units
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
1/fs
MS0396-E-00
- 13 -
2005/06