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AK4632 Datasheet, PDF (12/70 Pages) Asahi Kasei Microsystems – 16-Bit ΔΣ Mono CODEC with ALC & MIC/SPK/Video-AMP
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ASAHI KASEI
[AK4632]
Parameter
Symbol
min
PLL Slave Mode (PLL Reference Clock: FCK pin) (Figure 7, Figure 8)
FCK: Frequency
fFCK
7.35
DSP Mode: Pulse Width High
tFCKH tBCK-60
Except DSP Mode: Duty Cycle
duty
45
BICK: Period
tBCK 1/64fFCK
Pulse Width Low
tBCKL
240
Pulse Width High
tBCKH
240
PLL Slave Mode (PLL Reference Clock: BICK pin) (Figure 7, Figure 8)
FCK: Frequency
fFCK
7.35
DSP Mode: Pulse width High
tFCKH tBCK-60
Except DSP Mode: Duty Cycle
duty
45
BICK: Period (PLL3-0 = “0001”)
tBCK
-
(PLL3-0 = “0010”)
tBCK
-
(PLL3-0 = “0011”)
tBCK
-
Pulse Width Low
tBCKL 0.4 x tBCK
Pulse Width High
tBCKH 0.4 x tBCK
PLL Slave Mode (PLL Reference Clock: MCKI pin) (Figure 9)
MCKI Input: Frequency
fCLK
11.2896
Pulse Width Low
fCLKL 0.4/fCLK
Pulse Width High
fCLKH 0.4/fCLK
MCKO Output:
Frequency
fMCK
-
Duty Cycle except fs=29.4kHz, 32kHz
dMCK
40
fs=29.4kHz, 32kHz (Note 30)
dMCK
-
FCK: Frequency
fFCK
8
DSP Mode: Pulse width High
tFCKH tBCK-60
Except DSP Mode: Duty Cycle
duty
45
BICK: Period
tBCK 1/64fFCK
Pulse Width Low
tBCKL 0.4 x tBCK
Pulse Width High
tBCKH 0.4 x tBCK
Audio Interface Timing
DSP Mode: (Figure 10,Figure 11)
FCK “↑” to BICK “↑” (Note 31)
FCK “↑” to BICK “↓” (Note 32)
BICK “↑” to FCK “↑” (Note 31)
BICK “↓” to FCK “↑” (Note 32)
BICK “↑” to SDTO (BCKP = “0”)
BICK “↓” to SDTO (BCKP = “1”)
tFCKB
tFCKB
tBFCK
tBFCK
tBSD
tBSD
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
-
-
SDTI Hold Time
tSDH
50
SDTI Setup Time
tSDS
50
Except DSP Mode: (Figure 13)
FCK Edge to BICK “↑” (Note 33)
tFCKB
50
BICK “↑” to FCK Edge (Note 33)
tBFCK
50
FCK to SDTO (MSB) (Except I2S mode)
tFSD
-
BICK “↓” to SDTO
tBSD
-
SDTI Hold Time
tSDH
50
SDTI Setup Time
tSDS
50
typ
8
-
-
-
-
-
8
-
-
1/16fFCK
1/32fFCK
1/64fFCK
-
-
-
-
-
256 x fFCK
50
33
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
max
26
1/fFCK-tBFCK
55
1/16fFCK
-
-
48
1/fFCK-tBFCK
55
-
-
-
-
-
27.0
-
-
-
60
-
48
1/fFCK-tBFCK
55
1/16fFCK
-
-
-
-
-
-
80
80
-
-
-
-
80
80
-
-
Units
kHz
ns
%
ns
ns
ns
kHz
ns
%
ns
ns
ns
ns
ns
MHz
ns
ns
kHz
%
%
kHz
ns
%
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MS0396-E-00
- 12 -
2005/06
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