AK4646EZ Datasheet, PDF (12/78 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/SPK-AMP

[AK4646EZ]
SWITCHING CHARACTERISTICS
(Ta = 25°C; AVDD =2.2 ∼ 3.6V, DVDD =1.6 ∼ 3.6V, SVDD =2.2 ∼ 4.0V; C_L=20pF)
Parameter
Symbol
min
typ
PLL Master Mode (PLL Reference Clock = MCKI pin)
MCKI Input Timing
Frequency
fCLK
12
-
Pulse Width Low
tCLKL 0.4/fCLK
-
Pulse Width High
tCLKH 0.4/fCLK
-
MCKO Output Timing
Frequency
fMCK
0.2352
-
Duty Cycle
Except 256fs at fs=32kHz, 29.4kHz
dMCK
40
50
256fs at fs=32kHz, 29.4kHz
dMCK
-
33
LRCK Output Timing
Frequency
fs
7.35
-
Duty Cycle
Duty
-
50
BICK Output Timing
Period
BCKO bit = “0”
tBCK
-
1/(32fs)
BCKO bit = “1”
tBCK
-
1/(64fs)
Duty Cycle
dBCK
-
50
PLL Slave Mode (PLL Reference Clock = MCKI pin)
MCKI Input Timing
Frequency
fCLK
12
-
Pulse Width Low
tCLKL 0.4/fCLK
-
Pulse Width High
tCLKH 0.4/fCLK
-
MCKO Output Timing
Frequency
fMCK
0.2352
-
Duty Cycle
Except 256fs at fs=32kHz, 29.4kHz
dMCK
40
50
256fs at fs=32kHz, 29.4kHz
dMCK
-
33
LRCK Input Timing
Frequency
fs
7.35
-
Duty
Duty
45
-
BICK Input Timing
Period
tBCK
1/(64fs)
-
Pulse Width Low
tBCKL 0.4 x tBCK
-
Pulse Width High
tBCKH 0.4 x tBCK
-
max
Units
27
-
-
12.288
60
-
48
-
-
-
-
MHz
ns
ns
MHz
%
%
kHz
%
ns
ns
%
27
-
-
12.288
60
-
48
55
1/(32fs)
-
-
MHz
ns
ns
MHz
%
%
kHz
%
ns
ns
ns
MS0630-E-00
- 12 -
2007/06