AK4953A Datasheet, PDF (15/96 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/HP/SPK-AMP

[AK4953A]
SWITCHING CHARACTERISTICS
(Ta =25°C; AVDD=2.85 ~ 3.5V, DVDD =1.6 ∼ 2.0V, TVDD=DVDD ~ 3.5V, SVDD=0.9 ∼ 5.5V; C_L=20pF)
Parameter
Symbol
min
typ
max
PLL Master Mode (PLL Reference Clock = MCKI pin)
MCKI Input Timing
Frequency
fCLK
11.2896
-
27
Pulse Width Low
tCLKL 0.4/fCLK
-
-
Pulse Width High
tCLKH 0.4/fCLK
-
-
MCKO Output Timing
Frequency
fMCK
0.2352
-
24.576
Duty Cycle
Except 256fs at fs=32kHz, 29.4kHz
dMCK
40
50
60
256fs at fs=32kHz, 29.4kHz
dMCK
-
33
-
LRCK Output Timing
Frequency
fs
7.35
-
96
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
11.2896
-
27
Pulse Width Low
tCLKL 0.4/fCLK
-
-
Pulse Width High
tCLKH 0.4/fCLK
-
-
MCKO Output Timing
Frequency
fMCK
0.2352
-
24.576
Duty Cycle
Except 256fs at fs=32kHz, 29.4kHz
dMCK
40
50
60
256fs at fs=32kHz, 29.4kHz
dMCK
-
33
-
LRCK Input Timing
Frequency
fs
7.35
-
96
Duty
Duty
45
-
55
BICK Input Timing
Period
tBCK
1/(64fs)
-
1/(32fs)
Pulse Width Low
tBCKL 0.4 x tBCK
-
-
Pulse Width High
tBCKH 0.4 x tBCK
-
-
Units
MHz
ns
ns
MHz
%
%
kHz
%
ns
ns
%
MHz
ns
ns
MHz
%
%
kHz
%
ns
ns
ns
MS1252-E-00
- 15 -
2010/10