AK4645 Datasheet, PDF (13/96 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP-AMP

ASAHI KASEI
[AK4645]
DC CHARACTERISTICS
(Ta=25°C; AVDD, DVDD=2.6 ∼ 3.6V; TVDD=1.6 ∼ 3.6V; HVDD=2.6 ∼ 5.25V)
Parameter
Symbol
min
typ
High-Level Input Voltage 2.2V≤TVDD≤3.6V VIH 70%TVDD
-
1.6V≤TVDD<2.2V VIH 75%TVDD
-
Low-Level Input Voltage
2.2V≤TVDD≤3.6V VIL
-
-
1.6V≤TVDD<2.2V VIL
-
-
High-Level Output Voltage
(Iout=−200µA) VOH TVDD−0.2
-
Low-Level Output Voltage
(Except SDA pin: Iout=200µA) VOL
-
-
(SDA pin: Iout=3mA) VOL
-
-
Input Leakage Current
Iin
-
-
max
-
-
30%TVDD
25%TVDD
-
Units
V
V
V
V
V
0.2
V
0.4
V
±10
µA
SWITCHING CHARACTERISTICS
(Ta=25°C; AVDD, DVDD=2.6 ∼ 3.6V; TVDD=1.6 ∼ 3.6V; HVDD=2.6 ∼ 5.25V; C_L=20pF; unless otherwise specified)
Parameter
Symbol
min
typ
max
Units
PLL Master Mode (PLL Reference Clock = MCKI pin)
MCKI Input Timing
Frequency
fCLK
11.2896
-
27
MHz
Pulse Width Low
tCLKL 0.4/fCLK
-
-
ns
Pulse Width High
tCLKH 0.4/fCLK
-
-
ns
MCKO Output Timing
Frequency
fMCK
0.2352
-
12.288
MHz
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
-
48
kHz
DSP Mode: Pulse Width High
tLRCKH
-
tBCK
-
ns
Except DSP Mode: Duty Cycle
Duty
-
50
-
%
BICK Output Timing
Period
BCKO bit = “0”
tBCK
-
1/(32fs)
-
ns
BCKO bit = “1”
tBCK
-
1/(64fs)
-
ns
Duty Cycle
dBCK
-
50
-
%
PLL Slave Mode (PLL Reference Clock = MCKI pin)
MCKI Input Timing
Frequency
fCLK
11.2896
-
27
MHz
Pulse Width Low
tCLKL 0.4/fCLK
-
-
ns
Pulse Width High
tCLKH 0.4/fCLK
-
-
ns
MCKO Output Timing
Frequency
fMCK
0.2352
-
12.288 MHz
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
DSP Mode: Pulse Width High
fs
7.35
tLRCKH tBCK−60
-
48
kHz
-
1/fs − tBCK ns
Except DSP Mode: Duty Cycle
Duty
45
-
55
%
BICK Input Timing
Period
tBCK
1/(64fs)
-
1/(32fs)
ns
Pulse Width Low
tBCKL 0.4 x tBCK
-
-
ns
Pulse Width High
tBCKH 0.4 x tBCK
-
-
ns
MS0543-E-00
- 13 -
2006/09