AK4753 Datasheet, PDF (10/85 Pages) Asahi Kasei Microsystems – 2-in, 4-out CODEC with DSP Functions

CONFIDENTIAL
[AK4753]
SWITCHING CHARACTERISTICS
(Ta=-30 ~ 85°C, AVDD= DVDD= 3.0V ~ 3.6V, C_L=20pF; unless otherwise specified)
Parameter
Symbol
min
typ
Crystal Resonator
Frequency
fXTAL 11.2896
-
PLL Master Mode (PLL Reference Clock = XTI/MCKI pin)
MCKI Input Timing
Frequency
fCLK
11.2896
-
Pulse Width Low
tCLKL 0.4/fCLK
-
Pulse Width High
tCLKH 0.4/fCLK
-
AC Pulse Width
tACW
18.5
-
LRCK Output Timing
Frequency
fs
7.35
-
DSP Mode: Pulse Width High
tLRCKH
-
tBCK
Except DSP Mode: 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 = LRCK pin)
LRCK Input Timing
Frequency
DSP Mode: Pulse Width High
fs
7.35
-
tLRCKH tBCK−60
-
Except DSP Mode: Duty Cycle
Duty
45
-
BICK Input Timing
Period
tBCK
1/(64fs)
-
Pulse Width Low
tBCKL
130
-
Pulse Width High
tBCKH
130
-
PLL Slave Mode (PLL Reference Clock = BICK pin)
LRCK Input Timing
Frequency
fs
7.35
-
DSP Mode: Pulse Width High
tLRCKH tBCK−60
-
Except DSP Mode: Duty Cycle
Duty
45
-
BICK Input Timing
Period
PLL3-0 bits = “0010”
tBCK
-
1/(32fs)
PLL3-0 bits = “0011”
tBCK
-
1/(64fs)
Pulse Width Low
tBCKL 0.4 x tBCK
-
Pulse Width High
tBCKH 0.4 x tBCK
-
max
12.288
Units
MHz
24.576
-
-
-
48
-
-
-
-
-
MHz
ns
ns
ns
kHz
ns
%
ns
ns
%
48
kHz
1/fs − tBCK ns
55
%
1/(32fs)
ns
-
ns
-
ns
48
kHz
1/fs − tBCK ns
55
%
-
ns
-
ns
-
ns
-
ns
MS1311-E-00
- 10 -
2011/07