ak4644 AKM Semiconductor, Inc., ak4644 Datasheet - Page 13

• Manufacturer Part Number: ak4644
• Description: Stereo Codec With Mic/hp/rcv-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
Parameter
PLL Slave Mode (PLL Reference Clock = LRCK pin)
PLL Slave Mode (PLL Reference Clock = BICK pin)
External Slave Mode
External Master Mode
MS0477-E-01
LRCK Input Timing
BICK Input Timing
LRCK Input Timing
BICK Input Timing
MCKI Input Timing
LRCK Input Timing
BICK Input Timing
MCKI Input Timing
LRCK Output Timing
BICK Output Timing
Frequency
DSP Mode: Pulse Width High
Except DSP Mode: Duty Cycle
Period
Pulse Width Low
Pulse Width High
Frequency
DSP Mode: Pulse Width High
Except DSP Mode: Duty Cycle
Period
Pulse Width Low
Pulse Width High
Frequency
Pulse Width Low
Pulse Width High
Frequency
DSP Mode: Pulse Width High
Except DSP Mode: Duty Cycle
Period
Pulse Width Low
Pulse Width High
Frequency
Pulse Width Low
Pulse Width High
Frequency
DSP Mode: Pulse Width High
Except DSP Mode: Duty Cycle
Period
Duty Cycle
PLL3-0 bits = “0010”
PLL3-0 bits = “0011”
256fs
512fs
1024fs
256fs
512fs
1024fs
256fs
512fs
1024fs
BCKO bit = “0”
BCKO bit = “1”
tLRCKH
tLRCKH
tLRCKH
tLRCKH
Symbol
tBCKH
tBCKH
tBCKH
tBCKL
tBCKL
tCLKL
tCLKH
tBCKL
tCLKL
tCLKH
dBCK
tBCK
tBCK
tBCK
fCLK
fCLK
fCLK
tBCK
fCLK
fCLK
fCLK
tBCK
tBCK
Duty
Duty
Duty
Duty
- 13 -
fs
fs
fs
fs
fs
fs
0.4 x tBCK
0.4 x tBCK
tBCK−60
tBCK−60
0.4/fCLK
0.4/fCLK
tBCK−60
0.4/fCLK
0.4/fCLK
1/(64fs)
1.8816
3.7632
7.5264
1.8816
3.7632
7.5264
312.5
7.35
7.35
7.35
7.35
7.35
7.35
min
130
130
130
130
45
45
45
-
-
-
-
-
-
-
1/(32fs)
1/(64fs)
1/(32fs)
1/(64fs)
tBCK
typ
50
50
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1/fs − tBCK
1/fs − tBCK
1/fs − tBCK
1/(32fs)
12.288
13.312
13.312
12.288
13.312
13.312
max
48
55
48
55
48
26
13
55
48
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[AK4644]
2006/10
Units
MHz
MHz
MHz
MHz
MHz
MHz
kHz
kHz
kHz
kHz
kHz
kHz
ns
%
ns
ns
ns
ns
%
ns
ns
ns
ns
ns
ns
ns
%
ns
ns
ns
ns
ns
ns
%
ns
ns
%