[AK4438]
11. Switching Characteristics
(Ta=-40 105C; AVDD=3.0 3.6V, TVDD=1.7 3.6V; CL=20pF, unless otherwise specified.)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Master Clock Timing
External Clock
256fsn:
fCLK
2.048
32
32
3.072
22
22
4.096
16
16
6.144
11
11
12.288
18.432
24.576
36.864
MHz
ns
ns
MHz
ns
ns
MHz
ns
ns
MHz
ns
ns
Pulse Width Low
Pulse Width High
384fsn:
tCLKL
tCLKH
fCLK
tCLKL
tCLKH
fCLK
tCLKL
tCLKH
fCLK
tCLKL
tCLKH
Pulse Width Low
Pulse Width High
512fsn, 256fsd, 128fsq, 64fso, 32fsh:
Pulse Width Low
Pulse Width High
768fsn, 384fsd, 192fsq, 96fso, 48fsh:
Pulse Width Low
Pulse Width High
LRCK Timing (Slave mode)
Stereo mode
(TDM1-0 bits = “00”)
Normal Speed Mode
Double Speed Mode
Quad Speed Mode
Oct speed mode
fsn
fsd
fsq
fso
fsh
Duty
8
48
96
48
96
192
kHz
kHz
kHz
kHz
kHz
%
384
768
Hex speed mode
Duty Cycle
45
55
TDM128 mode
(TDM1-0 bits = “01”)
LRCK frequency
fsn
fsd
fsq
tLRH
tLRL
8
48
96
48
96
192
kHz
kHz
kHz
ns
“H” time
“L” time
1/128fs
1/128fs
ns
TDM256 mode
(TDM1-0 bits = “10”)
LRCK frequency
fsn
fsd
tLRH
tLRL
8
48
1/256fs
1/256fs
48
96
kHz
kHz
ns
“H” time
“L” time
ns
TDM512 mode
(TDM1-0 bits = “11”)
LRCK frequency
“H” time
fsn
tLRH
tLRL
8
48
kHz
ns
ns
1/512fs
1/512fs
“L” time
016001925-E-00
2016/03
- 14 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
