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AK4456 Datasheet, PDF (18/84 Pages) Asahi Kasei Microsystems – 115dB 768kHz Advanced 32-bit DAC | |||
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[AK4456]
â Switching Characteristics
(Ta=-40 ï¾ 105ï°C; AVDD=3.0 ï¾ 5.5V, TVDD=1.7 ï¾ 3.6V, CL=20pF)
Parameter
Symbol Min.
Typ.
Master Clock Timing
Frequency
Duty Cycle
Minimum Pulse Width
fCLK
dCLK
tCLKH
tCLKL
2.048
40
9.155
9.155
LRCK Frequency
(Note 24)
Normal Mode (TDM1-0 bits = â00â)
Normal Speed Mode
Double Speed Mode
Quad Speed Mode
Oct speed mode
Hex speed mode
Duty Cycle
fsn
8
fsd
54
fsq
108
fso
384
fsh
768
Duty
45
TDM128 mode (TDM1-0 bits = â01â)
Normal Speed Mode
Double Speed Mode
Quad Speed Mode
High time
Low time
fsn
fsd
fsq
tLRH
tLRL
8
54
108
1/128fs
1/128fs
TDM256 mode (TDM1-0 bits = â10â)
Normal Speed Mode High time
Double Speed Mode
High time
Low time
fsn
fsd
tLRH
tLRL
8
54
1/256fs
1/256fs
TDM512 mode (TDM1-0 bits = â11â)
Normal Speed Mode
High time
Low time
fsn
tLRH
tLRL
8
1/512fs
1/512fs
PCM Audio Interface Timing
Normal Mode (TDM1-0 bits = â00â)
BICK Period
Normal Speed Mode
Double Speed Mode
Quad Speed Mode
Oct speed mode
Hex speed mode
BICK Pulse Width Low
BICK Pulse Width High
BICK âïâ to LRCK Edge (Note 25)
LRCK Edge to BICK âïâ (Note 25)
SDTI1/2/3 Hold Time
SDTI1/2/3 Setup Time
tBCK
tBCK
tBCK
tBCK
tBCK
tBCKL
tBCKH
tBLR
tLRB
tSDH
tSDS
1/256fsn
1/128fsd
1/64fsq
1/64fso
1/64fsh
9
9
5
5
5
5
Max.
49.152
60
54
108
216
55
54
108
216
54
108
54
Unit
MHz
%
ns
ns
kHz
kHz
kHz
kHz
kHz
%
kHz
kHz
kHz
nsec
ns
kHz
kHz
nsec
nsec
kHz
nsec
nsec
nsec
nsec
nsec
nsec
nsec
nsec
nsec
nsec
nsec
nsec
nsec
015006886-E-00
- 18 -
2015/06
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