データシート

ASAHI KASEI
[AK4556]
AK4556
3V 192kHz 24Bit ∆Σ CODEC
AK4556
24bit 192kHz
S/N
ADC DAC
A/D, D/A
103dB,106dB
216kHz
(SCF)
S/N
AK4556
20pin TSSOP
†
ADC
- DC-offset
HPF
(fc = 1Hz @ fs=48kHz)
- S/(N+D): 91dB@VA=3.0V
- Dynamic Range, S/N: 103dB@VA=3.0V
†
DAC
(32kHz, 44.1kHz, 48kHz)
- S/(N+D): 90dB@VA=3.0V
- Dynamic Range, S/N: 106dB@VA=3.0V
†
I/F
: MSB First, 2’s Complement
- ADC: 24bit MSB justified or I2S compatible
- DAC: 24bit MSB justified, 24bit LSB justified or I2S compatible
†
: ADC = 2.1Vpp @ VA=3.0V
DAC = 2.1Vpp @ VA=3.0V
†
/
†
:
- Normal Speed: 8kHz to 54kHz
(256fs or 512fs)
8kHz to 48kHz
(384fs or 768fs)
- Double Speed: 54kHz to 108kHz
(256fs)
48kHz to 96kHz
(384fs)
- Quad Speed: 108kHz to 216kHz (128fs)
96kHz to 192kHz 192fs)
†
:
: 256fs, 384fs, 512fs or 768fs (Normal Speed)
256fs or 384fs
(Double Speed)
128fs or 192fs
(Quad Speed)
: 256fs or 512fs
(Normal Speed)
256fs
(Double Speed)
128fs
(Quad Speed)
†
: 2.4 to 3.6V (Normal Speed, Double Speed)
2.7 to 3.6V (Quad Speed)
†
: 27.5mA
† Ta = -40 to 85°C
†
: 20pin TSSOP
† AK4552
MS0559-J-00
2006/11
-1-
ASAHI KASEI
[AK4556]
VA
LIN
RIN
VCOM
VSS
VD
PDN
∆Σ
Modulator
Decimation
Filter
∆Σ
Modulator
Decimation
Filter
Clock
Divider
MCLK
LRCK
BCLK
Serial I/O
Interface
Common Voltage
SDTO
SDTI
CKS3
LOUT
LPF
∆Σ
Modulator
LPF
∆Σ
Modulator
CKS2
8X
CKS1
Interpolator
CKS0
ROUT
8X
DEM0
Interpolator
DEM1
Figure 1. Block Diagram
„ AK4552
1.
Function
fs (max)
HFP Cut-off
HPF Disable
ADC
Input Level
Input Resistance
Init Cycle
S/(N+D)
DR, S/N
DF
SA
SB
GD
DAC
Output Level
Road Resistance
S/(N+D)
DR, S/N
DF
SA
GD
MCLK (Slave)
Monitor Mode
M/S mode
Audio I/F
ADC
DAC
Idd (Vdd=3V)
VDD
Package
AK4552
100kHz
3.7Hz @ fs = 48kHz
No
AK4556
216kHz
1Hz @ fs = 48kHz
Yes
0.617 x VA
34kΩ @ fs = 44.1kHz, 24kΩ @ fs = 96kHz
2081/fs
89dB
97dB
65dB
29.4kHz
17/fs
0.7 x VA
8kΩ@ fs = 48kHz, 96kHz, 192kHz
4134/fs @ Normal Speed, Slave mode
91dB
103dB
68dB
28kHz
18/fs
0.583 x VA
10kΩ
88dB
100dB
43dB
15.4/fs
256/384/512/768fs @ Normal Speed
256/384fs @ Double Speed
128/192fs @ Double Speed Monitor
64/96/128/192fs @ Quad Speed Monitor
Yes (Double / Quad)
Slave
24bit MSB justified
24bit LSB justified
14mA
2.4V to 4.0V
0.7 x VA
5kΩ
90dB
106dB
54dB
21/fs
256/384/512/768fs @ Normal Speed
16TSSOP
(5.0mm x 6.4mm, 0.65mm Pitch)
MS0559-J-00
256/384fs @ Double Speed
128/192fs @ Quad Speed
No
Master / Slave
24bit MSB justified / I2S
24bit MSB justified /24bit LSB justified / I2S
27.5mA
2.4V to 3.6V (Normal/Double Speed)
2.7V to 3.6V (Quad Speed)
20TSSOP
(6.5mm x 6.4mm, 0.65mm Pitch)
2006/11
-2-
ASAHI KASEI
[AK4556]
2.
RIN
1
20
ROUT
LIN
2
19
LOUT
VSS
3
18
VCOM
VA
4
17
PDN
VD
5
16
BCLK
DEM0
6
15
MCLK
DEM1
7
14
LRCK
SDTO
8
13
SDTI
CKS0
9
12
CKS3
CSK1
10
11
CSK2
AK4552
Top
View
MS0559-J-00
AK4556
2006/11
-3-
ASAHI KASEI
[AK4556]
„
AK4556VT
AKD4556
-40 ∼ +85°C
AK4556
20pin TSSOP (0.65mm pitch)
„
RIN
1
20
ROUT
LIN
2
19
LOUT
VSS
3
18
VCOM
VA
4
17
PDN
VD
5
16
BCLK
DEM0
6
15
MCLK
DEM1
7
14
LRCK
SDTO
8
13
SDTI
CKS0
9
12
CKS3
CSK1
10
11
CSK2
Top
View
MS0559-J-00
2006/11
-4-
ASAHI KASEI
No.
[AK4556]
I/O
1
2
3
4
5
6
7
RIN
LIN
VSS
VA
VD
DEM0
DEM1
I
I
I
I
8
SDTO
O
9
10
11
12
13
CKS0
CSK1
CSK2
CSK3
SDTI
I
I
I
I
I
14
LRCK
I/O
15
MCLK
I
16
BCLK
I/O
17
PDN
I
18
VCOM
O
19
LOUT
O
20
ROUT
O
Note:
Rch Analog Input Pin
Lch Analog Input Pin
Ground Pin
Analog Power Supply Pin
Digital Power Supply Pin
De-emphasis Control Pin
De-emphasis Control Pin
Audio Serial Data Output Pin
When PDN pin is “L”, SDTO pin outputs “L”.
Mode Setting Pin #0
Mode Setting Pin #1
Mode Setting Pin #2
Mode Setting Pin #3
Audio Serial Data Input Pin
Input/Output Channel Clock Pin
When PDN pin is “L”, LRCK outputs “L” in master mode.
Master Clock Input Pin
Audio Serial Data Clock Pin
When PDN pin is “L”, BCLK outputs “L” in master mode.
Power-Down & Reset Mode Pin
“L”: Power-down and Reset, “H”: Normal operation
The AK4556 should be reset once by bringing PDN pin = “L”.
Common Voltage Output Pin, 0.5 x VA
Lch Analog Output Pin
When PDN pin is “L”, LOUT pin becomes Hi-Z.
Rch Analog Output Pin
When PDN pin is “L”, ROUT pin becomes Hi-Z.
(LIN, RIN)
„
Analog Input
Analog Output
LIN, RIN
LOUT, ROUT
MS0559-J-00
2006/11
-5-
ASAHI KASEI
[AK4556]
(VSS=0V; Note 1)
Parameter
Power Supplies
Analog
Digital
Input Current (Any Pin Except Supplies)
Analog Input Voltage (LIN, RIN pin)
Digital Input Voltage (Note 2)
Ambient Temperature (power applied)
Storage Temperature
Symbol
VA
VD
IIN
VINA
VIND
Ta
Tstg
min
-0.3
-0.3
-0.3
-0.3
-40
-65
max
4.6
4.6
±10
VA+0.3
VD+0.3
85
150
Units
V
V
mA
V
V
°C
°C
Note 1.
Note 2. DEM1, DEM0, CKS3, CKS2, CKS1, CKS0, SDTI, LRCK, BCLK, MCLK, PDN pin
:
(Normal/Double Speed)
(VSS=0V; Note 1)
Parameter
Power Supplies (Note 3)
Analog
Digital
Difference
Symbol
VA
VD
VD - VA
min
2.4
2.4
-
typ
3.0
3.0
-
max
3.6
3.6
0.3
Units
V
V
V
typ
3.0
3.0
-
max
3.6
3.6
0.3
Units
V
V
V
(Quad Speed)
(VSS=0V; Note 1)
Parameter
Power Supplies (Note 3)
Note 1.
Note 3. VA
Analog
Digital
Difference
Symbol
VA
VD
VD - VA
min
2.7
2.7
-
VD
:
MS0559-J-00
2006/11
-6-
ASAHI KASEI
[AK4556]
(Ta=25°C; VA=VD=3.0V; VSS=0V; fs=48kHz, 96kHz, 192kHz; Signal Frequency=1kHz; BCLK=64fs; Data=24bit
Measurement frequency=20Hz ∼ 20kHz at fs=48kHz, 40Hz ∼ 40kHz at fs=96kHz, 40Hz ∼ 40kHz at fs=192kHz; unless
otherwise specified)
Parameter
min
typ
max
Units
ADC Analog Input Characteristics:
Resolution
24
Bits
Input Voltage
(Note 4)
1.9
2.1
2.3
Vpp
S/(N+D)
fs=48kHz
−1dBFS
82
91
dB
BW=20kHz
−60dBFS
40
dB
fs=96kHz
−1dBFS
80
90
dB
BW=40kHz
−60dBFS
37
dB
fs=192kHz
−1dBFS
90
dB
BW=40kHz
−60dBFS
37
dB
DR
(−60dBFS with A-weighted)
95
103
dB
S/N
(A-weighted)
95
103
dB
Input Resistance
6
8
kΩ
Interchannel Isolation
90
110
dB
Interchannel Gain Mismatch
0.1
0.5
dB
Gain Drift
100
ppm/°C
Power Supply Rejection
(Note 8)
50
dB
DAC Analog Output Characteristics:
Resolution
24
Bits
Output Voltage
(Note 5)
1.9
2.1
2.3
Vpp
S/(N+D)
fs=48kHz
0dBFS
80
90
dB
BW=20kHz
−60dBFS
43
dB
fs=96kHz
0dBFS
78
88
dB
BW=40kHz
−60dBFS
40
dB
fs=192kHz
0dBFS
88
dB
BW=40kHz
−60dBFS
40
dB
DR
(−60dBFS with A-weighted)
98
106
dB
S/N
(A-weighted)
98
106
dB
Load Capacitance
(Note 6)
30
pF
Load Resistance
(Note 7)
5
kΩ
Interchannel Isolation
90
110
dB
Interchannel Gain Mismatch
0.1
0.5
dB
Gain Drift
100
ppm/°C
Power Supply Rejection
(Note 8)
50
dB
Note 4.
0dB
VA
0dB
VA
Vin = 0.7 x VA (Vpp).
Note 5.
Vout = 0.7 x VA (Vpp).
Note 6. LOUT/ROUT
Note 7. AC
Note 8. VCOM pin
VSS pin
220Ω
2.2µF
0.1µF
VA, VD
MS0559-J-00
400pF
1kHz, 50mVpp
2006/11
-7-
ASAHI KASEI
[AK4556]
Parameter
min
typ
max
Units
-
19.5
8
11
14
29
12
17
21
mA
mA
mA
mA
Power Supplies
Power Supply Current
Normal Operation (PDN pin = “H”)
VA
VD
fs=48kHz
(Note 9)
fs=96kHz
fs=192kHz
Power down mode (PDN pin = “L”)
VA+VD
Note 9.
15.2mA (typ.) @ fs=192kHz
Note 10.
VD
(Note 10)
10
100
µA
8.3mA (typ.) @ fs=48kHz, 11.6mA (typ.) @ fs=96kHz,
VSS
(fs=48kHz)
(Ta= -40 ∼ +85°C; VA, VD=2.4∼ 3.6V; DEM=OFF)
Parameter
Symbol
ADC Digital Filter (Decimation LPF):
Passband
(Note 11) ±0.1dB
PB
−0.2dB
−3.0dB
Stopband
(Note 11)
SB
Passband Ripple
PR
Stopband Attenuation
SA
Group Delay Distortion
∆GD
Group Delay
(Note 12)
GD
ADC Digital Filter (HPF):
Frequency Response (Note 11) −3dB
FR
−0.1dB
DAC Digital Filter (LPF):
Passband
(Note 11) ±0.06dB
PB
−6.0dB
Stopband
(Note 11)
SB
Passband Ripple
PR
Stopband Attenuation
SA
Group Delay Distortion
∆GD
Group Delay
(Note 12)
GD
DAC Digital Filter + Analog Filter:
Frequency Response (Note 13) 20kHz
FR
MS0559-J-00
min
typ
max
Units
0
28
68
-
20.0
23.0
0
18
18.9
±0.04
-
kHz
kHz
kHz
kHz
dB
dB
µs
1/fs
-
1.0
6.5
-
Hz
Hz
0
26.2
54
-
24.0
0
21
21.8
±0.02
-
kHz
kHz
kHz
dB
dB
µs
1/fs
-
-0.1
-
dB
2006/11
-8-
ASAHI KASEI
[AK4556]
(fs=96kHz)
(Ta= -40 ∼ +85°C; VA, VD=2.4∼ 3.6V; DEM=OFF)
Parameter
Symbol
ADC Digital Filter (Decimation LPF):
Passband
(Note 11) ±0.1dB
PB
−0.2dB
−3.0dB
Stopband
(Note 11)
SB
Passband Ripple
PR
Stopband Attenuation
SA
Group Delay Distortion
∆GD
Group Delay
(Note 12)
GD
ADC Digital Filter (HPF):
Frequency Response (Note 11) −3dB
FR
−0.1dB
DAC Digital Filter (LPF):
Passband
(Note 11) ±0.06dB
PB
−6.0dB
Stopband
(Note 11)
SB
Passband Ripple
PR
Stopband Attenuation
SA
Group Delay Distortion
∆GD
Group Delay
(Note 12)
GD
DAC Digital Filter + Analog Filter:
Frequency Response (Note 13) 40kHz
FR
min
typ
max
Units
0
56
68
-
40.0
46.0
0
18
37.8
±0.04
-
kHz
kHz
kHz
kHz
dB
dB
µs
1/fs
-
2.0
13.0
-
Hz
Hz
0
52.4
54
-
48.0
0
21
43.6
±0.02
-
kHz
kHz
kHz
dB
dB
µs
1/fs
-
-0.3
-
dB
min
Typ
max
Units
0
112
70
-
57.0
90.3
0
18
56.6
±0.02
-
kHz
kHz
kHz
kHz
dB
dB
µs
1/fs
-
4.0
26.0
-
Hz
Hz
0
104.9
54
-
96.0
0
21
87.0
±0.02
-
kHz
kHz
kHz
dB
dB
µs
1/fs
-
-0.3
-
dB
(fs=192kHz)
(Ta= -40 ∼ +85°C; VA, VD=2.7∼ 3.6V; DEM=OFF)
Parameter
Symbol
ADC Digital Filter (Decimation LPF):
Passband
(Note 11) ±0.1dB
PB
−0.2dB
−3.0dB
Stopband
(Note 11)
SB
Passband Ripple
PR
Stopband Attenuation
SA
Group Delay Distortion
∆GD
Group Delay
(Note 12)
GD
ADC Digital Filter (HPF):
Frequency Response (Note 11) −3dB
FR
−0.1dB
DAC Digital Filter (LPF):
Passband
(Note 11) ±0.06dB
PB
−6.0dB
Stopband
(Note 11)
SB
Passband Ripple
PR
Stopband Attenuation
SA
Group Delay Distortion
∆GD
Group Delay
(Note 12)
GD
DAC Digital Filter + Analog Filter:
Frequency Response (Note 13) 40kHz
FR
MS0559-J-00
2006/11
-9-
ASAHI KASEI
Note 11.
ADC
[AK4556]
±0.1dB
fs (
Passband
0.39375 × fs
)
DAC ±0.06dB
fs=48kHz
Passband 0.45412 x fs
Note 12.
24
ADC
DAC
24bit
Note 13. 1kHz
DC
(Ta=-40 ∼ +85°C; VA, VD=2.4 ∼ 3.6V)
Parameter
High-Level Input Voltage
Low-Level Input Voltage
High-Level Output Voltage (Iout = -100µA)
Low-Level Output Voltage
(Iout = 100µA)
Input Leakage Current
Symbol
VIH
VIL
VOH
VOL
Iin
MS0559-J-00
Min
70%VD
VD-0.5
-
typ
-
max
30%VD
0.5
± 10
Units
V
V
V
V
µA
2006/11
- 10 -
ASAHI KASEI
[AK4556]
(Ta=-40 ∼ +85°C; VA, VD=2.4 ∼ 3.6V; CL=20pF)
Parameter
Master Clock Timing (MCLK)
Frequency: 128fs, 256fs, 512fs
192fs, 384fs, 768fs
Pulse Width Low
Pulse Width High
LRCK (VA, VD = 2.4V∼3.6V)
Normal Speed: 256fs, 512fs
Frequency
384fs, 768fs
Double Speed: 256fs
384fs
Duty Cycle Slave mode
Master mode
LRCK (VA, VD = 2.7V∼3.6V)
Frequency
Quad Speed: 128fs
192fs
Duty Cycle Slave mode
Master mode
Audio Interface Timing
Slave mode (VA, VD = 2.4V ∼ 2.7V)
BCLK Period: Normal Speed
Double Speed
BCLK Pulse Width Low
Pulse Width High
LRCK Edge to BCLK “↑”
(Note 14)
BCLK “↑” to LRCK Edge
(Note 14)
2
LRCK to SDTO (MSB) (Except I S mode)
BCLK “↓” to SDTO
SDTI Hold Time
SDTI Setup Time
Slave mode (VA, VD = 2.7V ∼ 3.6V)
BCLK Period: Normal Speed
Double / Quad Speed
BCLK Pulse Width Low
Pulse Width High
LRCK Edge to BCLK “↑”
(Note 14)
BCLK “↑” to LRCK Edge
(Note 14)
LRCK to SDTO (MSB) (Except I2S mode)
BCLK “↓” to SDTO
SDTI Hold Time
SDTI Setup Time
Note 14.
LRCK
BCLK
Symbol
min
typ
max
Units
fCLK
fCLK
tCLKL
tCLKH
2.048
3.072
0.4/fCLK
0.4/fCLK
-
27.648
36.864
-
MHz
MHz
ns
ns
fs
fs
fs
fs
8
8
54
48
45
-
50
54
48
108
96
55
-
kHz
kHz
kHz
kHz
%
%
fs
fs
108
96
45
-
50
216
192
55
-
kHz
kHz
%
%
tBCK
tBCK
tBCKL
tBCKH
tLRB
tBLR
tDLR
tBSD
tSDH
tSDS
1/128fs
1/64fs
60
60
20
20
20
20
-
40
40
-
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
tBCK
tBCK
tBCKL
tBCKH
tLRB
tBLR
tDLR
tBSD
tSDH
tSDS
1/128fs
1/64fs
33
33
20
20
13
13
-
20
20
-
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
“↑”
MS0559-J-00
2006/11
- 11 -
ASAHI KASEI
[AK4556]
(
(Ta=-40 ∼ +85°C; VA, VD=2.4 ∼ 3.6V; CL=20pF)
Parameter
Master mode (VA, VD = 2.4V ∼ 2.7V)
BCLK Frequency
BCLK Duty
BCLK “↓” to LRCK
BCLK “↓” to SDTO
SDTI Hold Time
SDTI Setup Time
Master mode (VA, VD = 2.7V ∼ 3.6V)
BCLK Frequency
BCLK Duty
BCLK “↓” to LRCK
BCLK “↓” to SDTO
SDTI Hold Time
SDTI Setup Time
Symbol
min
typ
max
Units
fBCK
dBCK
tMBLR
tBSD
tSDH
tSDS
−20
−20
20
20
64fs
50
-
40
40
-
Hz
%
ns
ns
ns
ns
fBCK
dBCK
tMBLR
tBSD
tSDH
tSDS
−20
−20
13
13
64fs
50
-
20
20
-
Hz
%
ns
ns
ns
ns
tPW
150
-
-
ns
tPWV
tPWV
tPWV
tPWV
tPWV
tPWV
-
4134
8262
16518
4131
8259
16515
-
1/fs
1/fs
1/fs
1/fs
1/fs
1/fs
Reset Timing
PDN Pulse Width
(Note 15)
PDN “↑” to SDTO valid
(Note 16)
Slave Mode
Noraml Speed
Double Speed
Quad Speed
Master Mode
Normal Speed
Double Speed
Quad Speed
Note 15. AK4556 PDN pin = “L”
Note 16. PDN pin
)
LRCK
“↑”
„
1/fCLK
VIH
VIL
MCLK
tCLKH
tCLKL
1/fs
VIH
VIL
LRCK
tBCK
VIH
VIL
BCLK
tBCKH
tBCKL
Figure 2. Clock Timing
MS0559-J-00
2006/11
- 12 -
ASAHI KASEI
[AK4556]
VIH
VIL
LRCK
tBLR
tLRB
VIH
VIL
BCLK
tDLR
tBSD
SDTO
50%VD
tSDS
tSDH
VIH
VIL
SDTI
Figure 3. Audio Data Input/Output Timing (Slave mode)
LRCK
50%VD
tMBLR
BCLK
50%VD
tBSD
50%VD
SDTO
tSDS
tSDH
VIH
VIL
SDTI
Figure 4. Audio Data Input/Output Timing (Master mode)
tPW
PDN
VIL
tPWV
SDTO
50%VD
Figure 5. Reset Timing
MS0559-J-00
2006/11
- 13 -
ASAHI KASEI
[AK4556]
„
AK4556
MCLK, BCLK, LRCK
Table 1
CKS3-0 pin (Table 3) MCLK
MCLK 192fs, 384fs, 768fs
MCLK
BCLK
LRCK
AK4556
HPF ON/OFF
MCLK
/
(Table 2)
(PDN pin = “H”)
(MCLK, BCLK, LRCK)
(PDN pin = “L”)
(MCLK)
fs
32kHz
44.1kHz
48kHz
96kHz
192kHz
MCLK
128fs
N/A
N/A
N/A
N/A
24.576MHz
192fs
256fs
384fs
512fs
N/A
8.192MHz
12.288MHz
16.384MHz
N/A
11.2896MHz
16.9344MHz
22.5792MHz
N/A
12.288MHz
18.432MHz
24.576MHz
N/A
24.576MHz
36.864MHz
N/A
36.864MHz
N/A
N/A
N/A
Table 1. System Clock Example (N/A: Not Available)
768fs
24.576MHz
33.8688MHz
36.864MHz
N/A
N/A
Mode
Sampling Frequency
MCLK
256fs/512fs
8kHz ≤ fs ≤ 54kHz
Normal Speed
384fs/768fs
8kHz ≤ fs ≤ 48kkHz
256fs
54kHz < fs ≤ 108kHz
Double Speed
384fs
48kHz < fs ≤ 96kHz
128fs
108kHz < fs ≤ 216kHz
Quad Speed
192fs
96kHz < fs ≤ 192kHz
Table 2. Sampling Frequency Range
MS0559-J-00
2006/11
- 14 -
ASAHI KASEI
[AK4556]
Mode
CKS3
pin
CKS2
pin
CKS1
pin
CKS0
pin
HPF
M/S
0 (*)
L
L
L
L
ON
Slave
1
L
L
L
H
ON
Slave
2
L
L
H
L
OFF
Slave
3
L
L
H
H
OFF
Slave
4
L
H
L
L
ON
Slave
5
L
H
L
H
ON
Slave
6
L
H
H
L
OFF
Slave
7
L
H
H
H
OFF
Slave
8
H
L
L
L
ON
Slave
9
H
L
L
H
ON
Slave
10
H
L
H
L
OFF
Slave
11
H
L
H
H
OFF
Slave
12
H
H
L
13
H
H
L
14
H
H
H
15
H
H
H
* AK4552 Compatible mode
L
H
L
H
ON
ON
ON
ON
Master
Master
Master
Master
Audio Interface
Format
(See Table 4)
MCLK
128/192fs (Quad Speed)
256/384fs (Double Speed)
512/768fs (Normal Speed)
256/384/512/768fs
(Normal Speed)
128/192fs (Quad Speed)
256/384fs (Double Speed)
512/768fs (Normal Speed)
256/384/512/768fs
(Normal Speed)
128/192fs (Quad Speed)
256/384fs (Double Speed)
512/768fs (Normal Speed)
256/384/512/768fs
(Normal Speed)
128/192fs (Quad Speed)
256/384fs (Double Speed)
512/768fs (Normal Speed)
256/384/512/768fs
(Normal Speed)
128/192fs (Quad Speed)
256/384fs (Double Speed)
512/768fs (Normal Speed)
256/384/512/768fs
(Normal Speed)
128/192fs (Quad Speed)
256/384fs (Double Speed)
512/768fs (Normal Speed)
256/384/512/768fs
(Normal Speed)
256fs (Double Speed)
512fs (Normal Speed)
128fs (Quad Speed)
256fs (Normal Speed)
LJ/RJ
LJ/RJ
LJ/RJ
LJ/RJ
I2S
I2S
I2S
I2S
LJ
LJ
LJ
LJ
I2S
I2S
I2S
I2S
Table 3. Mode Setting
„
3
complement
LRCK
BCLK
Mode
LJ
I2S
LJ/RJ
CKS3-0 pin (Table 3, Table 4)
SDTO BCLK
MSB first
2’s
SDTI
BCLK
LRCK
fs
2
64fs
SDTO
24bit, MSB justified
24bit, I2S Compatible
24bit, MSB justified
IS
SDTI
LRCK
24bit, MSB justified
H/L
2
24bit, I S Compatible
L/H
24bit, LSB justified
H/L
Table 4. Audio Interface Format
MS0559-J-00
BCLK (Slave)
≥ 48fs
≥ 48fs or 32fs
≥ 48fs
BCLK (Master)
64fs
-
2006/11
- 15 -
ASAHI KASEI
[AK4556]
LRCK
0
1
2
18
19
20
21
22
23
24
25
0
1
2
18
19
20
21
22
23
24
25
0
1
BCLK(64fs)
SDTO(o)
23 22
5
4
3
2
1
0
23 22
5
4
3
2
1
0
SDTI(i)
23 22
5
4
3
2
1
0
Don’t Care 23 22
5
4
3
2
1
0 Don’t Care
23:MSB, 0:LSB
Lch Data
23
Rch Data
Figure 6. Mode LJ Timing
LRCK
0
1
2
3
19
20
21
22
23
24
25
0
1
2
3
19
20
21
22
23
24
25
0
1
BCLK(64fs)
SDTO(o)
23 22
5
4
3
2
1
0
23 22
5
4
3
2
1
0
SDTI(i)
23 22
5
4
3
2
1
0
Don’t Care 23 22
5
4
3
2
1
0 Don’t Care
23:MSB, 0:LSB
Lch Data
Rch Data
2
Figure 7. Mode I S Timing
LRCK
0
1
2
8
9
10
20
21
31
0
1
2
8
9
10
20
21
31
0
1
BCLK(64fs)
SDTO(o)
SDTI(i)
23 22
16 15 14
Don’t Care
23:MSB, 0:LSB
0
23 22
12 11
23 22
1
0
16 15 14
Don’t Care
Lch Data
23 22
0
12 11
23
1
0
Rch Data
Figure 8. Mode LJ/RJ Timing
„
DAC
IIR
3
32kHz, 44.1kHz, 48kHz
DEM0 pin DEM1 pin
Double/Quad Speed Mode
(tc=50/15µs)
OFF
DEM1
DEM0
Mode
0
0
44.1kHz
0
1
OFF
1
0
48kHz
1
1
32kHz
Table 5. De-emphasis filter control
MS0559-J-00
2006/11
- 16 -
ASAHI KASEI
„
[AK4556]
HPF
ADC
DC
20Hz
HPF
-0.12dB
CKS3-0 pin
HPF
fc
fs=48kHz
1.0Hz
fs
HPF
ON/OFF
PDN pin
“L”
(Table 3)
HPF
ON/OFF
DC
„
&
AK4556
ADC
DAC
4134 x LRCK
(@ Normal Speed)
ADC
4131 x LRCK
2’s complement
“0”
(
ADC
SDTO
(@ Normal Speed)
ADC
)
DAC
PDN
(1)
ADC Internal
State
Normal Operation
DAC Internal
State
Normal Operation
Power-down
Init Cycle
Normal Operation
Normal Operation
Power-down
GD
GD
ADC In
(Analog)
ADC Out
(Digital)
“0”data
Idle Noise
DAC In
(Digital)
Idle Noise
“0”data
GD
GD
(2)
DAC Out
(Analog)
Clock In
(2)
(3)
(4)
MCLK,LRCK,BCLK
The clocks may be stopped.
External
Mute
Notes:
(1)
(2) PDN pin
(3)
(4)
Mute ON
(typ.): 4134/fs @ Normal Speed, 8262/fs @ Double Speed, 16518/fs @ Quad Speed
(typ.): 4131/fs @ Normal Speed, 8259/fs @ Double Speed, 16515/fs @ Quad Speed
(“↑↓”)
LOUT/ROUT pin
Hi-Z
LRCK
BCLK
“L”
Figure 9.
MS0559-J-00
2006/11
- 17 -
ASAHI KASEI
[AK4556]
„
PDN pin
Mode I2S
PDN pin
LRCK
“H”
“L”
MCLK
PDN pin
LRCK
Mode LJ, Mode LJ/RJ
BCLK
LRCK
“H”
BCLK
MCLK
MS0559-J-00
2006/11
- 18 -
ASAHI KASEI
[AK4556]
(AKD4556)
Figure 10
10u
10u
10u 0.1u
Analog Supply
(3.0V)
+
+
5.1ohm 10u 0.1u
Mode
Control
Figure 10.
1 RIN
ROUT 20
2 LIN
LOUT 19
3 VSS
VCOM 18
4 VA
5 VD
AK4556
+
2.2u
0.1u
Reset
PDN 17
BCLK 16
6 DEM0
MCLK 15
7 DEM1
LRCK 14
8 SDTO
SDTI 13
9 CKS0
CKS3 12
10 CKS1
CKS2 11
(Mode 0: AK4552
Audio
Controller
)
Notes:
- AK4556 VSS
- LOUT/ROUT
220Ω
MS0559-J-00
400pF
2006/11
- 19 -
ASAHI KASEI
[AK4556]
1.
VA
VA
5.1Ω
VA
VD
VD
VSS
PC
2.
VA pin
VA pin
VSS pin
0.1µF
VCOM
2.2µF
0.1µF
VSS pin
VCOM pin
LSI
VA, VD, VCOM pin
3.
ADC
(typ. 0.5 x VA)
2’s complement
AK4556
DC
8kΩ (typ @ fs=48kHz, 96kHz, 192kHz)
VA
typ. 0.7 x VA Vpp
(ADC
DC
)
VCOM
HPF
128fs (@ fs=48kHz), 64fs (@ fs=96kHz) or 32fs (@ fs=192kHz)
AK4556
(RC
)
4.
DAC
(
VCOM
2’s complement
7FFFFFH(@24bit)
000000H(@24bit)
VCOM
)
VCOM+
mV
DC
0.7 x VA Vpp (typ)
800000H(@24bit)
∆Σ
DC
MS0559-J-00
2006/11
- 20 -
ASAHI KASEI
[AK4556]
6.5 ± 0.1
11
1
10
0.105 ~ 0.175
0.10
0.65
6.4 ± 0.2
4.4 ± 0.1
0.60 ± 0.10
20
M
0o ~ 8 o
0.195 ~ 0.275
0.10 S
1.20MAX
0.10 ± 0.05
1.00 ± 0.05
S
„
MS0559-J-00
2006/11
- 21 -
ASAHI KASEI
[AK4556]
AKM
4556VT
XXXXXX
1) Pin #1 indication
2) Date Code: XXXXXX (6 digits)
3) Marketing Code: 4556VT
Date (YY/MM/DD)
06/11/06
Revision
00
Reason
Page
Contents
•
•
•
•
•
•
MS0559-J-00
2006/11
- 22 -