AK4522

ASAHI KASEI
[AK4522]
AK4522
20Bit Stereo
AK4522
100dB
MD/DAT,
CMOS A/D & D/A
ADC & DAC
,
DAC
24pin SSOP
Stereo ADC
64x Oversampling
Sample Rate Ranging from 16kHz to 48kHz
S/(N+D): 92dB
Dynamic Range, S/N: 100dB
Digital HPF for offset cancellation
Stereo DAC
- 128x Oversampling
- Sample Rate Ranging from 16kHz to 48kHz
- 2nd order SCF + 2nd order CTF
- Digital de-emphasis for 32kHz, 44.1kHz, 48kHz sampling
- S/(N+D): 90dB
- Dynamic Range, S/N: 100dB
- Soft Mute
High Jitter Tolerance
Master Clock: 256fs, 384fs, 512fs
Analog Power Supply: 4.5 to 5.5V, Digital Power Supply: 2.7 to 5.5V
Small SSOP Package: 24-pin SSOP
-
M0020-J-03
2013/01
-1-
ASAHI KASEI
[AK4522]
AK4522VM
-10
+70
24pin SSOP 0.65mm pitch
2013/01
M0020-J-03
-2-
ASAHI KASEI
[AK4522]
No.
1
Pin Name
VREFH
I/O
I
2
3
4
5
6
7
8
9
10
11
12
13
14
AINR+
AINRAINL+
AINLVA
AGND
DIF0
DIF1
LRCK
SCLK
SDTI
SDTO
SMUTE
I
I
I
I
I
I
I
I
I
O
I
15
16
17
18
19
DEM0
DEM1
MCKI
VD
DGND
I
I
I
-
20
21
PD
CMODE
I
I
22
23
24
AOUTL
AOUTR
VCOM
O
O
O
Function
Positive Voltage Reference Input Pin, VA
Used as a positive voltage reference by ADC & DAC. VREFH is conne
externally to filtered VA.
Rch Analog Positive Input pin
Rch Analog Negative Input Pin
Lch Analog Positive Input pin
Lch Analog Negative Input Pin
Analog Power Supply Pin
Analog Ground pin
Audio Data Interface Format Pin
Audio Data Interface Format Pin
Input/Output Channel Clock Pin
Audio Serial Data Clock Pin
Audio Serial Data Input Pin
Audio Serial Data Output Pin
Soft Mute Pin
When this pin goes "H", soft mute cycle is initiated.
When returning "L", the output mute releases.
De-emphasis Frequency Select Pin
De-emphasis Frequency Select Pin
Master Clock Input/ X'tal Input Pin
Digital Power Supply Pin
Digital Ground Pin
Reset Pin
Master Clock Select Pin
"H": 384fs, "L": 256fs, "NC": 512fs
Lch analog output pin
Rch analog output pin
Common Voltage Output Pin, VA/2
Internal Biased pin
Note: All input pins except pull-down pins should not be left floating.
2013/01
M0020-J-03
-3-
ASAHI KASEI
[AK4522]
AGND,DGND=0V; Note 1
Parameter
Power Supplies:
Analog
Digital
|AGND-DGND|
Input Current, Any Pin Except Supplies
Analog Input Voltage
Digital Input Voltage
Ambient Temperature
power applied
Storage Temperature
Note: 1.
2. AGND
Note 2
min
-0.3
-0.3
-0.3
-0.3
-10
-65
max
6.0
6.0
0.3
10
VA+0.3
VD+0.3
70
150
Units
V
V
V
mA
V
V
DGND
AGND,DGND=0V; Note 1
Parameter
Power Supplies:
Note 3
Analog
Digital
Note: 1.
3. VA
Symbol
VA
VD
GND
IIN
VINA
VIND
Ta
Tstg
Symbol
min
typ
max
VA
VD
4.5
2.7
5.0
5.0
5.5
VA
Units
V
V
VD
M0020-J-03
2013/01
-4-
ASAHI KASEI
[AK4522]
Ta=25 ; VA,VD=5.0V; AGND=DGND=0V; VREFH=VA; fs=44.1kHz; SCLK=64fs,
MCLK=256fs, Signal Frequency=1kHz; 20bit Data; Measurement frequency=10Hz
20kHz
Parameter
min
typ
max
ADC Analog Input Characteristics: Differential Inputs; Analog Source Impedance=470
Resolution
20
S/ N+D
-0.5dB Input
Note 4
84
92
DR -60dB Input, A-Weighted
Note 5
94
100
S/N
A-Weighted
Note 5,6
94
100
Interchannel Isolation
90
110
Interchannel Gain Mismatch
0.1
0.3
Gain Drift
20
Input Voltage
AIN=0.6 x VREFH
Note 7
2.85
3.0
3.15
Input Resistance
20
30
Power Supply Rejection
Note 8
50
DAC Analog Output Characteristics:
Resolution
20
S/ N+D
80
90
DR
-60dB Output, A-Weighted, Note 5
95
100
S/N
A-Weighted, Note 9,6
95
100
Interchannel Isolation
90
110
Interchannel Gain Mismatch
0.2
0.5
Gain Drift
20
Output Voltage AOUT=0.58 x VREFH
2.65
2.9
3.15
Load Resistance
5
Load Capacitance
25
Power Supply Rejection
Note 8
50
Power supply Current
VA=VD=5V
Units
Bits
dB
dB
dB
dB
dB
ppm/
Vpp
k
dB
Bits
dB
dB
dB
dB
dB
ppm/
Vpp
k
pF
dB
Analog,VA
PD="H"
42
55
mA
Digital,VD
PD="H"
10
20
mA
Note: 4.
5. 16
6. CCIR-ARM
ADC,DAC
7.
8. VREFH
9. S/N "0"
S/ N+D =80dB typ, @VA=5V
ADC
DR
S/N
98dB DAC
DR
98dB
S/N
ADC
DAC
96dB
94dB
AIN+/- pin
1.5Vpp
VA,VD
1kHz,50mVpp
100dB
2013/01
M0020-J-03
-5-
ASAHI KASEI
[AK4522]
Ta=25 ; VA=4.5V
5.5V; VD=2.7
Parameter
ADC Digital Filter Decimation LPF :
Passband
Note 10
-0.005dB
-0.02dB
-0.06dB
-6.0dB
Stopband
Passband Ripple
Stopband Attenuation
Group Delay
Note 11
Group Delay Distortion
ADC Digital Filter HPF :
Frequency Response Note 5
-3dB
-0.5dB
-0.1dB
DAC Digital Filter:
Passband
Note 10
-0.06dB
-6.0dB
Stopband
Passband Ripple
Stopband Attenuation
Group Delay
Note 11
DAC Digital Filter+Analog Filter:
Frequency Response
0
20.0kHz
Notes: 10.
5.5V; fs=44.1kHz; DEM0="1"; DEM1="0"
Symbol
min
typ
max
PB
0
0
0
0
24.34
SB
PR
SA
GD
GD
19.76
20.02
20.20
22.05
29.3
0
kHz
kHz
kHz
kHz
kHz
dB
dB
1/fs
us
0.9
2.7
6.0
Hz
Hz
Hz
0.005
80
FR
PB
0
0
24.1
SB
PR
SA
GD
20.0
22.05
0.06
43
14.7
FR
fs
PB=20.02kHz @-0.02dB
0.2
0.454 x fs
ADC
11.
Units
kHz
kHz
kHz
dB
dB
1/fs
dB
1kHz
20
DAC
20
DC
Ta=25 ; VA=4.5V
Parameter
High-Level Input Voltage
Low-Level Input Voltage
High-Level Input Voltage
Low-Level Input Voltage
High-Level Output Voltage
Low-Level Output Voltage
Input Leakage Current
5.5V; VD=2.7
5.5V
Except CMODE pin
Except CMODE pin
CMODE pin
CMODE pin
Iout=-80uA
Iout=80uA
Note 12
Symbol
VIH
VIL
VIH
VIL
VOH
VOL
Iin
min
70%VD
95%VD
VD-0.4
-
typ
-
max
30%VD
10%VD
0.4
10
Units
V
V
V
V
V
V
uA
Note: 12. CMODE pin has internal pull-up and pull-down devices, nominally 50kohm.
2013/01
M0020-J-03
-6-
ASAHI KASEI
[AK4522]
Ta=25 ; VA=4.5V
5.5V; VD=2.7
5.5V; CL=20pF
Parameter
Symbol
Master Clock Timing
External Clock
256fs:
fCLK
Pulse Width Low
tCLKL
Pulse Width High
tCLKH
384fs:
fCLK
Pulse Width Low
tCLKL
Pulse Width High
tCLKH
512fs:
fCLK
Pulse Width Low
tCLKL
Pulse Width High
tCLKH
LRCK
Frequency
fsn
Duty Cycle
dfs
Serial Interface Timing
Slave mode
SCLK Period
tSCK
SCLK Pulse Width Low
tSCKL
Pulse Width High
tSCKH
LRCK Edge to SCLK " "
Note 13
tLRS
SCLK " " to LRCK Edge
Note 13
tSLR
LRCK to SDTO MSB
tLRM
SCLK " " to SDTO
tSSD
SDTI Hold Time
tSDH
SDTI Setup Time
tSDS
Reset Timing
PD Pulse Width
tPD
PD " " to SDTO valid
Note 14
tPDV
Notes: 13.
14. PD
AK4522
LRCK
SCLK
"
LRCK
PD "L"
min
typ
4.096
27
27
6.144
20
20
8.192
15
15
16
45
max
Unit
12.288
MHz
ns
ns
MHz
ns
ns
MHz
ns
ns
18.432
24.576
44.1
48
55
160
65
65
45
45
40
50
40
25
150
516
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
1/fs
"
"
"
.
2013/01
M0020-J-03
-7-
ASAHI KASEI
[AK4522]
Reset & Initialize Timing
2013/01
M0020-J-03
-8-
ASAHI KASEI
[AK4522]
MCLK
512fs
MCLK
MCKI
CMODE
Table 1
MCLK
PD ="L"
MCLK,SCLK,LRCK
MCLK
fs
MCLK=256fs, 384fs
LRCK
SCLK
256fs
CMODE="L"
384fs
CMODE="H"
512fs
CMODE="NC"
64fs
128fs
32.0kHz
8.1920MHz
12.2880MHz
16.384MHz
2.048MHz
4.096MHz
44.1kHz
11.2896MHz
16.9344MHz
22.579MHz
2.822MHz
5.644MHz
48.0kHz
12.2880MHz
18.4320MHz
24.576MHz
3.072MHz
6.144MHz
Table 1. System Clock Example
SCLK
LRCK
MSB
4
Mode
0
1
2
3
DIF1
0
0
1
1
DIF0
0
1
0
1
SDTI/SDTO
2's
Mode 3
SDTO ADC
20bit, MSB justified
20bit, MSB justified
20bit, MSB justified
IIS I2S
SCLK
SCLK
SDTI DAC
16bit, LSB justified
20bit, LSB justified
20bit, MSB justified
IIS I2S
32fs
L/R
H/L
H/L
H/L
L/H
LSB
SCLK
32fs
40fs
40fs
32fs or
40fs
Table 2. Serial Data Modes
2013/01
M0020-J-03
-9-
ASAHI KASEI
[AK4522]
Figure 1. Mode 0 Timing
Figure 2. Mode 1 Timing
M0020-J-03
2013/01
- 10 -
ASAHI KASEI
[AK4522]
Figure 3. Mode 2 Timing
Figure 4. Mode 3 Timing
HPF
ADC
DC
0.9Hz
HPF
HPF
fc
fs=44.1kHz
fs
M0020-J-03
2013/01
- 11 -
ASAHI KASEI
DAC
IIR
50/15us
[AK4522]
3
32kHz,44.1kHz,48kHz
DEM0,DEM1
DEM0="1",DEM1="0"
DEM 1
0
0
1
1
DEM0
0
1
0
1
Mode
44.1kHz
OFF
48kHz
32kHz
Table 3. De-emphasis filter control
DAC
SMUTE "H"
SMUTE "L"
0dB
1024LRCK
1024LRCK
DAC
-
SMUTE
"0"
1024LRCK
0dB
1024LRCK
1024/fs
-
"0"
GD
1024LRCK
0dB
Figure 5.
2013/01
M0020-J-03
- 12 -
ASAHI KASEI
AK4522
[AK4522]
ADC
DAC
PD
ADC
, SDTO
"L"
516 x LRCK
DAC
Figure 6
ADC
GD
A/D
"0"
A/D
PD
"
"
Figure 6.
M0020-J-03
2013/01
- 13 -
ASAHI KASEI
Figure 7
[AK4522]
ADC
Figure 10
AKD4522
Figure 7. Typical Connection Diagram
Notes:
- AOUT
- CMODE pin
M0020-J-03
2013/01
- 14 -
ASAHI KASEI
[AK4522]
Figure 8. Ground Layout
Figure 9. Power Supply Arrangement
2013/01
M0020-J-03
- 15 -
ASAHI KASEI
[AK4522]
1.
VA
VD
VA
VD
AGND
DGND
PC
2.
VREFH
AGND
AGND
0.1uF
0.1uF
VREFH
VA
VCOM
10uF
AGND
VCOM
VREFH
VCOM
3.
ADC
30k
typ
VCOM
VA/2
Figure 7
0.6 x VREFH Vpp typ
Figure 10
0.3 x VREFH Vpp typ
AK4522
2's
80000H @20bit
AK4522
AGND
VA
2
7FFFFH @20bit
00000H @20bit
DC
HPF
64fs
RC
64fs
fc=150kHz
64fs
64fs
Figure 10. Differential Input Buffer Example
2013/01
M0020-J-03
- 16 -
ASAHI KASEI
[AK4522]
4.
DAC
VCOM
2
2's
80000H @20bit
0.58 x VREFH Vpp typ
7FFFFH @20bit
00000H @20bit
VCOM
SCF
LSI
mV
Figure 11
CTF
DC
2
DC
Figure 11. External analog circuit example gain=6dB
2013/01
M0020-J-03
- 17 -
ASAHI KASEI
[AK4522]
24pin SSOP (Unit: mm)
2.10MAX
8.20
24
13
5.30
7.90±0.20
A
12
1
0.30±0.10
0.65±0.08
0.22±0.05
0.13 M
0.10±0.10
0.60±0.15
Detail A
Seating Plane
| 0.10
NOTE: Dimension "*" does not include mold flash.
0-8°
„ Package & Lead frame material
Package molding compound:
Lead frame material:
Lead frame surface treatment:
Epoxy
Cu
Solder plate
M0020-J-03
2013/01
- 18 -
ASAHI KASEI
[AK4522]
マーキング
AKM
AK4522VM
AAXXXX
XBYYYC: Date code identifier
XB: Lot number (X: Digit number, B: Alpha character)
YYYC: Assembly date (Y: Digit number, C: Alpha character)
改訂履歴
Date (Y/M/D)
12/01/25
Revision
02
Reason
仕様変更
13/01/30
03
誤記訂正
Page
1, 2,
18, 19
19
Contents
AK4522VF を削除 (24pin VSOP)
AK4522VM を追加 (24pin SSOP)
オーダリングガイドを変更
パッケージ図を変更
マーキング図を変更
マーキング図を変更
M0020-J-03
2013/01
- 19 -
ASAHI KASEI
[AK4522]
z
z
z
z
z
z
M0020-J-03
2013/01
- 20 -