ASAHI KASEI [AKD4528]
<KM063101> 2005/11
- 1 -
AKD4528 24 A/D & D/A AK4528 A/D → D/A
A/D D/A
AKD4528 --- AK4528
(IBM-AT PC
WindowsNT )
•
- DIT(AK4353), DIR(AK4112B)
• 10
AK4112B
(DIR)
AK4353
(DIT)
Opt In
Opt Out
A
K4528
+15V AGND
LIN
RIN
LOUT
ROUT
10pin Header
Control Data
-15V DGND
Input
Buffer
Regulator
Output
Buffer
Figure1. AKD4528
*
AK4528 Rev.C
AKD4528
ASAHI KASEI [AKD4528]
<KM063101> 2005/11
- 2 -
27kΩ(typ. @fs=44.1kHz) 0.56 x VREF
Vpp(typ) 2.9V Figure.2 VA=5V 3.3kohm 4.7kohm
2’s DC (ADC DC
) HPF (fc=0.9Hz @fs=44.1kHz)
AK4528 64fs 64fs
RC 64fs
64fs
Figure2
AK4528
1.5nF
330
+
Vop+/-=+/-15V
Signal
10k
330
0.1u
22u
4.7k
4.7k
5.96Vpp
2.8Vpp
2
3
4
5
A
INR+
A
INR-
A
INL-
A
INL+
4.7k
Vop+
4.7k
VA
3.3k
10u
BIAS
Same circuit
2.8Vpp
NJM5532
+
+
-
-
Vop-
VA=5V
Input RC filter response : fc = 160kHz, g = -0.07dB at 20kHz, -0.26dB at 40kHz.
Figure2.
AK4528 2
LPF(fc=93.2kHz,Q=0.712) NJM5532D
BNC AOUTL, AOUTR 5.4Vp-p
A
OUT-
A
OUT+
+Vop
-Vop
Analog
Out
4.7k 4.7k
200
4.7k
3300p
200
4.7k 470p
470p
fc=93.2kHz, Q=0.712, g=-0.1dB at 40kHz
+
-
Figure3. 2 LPF ( )
ASAHI KASEI [AKD4528]
<KM063101> 2005/11
- 3 -
[+15V] ( ) = +15V
[-15V] ( ) = -15V
[AGND] ( ) = 0V
[DGND] ( ) = 0V
Note
2) DIP
3)
SW3 (PDN) L” AK4528, AK4112B, AK4353
H”
1) A/D-D/A (Default)
2) DIR D/A
3) DIT A/D
1) Default
AK4112B X’tal
2) DIR D/A
AK4112B PLL
3) DIT A/D
AK4112B X’tal
( AK4353 Default 24bit I2S )
ASAHI KASEI [AKD4528]
<KM063101> 2005/11
- 4 -
SW2
[SW2]: AK4112B ON” (“H”) OFF” (“L”)
( )
No. Name Default OFF ON
1 OCKS0 OFF
2 OCKS1 OFF
Default 256fs
3 CM0 ON
4 CM1 OFF
Default X’tal
5 DIF0 ON
6 DIF1 OFF
7 DIF2 ON
Default 24bit, I
2
S
Table 1. SW2
1.
AK4112B AK4112B MCKO1 pin
OCKS1
pin
(SW2-2)
OCKS0
pin
(SW2-1)
MCKO1
X’tal
fs (kHz)
0 0 256fs 256fs 32, 44.1, 48, 96 (Default)
0 1 256fs 256fs 32, 44.1, 48, 96
1 0 512fs 512fs 32, 44.1, 48
Table 2.
2.
CM1
pin
(SW2-4)
CM0
pin
(SW2-3)
PLL
X'tal
DAC
0 0 ON OFF PLL
0 1 OFF ON X'tal ADC
(Default)
Table 3.
( ) ON: (Power-up), OFF: (Power-Down)
3.
DIF2
pin
(SW2-7)
DIF1
pin
(SW2-6)
DIF0
pin
(SW2-5)
ADC
DAC
LRCK
BICK
0 0 0 24bit, Left justified 16bit, Right justified H/L 64fs
0 0 1 24bit, Left justified 18bit, Right justified H/L 64fs
0 1 0 24bit, Left justified 20bit, Right justified H/L 64fs
0 1 1 24bit, Left justified 24bit, Right justified H/L 64fs
1 0 0 24bit, Left justified 24bit, Left justified H/L 64fs
1 0 1 24bit, I
2
S 24bit, I
2
S L/H 64fs (Default)
Table 4.
ASAHI KASEI [AKD4528]
<KM063101> 2005/11
- 5 -
SW1
[SW1]: AK4528 “ON” (“H”) “OFF” (“L”)
( )
No. Name Default OFF ON
1 P/S ON
Default
2 DEM1 OFF
3 DEM0 ON
Default OFF
4 DFS OFF
Default 2
5 DIF ON
I
2
S (Default)
6 CKS1 OFF
7 CKS0 OFF
Default 256fs
Table 5. SW1
AK4528
( )
1.
P/S “H” DIF DFS,
CKS1, CKS0 P/S “L”
CKS1, CKS0, DIF CDTI, CCLK, CSN DEM1, DEM0, DFS
OR
DEM1, DEM0, DFS “L”
2.
(a)
CMODE
bit
CKS1
bit
CKS0
bit
MCLK
(DFS bit = “0”)
MCLK
2
(DFS bit = “1”)
0 0 0 256fs N/A (Default)
0 0 1 512fs 256fs
0 1 0 1024fs 512fs
1 0 0 384fs N/A
1 0 1 768fs 384fs
Table 6.
(b)
CKS1
pin
(SW1-6)
CKS0
pin
(SW1-7)
MCLK
(DFS pin = “L”)
MCLK
2
(DFS pin = “H”)
L L 256fs N/A (Default)
L H 512fs 256fs
H L 384fs N/A
H H 1024fs 512fs
Table 7.
ASAHI KASEI [AKD4528]
<KM063101> 2005/11
- 6 -
3.
(a)
Mode
DIF2
bit
DIF1
bit
DIF0
bit
SDTO
SDTI
LRCK
BICK
0 0 0 0 24bit, MSB justified 16bit, LSB justified H/L ≥ 32fs
1 0 0 1 24bit, MSB justified 20bit, LSB justified H/L ≥ 40fs
2 0 1 0 24bit, MSB justified 24bit, MSB justified H/L ≥ 48fs (Default)
3 0 1 1 24bit, I
2
S 24bit, I
2
S L/H ≥ 48fs
4 1 0 0 24bit, MSB justified 24bit, LSB justified H/L ≥ 48fs
Table 8.
(b)
Mode
DIF
pin
(SW1-5)
SDTO
SDTI
LRCK
BICK
2 0 24bit, MSB justified 24bit, MSB justified H/L ≥ 48fs
3 1 24bit, I
2
S 24bit, I
2
S L/H ≥ 48fs (Default)
Table 9.
AK4353 (DIT)
( )
1.
DFS1, DFS0 bit
CKS2
bit
CKS1
bit
CKS0
bit
“1”, “1”
(1/2 )
“0”, “0”
( )
“0”, “1”
(2 )
0 0 0 512fs 256fs
(Default)
128fs
0 0 1 256fs 256fs 256fs
0 1 0 768fs 384fs 192fs
0 1 1 384fs 384fs 384fs
1 0 0 1024fs 512fs 256fs
1 0 1 512fs 512fs N/A
1 1 0 1536fs 768fs 384fs
1 1 1 768fs 768fs N/A
Table 10.
( ) DFS1, DFS0 = “1”, ”0”: ( )
ASAHI KASEI [AKD4528]
<KM063101> 2005/11
- 7 -
PORT2
CR-I/F
1
2
910
CSN
CCLK
CDTI
2.
Mode DIF2
bit
DIF1
bit
DIF0
bit
SDTI L/R BICK
0 0 0 0 16bit, LSB justified H/L
≥32fs
1 0 0 1 18bit, LSB justified H/L
≥36fs
2 0 1 0 20bit, LSB justified H/L
≥40fs
3 0 1 1 24bit, LSB justified H/L
≥48fs
4 1 0 0 24bit, MSB justified H/L
≥48fs
5 1 0 1 I
2
S L/H
≥48fs
(Default)
6 1 1 0 Reserved
7 1 1 1 Reserved
Table 11.
JP1 (RX) : BNC
TORX176 Default : AK4112B
COAX : BNC AK4112B
JP2 (GND) : AGND DGND /
: AGNDDGND
Default : AGND DGND
LED
[LE1] (ERF) : AK4112B
[LE2] (FS96) : AK4112B 96kHz
[LE3] (AUTO): AK4112B AC-3/MPEG
[LE4] (V) : AK4112B Validity
SW3 : AK4528, AK4112B, AK4353
AKD4528 IBM-AT
10 PORT2 CR-I/F)
PC
1
PORT2 4
Figure4. PORT2
∗
ASAHI KASEI [AKD4528]
<KM063101> 2005/11
- 8 -
1. AKD4528
2. IBM-AT AKD4528 10 10
(Windows 2000/XP
AKM
Windows95/98/ME
Windows NT )
3. “AKD4528 Evaluation Kit” CD-ROM CD-ROM
4. CD-ROM “akd4528.exe” “akd4528_dit.exe”
akd4528.exe: AK4528
akd4528_dit.exe: AK4353
5.
1.
2. Port Reset
1.[Port Reset] : USB I/F (AKDUSBIF-A)
2.[Write Default] :
3.[All Write] :
4.[Function1] :
5.[Function2] :
6.[Function3] :
7.[Function4] : [Function3]
8.[Function5] : [Save]
9.[Save] :
10. [Open]:
11. [Write]:
“H” “1” “L” “0”
ASAHI KASEI [AKD4528]
<KM063101> 2005/11
- 9 -
1. [Write ]:
[Write]
(9 ) “H” “1”
“L” “0”
[OK] [Cancel]
2. [Function1 ]:
Address : 16 2
Data : 16 2
[OK] [Cancel]
3. [Function2 ]: ATT
AK4528 04H, 05H AK4353 03H, 04H
Address : 16 2
Start Data : Start Data 16 2
End Data : End Data 16 2
Interval : Interval
Step : Step
Mode Select : 9
: Start Data End Data Start Data
[ ] Start Data = 00, End Data = 09
: 00 01 02 03 04 05 06 07 08 09 09 08 07 06 05 04 03 02 01 00
: Start Data End Data Start Data
[ ] Start Data = 00, End Data = 09
: 00 01 02 03 04 05 06 07 08 09
[OK] [Cancel]
ASAHI KASEI [AKD4528]
<KM063101> 2005/11
- 10 -
4. [Save] [Open]
4-1. [Save]
“akr”
(1) [Save]
(2) [Save] “akr”
4-2. [Open]
[Save] [Save]
(1) [Open]
(2) ( “akr ”) [Open]
ASAHI KASEI [AKD4528]
<KM063101> 2005/11
- 11 -
5. [Function3 ]
(1) [F3]
(2)
“-1”
(3) [Start]
“-1” [START]
[Function3] Window [Save] [Open]
“aks”
Figure 1. Window of [F3]
ASAHI KASEI [AKD4528]
<KM063101> 2005/11
- 12 -
6. [Function4 ]
[Function3] [F4]
Figure 2 window
Figure 2. [F4] window
ASAHI KASEI [AKD4528]
<KM063101> 2005/11
- 13 -
6-1. [OPEN] [START]
(1) [OPEN] (*.aks)
Figure 3
Figure 3. [F4] window(2)
(2) [START]
6-2. [SAVE] [OPEN]
[SAVE] : “*.ak4”
[OPEN] : “*.ak4”
6-3.
(1) [Function4]
(2) [SAVE] [OPEN]
(3) [Function3]
ASAHI KASEI [AKD4528]
<KM063101> 2005/11
- 14 -
7. [Function5 ]
[SAVE]
[F5] Figure 4 Window
Figure 4. [F5] window
7-1. [OPEN] [WRITE]
(1) [OPEN] (*.akr)
(2) [WRITE]
7-2. [SAVE] [OPEN]
[SAVE] : “*.ak5”
[OPEN] : “*.ak5”
7-3.
(1) [SAVE] [OPEN]
(2) [Save]
ASAHI KASEI [AKD4528]
<KM063101> 2005/11
- 15 -
AK4528 Measurement Result
Conditions:
Measurement unit: Audio Precision System Two Cascade
MCLK: 256fs
BICK: 64fs
LRCK: 44.1kHz(DIR or DIT), or 96kHz(DIR or DIT)
Power supply: VA=VD=VT=5.0V
Interface: DIT or DIR
Temperature: Room Temp.
1. ADC
1-1. fs = 44.1kHz
Parameter Input signal BW, filter Results unit
Lch Rch
S/(N+D) 1kHz, -0.5dB 20kHz 98.4 98.2 dB
Dynamic range 1kHz, -60dB 20kHz 102.6 102.6 dB
20kHz, A-weighted 107.4 107.5 dB
S/N off 20kHz 102.8 102.8 dB
20kHz, A-weighted 107.5 107.5 dB
1-2. fs=96kHz
Parameter Input signal BW, filter Results unit
Lch Rch
S/(N+D) 1kHz, -0.5dB fs/2 91.4 92.8 dB
Dynamic range 1kHz, -60dB fs/2 99.8 99.9 dB
fs/2, A-weighted 108.3 108.5 dB
S/N off fs/2 100.0 100.8 dB
fs/2, A-weighted 108.9 109.0 dB
ASAHI KASEI [AKD4528]
<KM063101> 2005/11
- 16 -
DAC
2-1. fs=44.1kHz
Parameter Input signal BW, filter Results unit
Lch Rch
S/(D+N) 1kHz, 0dBFS 20kHz 93.7 94.5 dB
Dynamic range 1kHz, -60dBFS 20kHz 108.0 108.0 dB
22kHz, A-weighted 110.7 110.6 dB
S/N "0" data 20kHz 108.2 108.0 dB
22kHz, A-weighted 110.9 110.7 dB
2-2. fs=96kHz
Parameter Input signal BW, filter Results unit
Lch Rch
S/(N+D) 1kHz, 0dBFS 40kHz 91.2 91.8 dB
Dynamic range 1kHz, -60dBFS 40kHz 104.8 104.9 dB
80kHz, A-weighted 110.0 110.0 dB
S/N "0" data 40kHz 104.9 104.8 dB
80kHz, A-weighted 110.2 109.9 dB
ASAHI KASEI [AKD4528]
<KM063101> 2005/11
- 17 -
1. ADC
(fs=44.1kHz)
AKM AK4528 ADC FFT (Input Level=-0.5dBFS, fin=1kHz)
20 20k50 100 200 500 1k 2k 5k 10k
Hz
-160
+0
-150
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
F
S
FFT (Input Level = -0.5dBFS, fin=1kHz)
AKM AK4528 ADC FFT (Input Level=-60dBFS, fin=1kHz)
20 20k50 100 200 500 1k 2k 5k 10k
Hz
-160
+0
-150
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
F
S
FFT (Input Level = -60dBFS, fin=1kHz)
ASAHI KASEI [AKD4528]
<KM063101> 2005/11
- 18 -
(fs=44.1kHz)
AKM AK4528 ADC FFT (noise floor)
20 20k50 100 200 500 1k 2k 5k 10k
Hz
-160
+0
-150
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
F
S
FFT (noise floor)
ASAHI KASEI [AKD4528]
<KM063101> 2005/11
- 19 -
(fs=44.1kHz)
AKM AK4528 ADC THD + N vs Amplitude(fin=1kHz)
-140 +0-130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10
dBr
-110
-80
-108
-106
-104
-102
-100
-98
-96
-94
-92
-90
-88
-86
-84
-82
d
B
F
S
THD + N vs Amplitude (fin=1kHz)
AKM AK4528 ADC THD + N vs Input Frequency(Input Level=0dBFS)
20 20k50 100 200 500 1k 2k 5k 10k
Hz
-110
-80
-108
-106
-104
-102
-100
-98
-96
-94
-92
-90
-88
-86
-84
-82
d
B
F
S
THD + N vs Input Frequency (Input Level = -0.5dBFS)
ASAHI KASEI [AKD4528]
<KM063101> 2005/11
- 20 -
(fs=44.1kHz)
AKM AK4528 ADC Linearity
-140 +0-130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10
dBr
-140
+0
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
F
S
Linearity (fin=1kHz)
AKM AK4528 ADC Crosstalk
20 20k50 100 200 500 1k 2k 5k 10k
Hz
-1
+0
-0.95
-0.9
-0.85
-0.8
-0.75
-0.7
-0.65
-0.6
-0.55
-0.5
-0.45
-0.4
-0.35
-0.3
-0.25
-0.2
-0.15
-0.1
-0.05
d
B
F
S
Frequency Response (Input Level=1kHz)
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/
