AKM AK4528VM Evaluation Board Manual

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

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

(SW2-2)

OCKS0

(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

(SW2-4)

CM0

(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

(SW2-7)

DIF1

(SW2-6)

DIF0

(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

(SW1-6)

CKS0

(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

(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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AKM AK4528VM Evaluation Board Manual

AKM AK4528VM Evaluation Board Manual

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