AKM AKD4556-B Manuel utilisateur

ASAHI KASEI [AKD4556-B]

<KM082901> 2006/08

- 1 -

GENERAL DESCRIPTION

The AKD4556-B is an evaluation board for the AK4556, the 24Bit A/D & D/A converter. The AKD4556-B

can evaluate A/D converter and D/A converter separately in addition to loopback mode (A/D→D/A). The

AKD4556-B also has the digital audio interface and can achieve the interface with digital audio systems

via opt-connector.

Ordering guide

AKD4556-B --- Evaluation board for AK4556

FUNCTION

Digital interface

- DIT (AK4114): optical or BNC

- DIR (AK4114): optical or BNC

10pin header for serial control interface

AK4114

(DIR&DIT)

Opt In

Opt Out

K4556

LIN

RIN

LOUT

ROUT 10pin Header

DSP

GND

Regulator

BNC

Figure 1. AKD4556-B Block Diagram

* Circuit diagram and PCB layout are attached at the end of this manual.

AK4556 Evaluation board Rev.1

KD4556-B

ASAHI KASEI [AKD4556-B]

<KM082901> 2006/08

- 2 -

Evaluation Board Manual

Operation sequence

1) Set up the power supply lines

[5V] (red) = +5V (3.3V is supplied to the AK4556 , the AK4114 , and the Digital Logic via the

regulator.)

[GND] (black) = 0V

2) Set up the evaluation modes, jumper pins and DIP switch. (See the followings.)

3) Power on

The AK4556 should be reset once bringing SW1 (PDN) “L” upon power-up.

The function of the toggle SW.

[SW1] : Resets the AK4556 & AK4114. Keep “H” during normal operation.

ASAHI KASEI [AKD4556-B]

<KM082901> 2006/08

- 3 -

Evaluation modes

In case of the AK4556 evaluation using the AK4114, it is necessary to correspond to the audio interface format.

RX and TX use BNC connector at evaluation of Quad Speed with the AK4114.

Applicable evaluation modes

(1) Evaluation of Loopback mode using the AK4114 <default>

(2) Evaluation of DAC using DIR of the AK4114

(3) Evaluation of ADC using DIT of the AK4114

(4) All interface signals including master clock are fed externally.

(1) Evaluation of Loopback mode using the AK4114

X’tal oscillator (X1) 24.576MHz is used.

(1-1) Slave mode <Default>

JP1 : Short

JP2 : Short

SW3-1 (XTL1) : H

SW3-2 (XTL0) : L

SW3-7 (CM0) : H

For the AK4556’s sampling speed and audio interface format, refer to Table 3 on page 8.

For the AK4114’s sampling speed and audio interface format, refer to Table 6 and Table 7 on page 9.

Example . Setting of the AK4556 mode 4 (HPF:ON , Audio Format: I2S)

SW2 AK4556 SW3 AK4114

CKS3 CKS2 CKS1 CKS0 DIF1 DIF0 OCKS1 OCKS0

Speed

(SW2-3) (SW2-4) (SW2-5) (SW2-6) (SW3-3) (SW3-4) (SW3-5) (SW3-6)

Normal L H L L L H H L

Double L H L L L H L L

Quad L H L L L H H H

(1-2) Master mode

JP1 : Short

JP2 : Short

SW3-1 (XTL1) : H

SW3-2 (XTL0) : L

SW3-3 (DIF1) : H

SW3-4 (DIF0) : H

SW3-7 (CM0) : H

For the AK4556’s sampling speed and audio interface format, refer to Table 3 on page 8.

For the AK4114’s sampling speed and audio interface format, refer to Table 6 and Table 7 on page 9.

Example . Setting of the AK4556 Master mode (HPF:ON , Audio Format: I2S)

SW2 AK4556 SW3 AK4114

CKS3 CKS2 CKS1 CKS0 OCKS1 OCKS0

Speed

(SW2-3) (SW2-4) (SW2-5) (SW2-6) (SW3-5) (SW3-6)

Normal H H L H H L

Double H H L L L L

Quad H H H L H H

ASAHI KASEI [AKD4556-B]

<KM082901> 2006/08

- 4 -

(2) Evaluation of DAC using DIR of the AK4114

DIR generates MCLK , BCLK , LRCK , and SDATA from received data via optical (PORT1) or BNC connector (J6).

(2-1) Slave mode

JP1 : Short

JP2 : Short

JP3 : OPT or BNC

SW3-1 (XTL1) : H

SW3-2 (XTL0) : H

SW3-7 (CM0) : L

For the AK4556’s sampling speed and audio interface format, refer to Table 3 on page 8.

For the AK4114’s sampling speed and audio interface format, refer to Table 6 and Table 7 on page 9.

Example . Setting of the AK4556 mode 4 (HPF:ON , Audio Format: I2S)

SW2 AK4556 SW3 AK4114

CKS3 CKS2 CKS1 CKS0 DIF1 DIF0 OCKS1 OCKS0

Speed

(SW2-3) (SW2-4) (SW2-5) (SW2-6) (SW3-3) (SW3-4) (SW3-5) (SW3-6)

Nomal L H L L L H H L

Double L H L L L H L L

Quad L H L L L H H H

(2-2) Master mode

JP1 : Short

JP2 : Short

JP3 : OPT or BNC

SW3-1 (XTL1) : H

SW3-2 (XTL0) : H

SW3-3 (DIF1) : H

SW3-4 (DIF0) : H

SW3-7 (CM0) : L

For the AK4556’s sampling speed and audio interface format, refer to Table 3 on page 8.

For the AK4114’s sampling speed and audio interface format, refer to Table 6 and Table 7 on page 9.

Example . Setting of the AK4556 Master mode (HPF:ON , Audio Format: I2S)

SW2 AK4556 SW3 AK4114

CKS3 CKS2 CKS1 CKS0 OCKS1 OCKS0

Speed

(SW2-3) (SW2-4) (SW2-5) (SW2-6) (SW3-5) (SW3-6)

Normal H H L H H L

Double H H L L L L

Quad H H H L H H

ASAHI KASEI [AKD4556-B]

<KM082901> 2006/08

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(3) Evaluation of ADC using DIT of the AK4114

Optical (PORT2) or BNC (J7) connector is used. DIT generates audio bi-phase signal.

(3-1) Slave mode

(3-1-1) When using the AK4114’s PLL

Optical (PORT1) or BNC (J6) connector provides access to the bi-phase signal generated by the AK4114.

JP1 : Short

JP2 : Short

JP3,JP4 : OPT or BNC

SW3-1 (XTL1) : H

SW3-2 (XTL0) : H

SW3-7 (CM0) : L

(3-1-2) When using X’tal oscillator (X1) 24.576MHz

JP1 : Short

JP2 : Short

JP4 : OPT or BNC

SW3-1 (XTL1) : H

SW3-2 (XTL0) : L

SW3-7 (CM0) : H

For the AK4556’s sampling speed and audio interface format, refer to Table 3 on page 8.

For the AK4114’s sampling speed and audio interface format, refer to Table 6 and Table 7 on page 9.

Example . Setting of the AK4556 Mode 8 (HPF:ON , Audio Format:LJ)

SW2 AK4556 SW3 AK4114

CKS3 CKS2 CKS1 CKS0 DIF1 DIF0 OCKS1 OCKS0

Speed

(SW2-3) (SW2-4) (SW2-5) (SW2-6) (SW3-3) (SW3-4) (SW3-5) (SW3-6)

Normal H L L L L L H L

Double H L L L L L L L

Quad H L L L L L H H

ASAHI KASEI [AKD4556-B]

<KM082901> 2006/08

- 6 -

(3-2) Master mode

(3-2-1) When using the AK4114’s PLL

Optical (PORT1) or BNC (J6) connector provides access to the bi-phase signal generated by the AK4114.

JP1 : Short

JP2 : Short

JP3,JP4 : OPT or BNC

SW3-1 (XTL1) : H

SW3-2 (XTL0) : H

SW3-3 (DIF1) : H

SW3-4 (DIF0) : H

SW3-7 (CM0) : L

(3-2-2) When using X’tal oscillator (X1) 24.576MHz

JP1 : Short

JP2 : Short

JP4 : OPT or BNC

SW3-1 (XTL1) : H

SW3-2 (XTL0) : L

SW3-3 (DIF1) : H

SW3-4 (DIF0) : H

SW3-7 (CM0) : H

For the AK4556’s sampling speed and audio interface format, refer to Table 3 on page 8.

For the AK4114’s sampling speed and audio interface format, refer to Table 6 and Table 7 on page 9.

Example . Setting of the AK4556 Master Mode (HPF:ON , Audio Format: I2S)

SW2 AK4556 SW3 AK4114

CKS3 CKS2 CKS1 CKS0 OCKS1 OCKS0

Speed

(SW2-3) (SW2-4) (SW2-5) (SW2-6) (SW3-5) (SW3-6)

Normal H H L H H L

Double H H L L L L

Quad H H H L H H

ASAHI KASEI [AKD4556-B]

<KM082901> 2006/08

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(4) All interface signals including master clock are fed externally.

PORT3 is used.

(4-1) Slave mode

JP1 : Open

JP2 : Open

SW3-3 (DIF1) : H

SW3-4 (DIF0) : H

In slave mode , the AK4556’s sampling speed and audio interface format is set by SW2. See Table 1 on page 8 for

possible mode setting.

(4-2) Master mode

JP1 : Open

JP2 : Open

SW3-3 (DIF1) : H

SW3-4 (DIF0) : H

In master mode , the AK4556’s sampling speed and audio interface format is set by SW2. See Table 1 on page 8 for

possible mode setting.

ASAHI KASEI [AKD4556-B]

<KM082901> 2006/08

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Setting of DIP SW

1. Evaluation mode setting of SW2 (AK4556)

No. Name Default

1 DEM1 L

2 DEM0 H

3 CKS3 L

4 CKS2 H

5 CKS1 L

6 CKS0 L

Table 1 . SW2 AK4556 Mode Setting

DEM1 DEM0 Mode

L L 44.1kHz

L H OFF

H L 48kHz

H H 32kHz

Table 2 . De-emphasis filter control

Mode CKS3 CKS2 CKS1 CKS0 HPF M/S MCLK Audio I/F

0 L L L L ON Slave

128/192fs (Quad Speed)

256/384fs (Double Speed)

512/768fs (Normal Speed)

LJ/RJ

1 L L L H ON Slave 256/384/512/768fs

(Normal Speed) LJ/RJ

2 L L H L OFF Slave

128/192fs (Quad Speed)

256/384fs (Double Speed)

512/768fs (Normal Speed)

LJ/RJ

3 L L H H OFF Slave 256/384/512/768fs

(Normal Speed) LJ/RJ

4 L H L L ON Slave

128/192fs (Quad Speed)

256/384fs (Double Speed)

512/768fs (Normal Speed)

I2S

5 L H L H ON Slave 256/384/512/768fs

(Normal Speed) I2S

6 L H H L OFF Slave

128/192fs (Quad Speed)

256/384fs (Double Speed)

512/768fs (Normal Speed)

I2S

7 L H H H OFF Slave 256/384/512/768fs

(Normal Speed) I2S

8 H L L L ON Slave

128/192fs (Quad Speed)

256/384fs (Double Speed)

512/768fs (Normal Speed)

9 H L L H ON Slave 256/384/512/768fs

(Normal Speed) LJ

10 H L H L OFF Slave

128/192fs (Quad Speed)

256/384fs (Double Speed)

512/768fs (Normal Speed)

11 H L H H OFF Slave 256/384/512/768fs

(Normal Speed) LJ

12 H H L L ON Master 256fs (Double Speed) I2S

13 H H L H ON Master 512fs (Normal Speed) I2S

14 H H H L ON Master 128fs (Quad Speed) I2S

15 H H H H ON Master 256fs (Normal Speed) I2S

Table 3 . AK4556 Mode Settting

In case of the AK4556 evaluation using the AK4114 , LJ/RJ (Mode 0 ~ Mode 3) in Audio I/F does not support.

ASAHI KASEI [AKD4556-B]

<KM082901> 2006/08

- 9 -

2. Evaluation mode setting of SW3 (AK4114)

No. Name Default

1 XTL1 H

2 XTL0 L

3 DIF1 L

4 DIF0 H

5 OCKS1 L

6 OCKS0 L

7 CM0 H

Table 4 . SW3 AK4114 Mode Setting

XTL1 XTL0 X’tal Frequency

L L 11.2896 MHz

L H 12.288 MHz

H L 24.576 MHz

H H OFF

Table 5 . Reference X’tal Frequency

DIF1 DIF0 DAUX SDTO LRCK,BCLK

L L 24bit LJ 24bit LJ O

L H 24bit I2S 24bit I2S O

H H 24bit I2S 24bit I2S I

Table 6. Audio Data Format

OCKS1 OCKS0 MCKO1 X’tal fs Max Speed

L L 256fs 256fs 96kHz Double

H L 512fs 512fs 48kHz Normal

H H 128fs 128fs 192kHz Quad

Table 7. Master Clock Output Frequency

CM0 PLL Clock Souce SDTO

L ON PLL RX

H OFF X’tal DAUX

Table 8 . Clock Operation Mode

Jumper pins set up

[JP1] : MCLK

Short : MCLK is supplied from the AK4114.

Open :MCLKissuppliedfromPORT3.

[JP2] : SDTI

Short : SDTI is supplied from the AK4114.

Open : SDTI is supplied from PORT3.

[JP3] : RX (DIR)

OPT : Optical connector (PORT1) is used.

BNC : BNC connector (J5) is used.

[JP4] : TX (DIT)

OPT : Optical connector (PORT2) is used.

BNC : BNC connector (J6) is used.

ASAHI KASEI [AKD4556-B]

<KM082901> 2006/08

- 10 -

Analog input circuit

RIN

10u

LIN

10u

LIN

RIN

Figure 2. Analog Input Circuit

Analog output circuit

22u

220

ROU

10k

C10

22u

R10

10k

R11

220

LOU

LOUT

ROUT

Figure 3. Analog Output Circuit

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