Asahi kasei Akd4619-a User manual

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1. General Description

The AKD4619-A is an evaluation board designed to demonstrate the characteristics of AK4619, which

is 4ch 32-bit 192KHz audio CODEC. The control settings of this board may be controlled via USB port,

allowing for easy A/D and D/A evaluation. Analog 3.5mm stereo jacks are used for the input and output

of the analog signals. This board also has a digital interface which can be connected to the digital audio

system via optical or coaxial connector.

1.1. Ordering guide

AKD4619-A --- Evaluation board for AK4619VN.

(Control software is included with this package)

2. Function

Analog audio input: Stereo-mini jack (x4)

Analog audio output: Stereo-mini jack (x2)

Digital audio interface

-DIT&DIR (AK4118A): Optical and Coaxial input/output connectors

-14-pin header for external signal interface

USB port for the board control

Figure 1. AKD4619-A Block Diagram (Note 1, Note 2)

Note 1. Circuit diagram and PCB layout are attached at the end of this manual.

Note 2. The AK4118A has built-in DIR, DIT and the X’tal oscillator.

AK4619 Evaluation Board Rev.0

AKD4619-A

 [AKD4619-A] 
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Table of Contents 
 
General Description ......................................................................................................................................................1 
1. Ordering guide.........................................................................................................................................................1 
Function ........................................................................................................................................................................1 
Table of Contents..........................................................................................................................................................2 
Board Diagram..............................................................................................................................................................3 
1. Board Diagram........................................................................................................................................................3 
2. Description ..............................................................................................................................................................3 
Evaluation Board Setup.................................................................................................................................................5 
1. Operation Sequence.................................................................................................................................................5 
Set up Power Supplies.............................................................................................................................................5 
1. AVDD setting .................................................................................................................................................5 
2. VREFH/VREFL Setting .................................................................................................................................5 
3. TVDD Setting.................................................................................................................................................6 
4. Power supplies for Peripherals Setting ...........................................................................................................6 
5. AGND/DGND Setting....................................................................................................................................7 
Set up External input/output path ............................................................................................................................8 
1. Evaluation Mode Setting example ..................................................................................................................8 
1.1. [B1] StereoI2S_48kHz_512fs_64fs <Default setting> ...........................................................................9 
1.2. [B2] StereoMSB_192kHz_128fs_64fs .................................................................................................11 
1.3. [B3] TDM128_I2S_48kHz_256fs_128fs..............................................................................................12 
1.4. [B4] TDM256_MSB_96kHz_256fs_256fs...........................................................................................13 
1.5. [B5] StereoPCMShort_48kHz_256fs_32fs...........................................................................................14 
1.6. [B6] StereoPCMLong_96kHz_256fs_64fs...........................................................................................15 
2. Signal Path and clock selection.....................................................................................................................16 
3. Digital Audio Interface .................................................................................................................................18 
4. Signal Routing setting (For [B1] [B2]).........................................................................................................20 
5. Signal Routing setting (For [B3] [B4] [B5] [B6]).........................................................................................21 
6. Serial Audio I/O Headers (For [B1] [B2]) ....................................................................................................22 
7. Serial Audio I/O Headers (For [B3] [B4] [B5] [B6])....................................................................................23 
8. Control Interface setting................................................................................................................................25 
9. Power-down (Device Reset) .........................................................................................................................25 
Control Software Manual............................................................................................................................................26 
1. Evaluation Board and Control Software Settings..................................................................................................26 
2. Software Operation Overview...............................................................................................................................26 
3. Common Buttons...................................................................................................................................................27 
4. Tab Functions........................................................................................................................................................28 
[MainFunc]: Easy function control tab..................................................................................................................28 
1. Function button.............................................................................................................................................30 
2. Gain Setting Dialog.......................................................................................................................................31 
3. Volume Setting Dialog..................................................................................................................................32 
[Script]: Script function tab...................................................................................................................................33 
[RegMap]: Register Map tab.................................................................................................................................35 
Measurement Data ......................................................................................................................................................36 
Revision History .........................................................................................................................................................38 
IMPORTANT NOTICE ...................................................................................................................................................39 
 
 
 
 

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4. Board Diagram

4.1. Board Diagram

Figure 2. AKD4619-A Diagram

4.2. Description

(1) Evaluation Chip

AK4619 U100 : Audio CODEC.

(2) Analog data Terminal

Analog Input (Stereo mini jack), J201, J202, J203, J204 for IN1N/P, IN2N/P, IN3N/P, IN4N/P.

Analog Output (Stereo mini jack), J210, J211 for AOUT1L/R, AOUT2L/R.

Refer to the Figure 16.

(3) Digital Interface Optical/Coaxial Connector.

Input Connector PORT300 :Optical (It supports sampling frequencies from 32 kHz to 96 kHz for input.)

PORT301 :Coaxial (It supports sampling frequencies from 32 kHz to 192 kHz for input.)

Output Connector PORT303 :Optical (It supports sampling frequencies from 32 kHz to 96 kHz for output.)

PORT304 :Coaxial (It supports sampling frequencies from 32 kHz to 192 kHz for output.)

Refer to the Figure 19, Table 8.

(4) External Port

INOUT-Port PORT401

Refer to the Figure 24, Table 17, and Table 18.

(5) Power supply and GND

J701 (AVDD) : +5V/3.3V Power Supply

J730 (VREFH) : +5V/3.3V Power Supply (VREFH is connected externally to AVDD)

J702 (TVDD) : +5.0V/+3.3V/1.8V Power Supply

J703 (REG) : +5.0V Power Supply

J731 (VREFL) : GND

J710 (AGND) : AGND

J711 (DGND) : DGND

Refer to the 5.1.1. Set up Power Supplies.

Analog Input

Power Supply

TVDD

Optical/COAX

Output

USB Port

Analog Output

Optical /COAX

Input

AK4619

External

Port

Power Supply

VREFH

Power Supply

AVDD

AK4118A

Toggle

switch 1

Toggle

switch 2

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(6) Digital Audio Interface chip

AK4118A U300 : DIR, DIT and X’tal oscillator.

(7) Toggle switch 1

SW500 for PDN setting of AK4619.

“H”: PDN = High

“L”: PDN = Low

Refer to the Figure 26, Table 20.

(8) Toggle switch 2

SW501 for PDN setting of AK4118A.

“H”: PDN = High

“L”: PDN = Low

Refer to the Figure 26, Table 20.

(9) USB Port

PORT601 : USB Port to control the AK4619 registers with I2C/SPI interface.

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5. Evaluation Board Setup

5.1. Operation Sequence

1. Set up Power Supplies

1.1. AVDD setting

Figure 3. Analog Power-Supply

Jack/Jumper

Name

Color/

Jumper

Default

Setting

Function

Comments

J701

AVDD

Yellow

+5.0V

AK4619 AVDD

This jack is used the AVDD power supply. (Note 3)

JP701

AVDD-

SEL1

1: REG

3: CON

Select REG

(1-2 short)

AVDD Power

supply Seting1

Select AVDD power supply routing.

REG: Regulator selected.

CON: AVDD terminal selected. (Note 4)

JP702

AVDD-

SEL2

1: REG

3: CON

Select REG

(1-2 short)

AVDD Power

supply Seting2

Select AVDD source.

REG: Regulator selected.

CON: AVDD terminal selected. (Note 4)

J710

AGND

Black

AK4619 VSS1

Should always be connected. (Figure 7)

Table 1. AVDD Setting

1.2. VREFH/VREFL Setting

Figure 4. VREFH/VREFL Power-Supply setting

Jack/Jumper

Name

Color/

Jumper

Default

Setting

Function

Comments

J730

VREFH

Yellow

AVDD

AK4619 VREFH

This jack is used the VREFH power supply. (Note 3)

JP730

VREFH-

SEL1

1: REG

3: CON

Select REG

(1-2 short)

VREFH Voltage

Setting 1

Select VREFH power supply routing.

REG: Regulator selected.

CON: VREFH terminal selected. (Note 4)

JP731

VREFH-

SEL2

1: AVDD

4: CON

3: REG3.3

Select REG3.3

(3-2 short)

VREFH Voltage

Setting 2

Select VREFH power supply routing.

AVDD: AVDD-SEL2 (JP702) selected.

CON: VREFH terminal selected. (Note 4)

REG3.3: Regulator selected.

J731

VREFL

Black

AK4619 VREFL

VREFL is connected externally to VSS1.

JP732

VREFL-

SEL1

1: CON

3: AGND

Select AGND

(3-2 short)

VREFL select

Select VREFL GND.

CON: J731 VREFL selected.

AGND: AGND selected.

Table 2. VREFH/VREFL Setting

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1.3. TVDD Setting

Figure 5. TVDD Power-Supply Setting

Jack/Jumper

Name

Color/

Jumper

Default

Setting

Function

Comments

J702

TVDD

Yellow

+5.0V

AK4619 TVDD

This jack is used the TVDD power supply. (Note 3)

JP703

TVDD-

SEL1

1: REG

3: CON

Select REG

(1-2 short)

TVDD Power

supply Seting1

Select TVDD power supply routing.

REG: Regulator selected.

CON: TVDD terminal selected. (Note 4)

JP704

TVDD-

SEL2

1: +3.3V

3: +1.8V

Select +3.3V

(1-2 short)

TVDD Power

supply Seting2

Select TVDD voltage supply selection.

+3.3V: Select +3.3V regulator output.

+1.8V: Select +1.8V regulator output.

JP705

TVDD-

SEL3

1: REG

3: CON

Select REG

(1-2 short)

AK4619 TVDD

Select TVDD source.

REG: Regulator selected.

CON: TVDD terminal selected. (Note 4)

J711

DGND

Black

AK4619 VSS2

Should always be connected. (Figure 7)

Table 3. TVDD Setting

1.4. Power supplies for Peripherals Setting

Figure 6. Peripherals Power-Supply setting

Jack/Jumper

Name

Color/

Jumper

Default

Setting

Function

Comments

J703

REG

Red

+5.0V

Power supply for

peripheral part on

the board

This jack is used to the buffer power supply. (Note 3)

JP706

D3318V-

SEL1

1: +3.3V

3: +1.8V

Select +3.3V

(1-2 short)

Buffer Power

supply Seting1

Select Buffer power supply voltage.

+3.3V: Select +3.3V regulator

+1.8V: Select +1.8V regulator

Table 4. Peripherals Setting

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1.5. AGND/DGND Setting

Figure 7. AGND-DGND setting

Jack/Jumper

Name

Color/

Jumper

Default

Setting

Function

Comments

JP710

GND-

SEL

Short

Open

Short

Common GND

Select

Select connection between AGND and DGND

Short: Common GND

Open: Separate

Table 5. AGND/DGND Setting

Note 3. Each supply line should be distributed independently from the power supply unit.

Note 4. Set the power supply to +3.3V, TVDD to +3.3V or +1.8V.

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2. Set up External input/output path

2.1. Evaluation Mode Setting example

At the top of [MainFunc] tab of the AK4619 control software, setting examples corresponding to the six

typical evaluation modes registered are shown.

Figure 8. Six typical evaluation Mode

Evaluation mode

ADC/

DAC

Input

Output

Reference

No.

Name

StereoI2S_

48kHz_512fs_64fs

ADC

AIN1 J201

AIN2 J202

OPT-OUT

PORT303

(SDOUT1)

Figure 9

Figure 16

Figure 19

Figure 20

Figure 22

6.4.1.1.

Default

DAC

OPT-IN

PORT300

(SDIN1)

AOUT1

J210

StereoMSB_

192kHz_128fs_64fs

ADC

AIN1 J201

AIN2 J202

COAX-OUT

PORT304

(SDOUT1)

Figure 11

Figure 16

Figure 19

Figure 20

Figure 22

6.4.1.1.

DAC

COAX-IN

PORT301

(SDIN1)

AOUT1

J210

TDM128_I2S_

48kHz_256fs_128fs

ADC

AIN1 J201

AIN2 J202

AIN3 J203

AIN4 J204

INOUT-PORT

PORT401

(SDOUT1)

Figure 12

Figure 16

Figure 21

Figure 23

6.4.1.1.

DAC

INOUT-PORT

PORT401

(SDIN1)

AOUT1

J210

AOUT2

J211

TDM256_MSB_

96kHz_256fs_256fs

ADC

AIN1 J201

AIN2 J202

AIN3 J203

AIN4 J204

INOUT-PORT

PORT401

(SDOUT1)

Figure 13

Figure 16

Figure 21

Figure 23

6.4.1.1.

DAC

INOUT-PORT

PORT401

(SDIN1)

AOUT1

J210

AOUT2

J211

StereoPCMShort_

48kHz_256fs_32fs

ADC

AIN1 J201

AIN2 J202

INOUT-PORT

PORT401

(SDOUT1)

Figure 14

Figure 16

Figure 21

Figure 24

6.4.1.1.

DAC

INOUT-PORT

PORT401

(SDIN1)

AOUT1

J210

StereoPCMLong_

96kHz_256fs_64fs

ADC

AIN1 J201

AIN2 J202

INOUT-PORT

PORT401

(SDOUT1)

Figure 15

Figure 16

Figure 21

Figure 24

6.4.1.1.

DAC

INOUT-PORT

PORT401

(SDIN1)

AOUT1

J210

Table 6. Evaluation Mode Setting example

(B1)

(B2)

(B3)

(B4)

(B5)

(B6)

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2.1.1. [B1] StereoI2S_48kHz_512fs_64fs <Default setting>

Audio Serial format: Stereo mode I2S compatible

fs = 48kHz, BICK = 64fs, MCLK = 512fs (24.576MHz)

Audio Serial Interface: OPT-IN (PORT300) OPT-OUT (PORT303)

ADC&DAC

Figure 9. B1 StereoI2S_48kHz_512fs_64fs Default setting path

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Audio Serial Interface: OPT-OUT (PORT303)

ADC : X’tal mode

Figure 10. B1 setting path ADC in X’tal mode

Without the OPT-IN (PORT300) input, the AK4118A operates in X'tal mode.

(1) In X'tal mode, LRCK is determined by setting OCKS1 and OCKS0pin of SW300_4-5pin based on

24.576MHz of X'tal oscillator.

(2) In X'tal mode, AK4118A also shifts to the loopback that connects the DAUX signal to the SDTO, and the

signal comes to the DIO of PORT408,409. Connect the jumper of PORT408,409 to GND.

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