AKM AK4679EG is a 24-bit stereo CODEC with Microphone/ Receiver/ Headphone/ Speaker/ Line amplifier as well as HF/Audio DSP. The device finds application in 2MIC Noise cancellation and Echo cancellation systems. It can also be used in Bluetooth applications and provides for external PORT connection. The device has been designed to enable evaluation of the 2MIC-NC and EC system by just connecting to the target product. USB connection is adopted for control interface, enabling to develop DSP codes with a PC. It comes with a USB Control Box and Control Software.
AKM AK4679EG is a 24-bit stereo CODEC with Microphone/ Receiver/ Headphone/ Speaker/ Line amplifier as well as HF/Audio DSP. The device finds application in 2MIC Noise cancellation and Echo cancellation systems. It can also be used in Bluetooth applications and provides for external PORT connection. The device has been designed to enable evaluation of the 2MIC-NC and EC system by just connecting to the target product. USB connection is adopted for control interface, enabling to develop DSP codes with a PC. It comes with a USB Control Box and Control Software.
[AKD4679-C]
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GENERAL DESCRIPTION
The AKD4679-C is an evaluation kit for the AK4679; a 24bit stereo CODEC with Microphone/ Receiver/
Headphone/ Speaker/ Line amplifier as well as HF/Audio DSP. It realizes an easy evaluation of the
2MIC-NC and EC system by just connecting to the target product. A USB connection is adopted for
control interface, enabling to develop DSP codes with a PC.
■ Ordering Guide
AKD4679-C --- Evaluation board for AK4679
USB Control Box
Control Software
FUNCTION
Write/Read RAM: Access to PRAM, CRAM, OFRREG and Registers
Digital Audio Interface
SYNC
BICK
SDI
SDO
Mini
Jack
HP
Mini
Jack
Lin2/Rin2
Mini
Jack
Lin1/Rin1
LineOUT
Mini
Jack
Mini
Jack
SPK-L
Mini
Jack
RCP/RCN
Bluetooth
9V IN
AK4679
Regulator
1.2V 1.8V 3.3V 5.0V
4556_LOUT
Mini
Jack
4556_LIN
Mini
Jack
AK4556
CTRL
PORT (10pin)
MONITOR
PORT (10pin)
DIGITAL I/F
PORT (24pin)
I2C
Figure 1. AKD4679-C-MAIN Block Diagram
AK4679 Evaluation Board Rev.2
AKD4679-C
[AKD4679-C]
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EVALUATION BORAD
■ Board View
Figure 2. AKD4679-C-MAIN Board View
(2) 9.0V-IN
(13) SPK_R
(Not use)
(6) 4556_LOUT
(3) 5.0V-OUT
(Not use)
(4) CONTROL
AK4679
(1) EXT
(5) MONITOR
(7) 4556_LIN
(8) HP
(9) LIN2/RIN2
(12) RCP/N
(11) LineOUT
(10) LIN1/RIN1
B
luetooth
module
AK4556
(14) SPK_L
[AKD4679-C]
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■ Description
No. Name Function
(1)
EXT (JP7)
(24 pin Header)
External System Signal Connector.
(2) 9.0V-IN (JP1, JP6) 9.0V Power Supply Terminal.
(3) 5.0V-OUT (JP8) Not use
(4)
CONTROL (JP5)
(10 pin Header)
USB Control Box Connector
(5)
MONITOR (J7)
(10 pin Header)
AKD77XX-HFS MONITOR Board Connector. (for HF Tuning)
(6)
4556_LOUT (J9)
(Mini Jack)
AK4556 Analog Output
(7)
4556_LIN (J8)
(Mini Jack)
AK4556 Analog Input
(8)
HP (J6)
(Mini Jack)
AK4679 Headphone Output
(9)
LIN2/RIN2 (J2)
(Mini Jack)
AK4679 Analog Input2 (MIC_IN2)
(10)
LIN1/RIN1 (J1)
(Mini Jack)
AK4679 Analog Input1 (MIC_IN1)
(11)
LineOUT (J3)
(Mini Jack)
AK4679 Analog Output
(12)
RCP/N (J4)
(Mini Jack)
AK4679 Receiver Output
(13)
SPK-R (J11)
(Mini Jack)
Not use
(14)
SPK-L (J5)
(Mini Jack)
AK4679 Speaker Output
EXT(24 pin Header) Pin Layout
Pin No. Name I/O Function
1 PORT1-BCLK I
These pins are connected to the PORT#1 of AK4679 via
toggle switch S2.
3 PORT1-SYNC I
5 PORT1-SDIN I
7 PORT1-SDOUT O
9 PORTB-BCLK I
These pins are connected to the PORTB of AK4679 via slide
switch S7.
11 PORB-SYNC I
13 PORTB-SDIN I
15 PORTB-SDOUT O
17
P-CSN
I These pins are connected to the AK4679 via toggle switch S9. These
pins are used to control the DSP block in case of the SPI control
interface mode is selected by toggle switch S9.
19
P-SO
O
21
P-SCLK
I/O
23
P-SI
I
2 PORT3-BCLK I
These pins are connected to the PORT#3 of AK4679 via slide
switch S8.
4 PORT3-SYNC I
6 PORT3-SDIN I
8 PORT3-SDOUT O
10 BCLKO O These pins output the I2S audio interface clock generated by AK4556
for EXT system. BCLK frequency is 64fs.
12 LRCKO O
14
P-PDN I
These pins are connected to the AK4679 to control the PDN pins.
16
P-SCL I
These pins are connected to the AK4679. When the I2C control
interface mode is selected by toggle switch S9, both of CODEC and
DSP block are controlled by these pins.
18
P-SDA I/O
20 DVSS -
GND
22 TVDD -
This pin output VDD (1.8V or 3.3V) supply for EXT system.
24 D3V -
This pin output D3V (3.3V) supply for EXT system.
[AKD4679-C]
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■ Control Box
The AKD4679-C should be connected to a PC via an USB control box. The USB control box is connected to a PC with an
USB cable and the AKD4679-C with 10-pin flat cable.
Note. USB Control Box : AKD77XX-HF-CONTROL-BOX2
■ Operation Sequence
(1) Jumper Pin Setting
Name Setting Using Default Setting
JP9
GND
Open
Separate Analog GND from Digital GND
Short
Short
Connect Analog GND and Digital GND
JP3
Stereo
Open
Differential Output
Short
Short
Single-end Output (stereo)
Table 1. Jumper Pin Setting
(2) Microphone Setting
Microphone
Main board Sub board
LIN1/RIN1 LIN2/RIN2
JP4
(IN1)
JP10
(IN2)
JP1
(MP2-SEL)
JP2
(IN1-)
JP3
(IN2-) -
Single Use/Use Not use Short Open RIN1 Open Open -
Differential Use Use Open Open LIN2 Short Short
R100:
2.2k→
1.0k
Table 2. Microphone Setting
(3) DIP Switch Setting
Name Setting Using Default Setting
SW1
1
CKS
0
AK4556 setting
Refer to Table4
H
2
CKS
1
L
3
CKS
2
H
4 CKS3 H
SW2
1
JX0
JX pin setting (*)
“L”: disenable / “H”: enable
L
2
JX1
L
SW3
1
C
AD0
I2C address setting “L”:0, “H”:1
0,0,1,1,0,CAD1,CAD0,R/W
L
2
CAD1
L
* This setting is valid when JX1-0 is selected by slide switch S4.
Table 3. DIP SW Setting
USB
Flat 10pin
AKD77XX-HF-CONTROL-BOX2
[AKD4679-C]
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Mode
CKS3
pin
CKS2
pin
CKS1
pin
CKS0
pin
HPF M/S MCLK
Audio Interface
Format
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)
I
2
S
5 L H L H ON Slave
256/384/512/768fs
(Normal Speed)
I
2
S
6 L H H L OFF Slave
128/192fs (Quad Speed)
256/384fs (Double Speed)
512/768fs (Normal Speed)
I
2
S
7 L H H H OFF Slave
256/384/512/768fs
(Normal Speed)
I
2
S
8 H L L L ON Slave
128/192fs (Quad Speed)
256/384fs (Double Speed)
512/768fs (Normal Speed)
LJ
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)
LJ
11 H L H H OFF Slave
256/384/512/768fs
(Normal Speed)
LJ
12 H H L L ON Master 256fs (Double Speed) I
2
S
13 H H L H ON Master 512fs (Normal Speed) I
2
S
14 H H H L ON Master 128fs (Quad Speed) I
2
S
15 H H H H ON Master 256fs (Normal Speed) I
2
S
Table 4. AK4556 Mode Setting
[AKD4679-C]
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■ Evaluation Mode
(1) 2MIC Noise canceller / Echo canceller
a. Analog input to Analog output
Control: PC (AKM Control Box)
Master: AK4556 Slave: AK4679
Path: 4556_LIN → AK4556 → AK4679 → SPK-L / RCP/RCN / LineOUT / HP
(Depend on Resister setting)
Lin1/ Rin1(MIC1) , Lin2/Rin2 (MIC2) →AK4679 →AK4556 → 4556_LOUT
SYNC
BICK
SDI
SDO
Mini
Jack
HP
Mini
Jack
Lin2/Rin2
Mini
Jack
Lin1/Rin1
LineOUT
Mini
Jack
Mini
Jack
SPK-L
Mini
Jack
RCP/RCN
Bluetooth
9V IN
AK4679
Regulator
1.2V 1.8V 3.3V 5.0V
4556_LOUT
Mini
Jack
4556_LIN
Mini
Jack
AK4556
CTRL
PORT (10pin)
MONITOR
PORT (10pin)
DIGITAL I/F
PORT (24pin)
I2C
Figure 3. Use block in (1)-a
AK4556 Mode SW1 Name Fs=8kHz Fs=16kHz
Master Mode
(normal speed)
I2S
1
CKS0
H
H
2 CKS1 L H
3
CKS2
H
H
4 CKS3 H H
Table 5. AK4556 Setting
S2 S3 S4 S6 S7 S8 S9
BT/4556 4.096 SYNC3 4556 LOW LOW DSP-I2C
Table 6. Toggle SW Setting
[AKD4679-C]
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b. Bluetooth Mode
Control: PC (AKM Control Box)
Master: Bluetooth Slave: AK4679
Path: Bluetooth → AK4679 → SPK-L / RCP/RCN / LineOUT / HP
(Depend on Resister setting
Lin1/ Rin1(MIC1) , Lin2/Rin2 (MIC2) → AK4679 → Bluetooth
SYNC
BICK
SDI
SDO
Mini
Jack
HP
Mini
Jack
Lin2/Rin2
Mini
Jack
Lin1/Rin1
LineOUT
Mini
Jack
Mini
Jack
SPK-L
Mini
Jack
RCP/RCN
Bluetooth
9V IN
AK4679
Regulator
1.2V 1.8V 3.3V 5.0V
4556_LOUT
Mini
Jack
4556_LIN
Mini
Jack
AK4556
CTRL
PORT (10pin)
MONITOR
PORT (10pin)
DIGITAL I/F
PORT (24pin)
I2C
Figure 4. Use block in (1)-b
S2 S3 S4 S6 S7 S8 S9
BT/4556 4.096 SYNC3 BT LOW LOW DSP-I2C
Table.7 Toggle SW Setting
[ Bluetooth Setting ]
Figure 5. Bluetooth
· Power the AKD4679-C on.
· Push the HOOK button of the AKD4679-C for seven seconds, then the D1 LED starts blinking and build-in
Bluetooth becomes pairing wait state.
· Set a mobile phone into Bluetooth search state.
HOOK
BT-RESET
Blue LED
[AKD4679-C]
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· Search result is displayed.
· Select [Free2move WA] from the search result and register it.
· Enter [0000] when password is required.
· Select the registered machine and connect to them when power-on the AKD4679-C next time.
The flow of search will be different according to the mobile phone. (ex. A password for mobile phone may be
required) Please refer to the handling instruction manual of the mobile phone for concerning details.
<Call & Disconnect>
Accept Call: When receiving a call, push the HOOK button on front panel of the AKD4679-C
CALL Setup: Push the HOOK button on front panel of the AKD4679-C after making a call by mobile phone.
Disconnect: Push the HOOK button on front panel
<Note>
The internal Bluetooth module can register three mobile phones maximum. The fourth mobile phone can not be
registered when it already has three registered mobile phones. In this case, all registered mobiles should be
cancelled once to register the fourth mobile. The internal Bluetooth module can be initialized by pressing the
HOOK button and BT-RST button in front panel of the AKD4679-C for more than five seconds to cancel registered
mobiles.
c. External PORT
Control: External ( customer system)
Master: External Slave: AK4679
Path: External → AK4679 → SPK-L / RCP/RCN / LineOUT / HP
(Depend on Resister setting)
Lin1/ Rin1(MIC1) , Lin2/Rin2 (MIC2) → AK4679 → External
Mini
Jack
HP
Mini
Jack
Lin2/Rin2
Mini
Jack
Lin1/Rin1
LineOUT
Mini
Jack
Mini
Jack
SPK-L
Mini
Jack
RCP/RCN
Bluetooth
9V IN
AK4679
Regulator
1.2V 1.8V 3.3V 5.0V
4556_LOUT
Mini
Jack
4556_LIN
Mini
Jack
AK4556
CTRL
PORT (10pin)
MONITOR
PORT (10pin)
DIGITAL I/F
PORT (24pin)
Figure 6. Use block in (1)-c
S2 S3 S4 S6 S7 (*) S8 (*) S9 (*)
EXT 4.096 SYNC3 4556 EXT or LOW EXT or LOW
DSP-I2C or
DSP-SPI
* Depend on customer system
Table.8 Toggle SW Setting
[AKD4679-C]
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(2) Music Playback
Control: PC (AKM Control Box)
Master: AK4556 Slave: AK4679
Path: 4556_LIN → AK4556 → AK4679 → SPK-L / RCP/RCN / LineOUT / HP
(Depend on Resister setting)
Lin1/ Rin1(MIC1) , Lin2/Rin2 (MIC2) →AK4679 →AK4556 → 4556_LOUT
SYNC
BICK
SDI
SDO
Mini
Jack
HP
Mini
Jack
Lin2/Rin2
Mini
Jack
Lin1/Rin1
LineOUT
Mini
Jack
Mini
Jack
SPK-L
Mini
Jack
RCP/RCN
Bluetooth
9V IN
AK4679
Regulator
1.2V 1.8V 3.3V 5.0V
4556_LOUT
Mini
Jack
4556_LIN
Mini
Jack
AK4556
CTRL
PORT (10pin)
MONITOR
PORT (10pin)
DIGITAL I/F
PORT (24pin)
I2C
Figure 7. Use block in (2)
AK4556 Mode SW1 Name Fs=48kHz
Master Mode
(normal speed)
I2S
1
CKS0
H
2 CKS1 H
3
CKS2
H
4 CKS3 H
Table 9. AK4556 Setting
S2 S3 S4 S6 S7 S8 S9
BT/4556 11.2896 SYNC3 4556 LOW LOW DSP-I2C
Table 10. Toggle SW Setting
[AKD4679-C]
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CONTROL SOFTWARE MANUAL
■ Setup of the Evaluation Board and Control Software
(1) Power the AKD4679-C evaluation board on and connect it with a USB control box.
(2) Connect the USB control box to a PC with a USB cable.
The USB control box will be recognized as HID (Human Interface Device). When it can not be recognized
correctly (e.g., unknown device is connected), please push reset button [yellow] on the USB control box.
(3) Install AK4679-C.exe to the PC. Then ready to evaluate.
The start-up image of control software is as below.
Figure 8. Start-up Image of Control Software
When the connection of PC with the USB control box is removed, it is required to restart the control software.
[AKD4679-C]
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■ Resister setting of CODEC and DSP
(1) Push the Script Tab.
(2) Push the “refer” button and select the Program file. (Ex.script_8k.txt)
Figure 9. Setting Image of Control Software
(1)
(2)
[AKD4679-C]
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■ Download the DSP Program
(1) Push the “refer” button and select the Program file. (Ex. AtoA.obj)
(2) If necessary, select the CRAM file in the same way.
(3) After select files, push the “Write” button for Download.
(4) Push the DSPRSTN to release the DSP reset condition.
Figure 10. Download Image of Control Software
After loading the script file, please
check the resister by push the
“Read” button.
(１)
(２)
(3)
(4)
[AKD4679-C]
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REVISION HISTORY
IMPORTANT NOTICE
These products and their specifications are subject to change without notice.
When you consider any use or application of these products, please make inquiries the sales office of Asahi Kasei
Microdevices Corporation (AKM) or authorized distributors as to current status of the products.
Descriptions of external circuits, application circuits, software and other related information contained in this
document are provided only to illustrate the operation and application examples of the semiconductor products. You
are fully responsible for the incorporation of these external circuits, application circuits, software and other related
information in the design of your equipments. AKM assumes no responsibility for any losses incurred by you or third
parties arising from the use of these information herein. AKM assumes no liability for infringement of any patent,
intellectual property, or other rights in the application or use of such information contained herein.
Any export of these products, or devices or systems containing them, may require an export license or other official
approval under the law and regulations of the country of export pertaining to customs and tariffs, currency exchange,
or strategic materials.
AKM products are neither intended nor authorized for use as critical components
Note1)
in any safety, life support, or
other hazard related device or system
Note2)
, and AKM assumes no responsibility for such use, except for the use
approved with the express written consent by Representative Director of AKM. As used here:
Note1) A critical component is one whose failure to function or perform may reasonably be expected to result,
whether directly or indirectly, in the loss of the safety or effectiveness of the device or system containing it, and
which must therefore meet very high standards of performance and reliability.
Note2) A hazard related device or system is one designed or intended for life support or maintenance of safety
or for applications in medicine, aerospace, nuclear energy, or other fields, in which its failure to function or
perform may reasonably be expected to result in loss of life or in significant injury or damage to person or
property.
It is the responsibility of the buyer or distributor of AKM products, who distributes, disposes of, or otherwise places
the product with a third party, to notify such third party in advance of the above content and conditions, and the buyer
or distributor agrees to assume any and all responsibility and liability for and hold AKM harmless from any and all
claims arising from the use of said product in the absence of such notification.
Date
(yy/mm/dd)
Manual
Revision
Board
Revision
Reason Page Contents
11/08/26 KM108800 0 First edition
11/09/09 KM108801 1 Change p.2,3 5.0V-OUT (JP8) not use
11/11/02 KM108802 1 Change p.10-12 Control Software update
Change p.13,14 Delete
Addition Board circuit and pattern
17/05/29 KM108803 2 Change Board Rev Up (Rev.1 -> Rev.2)
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
LIN2
RIN1
VSS
VSS
Title
Size Document Number Rev
Date: Sheet
of
AK4679 0
AKD4679-C-SUB
A3
11Friday, August 05, 2011
Title
Size Document Number Rev
Date: Sheet of
AK4679 0
AKD4679-C-SUB
A3
11Friday, August 05, 2011
Title
Size Document Number Rev
Date: Sheet of
AK4679 0
AKD4679-C-SUB
A3
11Friday, August 05, 2011
C114
2.2u
C103
1u
CN104
12pin
37
38
39
40
41
42
43
44
45
46
47
48
+
C105
10u
+
C120
10u
+
C115
10u
C109
2.2n
R100
2.2k
TP105
SCLA
C102
1u
TP102
SYNC1
C104
0.1u
JP1 MP2-SEL
C101
1u
CN101
12pin
1
2
3
4
5
6
7
8
9
10
11
12
C100
1u
TP101
BICK1
TP108
SI-CAD1
C111
0.1u
TP110
CSN-SCLE
R102
1k
+
C122
10u
C106
1u
+
C108
10u
C121
0.1u
CN102
12pin
13
14
15
16
17
18
19
20
21
22
23
24
+
C118
10u
TP111
GP0
C117
0.1u
R101
2.2k
C119
0.1u
C113
2.2u
U100
AK4679
TVDDA
J6
VSS2
J7
SDTI
J4
SDTO
H6
BICK
J5
BCLK1
F6
SYNC1
G5
SDOUT1
H1
SCLA
G6
SDAA
H7
DVDD
E1
BCLK2
F2
SYNC2
D6
SDIN2
D3
SDOUT2
C4
SPN
A2
VSS3
B2
SPP
B1
SVDD
A3
RCP
A4
RCN
B4
SPFIL
C1
CNB
J9
CPB
J8
VEE
G8
CNA
G9
CPA
H8
VCOM
A7
ROUT
B6
SDIN4
C3
HPR
E9
HPL
E8
PVDD
F9
AVDD
A6
VSS1
A8
RIN4
E7
LIN4
F7
RIN3
D8
LIN3
D9
RIN2
B9
LIN2
A9
MPWR2
B5
MPWR1
A5
RIN1
C8
LIN1
C9
PDNA
G7
LRCK
H5
SDIN1
F5
MCKI
J3
VSS3
B3
VEE
F8
SDTOB
H4
SYNCB
H3
BICKB
H2
SDTIB
J1
SDTIA
E2
BCLKA
G2
SYNCA
G4
SDTOA
J2
SDOUT3_GPO
F4
JX1_SYNC3
D5
JX0_BCLK3
F3
SDIN3
E3
I2CE
C2
SCLK_CAD0
C7
SI_CAD1
C6
LOUT
B7
SDOUT4_GP1
D2
CSN_SCLE
B8
SO_SDAE
C5
STO_RDY
G3
TVDDE
D1
VSS4
F1
VDDE
G1
PDNE
D7
TEST
E4
SVDD
A1
VSS5
H9
TP106
SDAA
+
C110
10u
TP112
GP1
TP104
SDOUT1
C112
2.2u
C116
0.1u
CN103
12pin
25
26
27
28
29
30
31
32
33
34
35
36
TP107
SO-SDAE
JP2
IN1-
JP3
IN2-
R103
1k
TP109
SCLK-CAD0
C107
0.1u
R104
1k
TP103
SDIN1
- 14-
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
1.8V
3.3V
CONTROL
2-3:PUSH
2-1:Not PUSH
BT-RESET
HOOK
1:"BT-4556"
3:"uP"
1:"DSP-I2C"
3:"DSP-SPI"
1-4:"11.2896MHz"
3-6:"4.096MHz"
1-4:"JX 1-0"
3-6:"SYNC3-BCLK3"
SCL
SDA
SCL SDA
SCLE-CSN
SDAE-SO
CAD1-SI
CAD0-SCLK
SDAE-SO CAD1-SI CAD0-SCLK SCLE-CSN
VSS
VSS
VSS
VSS
VSS
VDD3.3
DVDD
TVDD
AVDD
PVDD
SVDD
VDD1.2
D3V
D3V
D3V
VDD3.3
D3V
TVDDD3V
D3V
D3V
D3V
TVDD
PVDD
VDD1.2 DVDD TVDD
TVDD
D3V
D3V
TVDD D3V
D3V TVDD
D3V
TVDD
D3V
D3V
D3V TVDD
AVDD
SVDD
TVDD
Title
Size Document Number Rev
Date: Sheet of
MAIN 2
AKD4679-B
A1
1 1Thursday, April 06, 2017
Title
Size Document Number Rev
Date: Sheet of
MAIN 2
AKD4679-B
A1
1 1Thursday, April 06, 2017
Title
Size Document Number Rev
Date: Sheet of
MAIN 2
AKD4679-B
A1
1 1Thursday, April 06, 2017
S2
TOGLE
2
1
3
R57
20k
R15
220
R33
51
CN2
12pin
13
14
15
16
17
18
19
20
21
22
23
24
C28 0.1uF
1 2
R59
51
R65
10k
R40
51
C31
0.1u
D2
LEAD RED LED
12
R12
5.1
C41
0.1u
C4
0.1u
C9
0.1uF
S6
TOGLE
2
1
3
S9
２極双投スライド
2
1
3
5
4
6
C24
0.1uF
C43
0.1u
T2
TA48033BF
IN OUT
GND
SW1
SW DIP-4
S5
PUSH
2
1
3
J2
LIN2/RIN2
1
2
3
R25
10k
R38
51
R13
1k
R29 51
+
C6
10uF
+
C11
100u
REG2
LM1117-5V
OUT
2
GND
3
IN
1
R10
51
C40
0.01uF
S3
２極双投スライド
2
1
3
5
4
6
J1
LIN1/RIN1
1
2
3
R22
15
R8
51
+
C3
100u
C34
0.1u
R44
51
C20
0.1u
+
C12
10uF
R27 51
R55
51
R14
220
C36
1u
REG1
XC6210B-1.2
IN
1
CE
3
OUT
5
NC
4
GND
2
C18
0.1u
C33
0.1u
J7 MONITOR
2
4
6
8
10
1
3
5
7
9
C5
0.1u
R6
51
C39
0.01uF
J6
HP
1
2
3
U4
74AVC4T245
1A1
4
1A2
5
2A2
7
1OE
15
1B1
13
1B2
12
2B1
11
2B2
10
GND
9
2A1
6
1DIR
2
VCCB
16
VCCA
1
GND
8
2DIR
3
2OE
14
+
C16
10u
R46
20k
R47
20k
JP6
9V-Header
1
2
C1
0.1u
R19
1k
R18
10k
R35
51
C15 1.0u
U5
74AVC4T245
1A1
4
1A2
5
2A2
7
1OE
15
1B1
13
1B2
12
2B1
11
2B2
10
GND
9
2A1
6
1DIR
2
VCCB
16
VCCA
1
GND
8
2DIR
3
2OE
14
SW2
JX 0-1
R21
1.5k
JP8
5V-Output
1
2
R52
51
R42
51
R43
51
R4 220
R63
1k
J4
RCP/N
1
2
3
L1
10u
1 2
R23
15
C30 1.0u
S8
4極双投スライド
2
1
3
5
4
6
7
9
8
10
12
11
R2
0
TP1
DVSS
R64
0
R17
20k
C29 1.0u
U10
PCA9517
GND
4
VCCA
1
SCLA
2
SDAA
3
SDAB
6
SCLB
7
VCCB
8
EN
5
J9
4556_LOUT
1
2
3
C38
0.1u
C35
1u
C2
0.1u
J10
Bluetooth connector
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
R56
20k
+
C26
10uF
S7
4極双投スライド
2
1
3
5
4
6
7
9
8
10
12
11
R39
51
C27
0.1u
+
C23
10uF
CN3
12pin
25
26
27
28
29
30
31
32
33
34
35
36
R31 51
C7
1.0uF
U3
SN74CBTLV3257
S
1
1B1
2
1B2
3
1A
4
2B1
5
2B2
6
2A
7
GND
8
VCC
16
OE
15
4B1
14
4B2
13
4A
12
3B1
11
3B2
10
3A
9
C25
0.1uF
R11
10K
R60
0
T1
TA48018BF
IN OUT
GND
T3
TA48033BF
IN OUT
GND
R37
51
R41
470
+
C8
10uF
J11
SPKOUT
1
2
3
R9
51
R62
1k
C37
0.1u
U8
SN74CBTLV3257
S
1
1B1
2
1B2
3
1A
4
2B1
5
2B2
6
2A
7
GND
8
VCC
16
OE
15
4B1
14
4B2
13
4A
12
3B1
11
3B2
10
3A
9
U11
74lvc1t45-ep
Vcca
1
GND
2
A
3
Vccb
6
DIR
5
B
4
JP3
Stereo
C14 1.0u
C21
0.1u
R28 51
R7
51
U9
74lvc1t45-ep
Vcca
1
GND
2
A
3
Vccb
6
DIR
5
B
4
R36
10k
R50
51
JP1
9V-PlugIn
1
2
R16
20k
R5 220
R20
10k
R34
51
U7
DSO221SRAC 4.096MHz
ST
1
GND
2
OUT
3
VCC
4
+
C19
10u
CN4
12pin
37
38
39
40
41
42
43
44
45
46
47
48
R26 51
R54
51
C32
0.1u
R3
5.1
C13
0.22u
RP1
R-PACK4R
4
3
2
1
J3
LineOUT
1
2
3
C22
0.1u
R1
0
R58
51
+
C17
2.2u
R48
20k
R51
51
J8
4556_LIN
1
2
3
U1
AK4556
RIN
1
LIN
2
VSS
3
VA
4
CKS1
10
CKS0
9
VD
5
DEM0
6
DEM1
7
SDTO
8
SDTI
13
LRCK
14
MCLK
15
BCLK
16
PDN
17
VCOM
18
LOUT
19
ROUT
20
CKS2
11
CKS3
12
R45
20k
SW3
CAD 0-1
R24
1.5k
CN1
12pin
1
2
3
4
5
6
7
8
9
10
11
12
R53
51
S4
２極双投スライド
2
1
3
5
4
6
R32
51
J5
SPKOUT
1
2
3
TVDD-SEL
JP2
R61
1k
U6
DSO221SRAC 11.2896MHz
ST
1
GND
2
OUT
3
VCC
4
+
C42
100u
D1
LEAD BLUE LED
1 2
JP5
HEADER 5X2
1 2
3 4
5 6
7 8
9 10
S1
PUSH
2
1
3
R30
470
JP4
IN1
R49
10k
JP9
GND
C10
0.22u
JP10
IN2
JP7
Digital IF
1
3
5
7
9
11
13
15
17
19
10
12
14
16
18
20
22
2423
21
2
4
6
8
CKS0
CKS1
CKS2
CKS3
PC-RESET
PC-SCK/SCL
PC-XCS/SDA
77xx-SDO-SPDIF
77xx-SDO-LED77xx-LRCKO
77xx-BICKO
77xx-EEST
BT-SDO
BT-LRCK
BT-LED
BT-BICK
BT-HOOK
BT-RESET
BT-SDI
BT-SDO
4556-SDO
BCLK1
SYNC1
SDOUT1
SDIN1
SDOUT3-GP0
BCLK3/JX0
SYNC3/JX1
SDIN3
SDOUT4/GP1
D3V
TVDD
PORT3-BICK
PORT3-SYNC
PORT3-SDIN
PORT3-SDOUT
uP-BCLK
uP-LRCK
PORTB-BICK
PORTB-SYNC
PORTB-SDTI
PORTB-SDTO
uP-CSN
uP-SCLK
uP-SI
uP-SO
uP-SCL
uP-SDA
SDTOB
SYNCB
SDTIB
BICKB
STO-RDY
PDNE
SDAA
PDNA
SO-SDAE
SI-CAD1
SCLK-CAD0
CSN-SCLE
DVSS
SYNC3
JX1
JX0
SCLA
BCLK3
uP-PDN
PORT1-BICK
PORT1-SYNC
PORT1-SDIN
PORT1-SDOUT
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AKM AK4679EG is a 24-bit stereo CODEC with Microphone/ Receiver/ Headphone/ Speaker/ Line amplifier as well as HF/Audio DSP. The device finds application in 2MIC Noise cancellation and Echo cancellation systems. It can also be used in Bluetooth applications and provides for external PORT connection. The device has been designed to enable evaluation of the 2MIC-NC and EC system by just connecting to the target product. USB connection is adopted for control interface, enabling to develop DSP codes with a PC. It comes with a USB Control Box and Control Software.
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