AK4642EN

ASAHI KASEI
[AKD4642EN-B]
AKD4642EN-B
AK4642EN Evaluation board Rev.0
GENERAL DESCRIPTION
AKD4642EN-B is an evaluation board for the AK4642EN, 16bit CODEC with built-in MIC/HP/SPK
amplifier. The AKD4642EN can evaluate A/D converter and D/A converter separately in addition to
loop-back mode (A/D → D/A). The AKD4642EN also has the digital audio interface and can achieve the
interface with digital audio systems via opt-connector.
„ Ordering guide
AKD4642EN-B
--- Evaluation board for AK4642EN
(Cable for connecting with printer port of IBM-AT compatible PC and control
software are packed with this. This control software does not operate on Windows
NT.)
FUNCTION
• DIT/DIR with optical input/output
• 10pin Header for serial control mode
5V
Regulator
GND
3.3V
Control Data
LIN1/
RIN1
10pin Header
BEEP
LIN2/
RIN2
DSP
AK4642EN
10pin Header
HP
LOUT/
ROUT
AK4114
Opt In
Opt Out
Figure 1. AKD4642EN Block Diagram
* Circuit diagram and PCB layout are attached at the end of this manual
<KM079300>
2005/06
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ASAHI KASEI
[AKD4642EN-B]
1. Evaluation Board Manual
„ Operation sequence
1) Set up the power supply lines.
[VCC]
(red)
= 5.0V
[AGND] (black)
= 0V
[DGND] (black)
= 0V
: for logic
: for analog ground
: for logic ground
Each supply line should be distributed from the power supply unit.
3.3V is supplied to AK4642EN and AK4114 via the regulator.
2) Set up the evaluation mode, jumper pins. (See the followings.)
3) Power on.
The AK4642EN and AK4114 should be reset once bringing SW1 “L” upon power-up.
„ Evaluation mode
(1) Slave mode
(1-1) Evaluation of Recording block (MIC, ADC) using DIT of AK4114
(1-2) Evaluation of Playback block (HP, SPK, LOUT) using DIR of AK4114
(1-3) Evaluation of Loop-back using AK4114 <Default>
(1-4) All interface signals including master clock are fed externally.
The AK4114’s audio interface format is fixed to I2S compatible.
(1-1) Evaluation of Loop-back using DIT of AK4114
PORT2 (DIT) and X1 (X’tal) are used. DIT generates audio bi-phase signal from received data and which is
output through optical connector (TOTX141). Nothing should be connected to PORT1 (DIR) and PORT3
(DSP).
JP6
BICK2
JP7
LRCK2
JP8
LRCK
JP9
JP10
MCLK
BICK
JP11
SDTI
DIR
ADC
(1-2) Evaluation of Playback block using DIR of AK4114
PORT1 (DIR) is used. Nothing should be connected to PORT3 (DSP).
JP6
BICK2
JP7
LRCK2
JP8
LRCK
JP9
JP10
MCLK
BICK
JP11
SDTI
DIR
ADC
The AK4114 operates at fs of 32kHz or more. If the fs is slower than 32kHz,
any other evaluation mode without using DIR should be used.
<KM079300>
2005/06
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ASAHI KASEI
[AKD4642EN-B]
(1-3) Evaluation of Loop-back using AK4114 <Default>
X’tal oscillator (X1) is used. Nothing should be connected to PORT1 (DIR) and PORT3 (DSP).
JP6
BICK2
JP7
LRCK2
JP8
LRCK
JP9
JP10
MCLK
BICK
JP11
SDTI
DIR
ADC
The AK4114 operates at fs of 32kHz or more. If the fs is slower than 32kHz,
any other evaluation mode without using DIR should be used.
(1-4) All interface signals including master clock are fed externally.
PORT3 (DSP) is used. Nothing should be connected to PORT1 (DIR).
JP6
BICK2
JP7
LRCK2
JP8
LRCK
JP9
JP10
MCLK
BICK
JP11
SDTI
DIR
ADC
(2) Master mode
(2-1) Evaluation of Recording block using MCLK of AK4114
(2-2) Master clock is fed externally
(2-1) Evaluation of Loop-back using MCLK of AK4114
X’tal oscillator (X1) is used. Nothing should be connected to PORT1 (DIR) and PORT3 (DSP). It can be
evaluated at internal loop-back mode (LOOP bit = “1”). It is possible to evaluate at various sampling frequencies
using built-in AK4642EN’s PLL.
JP6
BICK2
JP7
LRCK2
JP8
LRCK
JP9
JP10
MCLK
BICK
JP11
SDTI
DIR
ADC
(2-2) Master clock is fed externally
PORT3 (DSP) is used and MCLK is fed from PORT3. Nothing should be connected to PORT1 (DIR). It can be
evaluated at internal loop-back mode (LOOP bit = “1”). It is possible to evaluate at various sampling frequencies
using built-in AK4642EN’s PLL.
JP6
BICK2
JP7
LRCK2
JP8
LRCK
JP9
JP10
MCLK
BICK
JP11
SDTI
DIR
<KM079300>
ADC
2005/06
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ASAHI KASEI
[AKD4642EN-B]
„ Other jumper pins set up
1. JP1 (GND) : Connection between AGND and DGND.
OPEN : Both grounds are separated on board.
SHORT : Both grounds are connected on board. <Default>
2. JP2,JP3 : Connection of mic power.
OPEN: Mic power is not connected.
SHORT : Mic power is connected. <Default>
3. JP4,JP5 : Select speaker type.
OPEN : Piezo speaker
SHORT : Dynamic speaker <Default>
4. JP12 : Select speaker type.
Dynamic: Dynamic speaker <Default>
Piezo: Piezo speaker
„ The function of the toggle SW
Upper-side is “H” and lower side is “L”.
[SW1] (PDN): Power down of AK4642EN and AK4114. Keep “H” during normal operation.
„ Indication for LED
[LED1] (ERF): Monitor INT0 pin of the AK4114. LED turns on when some error has occurred to AK4114.
<KM079300>
2005/06
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ASAHI KASEI
[AKD4642EN-B]
„ Serial Control
The AK4642EN can be controlled via the printer port (parallel port) of IBM-AT compatible PC. Connect PORT4
(CTRL) with PC by 10 wire flat cable packed with the AKD4642EN. When I2C bus mode is used, PORT4 should be
directly connected to the I2C bus on the system.
CSN
SCL/CCLK
SDA/CDTI
Connect
PC
AKD4642EN-B
10 wire
flat cable
10pin
Connector
10pin Header
Figure 2. Connect of 10 wire flat cable
(1) 3-wire Serial Control Mode <Default>
The jumper pins should be set to the following.
JP14
CAD0
JP15
SDA
JP13
I2C_SEL
I2C
3-wire
(2) I2C-bus Control Mode
The jumper pins should be set to the following.
(2-1) In case of using CAD0=0 (device address bits).
JP14
CAD0
JP15
SDA
JP13
I2C_SEL
I2C
3-wire
(2-2) In case of using CAD0=1 (device address bits).
JP14
CAD0
JP15
SDA
JP13
I2C_SEL
I2C
<KM079300>
3-wire
2005/06
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ASAHI KASEI
[AKD4642EN-B]
„ Analog Input/Output Circuits
(1) Input Circuits
1. BEEP Input Circuit
J2
BEEP
C14
1u
4
R15
20k
BEEP
+
6
3
Figure 3. BEEP Input Circuit
2. LINE1 Input Circuit
R1
2.2k
MPWR
R2
2.2k
J5
LIN1/RIN1
4
JP3
RIN1
C3
1u
+
6
3
RIN1
C2
1u
+
JP2
LIN1
LIN1
Figure 4. LINE1 Input Circuit
3. LINE2 Input Circuit
C18
1u
+
J3
LIN2/RIN2
LIN2
4
6
3
C19
1u
+
RIN2
Figure 5. LINE2 Input Circuit
<KM079300>
2005/06
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ASAHI KASEI
[AKD4642EN-B]
(2) Output Circuits
1. Headphone-amp Output Circuit
C13
47u
4
+
HPL
R14
6.8
+
6
3
J1
HP
HPR
C15
47u
C16
0.22u
C17
0.22u
R17
10
R18
10
R16
6.8
Figure 6. Headphone-amp Output Circuit
2. STEREO LINE Output Circuit
C20
1u
+
R21
220
LOUT
J6
LOUT/ROUT
6
3
R22
20k
C21
1u
4
+
R23
220
ROUT
R24
20k
Figure 7. STEREO LINE Output Circuit
<KM079300>
2005/06
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ASAHI KASEI
[AKD4642EN-B]
3. SPEAKER Output Circuit
R19
10
J4
SPK-JACK
SPP
SPK1
020S16
CN1
D1
Piezo(EXT)
Dynamic
P
2
SPP
Dynamic
Piezo(EXT)
D2
1
SPN
N
SPN
R20
10
Figure 8. SPEAKER Output Circuit
∗ AKM assumes no responsibility for the trouble when using the above circuit examples.
<KM079300>
2005/06
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ASAHI KASEI
[AKD4642EN-B]
2. Control Software Manual
„ Set-up of evaluation board and control software
1. Set up the AKD4642EN-B according to previous term.
2. Connect IBM-AT compatible PC with AKD4642EN-B by 10-line type flat cable (packed with AKD4642EN-B).
Take care of the direction of 10pin header. (Please install the driver in the CD-ROM when this control software is
used on Windows 2000/XP. Please refer “Installation Manual of Control Software Driver by AKM device control
software”. In case of Windows95/98/ME, this installation is not needed. This control software does not operate on
Windows NT.)
3. Insert the CD-ROM labeled “AKD4642EN-B Evaluation Kit” into the CD-ROM drive.
4. Access the CD-ROM drive and double-click the icon of “akd4642.exe” to set up the control program.
5. Then please evaluate according to the follows.
„ Operation flow
Keep the following flow.
1. Set up the control program according to explanation above.
2. Click “Port Reset” button.
3. Click “Write default” button
„ Explanation of each buttons
1. [Port Reset] :
2. [Write default] :
3. [All Write] :
4. [Function1] :
5. [Function2] :
6. [Function3] :
7. [Function4] :
8. [Function5]:
9. [SAVE] :
10. [OPEN] :
11. [Write] :
Set up the USB interface board (AKDUSBIF-A) when using the board.
Initialize the register of the AK4642EN.
Write all registers that is currently displayed.
Dialog to write data by keyboard operation.
Dialog to write data by keyboard operation.
The sequence of register setting can be set and executed.
The sequence that is created on [Function3] can be assigned to buttons and executed.
The register setting that is created by [SAVE] function on main window can be assigned to
buttons and executed.
Save the current register setting.
Write the saved values to all register.
Dialog to write data by mouse operation.
„ Indication of data
Input data is indicated on the register map. Red letter indicates “H” or “1” and blue one indicates “L” or “0”. Blank is the
part that is not defined in the datasheet.
<KM079300>
2005/06
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ASAHI KASEI
[AKD4642EN-B]
„ Explanation of each dialog
1. [Write Dialog]: Dialog to write data by mouse operation
There are dialogs corresponding to each register.
Click the [Write] button corresponding to each register to set up the dialog. If you check the check box, data
becomes “H” or “1”. If not, “L” or “0”.
If you want to write the input data to the AK4642EN, click [OK] button. If not, click [Cancel] button.
2. [Function1 Dialog] : Dialog to write data by keyboard operation
Address Box:
Data Box:
Input registers address in 2 figures of hexadecimal.
Input registers data in 2 figures of hexadecimal.
If you want to write the input data to the AK4642EN, click [OK] button. If not, click [Cancel] button.
3. [Function2 Dialog] : Dialog to evaluate DATT
There are dialogs corresponding to register of 09h, 0Ah, 0Ch, and 0Dh.
Address Box:
Input registers address in 2 figures of hexadecimal.
Start Data Box:
Input starts data in 2 figures of hexadecimal.
End Data Box:
Input end data in 2 figures of hexadecimal.
Interval Box:
Data is written to the AK4642EN by this interval.
Step Box:
Data changes by this step.
Mode Select Box:
If you check this check box, data reaches end data, and returns to start data.
[Example] Start Data = 00, End Data = 09
Data flow: 00 01 02 03 04 05 06 07 08 09 09 08 07 06 05 04 03 02 01 00
If you do not check this check box, data reaches end data, but does not return to start data.
[Example] Start Data = 00, End Data = 09
Data flow: 00 01 02 03 04 05 06 07 08 09
If you want to write the input data to the AK4642EN, click [OK] button. If not, click [Cancel] button.
<KM079300>
2005/06
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ASAHI KASEI
[AKD4642EN-B]
4. [SAVE] and [OPEN]
4-1. [SAVE]
All of current register setting values displayed on the main window are saved to the file. The extension of file name is
“akr”.
<Operation flow>
(1) Click [SAVE] Button.
(2) Set the file name and click [SAVE] Button. The extension of file name is “akr”.
4-2. [OPEN]
The register setting values saved by [SAVE] are written to the AK4642EN. The file type is the same as [SAVE].
<Operation flow>
(1) Click [OPEN] Button.
(2) Select the file (*.akr) and Click [OPEN] Button.
<KM079300>
2005/06
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ASAHI KASEI
[AKD4642EN-B]
5. [Function3 Dialog]
The sequence of register setting can be set and executed.
(1) Click [F3] Button.
(2) Set the control sequence.
Set the address, Data and Interval time. Set “-1” to the address of the step where the sequence should be paused.
(3) Click [START] button. Then this sequence is executed.
The sequence is paused at the step of Interval="-1". Click [START] button, the sequence restarts from the paused step.
This sequence can be saved and opened by [SAVE] and [OPEN] button on the Function3 window. The extension of file
name is “aks”.
Figure 9. Window of [F3]
<KM079300>
2005/06
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ASAHI KASEI
[AKD4642EN-B]
6. [Function4 Dialog]
The sequence file (*.aks) saved by [Function3] can be listed up to 10 files, assigned to buttons and then executed.
When [F4] button is clicked, the window as shown in Figure 10 opens.
Figure 10. [F4] window
<KM079300>
2005/06
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ASAHI KASEI
[AKD4642EN-B]
6-1. [OPEN] buttons on left side and [START] buttons
(1) Click [OPEN] button and select the sequence file (*.aks) saved by [Function3].
The sequence file name is displayed as shown in Figure 11. ( In case that the selected sequence file name is
“DAC_Stereo_ON.aks”)
Figure 11. [F4] window(2)
(2) Click [START] button, then the sequence is executed.
6-2. [SAVE] and [OPEN] buttons on right side
[SAVE] : The name assign of sequence file displayed on [Function4] window can be saved to the file. The file name
is “*.ak4”.
[OPEN] : The name assign of sequence file(*.ak4) saved by [SAVE] is loaded.
6-3. Note
(1) This function doesn't support the pause function of sequence function.
(2) All files used by [SAVE] and [OPEN] function on right side need to be in the same folder.
(3) When the sequence is changed in [Function3], the sequence file (*.aks) should be loaded again in order to reflect the
change.
<KM079300>
2005/06
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ASAHI KASEI
[AKD4642EN-B]
7. [Function5 Dialog]
The register setting file(*.akr) saved by [SAVE] function on main window can be listed up to 10 files, assigned to
buttons and then executed. When [F5] button is clicked, the window as shown in Figure 12 opens.
Figure 12. [F5] window
7-1. [OPEN] buttons on left side and [WRITE] button
(1) Click [OPEN] button and select the register setting file (*.akr).
The register setting file name is displayed as shown in Figure 13. (In case that the selected file name is
“DAC_Output.akr”)
(2) Click [WRITE] button, then the register setting is executed.
<KM079300>
2005/06
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ASAHI KASEI
[AKD4642EN-B]
Figure 13. [F5] windows(2)
7-2. [SAVE] and [OPEN] buttons on right side
[SAVE] : The name assign of register setting file displayed on [Function5] window can be saved to the file. The file
name is “*.ak5”.
[OPEN] : The name assign of register setting file(*.ak5) saved by [SAVE] is loaded.
7-3. Note
(1) All files used by [SAVE] and [OPEN] function on right side need to be in the same folder.
(2) When the register setting is changed by [SAVE] Button on the main window, the register setting file (*.akr) should be
loaded again in order to reflect the change.
<KM079300>
2005/06
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ASAHI KASEI
[AKD4642EN-B]
MEASUREMENT RESULTS
1. EXT mode (slave mode)
[Measurement condition]
• Measurement unit: Audio Precision, System two
• BICK: 64fs
• Bit: 16bit
• Measurement Frequency: 20∼ 20kHz
• Power Supply: AVDD=DVDD=HVDD=3.3V
• Temperature: Room
• Input Frequency: 1kHz
• Sampling Frequency: 44.1kHz
[Measurement Results]
2. ADC (LIN2/RIN2) characteristics (IVOL=0dB, ALC1 = OFF, LIN2/RIN2 Æ ADC Æ IVOL)
L[dB]
MGAIN Bit
R[dB]
00
01
00
01
THD+N
20kHzLPF (-1dB)
87.3
82.9
87.1
82.7
DR
20kHzLPF + A-weighted
94.9
86.3
94.9
86.1
S/N
20kHzLPF + A-weighted
95.0
86.2
95.1
86.0
3.DAC (LOUT/ROUT) characteristics (RL=10kΩ, DAC Æ LOUT/ROUT)
L[dB]
R[dB]
THD+N
20kHzLPF (-3dB)
87.5
87.6
S/N
20kHzLPF + A-weighted
92.0
93.4
<KM079300>
2005/06
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ASAHI KASEI
[AKD4642EN-B]
2. PLOT DATA
2-1.ADC (LIN2/RIN2 Æ ADC) PLOT DATA
AKM
AK4642 THD+N vs. Input Level LIN2/RIN2
09/17/04 10:16:26
+0
-10
-20
-30
-40
-50
d
B
F
S
-60
-70
-80
-90
-100
-110
-120
-130
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
dBr
Figure 14. THD+N vs. Input Level
AKM
AK4642 THD+N vs. fin LIN2/RIN2
09/15/04 18:17:10
+0
-10
-20
-30
-40
-50
d
B
F
S
-60
-70
-80
-90
-100
-110
-120
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 15. THD+N vs. Input Frequency
<KM079300>
2005/06
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ASAHI KASEI
[AKD4642EN-B]
AKM
AK 4642 Linearity LIN 2/RIN2
09 /15 /04 18:06:29
+0
-10
-20
-30
-40
-50
d
B
F
S
-60
-70
-80
-90
-100
-110
-120
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Figure 16. Linearity
AKM
AK4642 Frequency Responce LIN2/RIN2
09/15/04 18:11:16
+5
+4
+3
+2
+1
d
B
F
S
+0
-1
-2
-3
-4
-5
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 17. Frequency Response
<KM079300>
2005/06
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ASAHI KASEI
[AKD4642EN-B]
AKM
AK4642 FFT THD+N LIN2/RIN2
09/17/04 11:32:36
+0
-10
-20
-30
-40
-50
-60
-70
d
B
F
S
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 18. FFT Plot ( Input level=-1.0dBFS)
AKM
AK4642 FFT DR LIN2/RIN2
09/17/04 11:35:18
+0
-10
-20
-30
-40
-50
-60
-70
d
B
F
S
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 19. FFT Plot ( Input level=-60.0dBFS )
<KM079300>
2005/06
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ASAHI KASEI
[AKD4642EN-B]
AKM
AK4642 FFT DR LIN2/RIN2
09/17/04 11:36:17
+0
-10
-20
-30
-40
-50
-60
-70
d
B
F
S
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 20. FFT Plot ( No signal )
AKM
AK 4642 Crosstalk LIN 2/RIN2
09 /15 /04 17:58:45
-10
-20
-30
-40
-50
-60
d
B
-70
-80
-90
-100
-110
-120
-130
-140
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 21. Crosstalk Plot
<KM079300>
2005/06
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ASAHI KASEI
[AKD4642EN-B]
2-2. DAC(DAC Æ LOUT/ROUT) PLOT DATA
AKM
AK4642 THD vs. Input Level LOUT/ROUT
09/21/04 11:04:02
+0
-10
-20
-30
-40
d
B
r
A
-50
-60
-70
-80
-90
-100
-110
-120
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
Figure 22. THD+N vs. Input Level
AKM
AK4642 THD+N vs. fin LOUT/ROUT
09/17/04 10:33:02
+0
-10
-20
-30
-40
d
B
r
A
-50
-60
-70
-80
-90
-100
-110
-120
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 23. THD+N vs. Input Frequency
<KM079300>
2005/06
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ASAHI KASEI
[AKD4642EN-B]
AKM
AK4642 Linearity LOUT/ROUT
09/21/04 11:19:21
+0
-10
-20
-30
-40
d
B
r
A
-50
-60
-70
-80
-90
-100
-110
-120
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
Figure 24. Linearity
AKM
AK4642 Frequency Responce LOUT/ROUT
09/21/04 13:09:12
+3
+2.5
+2
+1.5
+1
d
B
r
A
+0.5
+0
-0.5
-1
-1.5
-2
-2.5
-3
2k
4k
6k
8k
10k
12k
14k
16k
18k
20k
Hz
Figure 25. Frequency Response
<KM079300>
2005/06
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ASAHI KASEI
[AKD4642EN-B]
AKM
AK4642 FFT THD+N LOUT/ROUT
09/21/04 10:51:51
+0
-10
-20
-30
-40
-50
-60
-70
d
B
r
A
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 26. FFT Plot ( Input level=-3dBFS )
AKM
AK4642 FFT DR LOUT/ROUT
09/21/04 10:53:54
+0
-10
-20
-30
-40
-50
-60
-70
d
B
r
A
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 27. FFT Plot ( Input level=-60.0dBFS )
<KM079300>
2005/06
- 24 -
ASAHI KASEI
[AKD4642EN-B]
AKM
AK4642 FFT S/N LOUT/ROUT
09/21/04 10:55:10
+0
-10
-20
-30
-40
-50
-60
-70
d
B
r
A
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 28. FFT Plot ( No signal )
AKM
AK 4642 Crosstalk LOUT /ROUT
09 /15 /04 19:30:36
+0
-10
-20
-30
-40
-50
d
B
-60
-70
-80
-90
-100
-110
-120
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 29. Crosstalk Plot
<KM079300>
2005/06
- 25 -
ASAHI KASEI
[AKD4642EN-B]
Revision History
Date
(YY/MM/DD)
05/06/24
Manual
Revision
KM079300
Board
Revision
0
Reason
Contents
First Edition
IMPORTANT NOTICE
• These products and their specifications are subject to change without notice. Before considering
any use or application, consult the Asahi Kasei Microsystems Co., Ltd. (AKM) sales office or
authorized distributor concerning their current status.
• AKM assumes no liability for infringement of any patent, intellectual property, or other right in the
application or use of any 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 in any safety, life
support, or other hazard related device or system, and AKM assumes no responsibility relating to
any such use, except with the express written consent of the Representative Director of AKM. As
used here:
(a) 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.
(b) 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.
• It is the responsibility of the buyer or distributor of an AKM product who distributes, disposes of, or
otherwise places the product with a third party to notify that 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.
<KM079300>
2005/06
- 26 -
A
B
C
D
E
JP1
GND
DGND
E
ROUT
AGND
T45_B
T45_B
1
DGND
T45_R
1
VCC
1
LOUT
BEEP
RIN2
LIN2
LIN1
RIN1
E
AGND
VCC
+
C1
1u
MPWR
+
REG
+
C6
10u
JP13
I2C_SEL
C10 4.7n
C
25
MUTET
ROUT
26
27
LOUT
RIN2
BEEP
29
30
IN1-
1
MPWR
HPL
24
HPL
2
VCOM
HPR
23
HPR
3
AVSS
HVSS
22
4
AVDD
HVDD
21
C5
0.1u
C7
0.1u
R3
C8
0.1u
4642EN
10k
5
VCOC
6
I2C
7
PDN
+
C4
2.2u
LIN2
32
IN1+
U5
28
D
31
D
C9
10u
JP12
HVDD
PIEZO
VCC
Dynamic
REG
C
SPP
20
SPP
SPN
19
SPN
MCKO
18
TEST2
MCKI
17
MCKI
R4 47k
51
DVSS
16
15
14
BICK
LRCK
13
10
9
DVDD
CSN/CAD0
SDTO
8
12
51
SDTI
R7
CSN
11
PDN
CDTI/SDA
R6
CCLK/SCL
R5
10
C11
0.1u
B
R9
51
R10
51
R11
51
R12
51
B
R13
51
BICK
LRCK
SDTO
SDTI
CDTI
CCLK
+
R8
51
C12
10u
A
A
Title
Size
A3
Date:
A
B
C
D
AKD4642EN-B
Document Number
Rev
AK4642EN
Friday, June 10, 2005
Sheet
E
0
1
of
5
A
B
C
D
C15
47u
+
R16
6.8
6
HPR
C14
1u
6
BEEP
+
4
3
R15
20k
C19
1u
6
E
HPL
C13
47u
J3
LIN2/RIN2
J1
HP
4
3
+
E
J2
BEEP
E
C16
0.22u
C17
0.22u
R17
10
R18
10
R14
6.8
+
RIN2
4
3
D
D
C18
1u
+
LIN2
R1
2.2k
R19
10
MPWR
3
4
SPP
J4
SPK-JACK
6
R2
2.2k
SPK1
D1
A
J5
LIN1/RIN1
C
JP3
RIN1
6
C3
1u
Piezo(EXT)
Dynamic
K
DIODE ZENER
+
RIN1
JP5
SPKP
D2
4
3
A
C2
1u
+
JP2
LIN1
020S16
CN1
K
DIODE ZENER
P
2
C
Dynamic
Piezo(EXT)
1
JP4
SPKN
N
LIN1
SPN
R20
10
C21
1u
R23
220
+
B
B
J6
LOUT/ROUT
6
ROUT
R24
20k
C20
1u
4
3
+
R21
220
LOUT
R22
20k
A
A
Title
Size
A3
Date:
A
B
C
D
AKD4642EN-B
Document Number
Rev
Input/Output
Friday, June 10, 2005
Sheet
E
0
2
of
5
A
B
C
D
E
VCC
REG
1
VCC
L1
47u
T1
TA48033F
GND
OUT
2
1
TORX141
C27
10u
+ C29
10u
C28
0.1u
R25
470
IN
REG
C30
0.1u
C22
47u
+
E
REG
OUT
1
3
+
VCC
C23
0.1u
C24
0.1u
L2
10u
2
PORT1
GND
2
E
D3V
C31
0.47u
C25
0.1u
R26
18k
for 74HC14
1
38
37
U3A
74HC14
INT1
R
AVDD
39
40
VCOM
41
AVSS
42
RX0
43
NC
44
RX1
46
45
TEST1
D
RX2
RX3
NC
48
47
D3V
U2
IPS0
INT0
36
1
D
14
2
7
R27
1k
LED1
K
A
D3V
ERF
D3V
2
NC
OCKS0
35
3
DIF0
OCKS1
34
4
TEST2
CM1
33
5
DIF1
CM0
32
6
NC
PDN
31
R38
47k
R28
47k
AK4114
C
DIF2
8
C
TEST1
C32
5p
XTI
30
IPS1
XTO
29
9
P/SN
DAUX
28
10
XTL0
MCKO2
27
11
XTL1
BICK
26
DIR_BICK
12
VIN
SDTO
25
DIR_SDTO
1
7
4114_PDN
C33
5p
2
X1
11.2896MHz
SDTO
A
IN
VCC
3
2
GND
1
TOTX141
LRCK
24
MCKO1
DIR_LRCK
DIR_MCLK
C36
10u
C37
10u
D3V
PORT2
23
22
DVSS
DVDD
21
C35
0.1u
+
20
VOUT
UOUT
19
COUT
18
BOUT
17
TX1
16
15
14
TVDD
C34
0.1u
+
13
TX0
B
DVSS
B
R29
5.1
REG
A
C38
0.1u
Title
Size
A3
Date:
A
B
C
D
AKD4642EN-B
Document Number
Rev
DIR/DIT
Thursday, June 09, 2005
Sheet
E
0
3
of
5
A
B
C
D
E
U4
11
Y8
A8
9
12
Y7
A7
8
LRCK
13
Y6
A6
7
SDTI
14
Y5
A5
6
15
Y4
A4
5
CCLK
16
Y3
A3
4
CSN
17
Y2
A2
3
PDN
18
Y1
A1
2
10
GND
G2
19
20
VCC
G1
1
MCKI
JP6
BICK2
E
BICK
E
JP7
LRCK2
JP15
SDA
JP8
LRCK
DIR_LRCK
3-wire
CDTI
I2C
D
D
C39
0.1u
D3V
74LVC541
JP9
MCLK
C
REG
PORT4
1
2
3
4
5
10
9
8
7
6
CTRL
R30
10k
R33
10k
R35
10k
R31
R32
R34
470
470
470
C
DIR_MCLK
JP10
BICK
MCLK
BICK
LRCK
SDTI
VCC
DIR_BICK
PORT3
1
2
3
4
5
10
9
8
7
6
DSP
CSN
SCL/CCLK
SDA/CDTI
R36
D3V
10k
JP14
CAD0
ADC
SDTO
B
B
JP11
SDTI
DIR_SDTO
DIR
D3V
K
D3V
R37
10k
U3B
74HC14
A
D3
HSU119
3
5
U3C
74HC14
14
6
7
4114_PDN
1
H
3
L
14
4
7
SW1
PDN
C40
0.1u
A
2
A
Title
Size
A3
Date:
A
B
C
D
AKD4642EN-B
Document Number
Rev
LOGIC
Thursday, June 09, 2005
0
Sheet
E
4
of
5
A
B
C
D
E
E
E
D
D
D3V
U3F
74HC14
13
14
12
7
U3E
74HC14
11
14
10
7
U3D
74HC14
C
9
14
8
7
C
B
B
A
A
Title
Size
A3
Date:
A
B
C
D
AKD4642EN-B
Document Number
Rev
PIN
Monday, June 06, 2005
0
Sheet
E
5
of
5
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