AKM AKD4342-B

ASAHI KASEI
[AKD4342-B]
AKD4342-B
AK4342 Evaluation board Rev.2
GENERAL DESCRIPTION
AKD4342-B is an evaluation board for 24bit DAC with built-in 2Vrms lineout, headphone, and Aux lineout
amplifiers, AK4342. The AKD4342-B has the interface with AKM’s ADC evaluation boards. Therefore, it’s
easy to evaluate the AK4342. The AKD4342-B also has the digital audio interface and can achieve the
interface with digital audio systems via opt-connector.
„ Ordering guide
AKD4342-B
---
Evaluation board for AK4342
(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
• Compatible with 2 types of interface
- Direct interface with AKM’s A/D converter evaluation boards
- On-board AK4113 as DIR which accepts optical input
• 10pin header for serial control interface
AGND
VCC
5V
DGND
REG
3.3V
LIN
AVDD DVDD TVDD
HVDD PVDD
RIN
AK4113
(DIR)
PORT1
Opt In
LOUT
ROUT
PORT2
DSP
AK4342
LAUX
PORT3
uP-I/F
RAUX
HPL
HPR
Figure 1.. AKD4342-B Block Diagram
* Circuit diagram and PCB layout are attached at the end of this manual.
<KM081502>
2006/05
-1-
ASAHI KASEI
[AKD4342-B]
Evaluation Board Manual
„ Operation sequence
1) Set up the power supply lines.
[VCC]
(red)
= 5V
[AGND]
(black)
= 0V
[DGND]
(black)
= 0V
Each supply line should be distributed from the power supply unit.
The power is supplied from VCC jack to the AK4342 via the regulator.
2) Set up the evaluation mode, jumper pins. (See the followings.)
3) Power on.
The AK4342 and AK4113 should be resets once bringing SW1 “L” upon power-up.
„ Evaluation mode
Applicable Evaluation Mode
(1) In case of using DIR (Optical Link) <default>
It is possible to use the initial setting of the audio interface format (24bit MSB justified) to evaluate the
AK4342.
(2) In case of connecting AK4342 with a external DSP
(1) In case of using DIR (Optical Link) <default>
PORT1 is used. DIR generates MCLK, BICK, LRCK and SDATA from the received data through optical
connector (TORX141). Nothing should be connected to PORT2 (DSP).
JP12
DIR_MCLK
JP5
DIR_BICK
JP6
DIR_LRCK
<KM081502>
JP11
DIR_SDTI
2006/05
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ASAHI KASEI
[AKD4342-B]
(2) In case of connecting AK4342 with an external DSP
AKD4342-B can be connected with an external DSP through PORT2 (DSP). MCLK, BICK, LRCK and
SDATA are supplied from DSP.
JP5
DIR_BICK
JP12
DIR_MCLK
JP6
DIR_LRCK
JP11
DIR_SDTI
„ Other jumper pins set up
JP3 (GND): Analog ground and Digital ground.
OPEN
: Separated. <Default>
SHORT : Common. (The connector “DGND” can be open.)
„ The function of the toggle SW
Upper-side is “H” and lower-side is “L”.
[SW1] (DAC/DIR_PDN)
: Resets the AK4342 and AK4113. Keep “H” during normal operation.
„ Indication for LED
[LED1] (INT0) : Monitor INT0 pin of the AK4113.
<KM081502>
2006/05
-3-
ASAHI KASEI
[AKD4342-B]
„ Serial Control
The AK4342-B can be controlled via the printer port (parallel port) of IBM-AT compatible PC. Connect PORT3
(uP-I/F) with PC by 10 wire flat cable packed with the AKD4342-B. The packed control software only supports the
3-wire Serial Control Mode.
CSN
SCL/CCLK
SDA/CDTI
Connect
PC
AKD4342-B
10 wire
flat cable
10pin
Connector
10pin Header
Figure 2. Connection of 10 wire flat cable
(1) 3-wire Serial Control Mode
The jumper pins should be set to the following.
JP7
CAD0
JP10
SDA
JP4
I2C
I2C
3-wire
2
(2) I C-bus Control Mode
The jumper pins should be set to the following.
(2-1) Address bit: CAD0=0
JP7
CAD0
JP10
SDA
JP4
I2C
I2C
3-wire
(2-2) Address Bit: CAD0=1
JP7
CAD0
JP10
SDA
JP4
I2C
I2C
<KM081502>
3-wire
2006/05
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ASAHI KASEI
[AKD4342-B]
„ Input / Output circuits
(1) Input Circuit
LIN/RIN Input circuit
C40
R28
1u
20k
+
RIN
LIN/RIN
6
R27
1u
20k
LIN
+
4
3
C39
J4
Figure 3. LIN/RIN Input circuit
(2) Output Circuit
(2-1) LOUT/ROUT Output circuit
R33
470
ROUT
C41
R34
open
10k
R35
6
470
LROUT
4
3
LOUT
C42
R36
open
10k
J6
Figure 4. LOUT/ROUT Output circuit
<KM081502>
2006/05
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ASAHI KASEI
[AKD4342-B]
(2-2) HPL/HPR Output circuit
HPR
6
HPL
4
3
HP
J5
Figure 5. HPL/HPR Output circuit
(2-3) LAUX/RAUX Output circuit
R37
C43
(short)
+
RAUX
10u
R38
10k
R41
C45
(short)
+
LAUX
10u
R42
LRAUX
6
4
3
J7
10k
Figure 6. LAUX/RAUX Output circuit
* AKM assumes no responsibility for the trouble when using the circuit examples.
<KM081502>
2006/05
-6-
ASAHI KASEI
[AKD4342-B]
Control Software Manual
„ Set-up of evaluation board and control software
1. Set up the AKD4342-B according to previous term.
2. Connect IBM-AT compatible PC with AKD4342-B by 10-line type flat cable (packed with AKD4342-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 “AK4342-B Evaluation Kit” into the CD-ROM drive.
4. Access the CD-ROM drive and double-click the icon of “akd4342-b.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 AK4342.
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.
<KM081502>
2006/05
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ASAHI KASEI
[AKD4342-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 AK4342, 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 AK4342, click [OK] button. If not, click [Cancel] button.
3. [Function2 Dialog] : Dialog to evaluate Volume
There are dialogs corresponding to register of 04h, 05h, 07h, 08h and 09h.
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 AK4342 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 AK4342, click [OK] button. If not, click [Cancel] button.
<KM081502>
2006/05
-8-
ASAHI KASEI
[AKD4342-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 AK4342. The file type is the same as [SAVE].
<Operation flow>
(1) Click [OPEN] Button.
(2) Select the file (*.akr) and Click [OPEN] Button.
<KM081502>
2006/05
-9-
ASAHI KASEI
[AKD4342-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 7. Window of [F3]
<KM081502>
2006/05
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ASAHI KASEI
[AKD4342-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 8 opens.
Figure 8. [F4] window
<KM081502>
2006/05
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ASAHI KASEI
[AKD4342-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 9. ( In case that the selected sequence file name is
“DAC_Stereo_ON.aks”)
Figure 9. [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.
<KM081502>
2006/05
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ASAHI KASEI
[AKD4342-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 10 opens.
Figure 10. [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 11. (In case that the selected file name is
“DAC_Output.akr”)
(2) Click [WRITE] button, then the register setting is executed.
<KM081502>
2006/05
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ASAHI KASEI
[AKD4342-B]
Figure 11. [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.
<KM081502>
2006/05
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ASAHI KASEI
[AKD4342-B]
MEASUREMENT RESULTS
[Measurement condition]
• Measurement unit
• MCLK
• BICK
• fs
• Bit
• Power Supply
• Measurement Filter
• Temperature
: Audio Precession System Two Cascade
: 256fs
: 64fs
: 44.1kHz, 96kHz
: 24bit
: AVDD = DVDD = HVDD = PVDD = TVDD = 3.3V
: 10Hz ∼ 20kHz(fs= 44.1kHz), 10Hz ∼ 40kHz(fs= 96kHz)
: Room
fs= 44.1kHz
Parameter
Result (Lch / Rch)
Unit
Headphone-Amp: (DAC Æ HPL/HPR pins), RL=16Ω
THD+N
D-Range
S/N
(-4dBFS Output)
(-60dB Output, A-weighted)
(A-weighted)
Parameter
-61.7 / -61.4
94.9 / 94.4
94.6 / 94.5
dB
dB
dB
Result (Lch / Rch)
Unit
-89.5 / -89.1
99.7 / 99.8
99.7 / 99.8
dB
dB
dB
Result (Lch / Rch)
Unit
-88.0 / -87.2
95.1 / 94.8
95.1 / 94.8
dB
dB
dB
Result (Lch / Rch)
Unit
Line Output: (DAC Æ LOUT/ROUT pins)
THD+N
D-Range
S/N
(0dBFS Output)
(-60dB Output, A-weighted)
(A-weighted)
Parameter
Aux Output: (DAC Æ LAUX/RAUX pins)
THD+N
D-Range
S/N
(0dBFS Output)
(-60dB Output, A-weighted)
(A-weighted)
fs= 96kHz
Parameter
Headphone-Amp: (DAC Æ HPL/HPR pins), RL=16Ω
THD+N
D-Range
S/N
(-4dBFS Output)
(-60dB Output, A-weighted)
(-60dB Output)
(A-weighted)
Parameter
-61.7 / -61.3
94.6 / 95.0
90.1 / 90.5
94.7 / 95.1
90.1 / 90.5
dB
dB
dB
dB
dB
Result (Lch / Rch)
Unit
-88.4 / -88.2
99.4 / 99.3
94.9 / 94.9
99.5 / 99.6
95.1 / 95.1
dB
dB
dB
dB
dB
Result (Lch / Rch)
Unit
-87.0 / -86.4
95.1 / 94.8
90.3 / 90.4
95.1 / 94.9
90.3 / 90.5
dB
dB
dB
dB
dB
Line Output: (DAC Æ LOUT/ROUT pins)
THD+N
D-Range
S/N
(0dBFS Output)
(-60dB Output, A-weighted)
(-60dB Output)
(A-weighted)
Parameter
Aux Output: (DAC Æ LAUX/RAUX pins)
THD+N
D-Range
S/N
(0dBFS Output)
(-60dB Output, A-weighted)
(-60dB Output)
(A-weighted)
<KM081502>
2006/05
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ASAHI KASEI
[AKD4342-B]
[fs=44.1kHz]
[Plot of Headphone Amp]
Figure 12. THD+N vs. Input Level
AKM
AK4342 HP-AMP THD+N vs Input level (fs=44.1kHz, fin=1kHz)
-10
-15
-20
-25
-30
-35
-40
-45
d
B
r
-50
A
-60
-55
-65
-70
-75
-80
-85
-90
-95
-100
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
AKM
AK4342 HP-AMP THD+N vs Input Frequency (fs=44.1kHz, fin=-4dB)
-20
-25
-30
-35
-40
-45
-50
d
B
r
-55
A
-65
-60
-70
-75
-80
-85
-90
-95
-100
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 13. THD+N vs. Input Frequency
<KM081502>
2006/05
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ASAHI KASEI
[AKD4342-B]
AK4342 HP-AMP Linearity (fs=44.1kHz, fin=1kHz)
+0
-10
-20
-30
-40
-50
-60
d
B
r
-70
A
-90
-80
-100
-110
-120
-130
-140
-150
-160
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
last.at2c
Figure 14. Linearity
AK4342 HP-AMP Frequency Response (fs=44.1kHz, fin=0dBFs)
+0.5
+0.4
+0.3
+0.2
+0.1
+0
d
B
r
-0.1
A
-0.4
-0.2
-0.3
-0.5
-0.6
-0.7
-0.8
-0.9
-1
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 15. Frequency Response
<KM081502>
2006/05
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ASAHI KASEI
[AKD4342-B]
AKM
AK4342 HP-AMP FFT (fs=44.1kHz, fin=-4dB)
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
20
50
100
200
500
1k
2k
5k
10k
20k
5k
10k
20k
Hz
Figure 16. FFT Plot (1kHz, -4dB)
AKM
AK4342 HP-AMP FFT (fs=44.1kHz, fin=-60dB)
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
20
50
100
200
500
1k
2k
Hz
Figure 17. FFT Plot (1kHz, -60dB)
<KM081502>
2006/05
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ASAHI KASEI
[AKD4342-B]
AK4342 HP-AMP FFT (Noise Floor)
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
last.at2c
Figure 18. FFT Plot (Noise Floor)
AK4342 HP-AMP FFT (Out-band Noise)
+0
-10
-20
-30
-40
-50
-60
d
B
r
A
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
5k
10k
20k
50k
100k
Hz
last.at2c
Figure 19. Out-of-band Noise
<KM081502>
2006/05
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ASAHI KASEI
[AKD4342-B]
AKM
AK4342 HP-AMP Crosstalk (fs=44.1kHz, Input level=-4dB)
+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 20.Crosstalk
[Plot of Lineout]
AKM
AK4342 LINEOUT THD+N vs Input level (fs=44.1kHz, fin=1kHz)
-70
-72
-74
-76
-78
-80
-82
-84
-86
d
B
r
A
-88
-90
-92
-94
-96
-98
-100
-102
-104
-106
-108
-110
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
Figure 21. THD+N vs. Input level
<KM081502>
2006/05
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ASAHI KASEI
[AKD4342-B]
AKM
AK4342 LINEOUT THD+N vs Input Frequency (fs=44.1kHz, Input level=0dB)
-70
-72
-74
-76
-78
-80
-82
d
B
r
-84
-86
A
-88
-90
-92
-94
-96
-98
-100
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 22. THD+N vs. Input Frequency
AK4342 LINEOUT Linearity (fs=44.1kHz, fin=1kHz)
+0
-10
-20
-30
-40
-50
-60
d
B
r
-70
A
-90
-80
-100
-110
-120
-130
-140
-150
-160
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
last.at2c
Figure 23. Linearity
<KM081502>
2006/05
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ASAHI KASEI
[AKD4342-B]
AK4342 LINEOUT Frequency Response (fs=44.1kHz, fin=0dB)
+0.4
+0.3
+0.2
+0.1
+0
-0.1
d
B
r
-0.2
A
-0.4
-0.3
-0.5
-0.6
-0.7
-0.8
-0.9
-1
20
50
100
200
500
1k
2k
5k
10k
20k
5k
10k
20k
Hz
Figure 24. Frequency Response
AKM
AK4342 LINEOUT FFT (fs=44.1kHz, fin=0dBFs)
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
20
50
100
200
500
1k
2k
Hz
Figure 25. FFT Plot (1kHz, 0dBFs)
<KM081502>
2006/05
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ASAHI KASEI
[AKD4342-B]
AKM
AK4342 LINEOUT FFT (fs=44.1kHz, fin=-60dBFs)
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
20
50
100
200
500
1k
2k
5k
10k
20k
2k
5k
10k
20k
Hz
Figure 26. FFT Plot (1kHz, -60dBFs)
AK4342 LINEOUT FFT (Noise Floor)
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
20
50
100
200
500
1k
Hz
last.at2c
Figure 27. FFT Plot (Noise Floor)
<KM081502>
2006/05
- 23 -
ASAHI KASEI
[AKD4342-B]
AK4342 LINEOUT FFT (Out-band Noise)
+0
-10
-20
-30
-40
-50
-60
d
B
r
-70
A
-90
-80
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
5k
10k
20k
50k
100k
Hz
last.at2c
Figure 28. Out-of-band Noise
AKM
AK4342 LINEOUT Crosstalk (fs=44.1kHz, fin=0dB)
+0
T
T
T
-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
<KM081502>
2006/05
- 24 -
ASAHI KASEI
[AKD4342-B]
[Plot of AUX]
AK4342 AUX THD+N vs. Input Level (fs=44.1kkHz, fin=1kHz)
-60
-65
-70
-75
-80
d
B
r
A
-85
-90
-95
-100
-105
-110
-115
-120
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
last.at2c
Figure 30. THD+N vs. Input Level
AK4342 AUX THD+N vs. Input Frequencyl (fs=44.1kHz, fin=0dBFs)
-40
-45
-50
-55
-60
d
B
r
A
-65
-70
-75
-80
-85
-90
-95
-100
10
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
last.at2c
Figure 31. THD+N vs. Input Frequency
<KM081502>
2006/05
- 25 -
ASAHI KASEI
[AKD4342-B]
AK4342 AUX Linearity (fs=44.1kHz, fin=1kHz)
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
last.at2c
Figure 32. Linearity
A K 4 3 4 2 A U X F re q u e n c y R e s p o n s e (fs = 4 4 .1 k H z, fin = 0 d B )
+ 0 .4
+ 0 .3
+ 0 .2
+ 0 .1
+0
-0 .1
d
B
r
-0 .2
A
-0 .4
-0 .3
-0 .5
-0 .6
-0 .7
-0 .8
-0 .9
-1
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 33. Frequency Response
<KM081502>
2006/05
- 26 -
ASAHI KASEI
[AKD4342-B]
AK4342 AUX FFT (fs=44.1kHz, fin=0dBFs)
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
20
50
100
200
500
1k
2k
5k
10k
20k
5k
10k
20k
Hz
last.at2c
Figure 34. FFT Plot (1kHz, 0dB)
AK4342 AUX FFT (fs=44.1kHz, fin=-60dBFs)
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
20
50
100
200
500
1k
2k
Hz
last.at2c
Figure 35. FFT Plot (1kHz, -60dB)
<KM081502>
2006/05
- 27 -
ASAHI KASEI
[AKD4342-B]
AK4342 AUX FFT (Noise Floor)
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
last.at2c
Figure 36. FFT Plot (Noise Floor)
AK4342 AUX FFT (Out-band Noise)
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
20
50
100
200
500
1k
2k
5k
10k
20k
50k
100k
Hz
last.at2c
Figure 37. Out-of-band Noise
<KM081502>
2006/05
- 28 -
ASAHI KASEI
[AKD4342-B]
AK4342 AUX Crosstalk (fs=44.1kHz, fin=0dB)
+0
-10
-20
-30
-40
-50
d
B
-60
-70
-80
-90
-100
-110
-120
10
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
last.at2c
Figure 38. Crosstalk
<KM081502>
2006/05
- 29 -
ASAHI KASEI
[AKD4342-B]
[fs=96kHz]
[Plot of Headphone Amp]
AKM
AK4342 HP-AMP THD+N vs Input level (fs=96kHz, fin=1kHz)
-20
-25
-30
-35
-40
-45
-50
d
B
r
-55
A
-65
-60
-70
-75
-80
-85
-90
-95
-100
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
Figure 39. THD+N vs. Input Level
AKM
AK4342 HP-AMP THD+N vs Input Frequency (fs=96kHz, fin=-4dB)
-20
-25
-30
-35
-40
-45
-50
d
B
r
-55
A
-65
-60
-70
-75
-80
-85
-90
-95
-100
20
50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 40. THD+N vs. Input Frequency
<KM081502>
2006/05
- 30 -
ASAHI KASEI
[AKD4342-B]
AK4342 HP-AMP Linearity (fs=96kHz, fin=1kHz)
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
last.at2c
Figure 41. Linearity
AK4342 HP-AMP Frequency Response (fs=96kHz, fin=0dBFs)
+0.4
+0.2
+0
-0.2
-0.4
d
B
r
-0.6
A
-1
-0.8
-1.2
-1.4
-1.6
-1.8
-2
20
50
100
200
500
1k
2k
5k
10k
20k
40k
Figure 42. Frequency Response
<KM081502>
2006/05
- 31 -
ASAHI KASEI
[AKD4342-B]
AKM
AK4342 HP-AMP FFT (fs=96kHz, fin=-4dB)
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
20
50
100
200
500
1k
2k
5k
10k
20k
40k
10k
20k
40k
Hz
Figure 43. FFT Plot (1kHz,-4dB)
AKM
AK4342 LINEOUT FFT (fs=96kHz, Input level=-60dB)
+0
-10
-20
-30
-40
-50
-60
-70
d
B
r
-80
-90
-100
A
-110
-120
-130
-140
-150
-160
-170
-180
20
50
100
200
500
1k
2k
5k
Hz
Figure 44. FFT Plot (1kHz,-60dB)
<KM081502>
2006/05
- 32 -
ASAHI KASEI
[AKD4342-B]
AK4342 HP-AMP FFT (Noise Floor)
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
20
50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
last.at2c
Figure 45. FFT Plot (Noise Floor)
AK4342 HP-AMP FFT (Out-band Noise)
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
20
50
100
200
500
1k
2k
5k
10k
20k
50k
100k
Hz
last.at2c
Figure 46. Out-of-band Noise
<KM081502>
2006/05
- 33 -
ASAHI KASEI
[AKD4342-B]
AKM
AK4342 HP-AMP Crosstalk (fs=96kHz, Input level=-4dB)
+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
40k
Hz
Figure 47. Crosstalk
[Plot of Lineout]
AKM
AK4342 HP-AMP THD+N vs Input level (fs=96kHz, fin=1kHz)
-20
-25
-30
-35
-40
-45
-50
d
B
r
-55
A
-65
-60
-70
-75
-80
-85
-90
-95
-100
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
Figure 48. THD+N vs. Input level
<KM081502>
2006/05
- 34 -
ASAHI KASEI
[AKD4342-B]
AKM
AK4342 LINEOUT THD+N vs Input Frequency (fs=96kHz, Input level=0dB)
-70
-72
-74
-76
-78
-80
-82
-84
-86
d
B
r
A
-88
-90
-92
-94
-96
-98
-100
-102
-104
-106
-108
-110
20
50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 49. THD+N vs. Input Frequency
AK4342 LINEOUT Linearity (fs=96kHz, fin=1kHz)
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
last.at2c
Figure 50. Linearity
<KM081502>
2006/05
- 35 -
ASAHI KASEI
[AKD4342-B]
AK4342 LINEOUT Frequency Response (fs=96kHz, fin=0dB)
+0.4
+0.3
+0.2
+0.1
-0
-0.1
-0.2
-0.3
-0.4
d
B
r
A
-0.5
-0.6
-0.7
-0.8
-0.9
-1
-1.1
-1.2
-1.3
-1.4
-1.5
-1.6
20
50
100
200
500
1k
2k
5k
10k
20k
40k
5k
10k
20k
40k
Hz
Figure 51. Frequency Response
AKM
AK4342 LINEOUT FFT (fs=96kHz, fin=0dB)
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
20
50
100
200
500
1k
2k
Hz
Figure 52. FFT Plot (1kHz, 0dBFs)
<KM081502>
2006/05
- 36 -
ASAHI KASEI
[AKD4342-B]
AKM
AK4342 LINEOUT FFT (fs=96kHz, Input level=-60dB)
+0
-10
-20
-30
-40
-50
-60
-70
d
B
r
-80
-90
-100
A
-110
-120
-130
-140
-150
-160
-170
-180
20
50
100
200
500
1k
2k
5k
10k
20k
40k
5k
10k
20k
40k
Hz
Figure 53. FFT Plot (1kHz, -60dBFs)
AK4342 LINEOUT FFT (Noise Floor)
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
20
50
100
200
500
1k
2k
Hz
last.at2c
Figure 54. FFT Plot (Noise Floor)
<KM081502>
2006/05
- 37 -
ASAHI KASEI
[AKD4342-B]
AK4342 LINEOUT FFT (Out-band Noise)
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
20
50
100
200
500
1k
2k
5k
10k
20k
50k
100k
Hz
last.at2c
Figure 55. Out-of-band Noise
AK4342 LINEOUT Crosstalk (fs=96kHz, fin=0dB)
+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
40k
Hz
last.at2c
Figure 56. Crosstalk
<KM081502>
2006/05
- 38 -
ASAHI KASEI
[AKD4342-B]
[Plot of AUX]
AK4342 AUX THD+N vs. InputLevel (fs=96kHz, fin=1kHz)
-60
-65
-70
-75
-80
d
B
r
A
-85
-90
-95
-100
-105
-110
-115
-120
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
Figure 57. THD+N vs. Input Level
AK4342 AUX THD+N vs. Input frequency (fs-96kHz, fin=0dBFs)
-40
-45
-50
-55
-60
d
B
r
A
-65
-70
-75
-80
-85
-90
-95
-100
20
50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
last.at2c
Figure 58. THD+N vs. Input Frequency
<KM081502>
2006/05
- 39 -
ASAHI KASEI
[AKD4342-B]
AK4342 AUX Linearity (fs-96kHz, fin=1kHz)
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
last.at2c
Figure 59. Linearity
AK4342 AUX Frequency Response (fs=96kHz, fin=0dB)
+0.4
+0.2
+0
-0.2
d
B
r
A
-0.4
-0.6
-0.8
-1
-1.2
-1.4
-1.6
20
50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 60. Frequency Response
<KM081502>
2006/05
- 40 -
ASAHI KASEI
[AKD4342-B]
AK4342 AUX FFT (fs=96kHz, fin=0dBFs)
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
20
50
100
200
500
1k
2k
5k
10k
20k
40k
5k
10k
20k
40k
Hz
last.at2c
Figure 61. FFT Plot (1kHz, 0dB)
AK4342 AUX FFT (fs=96kHz, fin=-60dBFs)
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
20
50
100
200
500
1k
2k
Hz
last.at2c
Figure 62. FFT Plot (1kHz, -60dB)
<KM081502>
2006/05
- 41 -
ASAHI KASEI
[AKD4342-B]
AK4342 AUX FFT (Noise Floor)
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
20
50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
last.at2c
Figure 63. FFT Plot (Noise Floor)
AK4342 AUX FFT (Out-band Noise)
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
20
50
100
200
500
1k
2k
5k
10k
20k
50k
100k
Hz
last.at2c
Figure 64. Out-of-band Noise
<KM081502>
2006/05
- 42 -
ASAHI KASEI
[AKD4342-B]
AK4342 AUX Crosstalk (fs-96kHz, fin=0dB)
+0
-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
40k
Hz
last.at2c
Figure 65. Crosstalk
<KM081502>
2006/05
- 43 -
ASAHI KASEI
[AKD4342-B]
Revision History
Date
06/01/12
06/03/03
Manual
Revision
KM081500
KM081501
Board
Revision
0
1
Reason
First Edition
Change circuit
Change measurement
result
06/05/10
KM081502
2
Change circuit
Change measurement
result and plot data
Contents
L/ROUT output circuit of 5th page was changed.
(C41, C42 : 2.2n Æ open)
Figure39, 57(Error correct)
Figure24 and Figure51 were replaced because C41
and C42 were changed.
C6, C17, C25 : 10u Æ open
L3 : open Æ 2ohm
measurement result(P15)
plot data change (Figure12, 13, 16, 17, 20, 21, 22,
25, 26, 29, 39, 40, 43, 44, 47, 48, 49, 52, 53)
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.
<KM081502>
2006/05
- 44 -
4
3
2
1
4342_AVDD
4342_DVDD
5
D
D
C7
10u
C8
2.2u
+
+
JP4
C9
I2C
+
0.1u
0.1u
51
SDA/CDTI
26
VCOM
27
AVDD
AVSS
DVSS
28
29
30
DVDD
31
TVDD
I2C
U1
R2
1u
C13
25
C12
0.1u
AGND
32
DGND
C11
MUTET
JP3
GND
1
SDA/CDTI
RIN
24
RIN
2
SCL/CCLK
LIN
23
LIN
3
CAD0/CSN
RAUX
22
RAUX
4
MCLK
LAUX
21
LAUX
R6
C
C
51
CCLK
R3
51
CSN
R4
51
VCC
MCKI
AK4342
R5
51
C67
C63
T1
0.1u
+
LT1117-3.3
OUT
3 IN
GND
+
10u
BICK
C64
BICK
ROUT
20
ROUT
6
LRCK
LOUT
19
LOUT
7
SDATA
HVSS
18
8
PDN
HVDD
17
51
LRCK
1
R8
L10
2
10u
1
51
2
SDATA
C16
C68
+
HPR
16
HPL
15
HVEE
PVSS
PVEE
14
10
C22
2.2u
10
4342_DVDD
2ohm
C23
C24
0.1u
2.2u
4342_HVDD
HPL
L13
4342_AVDD
4342_HVDD
HPR
R45
2
13
(short)
12
CP
PDN
9
L12
1
B
0.1u
10u
PVDD
47u
11
C58
+
VCC_3.3V
CN
B
5
R7
47u
A
A
Title
AKD4342-B
Size
B
Date:
5
4
3
2
Document Number
Rev
2
AK4342
Wednesday, May 10, 2006
Sheet
1
1
of
4
5
4
3
D
2
1
D
U2
C36
+
10u
1
DVDD
CM0/CDTO/CAD1
30
2
DVSS
CM1/CDTI/SDA
29
3
TVDD
OCKS1/CCLK/SCL
28
4
V/TX
OCKS0/CSN/CAD0
27
5
XTI
MCKO1
26
6
XTO
MCKO2
25
7
PDN
DAUX
24
BICK
23
DIR_BICK
DIR_SDTI
C31
0.1u
C32
0.1u
TEST1
C33
2
R46
5.1
DIR_MCLK
X1
5p
C
C
1
C34
5p
24.576MHz
PDN1
AK4113
R31
8
R
9
AVDD
SDTO
22
10
AVSS
LRCK
21
15k
C38
10u
+
C37
0.1u
11
RX1
INT0
20
7
VCC_3.3V
1
B
12
RX2/DIF0
FS96/I2C
19
13
RX3/DIF1
P/SN
18
14
RX4/DIF2
INT1
17
15
RX5
RX6/IPS
16
DIR_LRCK
VCC_3.3V
74HC14
5
14
VCC_3.3V
U4C
6
R32
LED1
2
1k
1
VCC_3.3V
INT0
B
L8
2
(short)
PORT1
C49
VCC
GND
OUT
3
2
1
0.1u
+
C48
10u
VCC_3.3V
R44
TORX141
OPT
470
MCK01 : 256fs
Clock Operation Mode : Mode2
Audio Data Format : 24bit left justified
A
A
Title
AKD4342-B
Size
B
Date:
5
4
3
2
Document Number
Rev
2
DIR
Wednesday, May 10, 2006
Sheet
1
2
of
4
5
4
D
3
2
C40
1
D
R33
R28
1u
20k
470
+
RIN
ROUT
C41
LIN/RIN
R34
C39
6
R27
1u
20k
LIN
+
4
3
open
10k
J4
LROUT
R35
6
470
4
3
LOUT
C42
R36
J6
open
10k
HP
C
HPR
6
HPL
4
3
C
J5
R37
C43
VCC_3.3V
(short)
+
RAUX
10u
74HC14
14 7
9
74HC14
14 7
11
74HC14
U4D
8
R41
(short)
C45
10u
B
4
3
LAUX
U4E
10
LRAUX
6
R42
J7
10k
U4F
12
7
13
0.1u
+
14
B
R38
10k
C44
A
A
Title
Size
B
Date:
5
4
3
2
AKD4342-B
Document Number
Rev
2
Input/Output
Wednesday, May 10, 2006
Sheet
1
3
of
4
5
4
3
2
1
D
D
VCC_3.3V
2
VCC_3.3V
VCC_3.3V
U3
R19
U4B
4
PDN
11
Y8
A8
9
PDN1
SDATA
12
Y7
A7
8
SDTI1
LRCK
13
Y6
A6
7
LRCK1
BICK
14
Y5
A5
6
BICK1
MCKI
15
Y4
A4
5
MCLK1
CSN
16
Y3
A3
4
CAD0/CSN1
CCLK
17
Y2
A2
3
SCL/CCLK1
18
Y1
A1
2
SDA/CDTI1
10
GND
G2
19
20
VCC
G1
1
PDN1
7
74HC14
3
1
H
3
L
U4A
2
7
74HC14
1
14
10k
14
1
D1
1S1588
SW1
DAC/DIR_PDN
C35
2
0.1u
C
JP10
SDA
JP12
DIR_MCLK
MCLK1
3wire
SDA/CDTI
MCLK
I2C
C27
JP5
0.1u
BICK1
DIR_BICK
74LVC541
C
BICK
VCC_3.3V
JP6
LRCK1
DIR_LRCK
B
B
LRCK
JP11
DIR_SDTI
SDTI1
VCC_3.3V
SDTI
MCLK
BICK
LRCK
SDTI
1
2
3
4
5
PORT2
10
9
8
7
6
DSP
GND
GND
1
2
3
4
5
R21
VCC_3.3V
R22
10k
R23
470
R24
10k
R25
470
R26
10k
R29
470
CAD0/CSN1
SCL/CCLK1
SDA/CDTI1
PORT3
10 CSN
9 SCL/CCLK
8 SDA/CDTI
7
6
uP-I/F
JP7
10k
CAD0
A
A
Title
AKD4342-B
Size
B
Date:
5
4
3
2
Document Number
Rev
2
Interface
Wednesday, May 10, 2006
Sheet
4
1
of
4