AK4370VN

ASAHI KASEI
[AKD4370-A]
AKD4370-B
Evaluation Board Rev.0 for AK4370
GENERAL DESCRIPTION
The AKD4370 is an evaluation board for 24bit DAC with Headphone Amplifier, AK4370. The AKD 4370
has the interface with AKM’s ADC evaluation boards. Therefore, it’s easy to evaluate the AK4370. The
ADK4370 also has the digital audio interface and can achieve the interface with digital audio systems via
opt-connector.
„ Ordering guide
AKD4370-B ---
Evaluation board for AK4370
(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 AK4116 as DIR which accepts optical input
• 10pin header for serial control interface
• Mini-jack for external Stereo Speaker
• On-board Class-D Speaker Amplifier (AK7832)
Vcc (5.0V)
GND
Regulator
(3.3V)
Opt In
(PORT1)
HPL
AK4116
(DIR)
DSP
10pin Header
(PORT2)
HPR
AK4370
SPPL
AK7832
(SPK-Amp)
Control Data
10pin Header
(PORT3)
LIN1
RIN1
LIN2
RIN2
HP
SPPR
LOUT
ROUT
L/ROUT
Figure 1. AKD4370 Block Diagram
* Circuit diagram and PCB layout are attached at the end of this manual.
<KM086300>
2006/12
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ASAHI KASEI
[AKD4370-A]
Evaluation Board Manual
Operation sequence
1) Set up the power supply lines.
[VCC] (red) = 5.0V
: for Regulator
[AGND] (black) = 0V
: for analog ground
[DGND] (black) = 0V
: for logic ground
Each supply line should be distributed from the power supply unit.
3.3V is supplied to via the regulator.
2) Set up the evaluation mode, jumper pins. (See the followings.)
3) Power on.
The AK4370 and AK4116 should be resets once bringing SW1 (DAC/DIR_PDN) “L” upon power-up.
And the AK7832 should be resets once bringing SW2 (SPK_PDN) “L” upon power-up.
Evaluation mode
When evaluating the AK4370 using the PORT1(AK4116), it is possible to use the initial setting of the audio
interface format (24bit MSB justified). The AK4116 operates at fs of 32kHz or more. If the fs is slower than
32kHz, any other evaluation mode should be used.
When inputting the data from the PORT2, the AK4370’s audio interface format should be set to correspond
the input data’s audio interface format. Refer to the AK4370’s datasheet.
Applicable Evaluation Mode
(1) External Slave Mode
(1-1) Evaluation using DIR (Optical Link) of AK4116
(1-2) Evaluation connecting AKD4370 with external DSP
(2) Master Mode
<KM086300>
2006/12
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ASAHI KASEI
[AKD4370-A]
(1) Slave Mode
The AK4370’s register should be set to Slave Mode. MCKI frequency should be set to the same as the
specification of DSP or DIR. About the AK4370’s register definitions, refer to datasheet of the AK4370.
DSP or µP
AK4370
256fs, 384fs, 512fs,
768fs or 1024fs
MCKI
32fs ~ 64fs
BICK
1fs
LRCK
MCLK
BCLK
LRCK
SDTO
SDATA
Figure 2. Slave Mode
(1-1)
Evaluation using DIR (Optical Link) of AK4116
PORT1 (DIR) is used. Nothing should be connected to PORT2 (DSP).
Set up the jumper pins.
JP3
LRCK2
(1-2)
JP4
BICK2
JP5
MCLK
JP6
BICK
JP7
LRCK
JP8
SDTO
Evaluation connecting AKD4370 with external DSP
PORT2 (DSP) is used. Nothing should be connected to PORT1 (DIR).
MCLK, SDTI, BICK, LRCK of PORT2 should be connected to MCLK, SDTO, BICK, LRCK for DSP.
Set up the jumper pins.
JP3
LRCK2
JP4
BICK2
JP5
MCLK
JP6
BICK
<KM086300>
JP7
LRCK
JP8
SDTO
2006/12
-3-
ASAHI KASEI
[AKD4370-A]
(2) Master Mode
The AK4370’s register should be set to Master Mode. MCKI frequency should be set to the same as DSP’s
specification. About the AK4370’s register definitions, refer to datasheet of the AK4370.
DSP or µP
AK4370
256fs, 384fs, 512fs,
768fs or 1024fs
MCKI
32fs, 64fs
BICK
1fs
LRCK
MCLK
BCLK
LRCK
SDTO
SDATA
Figure 3. Master Mode
PORT2 (DSP) is used. Nothing should be connected to PORT1 (DIR).
The system clock should be connected to MCLK of PORT2. SDTI of PORT2 should be connected to SDTO of
DSP. The JP4(LRCK2) and JP3(BICK2)’s right side should be connected to LRCK and BICK of DSP.
Set up the jumper pins.
JP3
LRCK2
JP4
BICK2
JP6
BICK
JP5
MCLK
<KM086300>
JP7
LRCK
JP8
SDTO
2006/12
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ASAHI KASEI
[AKD4370-A]
Other jumper pins set up
JP1 (GND) : Analog ground and Digital ground.
OPEN : Separated.
SHORT : Common. <default>
JP11 (INLN) : Setting of AK7832 Input pin “INLN”
OPEN : When SW2 (SPK_PDN) is “L”.
SHORT : When SW2 (SPK_PDN) is “H”. <default>
JP12 (INRN) : Setting of AK7832 Input pin “INRN”
OPEN : When SW2 (SPK_PDN) is “L”.
SHORT : When SW2 (SPK_PDN) is “H”. <default>
JP13 (DVDD_REG) : Setting of Power Supply “DVDD”
OPEN : It supplies “DVDD” from the outside.
SHORT : It supplies “DVDD” from the Regulator (3.3V).<default>
The function of the toggle SW
Upper-side is “H” and lower-side is “L”.
[SW1] (DAC/DIR_PDN): Power down of AK4370 and AK4116. Keep “H” during normal operation.
[SW2] (SPK_PDN): Power down of AK7832. Keep “H” during normal operation.
Indication for LED
[LED1] (ERF): Monitor INT0 pin of the AK4116. LED turns on when some error has occurred to AK4116.
<KM086300>
2006/12
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ASAHI KASEI
[AKD4370-A]
Serial Control
The AK4370 can be controlled via the printer port (parallel port) of IBM-AT compatible PC. Connect PORT3
(uP -IF) with PC by 10 wire flat cable packed with the AKD4370.
CSN
Connect
CCLK
PC
CDTI
AKD4370
10 Wire Flat Cable
10pin Connector
10pin Header
Figure 4. Connect of 10 wire flat cable
(1) 3-wire Serial Control Mode <Default>
The jumper pins should be set to the followings.
JP10
CAD0
JP9
SDA
JP2
I2C_SEL
I2C
3-wire
(2) I2C-bus Control Mode
The jumper pins should be set to the followings.
(2-1) In case of using CAD0=0 (device address bits).
JP10
CAD0
JP9
SDA
JP2
I2C_SEL
I2C
3-wire
(2-2) In case of using CAD0=1 (device address bits).
JP10
CAD0
JP9
SDA
JP2
I2C_SEL
I2C
<KM086300>
3-wire
2006/12
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ASAHI KASEI
[AKD4370-A]
Input / Output circuit
(1) Input Circuit
LIN1/RIN1, LIN2/RIN2 Input circuits
C19
1u
RIN1
6
+
C20
1u
4
3
LIN1
C21
1u
+
J3
LIN2/RIN2
+
J2
LIN1/RIN1
RIN2
6
4
3
+
C27
1u
LIN2
Figure 5. LIN1/RIN1,LIN2/RIN2 Input circuits
(2)
Output Circuit
R9 (short)
+
1) HPL/HPR Output Circuit
C25
100u
HPR
R10(short)
+
6
J4
4
3
C28
100u
HPL
HP
Figure 6. HPL/HPR Output Circuit
+
2) LOUT/ROUT Output Circuit
C30
1u
R11
220
ROUT
R12
47k
+
6
C32
1u
R13
220
LOUT
J6
4
3
L/R OUT
R14
47k
Figure 7. LOUT/ROUT Output Circuit
<KM086300>
2006/12
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ASAHI KASEI
[AKD4370-A]
3) Speaker Output Circuit
Evaluation using AK7832’s Speaker , the jumper pins should be set to the followings.
JP11
INLN
JP12
INRN
TP2
VCLN
6
1
VCLN
4
3
1
TP3
VCLP
VCLP
SPP_L
TP4
VCRN
6
1
VCRN
J8
4
3
1
TP5
VCRP
VCRP
J7
SPP_R
Figure 8. SPK-Amp Output Circuit
∗ AKM assumes no responsibility for the trouble when using the above circuit examples.
<KM086300>
2006/12
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ASAHI KASEI
[AKD4370-A]
Control Software Manual
Set-up of evaluation board and control software
1. Set up the AKD4370 according to previous term.
2. Connect IBM-AT compatible PC with AKD4370 by 10-line type flat cable (packed with AKD4370). 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 “AK4370 Evaluation Kit” into the CD-ROM drive.
4. Access the CD-ROM drive and double-click the icon of “akd4370.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.
2.
3.
4.
5.
6.
7.
8.
[Port Reset] :
[Write default] :
[All Write] :
[Function1] :
[Function2] :
[Function3] :
[Function4] :
[Function5] :
9. [SAVE] :
10. [OPEN] :
11. [Write] :
Set up the USB interface board (AKDUSBIF-A) when using the board.
Initialize the register of AK4370.
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.
<KM086300>
2006/12
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ASAHI KASEI
[AKD4370-A]
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 AK4370, 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 AK4370, click [OK] button. If not, click [Cancel] button.
3. [Function2 Dialog] : Dialog to evaluate DATT
There are dialogs corresponding to register of 05h, 06h, 09h and 0Eh.
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 AK4370 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 AK4370, click [OK] button. If not, click [Cancel] button.
<KM086300>
2006/12
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ASAHI KASEI
[AKD4370-A]
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 AK4370. The file type is the same as [SAVE].
<Operation flow>
(1) Click [OPEN] Button.
(2) Select the file (*.akr) and Click [OPEN] Button.
<KM086300>
2006/12
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ASAHI KASEI
[AKD4370-A]
5. [Function3 Dialog]
The sequence of register setting can be set and executed.
(1) Click [F3] Button. The default setting sequence DAC->HP(3D=OFF) is displayed. Jump to (3) below if the
default setting sequence is used. Go to (2) if the other setting sequence is required.
(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]
<KM086300>
2006/12
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ASAHI KASEI
[AKD4370-A]
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 9 opens.
Figure 10. [F4] window
<KM086300>
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ASAHI KASEI
[AKD4370-A]
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 10. ( 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.
<KM086300>
2006/12
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ASAHI KASEI
[AKD4370-A]
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 11 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 12. (In case that the selected file name is
“DAC_Output.akr”)
(2) Click [WRITE] button, then the register setting is executed.
<KM086300>
2006/12
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ASAHI KASEI
[AKD4370-A]
Figure 13. [F5] window (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.
<KM086300>
2006/12
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ASAHI KASEI
[AKD4370-A]
MEASUREMENT RESULTS
[Measurement condition]
• Measurement unit
• MCLK
• BICK
• fs
• Bit
• Measurement Mode
• Power Supply
• Measurement Filter
• Temperature
: Audio Precession System Two Cascade
: 11.2896MHz
: 64fs
: 44.1kHz
: 24bit
: Slave Mode
: AVDD = HVDD = DVDD = PVDD = 3.3V
:22Hz ∼ 20kHz
: Room
Parameter DAC Analog Output Characteristics
DAC -> HP AMP RL=16Ω
THD+N
(0dBFS Output)
D-Range
(-60dB Output, A-weighted)
S/N
(A-weighted)
DAC -> LOUT RL=47kΩ
THD+N
(0dBFS Output)
D-Range
(-60dB Output, A-weighted)
S/N
(A-weighted)
<KM086300>
Result (Lch / Rch)
Unit
54.1 / 54.2
92.7 / 92.7
93.2 / 93.2
dB
dB
dB
59.8 / 60.0
90.2 / 90.2
90.4 / 90.2
dB
dB
dB
2006/12
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ASAHI KASEI
[AKD4370-A]
[Plot of Headphone Amp]
AKM
HP-AMP THD + N vs Input Level
fs=44.1kHz , fin=1kHz
+0
-10
-20
-30
-40
-50
d
B
r
-60
A
-80
-70
-90
-100
-110
-120
-130
-140
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
Figure 14. THD+N vs. Input Level
AKM
HP-AMP THD + N vs Input Frequency
fs=44.1kHz , 0dB Input
+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
Figure 15. THD+N vs. Input Frequency
<KM086300>
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ASAHI KASEI
[AKD4370-A]
AKM
HP-AMP THD + N vs Linearity
fs=44.1kHz , fin=1kHz
+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 16. Linearity
AKM
HP-AMP Frequency Response
fs=44.1kHz , 0dB Input
+2
-0
-2
-4
-6
-8
d
B
r
-10
-12
A
-14
-16
-18
-20
-22
-24
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 17. Frequency Response
(including external HPF)
<KM086300>
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ASAHI KASEI
[AKD4370-A]
AKM
HP-AMP FFT
fs=44.1kHz , 0dB Input
+0
-10
-20
-30
-40
-50
-60
-70
d
B
r
-80
A
-100
-90
-110
-120
-130
-140
-150
-160
-170
-180
20
50
100
200
500
1k
2k
5k
10k
20k
2k
5k
10k
20k
Hz
Figure 18. FFT Plot(1kHz,0dB)
AKM
HP-AMP FFT
fs=44.1kHz , -60dB Input
+0
-10
-20
-30
-40
-50
-60
-70
d
B
r
-80
A
-100
-90
-110
-120
-130
-140
-150
-160
-170
-180
20
50
100
200
500
1k
Hz
Figure 19. FFT Plot(1kHz,-60dB)
<KM086300>
2006/12
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ASAHI KASEI
[AKD4370-A]
AKM
HP-AMP FFT
fs=44.1kHz , No Signal
+0
-10
-20
-30
-40
-50
-60
-70
d
B
r
-80
A
-100
-90
-110
-120
-130
-140
-150
-160
-170
-180
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 20. FFT Plot(Noise Floor)
AKM
HP-AMP FFT
fs=44.1kHz , Outband Noise
+0
-10
-20
-30
-40
-50
-60
-70
d
B
r
-80
A
-100
-90
-110
-120
-130
-140
-150
-160
-170
-180
20
50
100
200
500
1k
2k
5k
10k
20k
50k
100k
Hz
Figure 21. Out-band Noise
<KM086300>
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ASAHI KASEI
[AKD4370-A]
AKM
HP-AMP Crosstalk
fs=44.1kHz , 0dB Input
+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 22. Crosstalk
<KM086300>
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ASAHI KASEI
[AKD4370-A]
Revision History
Date
(YY/MM/DD)
06/12/12
Manual
Revision
KM086300
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.
<KM086300>
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D
E
RIN2
LIN1
C
LIN2
B
RIN1
A
DGND
JP1
GND
AGND
E
E
HPL
19
20
HPR
HPL
21
RIN2
SDATA
VSS1
18
2
BICK
HVDD
17
C1
0.1u
51
BICK
D
2.2u
C6
14
ROUT
VSS2
LOUT
13
LOUT
12
I2C
MUTET
ROUT
11
6
AVDD_REG
C5
0.1u
DVDD
PDN
5
C9
0.1u
16
15
10
10u
C8
D
C4
10u
VCOM
7
+
MCKI
CSN/CAD0
DVDD
4
9
10
AVDD
AK4370VN
CCLK/SCL
R5
MCKI
LRCK
8
LRCK
CDTI/SDA
3
51
HVDD_REG
C3
0.1u
51
R4
C2
10u
+
R3
22
1
+
R2
RIN1
51
SDATA
+
R1
LIN2
24
LIN1
U1
23
HPR
JP11
INLN
JP12
INRN
C13
0.1u
C15
0.1u
B4
B5
NC
INRN
INLP
A5
B1
A3
INLN
B3
NC
INRP
U2
SCL
B2
+
R7
51
A1
C
1u
C14
A2
C
NC
E5
VSS3
VCLP
E4
VCLP
VC
VSS1
E3
VCLN
VCRP
E2
PDN
CSN
CCLK
CDTI
C16
C17
0.1u
C1
B
AK7832
0.01u
DVDDI
B
JP2
VDD1
D5
D4
D3
D2
D1
C4
VCLN
PDN
VSS2
C3
I2CEN
SPK_PDN
C5
R8
47k
VCRN
NC
I2C_SEL
VDD2
SDA
E1
VDD3
C2
VCRP
VCRN
D_REG
A
A
Title
Size
A3
Date:
A
B
C
D
AKD4370-B
Document Number
Rev
AK4370 , AK7832
Monday, October 30, 2006
Sheet
E
1
of
0
3
A
B
C
D
E
D_REG
LIN1
DIR_REG
2
2
AVDD_REG
JP13
C21
1u
J3
LIN2/RIN2
RIN2
6
DVDD
DVDD_REG
C27
1u
4
3
C30
1u
R12
47k
LIN2
D
R11
220
ROUT
+
+ C26
47u
HP
HVDD_REG
+
GND
1
C24
0.1u
R10(short)
4
3
HPL
L4 (short)
OUT
C23
0.1u
J4
+
IN
1
C28
100u
6
L3 (short)
T1
TA48M33F
+ C22
47u
2
C20
1u
4
3
C25
100u
HPR
+
1
RIN1
6
2
L2 (short)
R9 (short)
+
1
C19
1u
J2
LIN1/RIN1
L1 10u
+
E
VCC +5V
+
E
D
J6
+
6
C32
1u
R13
220
4
3
LOUT
L/R OUT
R14
47k
TP2
VCLN
J7
6
1
VCLN
TP3
VCLP
C
C
1
VCLP
4
3
SPP_L
TP4
VCRN
J8
6
1
VCRN
TP5
VCRP
1
VCRP
4
3
SPP_R
B
B
A
A
Title
Size
A3
Date:
A
B
C
D
AKD4370-B
Document Number
Rev
Input/Output
Monday, October 30, 2006
Sheet
E
0
2
of
3
A
B
C
D
E
E
E
D_REG
D_REG
R15
1k
K
2
A
PORT1
C34
0.1u
PDN
TORX141
C35
0.1u
C36
10u
D
14
Vcc
7
4Y
4A
5Y
5A
6Y
6A
8
9
10
11
12
13
SPK_PDN
GND
U3 74HC14
D1
HSU119
L
1
H
3
L
R19
12k
C39
0.1u
16
INT0
17
PDN
18
AVSS
R
D
R17
10k
H
C38 SW2
0.1u SPK_PDN
2
SW1
DAC/DIR_PDN
19
20
AVDD
U4
D2
HSU119
A
C37
0.1u
R18
470
R16
10k
A
+
DIR_REG
3
2
1
1A
1Y
2A
2Y
3A
3Y
2
GND
OUT
1
2
3
4
5
6
K
VCC
3
K
LED1
ERF
L5
47u
1
1
C33
0.1u
1
RX0
INT1
2
DVDD
CSN
15
14
CSN
CCLK
13
CCLK
CDTI
12
CDTI
R20
5.1
DIR_REG
TP6
XTI
3
DVSS
4
XTI
AK4116
U5
C
X1
11.2896MHz
11
3
A1
B1
21
4
A2
B2
20
PDN
CDTO
MCKO
DAUX
SDATA
JP3
LRCK2
5
A3
B3
19
6
A4
B4
18
7
A5
B5
17
MCKI
8
A6
B6
16
CSN
9
A7
B7
15
CCLK
10
A8
B8
14
10
9
6
SDTO
CDTO
BICK
XTO
8
5
LRCK
2
C43
10p
C41
0.1u
7
C42
10p
C
10u
C40
1 1
+
LRCK
JP4
BICK2
BICK
JP5
MCLK
JP6
BICK
JP7
LRCK
B
B
JP8
SDTO
D_REG
C44
0.1u
1
VCCA
VCCB
24
2
DIR
VCCB
23
11
GND
OE
22
12
GND
GND
13
PORT2
MCLK
BICK
LRCK
SDTI
1
2
3
4
5
10
9
8
7
6
GND
GND
D_REG
R21
10k
R22
470
R23
10k
R24
470
R25
10k
R26
470
DVDD
C45
0.1u
DSP
74AVC8T245
D_REG
R27
10k
PORT3
1
2
3
4
5
A
10
9
8
7
6
uP-I/F
CSN
SCL/CCLK
SDA/CDTI
CDTO
CDTI
CDTO
JP9
SDA
A
JP10
CAD0
Title
Size
A2
Date:
A
B
C
D
AKD4370-B
Document Number
Rev
CLOCK
Thursday, November 16, 2006
E
Sheet
0
3
of
3
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