AKD4620B-B_06 [AKM]
24Bit A/D & D/A converter; 24位A / D和D / A转换器
| 型号： | AKD4620B-B_06 |
| 厂家： | 
ASAHI KASEI MICROSYSTEMS |
| 描述： | 24Bit A/D & D/A converter |
| 文件： | 总63页 (文件大小：658K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ASAHI KASEI
[AKD4620B-B]
AKD4620B-B
AK4620B Evaluation board Rev.1
GENERAL DESCRIPTION
The AKD4620B-B is an evaluation board for the AK4620B, the 24Bit A/D & D/A converter. The
AKD4620B-B can evaluate A/D converter and D/A converter separately in addition to loopback mode
(A/D→D/A). The AKD4620B-B also has the digital audio interface and can achieve the interface with
digital audio systems via opt-connector.
Ordering guide
AKD4620B-B
--- Evaluation board for AK4620B
(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
Digital interface
-
-
DIT (AK4114): optical or BNC
DIR (AK4114): optical or BNC
10pin header for serial control interface
-15V +15V
AGND DGND
Regulator
BNC
LIN
Input
Buffer
Opt In
AK4114
(DIR&DIT)
RIN
Opt Out
BNC
AK4620B
Output
Buffer
LOUT
ROUT
10pin Header
Control Data
Figure 1. AKD4620B-B Block Diagram
* Circuit diagram are attached at the end of this manual.
<KM078901>
2006/06
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ASAHI KASEI
[AKD4620B-B]
Evaluation Board Manual
Operation sequence
1) Set up the power supply line
[+15V]
[-15V]
[GND]
(green)
(blue)
(black)
= +15V
= -15V
= 0V
Note: Each supply line should be distributed from the power supply unit.
2) Set up the evaluation modes, jumper pins and DIP switch. (See the followings.)
3) Power on
The AK4620B should be reset once bringing SW2 (PDN) “L” upon power-up.
<KM078901>
2006/06
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ASAHI KASEI
[AKD4620B-B]
Evaluation modes
Applicable evaluation modes
(1) Loopback mode (Default)
(2) Evaluation of DAC
(3) Evaluation of ADC
1) Loopback mode (Default)
1-1) Analog input mode
JP3
JP4
JP5
JP6
SW1-2
Jumper
(LIN)
(AINL)
(RIN)
(AINR)
(ADMODE)
SINGLE SINGLE
DIFF DIFF
Table 1. Analog Input Mode
Single-ended
Differential
SINGLE SINGLE
OFF
ON
(Default)
DIFF DIFF
* As for analog input circuit, please see the following item “Analog Input Buffer Circuit”.
1-2) Sampling speed & MCLK frequency
a) parallel mode
Sampling
Speed of
AK4620B
Normal
Speed
MCLK
Frequency of
AK4620B
SW1-1 SW1-4 SW1-6 SW1-7
SW3-4
SW3-5
(P/S)
(DFS0) (CKS1) (CKS0) (OCKS1) (OCKS0)
ON
OFF
ON
OFF
OFF
ON
ON
ON
OFF
OFF
512fs
(Default)
Double
Speed
ON
OFF
256fs
Table 2. Sampling Speed & Master clock Frequency in parallel mode
* Parallel mode does not support quad speed mode.
b) serial mode
Sampling
Speed of
AK4620B
MCLK
Frequency of
AK4620B
SW1 DFS1 DFS0 CMODE CKS1 CKS0
SW3-4
(OCKS1) (OCKS0)
SW3-5
(P/S)
bit
bit
bit
bit
bit
Normal
Speed
OFF
0
0
0
0
1
ON
OFF
512fs
Double
Speed
Quad Speed
OFF
OFF
0
1
1
0
0
0
0
0
1
1
OFF
ON
OFF
ON
256fs
128fs
Table 3. Sampling Speed & Master clock Frequency in serial mode
* In serial mode, SW1-4(DFS0), SW1-6(CKS1) and SW1-7(CSK0) should be always “OFF”, and DFS1, DFS0,
CKS1, CKS0 and CMODE bits in the AK4620B should be set via the printer port (PORT3).
<KM078901>
2006/06
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ASAHI KASEI
[AKD4620B-B]
1-3) AK4114’s master clock mode & reference X’tal frequency
SW3-6 SW3-7
(CM1) (CM0)
Mode
1
PLL
OFF
X'tal
ON
Clock source SDTO
X'tal DAUX (Default)
OFF
ON
Table 4. AK4114’S Clock Operation Mode
SW3-1
(XTL1)
SW3-2
(XTL0)
X’tal Frequency
ON
OFF
24.576MHz
(Default)
Table 5. Reference X’tal frequency
2) Evaluation of D/A using DIR. (Optical link)
The DIR generates MCLK, BICK, LRCK and SDATA from the received data through optical
connector (PORT1). PORT1 is also used for the evaluation using such as CD test disk.
BNC connector is recommended for an evaluation of the Sound quality.
2-1) DIR input interface (Default: JP2="OPT")
JP2
Jumper
(RX3)
OPT or BNC
BNC
Normal & Double Speed
Quard Speed
Table 6. DIR Input Interface
2-2) Sampling speed & MCLK frequency
a) parallel mode
Sampling
MCLK
Frequency of
AK4620B
SW1-1
(P/S)
SW1-4
SW1-6
SW1-7
SW3-4
SW3-5
(OCKS0)
Speed of
AK4620B
Normal
Speed
Normal
Speed
(DFS0) (CKS1) (CKS0) (OCKS1)
ON
ON
ON
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
ON
OFF
ON
OFF
OFF
OFF
256fs
512fs
256fs
Double
Speed
OFF
Table 7. Sampling Speed & Master clock Frequency in parallel mode
* Parallel mode does not support quad speed mode.
<KM078901>
2006/06
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ASAHI KASEI
[AKD4620B-B]
b) serial mode
SW1-1 DFS1 DFS0 CMODE CKS1 CKS0
Sampling
Speed of
AK4620B
Normal
Speed
MCLK
Frequency of
AK4620B
SW3-4
(OCKS1) (OCKS0)
SW3-5
(P/S)
OFF
OFF
bit
bit
bit
bit
bit
0
0
0
0
0
OFF
ON
OFF
OFF
256fs
512fs
Normal
Speed
0
0
0
0
1
Double
Speed
Quad Speed
OFF
OFF
0
1
1
0
0
0
0
0
1
1
OFF
ON
OFF
ON
256fs
128fs
Table 8. Sampling Speed & Master clock Frequency in serial mode
* In serial mode, SW1-4(DFS0), SW1-6(CKS1) and SW1-7(CSK0) should be always “OFF”, and DFS1, DFS0, CKS1,
CKS0 and CMODE bits in the AK4620B should be set via the printer port (PORT3).
2-3) AK4114’s master clock mode & reference X’tal frequency
SW3-6 SW3-7
(CM1) (CM0)
Mode
0
PLL
ON
X'tal
OFF
Clock source SDTO
PLL RX
OFF
OFF
Table 9. Clock Operation Mode
SW3-1
(XTL1)
ON
SW3-2
(XTL0)
ON
X’tal Frequency
OFF
Table 10. Reference X’tal frequency
<KM078901>
2006/06
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ASAHI KASEI
[AKD4620B-B]
3) Evaluation of A/D using DIT. (Optical link)
DIT generates audio bi-phase signal from received data and which is output through optical connector (PORT2).
It is possible to connect AKM’s D/A converter evaluation boards on the digital-amplifier which equips DIR
input.
3-1) Analog input mode
JP3
JP4
JP5
JP6
SW1-2
Jumper
(LIN)
(AINL)
(RIN)
(AINR)
(ADMODE)
SINGLE SINGLE
DIFF DIFF
Table 11. Analog Input Mode
Single-ended
Differential
SINGLE SINGLE
OFF
ON
DIFF DIFF
* As for analog input circuit, please see the following item “Analog Input Buffer Circuit”.
3-2) DIT output interface (Default: JP7="OPT")
JP7
Jumper
(TX)
OPT or BNC
BNC
Normal & Double Speed
Quard Speed
Table 12. DIT Output Interface
3-3) Sampling speed & MCLK frequency
a) parallel mode
Sampling
MCLK
Frequency of
AK4620B
SW1-1
(P/S)
SW1-4
SW1-6
SW1-7
SW3-4
SW3-5
(OCKS0)
Speed of
AK4620B
Normal
Speed
Normal
Speed
(DFS0) (CKS1) (CKS0) (OCKS1)
ON
ON
ON
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
ON
OFF
ON
OFF
OFF
OFF
256fs
512fs
256fs
Double
Speed
OFF
Table 13. Sampling Speed & Master clock Frequency in parallel mode
* Parallel mode does not support quad speed mode.
<KM078901>
2006/06
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ASAHI KASEI
[AKD4620B-B]
b) serial mode
SW1-1 DFS1 DFS0 CMODE CKS1 CKS0
Sampling
Speed of
AK4620B
MCLK
Frequency of
AK4620B
SW3-4
(OCKS1) (OCKS0)
SW3-5
(P/S)
bit
bit
bit
bit
bit
Normal
Speed
Normal
Speed
L
0
0
0
0
0
OFF
ON
OFF
OFF
256fs
512fs
L
0
0
0
0
1
Double
Speed
Quad Speed
L
L
0
1
1
0
0
0
0
0
1
1
OFF
ON
OFF
ON
256fs
128fs
Table 14. Sampling Speed & Master clock Frequency in serial mode
* In serial mode, SW1-4(DFS0), SW1-6(CKS1) and S1-7(CSK0) should be always “OFF”, and DFS1, DFS0, CKS1,
CKS0 and CMODE bits in the AK4620B should be set via the printer port (PORT3).
3-4) AK4114’s master clock mode & reference X’tal frequency
3-4-1) PLL is used as clock source
Synchronized signal should be set via PORT1(optical) or J6(BNC).
SW3-6 SW3-7
(CM1) (CM0)
Mode
0
PLL
ON
X'tal
OFF
Clock source SDTO
OFF
OFF
PLL
RX
Table 15. Clock Operation Mode ( PLL)
SW3-1
(XTL1)
1
SW3-2
(XTL0)
X’tal Frequency
OFF
1
Table 16. Reference X’tal frequency(PLL)
3-4-2) X’tal is used as clock source
SW3-6 SW3-7
(CM1) (CM0)
Mode
1
PLL
OFF
X'tal
ON
Clock source SDTO
OFF
ON
X’tal
DAUX
Table 17. Clock Operation Mode ( X’tal)
SW3-1
(XTL1)
1
SW3-2
X’tal Frequency
(XTL0)
0
24.576MHz
Table 18. Reference X’tal frequency ( X’tal)
<KM078901>
2006/06
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ASAHI KASEI
[AKD4620B-B]
Set-up of SW1 and SW3
1) Set-up of SW1(AK4620B’s mode set-up)
1-1) Audio data format in parallel mode
DIF
(SW1-5)
Mode
SDTO
SDTI
LRCK
BICK
24bit MSB Justified
I2S Compatible
H/L
L/H
(Default)
2
3
OFF
24bit MSB Justified
I2S Compatible
≥48fs
≥48fs
ON
Table 19. Audio data format (parallel Mode)
1-2) De-emphasis control in parallel mode
DEM0 pin
MODE
(SW1-3)
OFF
ON
ON(44.1KHz)
OFF
(Default)
Table 20. De-emphasis control (parallel mode)
1-3) parallel mode/ serial mode
P/S pin
MODE
(SW1-1)
OFF
ON
Serial
Parallel
(Default)
Table 21. Set up P/S pin
2) Set-up of SW3(AK4114’s mode set-up)
2-1) Audio data format
DIF0
Mode
SDTO
SDTI
LRCK
BICK
(SW3-5)
24bit MSB Justified
I2S Compatible
H/L
L/H
(Default)
4
5
L
24bit MSB Justified
I2S Compatible
≥48fs
≥48fs
H
Table22. Audio data format
* DIF1=L and DIF2=H are fixed in AKD4620B-B evaluation board.
<KM078901>
2006/06
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ASAHI KASEI
[AKD4620B-B]
The function of the toggle SW.
[SW2] : Resets the AK4620B. Keep “H” during normal operation.
Serial control mode
The AK4620B can be controlled via the printer port (parallel port) of IBM-AT compatible PC. Connect
PORT3(CR-I/F) with PC by 10-wire flat cable packed with the AKD4620B-B.
Take care of the direction of connector. There is a mark at pin#1.
CSN
CCLK
Connect
AKD4620A-B
CDTI
CDTO
PC
10 wire
10pin
10pin Header
flat cable
Connector
Figure 2. Connect of 10 wire flat cable
<KM078901>
2006/06
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ASAHI KASEI
[AKD4620B-B]
Analog Input Buffer Circuit
1. Differential Input Mode
The AK4620B can accept input voltages from AGND to VA. The input signal range scales with the VREF voltage and is
nominally 2.82Vpp (VREF = 5V). Figure 3 shows an input buffer circuit example. This is a fully differential input buffer
circuit with an inverted amplifier (fc=370KHz,gain: −10dB).
The capacitor of 10nF between AINL+/− (AINR+/−) decreases the clock feedthrough noise of the modulator, and
composes a 1st order LPF (fc=360kHz) with a 22Ω resistor before the capacitor.
910
4.7k
VP+
470p
4.7k
47µ
47µ
3k
2.82Vpp
10n
Analog In
9.3Vpp
22
AIN+
VP-
Bias
NJM5532
910
AK4620B
470p
VA
3k
22
10k
AIN-
0.1µ 10µ
VA = 5V
Bias
VP+ = 15V
Bias
2.82Vpp
10k
VP- = -15V
Figure 3. Input buffer circuit in differential mode
2. Single-ended Input Mode
When the AK4620B is evaluated by single-ended mode, C49 and C90 should be removed.
3.07Vpp
AK4620B
AINR+
22u
+
Signal
Signal
2
3
4
5
AINR-
AINL+
AINL-
22u
+
Figure 4. Input buffer circuit in Single-ended mode
<KM078901>
2006/06
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ASAHI KASEI
[AKD4620B-B]
Analog Output Buffer Circuit
The differential output circuit(2nd order LPF,fc=182KHz,Q=0.637,G=+3.9dB) and LPF(1st order LPF, fc=284KHz,
G=-0.84dB) is implemented on board. The differential outputs of AK4620B is buffered by non-inverted circuit and
output via Cannon connector (differential output). LPF adds differential outputs. NJM5534D is used for op-amp on this
board that has low noise and high voltage torelance characteristics. Analog signal is output via BNC connectors on the
board. The output level is about 2.8Vrms (typ@VREF=5.0V) by BNC.
+15
3.3n
-15
+
10u
100u
180
3.9n
0.1u
7
4
3
2
+
AOUTL-
6
+
-
330
10u
+
0.1u
10u
560
NJM5534D
+
0.1u
1.0n
680
100
2
-
4
6
620
620
Lch
+
3
1.0n 7
NJM5534D
3.3n
180
3.9n
+
10u
10u
100u
0.1u
7
+
3
2
AOUTL+
+
-
6
330
+10u
0.1u
4
NJM5534D
+
0.1u
680
Figure 5. Output buffer circuit
* AKM assumes no responsibility for the trouble when using the above circuit examples.
<KM078901>
2006/06
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ASAHI KASEI
[AKD4620B-B]
Control Software Manual
Set-up of evaluation board and control software
1. Set up the AKD4620B-B according to previous term.
2. Connect IBM-AT compatible PC with AKD4620B-B by 10-line type flat cable (packed with AKD4620B-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 “AKD4620B-B Evaluation Kit” into the CD-ROM drive.
4. Access the CD-ROM drive and double-click the icon of “akd4620b-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
[Port Reset] :
Set up the USB interface board (AKDUSBIF-A) .
[Write default] : Initialize the register of AK4620B.
[All Write] :
[Function1] :
[Function2] :
[Function3] :
[Function4] :
[Function5]:
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] :
[OPEN] :
[Write] :
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.
<KM078901>
2006/06
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ASAHI KASEI
[AKD4620B-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 AK4620B, click [OK] button. If not, click [Cancel] button.
2. [Function1 Dialog]: Dialog to write data by keyboard operation
Address Box: Input registers address in 2 figures of hexadecimal.
Data Box:
Input registers data in 2 figures of hexadecimal.
If you want to write the input data to the AK4620B, click [OK] button. If not, click [Cancel] button.
3. [Function2 Dialog] : Dialog to evaluate volume
Address Box:
Start Data Box:
End Data Box:
Interval Box:
Step Box:
Input registers address in 2 figures of hexadecimal.
Input starts data in 2 figures of hexadecimal.
Input end data in 2 figures of hexadecimal.
Data is written to the AK4620B by this interval.
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 AK4620B, click [OK] button. If not, click [Cancel] button.
<KM078901>
2006/06
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ASAHI KASEI
[AKD4620B-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 AK4620B. The file type is the same as [SAVE].
<Operation flow>
(1) Click [OPEN] Button.
(2) Select the file (*.akr) and Click [OPEN] Button.
<KM078901>
2006/06
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ASAHI KASEI
[AKD4620B-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 6. Window of [F3]
<KM078901>
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ASAHI KASEI
[AKD4620B-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 7. [F4] window
<KM078901>
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ASAHI KASEI
[AKD4620B-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 8. [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.
<KM078901>
2006/06
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ASAHI KASEI
[AKD4620B-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 9. [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.
<KM078901>
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ASAHI KASEI
[AKD4620B-B]
Figure 10. [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.
<KM078901>
2006/06
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ASAHI KASEI
[AKD4620B-B]
MEASUREMENT RESULTS
[Measurement condition]
Measurement unit: Audio Precision System Two Cascade
MCLK: 512fs (44.1kHz), 256fs (96kHz), 128fs (192kHz)
BICK: 64fs
Power supply Voltage: VA=VT=5.0V, VD=3.3V
Interface: Internal DIT or DIR (44.1kHz, 96kHz, 192KHz)
Temperature: Room Temp.
1. ADC (Single-ended)
fs=44.1kHz
Results
Results
Results
Parameter
Input signal
Measurement filter
L ch
R ch
S/(N+D)
DR
1kHz, -1dB
1kHz, -60dB
1kHz, -60dB
No input
20kLPF
89.7dB
108.2dB
110.9dB
110.9dB
90.0dB
108.2dB
110.9dB
110.9dB
20kLPF
DR
20kLPF, A-weighted
20kLPF, A-weighted
S/N
fs=96kHz
Parameter
Input signal
Measurement filter
L ch
R ch
S/(N+D)
DR
1kHz, -1dB
1kHz, -60dB
1kHz, -60dB
No input
40kLPF
89.2dB
104.8dB
110.7dB
110.7dB
89.5dB
104.7dB
110.7dB
110.7dB
40kLPF
DR
40kLPF, A-weighted
40kLPF, A-weighted
S/N
fs=192kHz
Parameter
Input signal
Measurement filter
L ch
R ch
S/(N+D)
DR
1kHz, -1dB
1kHz, -60dB
1kHz, -60dB
No input
40kLPF
89.0dB
104.8dB
110.6dB
110.5dB
89.3dB
104.8dB
110.6dB
110.5dB
40kLPF
DR
40kLPF, A-weighted
40kLPF, A-weighted
S/N
<KM078901>
2006/06
- 20 -
ASAHI KASEI
[AKD4620B-B]
2. ADC (Differential)
fs=44.1kHz
Results
Results
Results
Parameter
Input signal
Measurement filter
L ch
R ch
S/(N+D)
DR
1kHz, -1dB
1kHz, -60dB
1kHz, -60dB
No input
20kLPF
100.7dB
111.8dB
114.5dB
114.5dB
101.5dB
111.8dB
114.4dB
114.4dB
20kLPF
DR
20kLPF, A-weighted
20kLPF, A-weighted
S/N
fs=96kHz
Parameter
Input signal
Measurement filter
L ch
R ch
S/(N+D)
DR
1kHz, -1dB
1kHz, -60dB
1kHz, -60dB
No input
40kLPF
101.0dB
107.6dB
114.3dB
114.3dB
101.5dB
107.6dB
114.2dB
114.2dB
40kLPF
DR
40kLPF, A-weighted
40kLPF, A-weighted
S/N
fs=192kHz
Parameter
Input signal
Measurement filter
L ch
R ch
S/(N+D)
DR
1kHz, -1dB
1kHz, -60dB
1kHz, -60dB
No input
40kLPF
100.8dB
107.5dB
113.8dB
113.8dB
101.4dB
107.4dB
114.0dB
114.0dB
40kLPF
DR
40kLPF, A-weighted
40kLPF, A-weighted
S/N
3. DAC
fs=44.1kHz
Results
Results
Results
Parameter
Input signal
Measurement filter
L ch
R ch
S/(N+D)
DR
1kHz, 0dB
1kHz, -60dB
1kHz, -60dB
“0” data
20kLPF
99.8dB
113.0dB
115.2dB
115.3dB
96.7dB
113.0dB
115.2dB
115.3dB
20kLPF
DR
22kLPF, A-weighted
22kLPF, A-weighted
S/N
fs=96kHz
Parameter
Input signal
Measurement filter
L ch
R ch
S/(N+D)
DR
1kHz, 0dB
1kHz, -60dB
1kHz, -60dB
“0” data
40kLPF
99.3dB
110.3dB
115.3dB
115.3dB
96.8dB
110.4dB
115 .3dB
115.4dB
40kLPF
DR
40kLPF, A-weighted
40kLPF, A-weighted
S/N
fs=192kHz
Parameter
Input signal
Measurement filter
L ch
R ch
S/(N+D)
DR
1kHz, 0dB
1kHz, -60dB
1kHz, -60dB
“0” data
40kLPF
98.6dB
110.0dB
114.9dB
115.3dB
96.3dB
110.0dB
114.9dB
115.3dB
40kLPF
DR
40kLPF, A-weighted
40kLPF, A-weighted
S/N
<KM078901>
2006/06
- 21 -
ASAHI KASEI
[AKD4620B-B]
[Plots]
ADC (Single-ended)
(fs=44.1kHz)
AK4620B FFT (Single-ended)
VA=VT=5V, VD=3.3V, fs=44.1kHz, -1dB input
+0
-10
-20
-30
-40
-50
-60
-70
d
B
F
-80
S
-90
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 11. FFT (fin=1kHz, Input Level=-1dBFS)
AK4620B FFT (Single-ended)
VA=VT=5V, VD=3.3V, fs=44.1kHz, -60dB input
+0
-10
-20
-30
-40
-50
-60
-70
d
B
F
S
-80
-90
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 12. FFT (fin=1kHz, Input Level=-60dBFS)
<KM078901>
2006/06
- 22 -
ASAHI KASEI
[AKD4620B-B]
(fs=44.1kHz)
AK4620B FFT (Single-ended)
VA=VT=5V, VD=3.3V, fs=44.1kHz, No input
+0
-10
-20
-30
-40
-50
-60
-70
d
B
F
-80
S
-90
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 13. FFT (Noise Floor)
AK4620B THD+N vs Input Level
VA=VT=5V, VD=3.3V, fs=44.1kHz
-80
-85
-90
-95
-100
-105
-110
-115
-120
-125
-130
-135
d
B
F
S
-140
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Figure 14. THD+N vs. Input level (fin=1kHz)
<KM078901>
2006/06
- 23 -
ASAHI KASEI
[AKD4620B-B]
(fs=44.1kHz)
AK4620B THD+N vs Input Frequency
VA=VT=5V, VD=3.3V, fs=44.1kHz
-80
-85
-90
-95
-100
-105
d
B
F
-110
S
-115
-120
-125
-130
-135
-140
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 15. THD +N vs. Input Frequency (Input level=-1dBFS)
AK4620B Linearity
VA=VT=5V, VD=3.3V, fs=44.1kHz
+0
-10
-20
-30
-40
-50
-60
d
B
F
-70
S
-80
-90
-100
-110
-120
-130
-140
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Figure 16. Linearity (fin=1kHz)
<KM078901>
2006/06
- 24 -
ASAHI KASEI
[AKD4620B-B]
(fs=44.1kHz)
AK4620B Frequency Respons
VA=VT=5V, VD=3.3V, fs=44.1kHz
+0
-0.2
-0.4
-0.6
-0.8
d
B
F
S
-1
-1.2
-1.4
-1.6
-1.8
-2
2k
4k
6k
8k
10k
Hz
12k
14k
16k
18k
20k
Figure 17. Frequency Response
AK4620B Crosstalk Lch: Red, Rch: Blue
VA=VT=5V, VD=3.3V, fs=44.1kHz
-80
-85
-90
-95
-100
-105
d
B
-110
-115
-120
-125
-130
-135
-140
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 18. Crosstalk
<KM078901>
2006/06
- 25 -
ASAHI KASEI
[AKD4620B-B]
(fs=96kHz)
AK4620B FFT (Single-ended)
VA=VT=5V, VD=3.3V, fs=96kHz, -1dB input
+0
-10
-20
-30
-40
-50
-60
-70
d
B
F
-80
S
-90
-100
-110
-120
-130
-140
-150
-160
40 50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 19. FFT (fin=1kHz, Input Level=-1dBFS)
AK4620B FFT (Single-ended)
VA=VT=5V, VD=3.3V, fs=96kHz, -60dB input
+0
-10
-20
-30
-40
-50
-60
-70
d
B
F
S
-80
-90
-100
-110
-120
-130
-140
-150
-160
40 50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 20. FFT (fin=1kHz, Input Level=-60dBFS)
<KM078901>
2006/06
- 26 -
ASAHI KASEI
[AKD4620B-B]
(fs=96kHz)
AK4620B FFT (Single-ended)
VA=VT=5V, VD=3.3V, fs=96kHz, No input
+0
-10
-20
-30
-40
-50
-60
-70
d
B
F
-80
S
-90
-100
-110
-120
-130
-140
-150
-160
40 50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 21. FFT (Noise Floor)
AK4620B THD+N vs Input Level
VA=VT=5V, VD=3.3V, fs=96kHz
-80
-85
-90
-95
-100
-105
-110
-115
-120
-125
-130
-135
d
B
F
S
-140
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Figure 22. THD +N vs. Input level (fin=1kHz)
<KM078901>
2006/06
- 27 -
ASAHI KASEI
[AKD4620B-B]
(fs=96kHz)
AK4620B THD+N vs Input Frequency
VA=VT=5V, VD=3.3V, fs=96kHz
-80
-85
-90
-95
-100
-105
d
B
F
-110
S
-115
-120
-125
-130
-135
-140
40 50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 23. THD +N vs. Input Frequency (Input level=-1dBFS)
AK4620B Linearity
VA=VT=5V, VD=3.3V, fs=96kHz
+0
-10
-20
-30
-40
-50
-60
d
B
-70
F
S
-80
-90
-100
-110
-120
-130
-140
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Figure 24. Linearity (fin=1kHz)
<KM078901>
2006/06
- 28 -
ASAHI KASEI
[AKD4620B-B]
(fs=96kHz)
AK4620B Frequency Respons
VA=VT=5V, VD=3.3V, fs=96kHz
+0
-0.2
-0.4
-0.6
-0.8
d
B
F
S
-1
-1.2
-1.4
-1.6
-1.8
-2
2.5k
5k
7.5k
10k
12.5k
15k
17.5k
20k
Hz
22.5k
25k
27.5k
30k
32.5k
35k
37.5k
40k
Figure 25. Frequency Response
AK4620B Crosstalk Lch: Red, Rch: Blue
VA=VT=5V, VD=3.3V, fs=96kHz
-80
-85
-90
-95
-100
-105
-110
-115
-120
-125
-130
-135
d
B
-140
40 50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 26. Crosstalk
<KM078901>
2006/06
- 29 -
ASAHI KASEI
[AKD4620B-B]
(fs=192kHz)
AKM
AK4620 FFT (Singl-ended)
VA=VT=5V, VD=3.3V, fs=192kHz, -1dB input
+0
-10
-20
-30
-40
-50
-60
-70
d
B
F
-80
S
-90
-100
-110
-120
-130
-140
-150
-160
90
200
500
1k
2k
5k
10k
20k
50k
80k
Hz
Figure 27. FFT (fin=1kHz, Input Level=-1dBFS)
AKM
AK4620 FFT (Singl-ended)
VA=VT=5V, VD=3.3V, fs=192kHz, -60dB input
+0
-10
-20
-30
-40
-50
-60
-70
d
B
F
-80
S
-90
-100
-110
-120
-130
-140
-150
-160
90
200
500
1k
2k
5k
10k
20k
50k
80k
Hz
Figure 28. FFT (fin=1kHz, Input Level=-60dBFS)
<KM078901>
2006/06
- 30 -
ASAHI KASEI
[AKD4620B-B]
(fs=192kHz)
AKM
AK4620 FFT (Singl-ended)
VA=VT=5V, VD=3.3V, fs=192kHz, No input
+0
-10
-20
-30
-40
-50
-60
-70
d
B
F
-80
S
-90
-100
-110
-120
-130
-140
-150
-160
90
200
500
1k
2k
5k
10k
20k
50k
80k
Hz
Figure 29. FFT (Noise Floor)
AKM
AK4620 THD+N vs Input Level
VA=VT=5V, VD=3.3V, fs=192kHz
-80
-85
-90
-95
-100
-105
d
B
F
-110
S
-115
-120
-125
-130
-135
-140
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Figure 30. THD+N vs. Input level (fin=1kHz)
<KM078901>
2006/06
- 31 -
ASAHI KASEI
[AKD4620B-B]
(fs=192kHz)
AKM
AK4620 THD+N vs Input Frequency
VA=VT=5V, VD=3.3V, fs=192kHz
-80
-85
-90
-95
-100
-105
d
B
F
-110
S
-115
-120
-125
-130
-135
-140
90
200
500
1k
2k
5k
10k
20k
50k
80k
Hz
Figure 31. THD+N vs. Input Frequency (Input level=-1dBFS)
AK4620B Linearity
VA=VT=5V, VD=3.3V, fs=192kHz
+0
-10
-20
-30
-40
-50
-60
d
B
-70
F
S
-80
-90
-100
-110
-120
-130
-140
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Figure 32. Linearity (fin=1kHz)
<KM078901>
2006/06
- 32 -
ASAHI KASEI
[AKD4620B-B]
(fs=192kHz)
AKM
AK4620 Frequency Respons
VA=VT=5V, VD=3.3V, fs=192kHz
-0
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
-0.9
-1
d
B
F
S
-1.1
-1.2
-1.3
-1.4
-1.5
-1.6
-1.7
-1.8
-1.9
-2
90
200
500
1k
2k
5k
10k
20k
50k
80k
Hz
Figure 33. Frequency Response
AKM
AK4620 Crosstalk Lch: Red, Rch: Biue
VA=VT=5V, VD=3.3V, fs=192kHz
-80
-85
-90
-95
-100
-105
-110
-115
-120
-125
-130
-135
-140
-145
-150
-155
d
B
-160
90
200
500
1k
2k
5k
10k
20k
50k
80k
Hz
Figure 34. Crosstalk
<KM078901>
2006/06
- 33 -
ASAHI KASEI
[AKD4620B-B]
ADC (Differential)
(fs=44.1kHz)
AK4620B FFT (Diffrential)
VA=VT=5V, VD=3.3V, fs=44.1kHz, -1dB input
+0
-10
-20
-30
-40
-50
-60
-70
d
B
F
-80
S
-90
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 35. FFT (fin=1kHz, Input Level=-1dBFS)
AK4620B FFT (Diffrential)
VA=VT=5V, VD=3.3V, fs=44.1kHz, -60dB input
+0
-10
-20
-30
-40
-50
-60
-70
d
B
F
S
-80
-90
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 36. FFT (fin=1kHz, Input Level=-60dBFS)
<KM078901>
2006/06
- 34 -
ASAHI KASEI
[AKD4620B-B]
(fs=44.1kHz)
AK4620B FFT (Diffrential)
VA=VT=5V, VD=3.3V, fs=44.1kHz, No input
+0
-10
-20
-30
-40
-50
-60
-70
d
B
F
-80
S
-90
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 37. FFT (Noise Floor)
AK4620B THD+N vs Input Level
VA=VT=5V, VD=3.3V, fs=44.1kHz
-80
-85
-90
-95
-100
-105
-110
-115
-120
-125
-130
-135
d
B
F
S
-140
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Figure 38. THD+N vs. Input level (fin=1kHz)
<KM078901>
2006/06
- 35 -
ASAHI KASEI
[AKD4620B-B]
(fs=44.1kHz)
AK4620B THD+N vs Input Frequency
VA=VT=5V, VD=3.3V, fs=44.1kHz
-80
-85
-90
-95
-100
-105
d
B
F
-110
S
-115
-120
-125
-130
-135
-140
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 39. THD +N vs. Input Frequency (Input level=-1dBFS)
AK4620B Linearity
VA=VT=5V, VD=3.3V, fs=44.1kHz
+0
-10
-20
-30
-40
-50
-60
d
B
F
-70
S
-80
-90
-100
-110
-120
-130
-140
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Figure 40. Linearity (fin=1kHz)
<KM078901>
2006/06
- 36 -
ASAHI KASEI
[AKD4620B-B]
(fs=44.1kHz)
AK4620B Frequency Respons
VA=VT=5V, VD=3.3V, fs=44.1kHz
+0
-0.2
-0.4
-0.6
-0.8
d
B
F
S
-1
-1.2
-1.4
-1.6
-1.8
-2
2k
4k
6k
8k
10k
Hz
12k
14k
16k
18k
20k
Figure 41. Frequency Response
AK4620B Crosstalk Lch: Red, Rch: Biue
VA=VT=5V, VD=3.3V, fs=44.1kHz
-80
-85
-90
-95
-100
-105
-110
-115
d
B
-120
-125
-130
-135
-140
-145
-150
-155
-160
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 42. Crosstalk
<KM078901>
2006/06
- 37 -
ASAHI KASEI
[AKD4620B-B]
(fs=96kHz)
AK4620B FFT (Diffrential)
VA=VT=5V, VD=3.3V, fs=96kHz, -1dB input
+0
-10
-20
-30
-40
-50
-60
-70
d
B
F
-80
S
-90
-100
-110
-120
-130
-140
-150
-160
40 50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 43. FFT (fin=1kHz, Input Level=-1dBFS)
AK4620B FFT (Diffrential)
VA=VT=5V, VD=3.3V, fs=96kHz, -60dB input
+0
-10
-20
-30
-40
-50
-60
-70
d
B
F
S
-80
-90
-100
-110
-120
-130
-140
-150
-160
40 50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 44. FFT (fin=1kHz, Input Level=-60dBFS)
<KM078901>
2006/06
- 38 -
ASAHI KASEI
[AKD4620B-B]
(fs=96kHz)
AK4620B FFT (Diffrential)
VA=VT=5V, VD=3.3V, fs=96kHz, No input
+0
-10
-20
-30
-40
-50
-60
-70
d
B
F
-80
S
-90
-100
-110
-120
-130
-140
-150
-160
40 50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 45. FFT (Noise Floor)
AK4620B THD+N vs Input Level
VA=VT=5V, VD=3.3V, fs=96kHz
-80
-85
-90
-95
-100
-105
-110
-115
-120
-125
-130
-135
d
B
F
S
-140
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Figure 46. THD +N vs. Input level (fin=1kHz)
<KM078901>
2006/06
- 39 -
ASAHI KASEI
[AKD4620B-B]
(fs=96kHz)
AK4620B THD+N vs Input Frequency
VA=VT=5V, VD=3.3V, fs=96kHz
-80
-85
-90
-95
-100
-105
d
B
F
-110
S
-115
-120
-125
-130
-135
-140
40 50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 47. THD +N vs. Input Frequency (Input level=-1dBFS)
AK4620B Linearity
VA=VT=5V, VD=3.3V, fs=96kHz
+0
-10
-20
-30
-40
-50
-60
d
B
F
-70
S
-80
-90
-100
-110
-120
-130
-140
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Figure 48. Linearity (fin=1kHz)
<KM078901>
2006/06
- 40 -
ASAHI KASEI
[AKD4620B-B]
(fs=96kHz)
AK4620B Frequency Respons
VA=VT=5V, VD=3.3V, fs=96kHz
+0
-0.2
-0.4
-0.6
-0.8
d
B
F
S
-1
-1.2
-1.4
-1.6
-1.8
-2
2.5k
5k
7.5k
10k
12.5k
15k
17.5k
20k
Hz
22.5k
25k
27.5k
30k
32.5k
35k
37.5k
40k
Figure 49. Frequency Response
AK4620B Crosstalk Lch :Red, Rch: Blue
VA=VT=5V, VD=3.3V, fs=96kHz
-80
-85
-90
-95
-100
-105
-110
-115
-120
-125
-130
-135
-140
-145
-150
-155
d
B
-160
40 50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 50. Crosstalk
<KM078901>
2006/06
- 41 -
ASAHI KASEI
[AKD4620B-B]
(fs=192kHz)
AKM
AK4620 FFT (Diffrential)
VA=VT=5V, VD=3.3V, fs=192kHz, -1dB input
+0
-10
-20
-30
-40
-50
-60
-70
d
B
F
-80
S
-90
-100
-110
-120
-130
-140
-150
-160
90
200
500
1k
2k
5k
10k
20k
50k
80k
Hz
Figure 51. FFT (fin=1kHz, Input Level=-1dBFS)
AKM
AK4620 FFT (Diffrential)
VA=VT=5V, VD=3.3V, fs=192kHz, -60dB input
+0
-10
-20
-30
-40
-50
-60
-70
d
B
F
-80
S
-90
-100
-110
-120
-130
-140
-150
-160
90
200
500
1k
2k
5k
10k
20k
50k
80k
Hz
Figure 52. FFT (fin=1kHz, Input Level=-60dBFS)
<KM078901>
2006/06
- 42 -
ASAHI KASEI
[AKD4620B-B]
(fs=192kHz)
AKM
AK4620 FFT (Diffrential)
VA=VT=5V, VD=3.3V, fs=192kHz, No input
+0
-10
-20
-30
-40
-50
-60
-70
d
B
F
-80
S
-90
-100
-110
-120
-130
-140
-150
-160
90
200
500
1k
2k
5k
10k
20k
50k
80k
Hz
Figure 53. FFT (Noise Floor)
AKM
AK4620 THD+N vs Input Level
VA=VT=5V, VD=3.3V, fs=192kHz
-80
-85
-90
-95
-100
-105
d
B
F
-110
S
-115
-120
-125
-130
-135
-140
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Figure 54. THD+N vs. Input level (fin=1kHz)
<KM078901>
2006/06
- 43 -
ASAHI KASEI
[AKD4620B-B]
(fs=192kHz)
AKM
AK4620 THD+N vs Input Frequency
VA=VT=5V, VD=3.3V, fs=192kHz
-80
-85
-90
-95
-100
-105
d
B
F
-110
S
-115
-120
-125
-130
-135
-140
90
200
500
1k
2k
5k
10k
20k
50k
80k
Hz
Figure 55. THD+N vs. Input Frequency (Input level=-1dBFS)
AKM
AK4620 Linearity
VA=VT=5V, VD=3.3V, fs=192kHz
+0
-10
-20
-30
-40
-50
-60
d
B
F
-70
S
-80
-90
-100
-110
-120
-130
-140
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Figure 56. Linearity (fin=1kHz)
<KM078901>
2006/06
- 44 -
ASAHI KASEI
[AKD4620B-B]
(fs=192kHz)
AKM
AK4620 Frequency Respons
VA=VT=5V, VD=3.3V, fs=192kHz
-0
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
-0.9
-1
d
B
F
S
-1.1
-1.2
-1.3
-1.4
-1.5
-1.6
-1.7
-1.8
-1.9
-2
5k
10k
15k
20k
25k
30k
35k
40k
Hz
45k
50k
55k
60k
65k
70k
75k
80k
Figure 57. Frequency Response
AKM
AK4620 Crosstalk Lch: Red, Rch: Biue
VA=VT=5V, VD=3.3V, fs=192kHz
-80
-85
-90
-95
-100
-105
-110
-115
-120
-125
-130
-135
-140
-145
-150
-155
d
B
-160
90
200
500
1k
2k
5k
10k
20k
50k
80k
Hz
Figure 58. Crosstalk
<KM078901>
2006/06
- 45 -
ASAHI KASEI
[AKD4620B-B]
DAC
(fs=44.1kHz)
AK4620B FFT (DAC)
VA=VT=5V, VD=3.3V, fs=44.1kHz, 0dBFS input
+0
-10
-20
-30
-40
-50
-60
d
B
r
-70
-80
-90
A
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 59. FFT (fin=1kHz, Input Level=0BFS)
AK4620B FFT (DAC)
VA=VT=5V, VD=3.3V, fs=44.1kHz, -60dBFS input
+0
-10
-20
-30
-40
-50
-60
d
B
r
-70
-80
-90
A
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 60. FFT (fin=1kHz, Input Level=-60dBFS)
<KM078901>
2006/06
- 46 -
ASAHI KASEI
[AKD4620B-B]
(fs=44.1kHz)
AK4620B FFT (DAC)
VA=VT=5V, VD=3.3V, fs=44.1kHz, No input
+0
-10
-20
-30
-40
-50
-60
d
B
r
-70
-80
-90
A
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 61. FFT (Noise Floor)
AK4620B THD+N vs Input Level
VA=VT=5V, VD=3.3V, fs=44.1kHz
-80
-85
-90
-95
-100
-105
-110
-115
-120
-125
-130
-135
d
B
r
A
-140
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
Figure 62. THD+N vs. Input level (fin=1kHz)
<KM078901>
2006/06
- 47 -
ASAHI KASEI
[AKD4620B-B]
(fs=44.1kHz)
AK4620B THD+N vs Input Frequency
VA=VT=5V, VD=3.3V, fs=44.1kHz
-80
-85
-90
-95
-100
-105
d
B
r
-110
-115
-120
-125
-130
-135
A
-140
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 63. THD +N vs. Input Frequency (Input level=0dBFS)
AK4620B Linearity
VA=VT=5V, VD=3.3V, fs=44.1kHz
+0
-10
-20
-30
-40
-50
-60
d
B
r
-70
-80
A
-90
-100
-110
-120
-130
-140
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
Figure 64. Linearity (fin=1kHz)
<KM078901>
2006/06
- 48 -
ASAHI KASEI
[AKD4620B-B]
(fs=44.1kHz)
AK4620B Frequency Respons
VA=VT=5V, VD=3.3V, fs=44.1kHz
+1
+0.8
+0.6
+0.4
+0.2
d
B
r
+0
-0.2
-0.4
-0.6
-0.8
A
-1
2k
4k
6k
8k
10k
Hz
12k
14k
16k
18k
20k
Figure 65. Frequency Response (Input level=0dBFS)
AK4620B Crosstalk Lch: Red, Rch: Blue
VA=VT=5V, VD=3.3V, fs=44.1kHz
-80
-85
-90
-95
-100
-105
-110
-115
-120
-125
-130
-135
d
B
-140
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 66. Crosstalk
<KM078901>
2006/06
- 49 -
ASAHI KASEI
[AKD4620B-B]
(fs=44.1kHz)
AK4620B FFT (DAC) Out-band noize
VA=VT=5V, VD=3.3V, fs=44.1kHz, No input
+0
-10
-20
-30
-40
-50
-60
d
B
r
-70
-80
-90
A
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
5k
10k
20k
50k
100k
Hz
Figure 67. Out-of-band Noise
<KM078901>
2006/06
- 50 -
ASAHI KASEI
[AKD4620B-B]
(fs=96kHz)
AK4620B FFT (DAC)
VA=VT=5V, VD=3.3V, fs=96kHz, 0dBFS input
+0
-10
-20
-30
-40
-50
-60
d
B
r
-70
-80
-90
A
-100
-110
-120
-130
-140
-150
-160
40 50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 68. FFT (fin=1kHz, Input Level=0dBFS)
AK4620B FFT (DAC) Notch
VA=VT=5V, VD=3.3V, fs=96kHz, 0dBFS input
+0
-10
-20
-30
-40
-50
-60
-70
d
B
r
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
A
-180
40 50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 69. FFT (fin=1kHz, Input Level=0dBFS, Notch Filter)
<KM078901>
2006/06
- 51 -
ASAHI KASEI
[AKD4620B-B]
(fs=96kHz)
AK4620B FFT (DAC)
VA=VT=5V, VD=3.3V, fs=96kHz, -60dBFS input
+0
-10
-20
-30
-40
-50
-60
d
B
r
-70
-80
-90
A
-100
-110
-120
-130
-140
-150
-160
40 50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 70. FFT (fin=1kHz, Input Level=-60dBFS)
AK4620B FFT (DAC)
VA=VT=5V, VD=3.3V, fs=96kHz, No input
+0
-10
-20
-30
-40
-50
-60
d
B
r
-70
-80
-90
A
-100
-110
-120
-130
-140
-150
-160
40 50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 71. FFT (Noise Floor)
<KM078901>
2006/06
- 52 -
ASAHI KASEI
[AKD4620B-B]
(fs=96kHz)
AK4620B THD+N vs Input Level
VA=VT=5V, VD=3.3V, fs=96kHz
-80
-85
-90
-95
-100
-105
d
B
-110
-115
-120
-125
-130
-135
r
A
-140
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
Figure 72. THD +N vs. Input level (fin=1kHz)
AK4620B THD+N vs Input Frequency
VA=VT=5V, VD=3.3V, fs=96kHz
-80
-85
-90
-95
-100
-105
-110
-115
-120
-125
-130
-135
d
B
r
A
-140
40 50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 73. THD +N vs. Input Frequency (Input level=0dBFS)
<KM078901>
2006/06
- 53 -
ASAHI KASEI
[AKD4620B-B]
(fs=96kHz)
AK4620B Linearity
VA=VT=5V, VD=3.3V, fs=96kHz
+0
-10
-20
-30
-40
-50
-60
-70
d
B
r
-80
A
-90
-100
-110
-120
-130
-140
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
Figure 74. Linearity (fin=1kHz)
AK4620B Frequency Respons
VA=VT=5V, VD=3.3V, fs=96kHz
+1
+0.8
+0.6
+0.4
+0.2
+0
d
B
r
A
-0.2
-0.4
-0.6
-0.8
-1
2.5k
5k
7.5k
10k
12.5k
15k
17.5k
20k
Hz
22.5k
25k
27.5k
30k
32.5k
35k
37.5k
40k
Figure 75. Frequency Response (Input level=0dBFS)
<KM078901>
2006/06
- 54 -
ASAHI KASEI
[AKD4620B-B]
(fs=96kHz)
AK4620B Crosstalk Lch: Red, Rch: Blue
VA=VT=5V, VD=3.3V, fs=96kHz
-80
-85
-90
-95
-100
-105
d
B
-110
-115
-120
-125
-130
-135
-140
40 50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 76. Crosstalk
<KM078901>
2006/06
- 55 -
ASAHI KASEI
[AKD4620B-B]
(fs=192kHz)
AKM
AK4620 FFT (DAC)
VA=VT=5V, VD=3.3V, fs=192kHz, 0dBFS input
+0
-10
-20
-30
-40
-50
-60
d
B
r
-70
-80
-90
A
-100
-110
-120
-130
-140
-150
-160
90
200
500
1k
2k
5k
10k
20k
50k
80k
Hz
Figure 77. FFT (fin=1kHz, Input Level=0dBFS)
AKM
AK4620 FFT (DAC) Notch
VA=VT=5V, VD=3.3V, fs=192kHz
+0
-10
-20
-30
-40
-50
-60
-70
d
B
r
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
A
-180
90
200
500
1k
2k
5k
10k
20k
50k
80k
Hz
Figure 78. FFT (fin=1kHz, Input Level=0dBFS, Notch Filter)
<KM078901>
2006/06
- 56 -
ASAHI KASEI
[AKD4620B-B]
(fs=192kHz)
AKM
AK4620 FFT (DAC)
VA=VT=5V, VD=3.3V, fs=192kHz, -60dBFS input
+0
-10
-20
-30
-40
-50
-60
d
B
r
-70
-80
-90
A
-100
-110
-120
-130
-140
-150
-160
90
200
500
1k
2k
5k
10k
20k
50k
80k
Hz
Figure 79. FFT (fin=1kHz, Input Level=-60dBFS)
AKM
AK4620 FFT (DAC)
VA=VT=5V, VD=3.3V, fs=192kHz, No input
+0
-10
-20
-30
-40
-50
-60
d
B
r
-70
-80
-90
A
-100
-110
-120
-130
-140
-150
-160
90
200
500
1k
2k
5k
10k
20k
50k
80k
Hz
Figure 80. FFT (Noise Floor)
<KM078901>
2006/06
- 57 -
ASAHI KASEI
[AKD4620B-B]
(fs=192kHz)
AKM
AK4620 THD+N vs Input Level
VA=VT=5V, VD=3.3V, fs=192kHz
-80
-85
-90
-95
-100
-105
d
B
-110
-115
-120
-125
-130
-135
r
A
-140
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
Figure 81. THD+N vs. Input level (fin=1kHz)
AKM
AK4620 THD+N vs Input Frequency
VA=VT=5V, VD=3.3V, fs=192kHz
-80
-85
-90
-95
-100
-105
-110
-115
-120
-125
-130
-135
d
B
r
A
-140
90
200
500
1k
2k
5k
10k
20k
50k
80k
Hz
Figure 82. THD+N vs. Input Frequency (Input level=0dBFS)
<KM078901>
2006/06
- 58 -
ASAHI KASEI
[AKD4620B-B]
(fs=192kHz)
AKM
AK4620 Linearity
VA=VT=5V, VD=3.3V, fs=192kHz
+0
-10
-20
-30
-40
-50
-60
-70
d
B
r
A
-80
-90
-100
-110
-120
-130
-140
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
Figure 83. Linearity (fin=1kHz)
AKM
AK4620 Frequency Respons
VA=VT=5V, VD=3.3V, fs=192kHz
+1
+0.8
+0.6
+0.4
+0.2
+0
-0.2
-0.4
-0.6
-0.8
-1
d
B
r
A
-1.2
-1.4
-1.6
-1.8
-2
5k
10k
15k
20k
25k
30k
35k
40k
Hz
45k
50k
55k
60k
65k
70k
75k
80k
Figure 84. Frequency Response (Input level=0dBFS)
<KM078901>
2006/06
- 59 -
ASAHI KASEI
[AKD4620B-B]
(fs=192kHz)
AKM
AK4620 Crosstalk Lch: Red, Rch: Blue
VA=VT=5V, VD=3.3V, fs=192kHz
-80
-85
-90
-95
-100
-105
d
B
-110
-115
-120
-125
-130
-135
-140
90
200
500
1k
2k
5k
10k
20k
50k
80k
Hz
Figure 85. Crosstalk
<KM078901>
2006/06
- 60 -
ASAHI KASEI
[AKD4620B-B]
Revision History
Date
(YY/MM/DD)
05/05/26
Manual
Revision
KM078900
KM078901
Board
Revision
Reason
Contents
0
1
First Edition
Change
control
06/06/12
Control software was updated: 1.0 → 2.0
Control software manual was changed: P12-14 → P12-19
software
Error Correct Circuit diagram was changed.
• U1: AK4620A →AK4620B
• Document Number: AK4620A →AK4620B
• Circuit diagram name: AKD4620A-B → AKD4620B-B
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.
<KM078901>
2006/06
- 61 -
5
4
3
2
1
T1
VREF
VA
C14
T2
LP2950A
NJM78M05FA
R501
10
1
3
3
1
VOP+
IN
OUT
IN
OUT
CODEC_3.3V
+
+
C3
R77
C6
+
C12
C13
C15
(short)
+
C1
0.1u
C2
0.1u
C4
0.1u
C5
0.1u
10u
470u
0.1u
0.1u
VREF
VA
47u
47u
AGND
AGND
D
C
B
A
D
C
B
A
Bias
T3
TA48M33F
R500
10
for 74HC14/74LVC157
IN
OUT
+3.3V
AVDD
+
C7
0.1u
C8
0.1u
C9
C10
C11
(short)
L5
PORT1
VCC
47u
0.1u
0.1u
3
1
2
+3.3V
AVDD
C16
C17
2
1
+
GND
OUT
C18
10u
R1
0.1u
10u
TORX141
OPT
BNC
C19
0.1u
470
JP2
RX3
R2
J1
18k
C22
C23
C20
10u
C21
0.1u
BNC_RX
+
+
0.47u
U1
R3
75
0.1u
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
RX
VCOM
AINR+
AINR-/NC
AINL+
AINL-/NC
AOUTR+
AOUTR-
AOUTL+
AOUTL-
DGND
VD
VT
ADMODE
DEM0
PDN
DFS0
CSN/DIF
CCLK/CKS1
CDTI/CKS0
OVFL/DZFL
AOUTR+
AOUTR-
AOUTL+
AOUTL-
AINR+
AINL+
VREF
AINR-
AINL-
INT1
VREF
+
C24
C25
AGND
AGND
VA
AK4620B
1
2
3
4
5
6
7
8
9
36
10u
0.1u
CODEC_3.3V
+3.3V
IPS0/RX4
AVSS
DIF0/RX5
TEST2
DIF1/RX6
AVSS
DIF2/RX7
IPS1/IIC
P/SN
INT0
OCKS0/CSN
OCKS1/CCLK
CM1/CDTI
CM0/CDTO
PDN
VA
P/S
ADMODE
DEM0
C26
R4
AGND
R6
35
34
33
32
31
30
29
28
27
26
25
OCKS0
OCKS1
CM1
CM0
PDN
P/S
MCLK
LRCK/DSDR
BICK/DCLK
SDTO
SDTI/DSDL
OVFR/DZFR
R5
51
5p
DIF0/RX5
PDN
DFS0
XTI
XTO
U2
AK4114
51
CSN/DIF
CCLK/CKS1
CDTI/CKS0
X1
C27
R7
51
XTI
XTO
XTI
XTO
DAUX
MCKO2
BICK
5p
24.576MHz
10
11
12
XTL0
XTL1
XTL0
XTL1
VIN
51
SDTO
DIF2-0="100"; MSB justified; Master Mode
OVFL/DZFL
PORT2
IN
R8
51
C130
C131 C132 C133
OVFR/DZFR
3
2
+3.3V
SW1
(open)
10p (open)(open)
VCC
+3.3V
1
2
3
4
5
6
7
14
13
12
11
10
9
1
GND
C28
0.1u
+3.3V
TOTX141
C29
10u
AK4114 Mode_setting
+
+3.3V
SW3
JP7
C31
TEST1
1
2
3
4
5
6
7
14
13
12
11
10
9
OPT
BNC
C30
0.1u
0.1u
8
C32
10u
AK4620 Mode_setting
J6
R78
5.1
T4
DA02
TX
R183
240
BNC_TX
8
RP2
RP1
7
6
5
4
3
2
1
XTL1
XTL0
TX
XTL1
XTL0
R184
150
7
6
5
4
3
2
1
P/S
P/S
DIF0/RX5
OCKS1
OCKS0
CM1
ADMODE
DEM0
DFS0
DIF
DIF0/RX5
OCKS1
OCKS0
CM1
ADMODE
DEM0
DFS0
DIF
1:1
CM0
CKS1
CKS0
CM0
CKS1
CKS0
+3.3V
+3.3V
47K
47K
R11
10k
R12
R13
10k
D1
R10
10k
10k
R14
PORT3
1S1588
SW2
U3A
U3B
1
2
3
4
5
10 CSN
U4
1
2
3
4
9
8
7
6
CCLK
CDTI
PDN
470
2
3
5
4
1A
1B
2A
2B
3A
3B
4A
4B
1Y
CSN/DIF
C33
0.1u
74HC14_0
74HC14_0
DIF
H
L
R16
470
R15
470
7
2Y
3Y
4Y
CCLK/CKS1
CDTI/CKS0
6
CKS1
CKS0
CR-I/F
11
10
14
13
9
PDN
12
1
15
A/B
G
P/S
Title
74LVC157
AKD4620B-B
Size
A3
Document Number
Rev
1
AK4620B
Date:
Monday, June 12, 2006
Sheet
1
of
2
1
5
4
3
2
5
4
3
2
1
C34
J2
SINGLE
DIFF
JP3
LIN
LIN
R19
4.7k
R18
910
47u
R17
47k
VOP_ADC-
VOP_ADC-
C35
C36 (open)
C37
3.3n
NJM5534D
U6
470p
+
C38
0.1u
C39
10u
R20
C40
47u
R21
3k
R22
22
R101
0
C41
100u
R23
330
R24
180
4.7k
SINGLE
DIFF
-
JP4
AINL
2
3
D
C
B
A
D
C
B
A
+
C42
0.1u
C43
10u
-
1
2
3
3
2
AOUTL+
+
AINL+
+
1
6
U8A
+
C44
100p
-
U5A
NJM5532
R25
10k
R26
560
NJM5532
C45
3.9n
VOP_ADC+
VOP_ADC+
R28
C47
10u
C48
1n
+
C49
10n
C46
0.1u
910
R27
680
R29
620
R30
(short)
VOP_ADC-
C50
C51
100p
R31
1.2k
C55
(short)
C54
(open)
R32
100
J3
LOUT
-
+
C52
100p
C53
(open)
R34
(short)
2
3
470p
6
C57
3.3n
C58
47u
R38
3k
R33
620
R36
(open)
C56
(open)
NJM5534D
Bias
R37
10k
R40
22
U7
+
-
+
C59
0.1u
C60
10u
R39
560
C61
1n
6
5
NJM5534D
7
AINL-
R102
0
C62
100u
R41
330
R42
180
U5B
U9
NJM5532
3
AOUTL-
+
-
6
C63
100p
2
VOP_ADC+
+
C64
0.1u
C65
10u
R43
10k
R44
10k
+
C66
3.9n
C67
0.1u
C68
10u
C70
10u
+
C69
0.1u
R45
680
C71
100p
R46
1.2k
C73
J4
RIN
C72
100p
VOP_DAC+
VOP_DAC-
SINGLE
DIFF
JP5
RIN
R48
910
47u
R47
47k
R49
4.7k
C74
3.3n
VOP_ADC-
VOP_ADC-
NJM5534D
U11
C75
+
C77 (open)
C76
10u
C78
0.1u
R103
0
C79
100u
R50
330
R51
180
470p
+
C80
0.1u
C81
10u
3
AOUTR+
+
R52
4.7k
6
C83
R53
47u 3k
R54
22
C82
100p
2
-
SINGLE
DIFF
JP6
AINR
-
6
5
-
+
R55
10k
R56
560
7
2
3
AINR+
+
C84
3.9n
1
U10B
NJM5532
U12A
C86
10u
C87
1n
NJM5532
+
C85
0.1u
VOP_ADC+
R57
680
R58
620
R59
(short)
VOP_ADC+
R61
910
C88
100p
R60
1.2k
C93
(short)
C90
10n
C92
(open)
R62
100
J5
ROUT
VOP_ADC-
-
C89
100p
C91
(open)
R64
(short)
2
3
C94
6
+
C96
3.3n
R63
620
R65
(open)
C95
(open)
NJM5534D
470p
U13
+
C97
0.1u
C98
10u
R66
560
C99
1n
NJM5534D
C100
47u
R69
3k
R104
0
C101
100u
R70
330
R71
180
Bias
R68
10k
R72
22
U14
-
+
6
5
3
AOUTR-
+
-
7
6
AINR-
C102
100p
2
U12B
NJM5532
R73
10k
+
C103
3.9n
C104
0.1u
C105
10u
VOP_ADC+
+
C106
0.1u
C107
10u
R74
10k
C109
10u
+
C108
0.1u
R75
680
C110
100p
R76
1.2k
for NJM5532
C111
100p
VOP_ADC-
+
+
+
+
VOP_ADC-
VOP_ADC-
C113
10u
C114
0.1u
C115
10u
C116
0.1u
C117
10u
C118
0.1u
C119
10u
C120
0.1u
-
-
6
2
7
1
+
+
5
3
U8B
NJM5532
U10A
NJM5532
for NJM5532
VOP_ADC+
VOP_ADC+
VOP_ADC+
+
+
+
+
C122
10u
C123
0.1u
C124
10u
C125
0.1u
C126
10u
C127
0.1u
C128
10u
C129
0.1u
R503
R505
VOP_ADC-
VOP_DAC-
VOP_ADC+
10
10
R502
R504
-15V
VOP_DAC+
VOP+
+15V
L6
10
10
L7
1
2
1
2
(short)
+
C112
47u
(short)
+
C121
47u
Title
Size
AKD4620B-B
Document Number
Rev
1
A2
Analog_I/O
Date:
Monday, June 12, 2006
1
Sheet
of
2
2
5
4
3
2
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