AKM AKD4620B

ASAHI KASEI
[AKD4620B-B]
AKD4620B-B
Evaluation board AK4620B
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
Regulator
AGND DGND
BNC
LIN
RIN
Input
Buffer
AK4114
(DIR&DIT)
AK4620B
Opt In
Opt Out
BNC
LOUT
ROUT
Output
Buffer
10pin Header
Control Data
Figure 1. AKD4620B-B Block Diagram
* Circuit diagram are attached at the end of this manual.
<KM078900>
2005/05
-1-
ASAHI KASEI
[AKD4620B-B]
Evaluation Board Manual
„ Operation sequence
1) Set up the power supply line
[+15V]
(green)
= +15V
[-15V]
(blue)
= -15V
[GND]
(black)
= 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.
<KM078900>
2005/05
-2-
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
Jumper
JP3
(LIN)
JP4
(AINL)
JP5
(RIN)
JP6
(AINR)
SW1-2
(ADMODE)
Single-ended
SINGLE
SINGLE
SINGLE
SINGLE
OFF
Differential
DIFF
DIFF
DIFF
DIFF
Table 1. Analog Input Mode
(Default)
ON
* As for analog input circuit, please see the following item “Analog Input Buffer Circuit”.
1-2) Sampling speed & MCLK frequency
a) parallel mode
SW1-1
(P/S)
ON
ON
MCLK
Sampling
Frequency of
Speed of
AK4620B
AK4620B
Normal
OFF
OFF
ON
ON
OFF
512fs
Speed
Double
ON
OFF
ON
OFF
OFF
256fs
Speed
Table 2. Sampling Speed & Master clock Frequency in parallel mode
SW1-4
(DFS0)
SW1-6
(CKS1)
SW1-7
(CKS0)
SW3-4
(OCKS1)
SW3-5
(OCKS0)
(Default)
* Parallel mode does not support quad speed mode.
b) serial mode
SW1
(P/S)
DFS1
bit
DFS0
bit
OFF
0
0
OFF
0
1
OFF
1
0
Sampling
Speed of
AK4620B
Normal
0
0
1
ON
OFF
Speed
Double
0
0
1
OFF
OFF
Speed
0
0
1
ON
ON
Quad Speed
Table 3. Sampling Speed & Master clock Frequency in serial mode
CMODE
bit
CKS1
bit
CKS0
bit
SW3-4
(OCKS1)
SW3-5
(OCKS0)
MCLK
Frequency of
AK4620B
512fs
256fs
128fs
* 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).
<KM078900>
2005/05
-3-
ASAHI KASEI
[AKD4620B-B]
1-3) AK4114’s master clock mode & reference X’tal frequency
Mode
1
SW3-6
(CM1)
OFF
SW3-1
(XTL1)
ON
SW3-7
(CM0)
ON
PLL
X'tal
Clock source
SDTO
OFF
ON
X'tal
DAUX
Table 4. AK4114’S Clock Operation Mode
SW3-2
(XTL0)
OFF
(Default)
X’tal Frequency
24.576MHz
Table 5. Reference X’tal frequency
(Default)
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")
Jumper
JP2
(RX3)
Normal & Double Speed
OPT or BNC
Quard Speed
Table 6. DIR Input Interface
BNC
2-2) Sampling speed & MCLK frequency
a) parallel mode
MCLK
Sampling
Frequency of
Speed of
AK4620B
AK4620B
Normal
OFF
OFF
OFF
256fs
Speed
Normal
ON
ON
OFF
512fs
Speed
Double
ON
OFF
OFF
256fs
Speed
Sampling Speed & Master clock Frequency in parallel mode
SW1-1
(P/S)
SW1-4
(DFS0)
SW1-6
(CKS1)
ON
OFF
OFF
ON
OFF
OFF
ON
ON
OFF
Table 7.
SW1-7
(CKS0)
SW3-4
(OCKS1)
SW3-5
(OCKS0)
* Parallel mode does not support quad speed mode.
<KM078900>
2005/05
-4-
ASAHI KASEI
[AKD4620B-B]
b) serial mode
SW1-1
(P/S)
DFS1
bit
OFF
0
OFF
0
OFF
0
OFF
1
Sampling
Speed of
AK4620B
Normal
0
0
0
0
OFF
OFF
Speed
Normal
0
0
0
1
ON
OFF
Speed
Double
1
0
0
1
OFF
OFF
Speed
0
0
0
1
ON
ON
Quad Speed
Table 8. Sampling Speed & Master clock Frequency in serial mode
DFS0
bit
CMODE
bit
CKS1
bit
CKS0
bit
SW3-4
(OCKS1)
SW3-5
(OCKS0)
MCLK
Frequency of
AK4620B
256fs
512fs
256fs
128fs
* 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
Mode
0
SW3-6
(CM1)
OFF
SW3-1
(XTL1)
ON
SW3-7
PLL
X'tal
Clock source
(CM0)
OFF
ON
OFF
PLL
Table 9. Clock Operation Mode
SDTO
RX
SW3-2
X’tal Frequency
(XTL0)
ON
OFF
Table 10. Reference X’tal frequency
<KM078900>
2005/05
-5-
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
Jumper
JP3
(LIN)
Single-ended
SINGLE
JP4
(AINL)
JP5
(RIN)
SINGLE SINGLE
DIFF
DIFF
DIFF
Table 11. Analog Input Mode
Differential
JP6
(AINR)
SW1-2
(ADMODE)
SINGLE
OFF
DIFF
ON
* As for analog input circuit, please see the following item “Analog Input Buffer Circuit”.
3-2) DIT output interface (Default: JP7="OPT")
Jumper
JP7
(TX)
Normal & Double Speed
OPT or BNC
Quard Speed
Table 12. DIT Output Interface
BNC
3-3) Sampling speed & MCLK frequency
a) parallel mode
SW1-1
(P/S)
ON
ON
ON
MCLK
Sampling
Frequency of
Speed of
AK4620B
AK4620B
Normal
OFF
OFF
OFF
OFF
OFF
256fs
Speed
Normal
OFF
OFF
ON
ON
OFF
512fs
Speed
Double
ON
OFF
ON
OFF
OFF
256fs
Speed
Table 13. Sampling Speed & Master clock Frequency in parallel mode
SW1-4
(DFS0)
SW1-6
(CKS1)
SW1-7
(CKS0)
SW3-4
(OCKS1)
SW3-5
(OCKS0)
* Parallel mode does not support quad speed mode.
<KM078900>
2005/05
-6-
ASAHI KASEI
[AKD4620B-B]
b) serial mode
SW1-1
(P/S)
DFS1
bit
DFS0
bit
L
0
0
L
0
0
L
0
1
L
1
0
Sampling
Speed of
AK4620B
Normal
0
0
0
OFF
OFF
Speed
Normal
0
0
1
ON
OFF
Speed
Double
0
0
1
OFF
OFF
Speed
0
0
1
ON
ON
Quad Speed
Table 14. Sampling Speed & Master clock Frequency in serial mode
CMODE
bit
CKS1
bit
CKS0
bit
SW3-4
(OCKS1)
SW3-5
(OCKS0)
MCLK
Frequency of
AK4620B
256fs
512fs
256fs
128fs
* 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).
Mode
0
SW3-6
(CM1)
OFF
SW3-1
(XTL1)
1
SW3-7
PLL
X'tal
Clock source
(CM0)
OFF
ON
OFF
PLL
Table 15. Clock Operation Mode ( PLL)
SDTO
RX
SW3-2
X’tal Frequency
(XTL0)
1
OFF
Table 16. Reference X’tal frequency(PLL)
3-4-2) X’tal is used as clock source
Mode
1
SW3-6
(CM1)
OFF
SW3-1
(XTL1)
1
SW3-7
PLL
X'tal
Clock source
(CM0)
ON
OFF
ON
X’tal
Table 17. Clock Operation Mode ( X’tal)
SDTO
DAUX
SW3-2
X’tal Frequency
(XTL0)
0
24.576MHz
Table 18. Reference X’tal frequency ( X’tal)
<KM078900>
2005/05
-7-
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
Mode
2
3
DIF
(SW1-5)
OFF
ON
SDTO
SDTI
LRCK
24bit MSB Justified
H/L
24bit MSB Justified
2
2
I S Compatible
L/H
I S Compatible
Table 19. Audio data format (parallel Mode)
BICK
≥48fs
≥48fs
(Default)
1-2) De-emphasis control in parallel mode
DEM0 pin
MODE
(SW1-3)
OFF
ON(44.1KHz)
ON
OFF
(Default)
Table 20. De-emphasis control (parallel mode)
1-3) parallel mode/ serial mode
P/S pin
MODE
(SW1-1)
OFF
Serial
ON
Parallel
Table 21. Set up P/S pin
(Default)
2) Set-up of SW3(AK4114’s mode set-up)
2-1) Audio data format
Mode
4
5
DIF0
(SW3-5)
L
H
SDTO
SDTI
24bit MSB Justified
24bit MSB Justified
I2S Compatible
I2S Compatible
Table22. Audio data format
LRCK
BICK
H/L
L/H
≥48fs
≥48fs
(Default)
* DIF1=L and DIF2=H are fixed in AKD4620B-B evaluation board.
<KM078900>
2005/05
-8-
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.
Connect
PC
10 wire
flat cable
10pin
Connector
CSN
CCLK
CDTI AKD4620A-B
CDTO
10pin Header
Figure 2. Connect of 10 wire flat cable
<KM078900>
2005/05
-9-
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
4.7k
470p
VP+
Analog In
47µ
3k
22
2.82Vpp
AIN+
VP9.3Vpp
Bias
NJM5532
910
VA
10k
47µ
3k
AK4620B
10n
470p
22
AIN-
0.1µ 10µ
Bias
10k
VA = 5V
VP+ = 15V
VP- = -15V
Bias
2.82Vpp
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
Signal
22u
+
Signal
22u
+
AK4620B
2 AINR+
3 AINR4 AINL+
5 AINL-
Figure 4. Input buffer circuit in Single-ended mode
<KM078900>
2005/05
- 10 -
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 ([email protected]=5.0V) by BNC.
+15
3.3n
+
AOUTL- +
10k
330
180
7
3
2 +
4
3.9n
-15
10u
0.1u
6
NJM5534D
+
10u
620
620
3.3n
+
100u
180
7
3
+
2 4
330
3.9n
680
2 - 4
+
7
100
6
Lch
3
1.0n NJM5534D
10u
0.1u
6
NJM5534D
1.2k
10k
AOUTL+ +
+10u
1.0n
1.2k
680
0.1u
560
0.1u
560
100u
+
0.1u
10u
+
10u
0.1u
Figure 5. Output buffer circuit
* AKM assumes no responsibility for the trouble when using the above circuit examples.
<KM078900>
2005/05
- 11 -
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-b0.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 “Write default” button.
3. Then set up the dialog and input data.
„ Explanation of each buttons
1. [Port Setup] :
2. [Write default] :
3. [All Write] :
4. [Function1] :
5. [Function2] :
6. [F3] :
7. [SAVE] :
8. [OPEN] :
9. [Write] :
Set up the printer port.
Initialize the register of AK4620B.
Write all registers that is currently displayed.
Dialog to write data by keyboard operation.
Dialog to evaluate IPGA and ATTL/ATTR.
Dialog of sequential writing.
Save the current register setting.
Write the saved values to all register.
Dialog to write data by mouse operation.
<KM078900>
2005/05
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ASAHI KASEI
[AKD4620B-B]
„ Explanation of each dialog
1. [Function1 Dialog] : Dialog to write data by keyboard operation
Address Box:
Data Box:
Input register address in 2 figures of hexadecimal.
Input register data in 2 figures of hexadecimal.
If you want to write the input data to AK4620B, click “OK” button. If not, click “Cancel” button.
2. [Function2 Dialog] : Dialog to evaluate IPGA, IATT and OATT
Address Box:
Input register address in 2 figures of hexadecimal.
Start Data Box:
Input start data in 2 figures of hexadecimal.
End Data Box:
Input end data in 2 figures of hexadecimal.
Interval Box:
Data is written to AK4620B 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 AK4620B, click “OK” button. If not, click “Cancel” button.
3. [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 AK4620B, click “OK” button. If not, click “Cancel” button.
<KM078900>
2005/05
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ASAHI KASEI
[AKD4620B-B]
„ 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.
„ Attention on the operation
If you set up Function1 or Function2 dialog, input data to all boxes. Attention dialog is indicated if you input data or
address that is not specified in the datasheet or you click “OK” button before you input data. In that case set up the dialog
and input data once more again. These operations does not need if you click “Cancel” button or check the check box.
<KM078900>
2005/05
- 14 -
ASAHI KASEI
[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.
<KM078900>
2005/05
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ASAHI KASEI
[AKD4620B-B]
Measurement Result Example
[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
Parameter
Input signal
Measurement filter
S/(N+D)
DR
DR
S/N
1kHz, -1dB
1kHz, -60dB
1kHz, -60dB
No input
20kLPF
20kLPF
20kLPF, A-weighted
20kLPF, A-weighted
Parameter
Input signal
Measurement filter
S/(N+D)
DR
DR
S/N
1kHz, -1dB
1kHz, -60dB
1kHz, -60dB
No input
40kLPF
40kLPF
40kLPF, A-weighted
40kLPF, A-weighted
Parameter
Input signal
Measurement filter
S/(N+D)
DR
DR
S/N
1kHz, -1dB
1kHz, -60dB
1kHz, -60dB
No input
40kLPF
40kLPF
40kLPF, A-weighted
40kLPF, A-weighted
Results
L ch
R ch
89.7dB
108.2dB
110.9dB
110.9dB
90.0dB
108.2dB
110.9dB
110.9dB
fs=96kHz
Results
L ch
R ch
89.2dB
104.8dB
110.7dB
110.7dB
89.5dB
104.7dB
110.7dB
110.7dB
fs=192kHz
<KM078900>
Results
L ch
R ch
89.0dB
104.8dB
110.6dB
110.5dB
89.3dB
104.8dB
110.6dB
110.5dB
2005/05
- 16 -
ASAHI KASEI
[AKD4620B-B]
2. ADC (Differential)
fs=44.1kHz
Parameter
Input signal
Measurement filter
S/(N+D)
DR
DR
S/N
1kHz, -1dB
1kHz, -60dB
1kHz, -60dB
No input
20kLPF
20kLPF
20kLPF, A-weighted
20kLPF, A-weighted
Parameter
Input signal
Measurement filter
S/(N+D)
DR
DR
S/N
1kHz, -1dB
1kHz, -60dB
1kHz, -60dB
No input
40kLPF
40kLPF
40kLPF, A-weighted
40kLPF, A-weighted
Parameter
Input signal
Measurement filter
S/(N+D)
DR
DR
S/N
1kHz, -1dB
1kHz, -60dB
1kHz, -60dB
No input
40kLPF
40kLPF
40kLPF, A-weighted
40kLPF, A-weighted
Parameter
Input signal
Measurement filter
S/(N+D)
DR
DR
S/N
1kHz, 0dB
1kHz, -60dB
1kHz, -60dB
“0” data
20kLPF
20kLPF
22kLPF, A-weighted
22kLPF, A-weighted
Parameter
Input signal
Measurement filter
S/(N+D)
DR
DR
S/N
1kHz, 0dB
1kHz, -60dB
1kHz, -60dB
“0” data
40kLPF
40kLPF
40kLPF, A-weighted
40kLPF, A-weighted
Parameter
Input signal
Measurement filter
S/(N+D)
DR
DR
S/N
1kHz, 0dB
1kHz, -60dB
1kHz, -60dB
“0” data
40kLPF
40kLPF
40kLPF, A-weighted
40kLPF, A-weighted
Results
L ch
R ch
100.7dB
111.8dB
114.5dB
114.5dB
101.5dB
111.8dB
114.4dB
114.4dB
fs=96kHz
Results
L ch
R ch
101.0dB
107.6dB
114.3dB
114.3dB
101.5dB
107.6dB
114.2dB
114.2dB
fs=192kHz
Results
L ch
100.8dB
107.5dB
113.8dB
113.8dB
R ch
101.4dB
107.4dB
114.0dB
114.0dB
3. DAC
fs=44.1kHz
Results
L ch
R ch
99.8dB
113.0dB
115.2dB
115.3dB
96.7dB
113.0dB
115.2dB
115.3dB
fs=96kHz
Results
L ch
R ch
99.3dB
110.3dB
115.3dB
115.3dB
96.8dB
110.4dB
115 .3dB
115.4dB
fs=192kHz
<KM078900>
Results
L ch
98.6dB
110.0dB
114.9dB
115.3dB
R ch
96.3dB
110.0dB
114.9dB
115.3dB
2005/05
- 17 -
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
d
B
F
S
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
5k
10k
20k
5k
10k
20k
Hz
Figure 6. 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
d
B
F
S
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
Hz
Figure 7. FFT (fin=1kHz, Input Level=-60dBFS)
<KM078900>
2005/05
- 18 -
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
d
B
F
S
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 8. FFT (Noise Floor)
AK4620B THD+N vs Input Level
VA=VT=5V, VD=3.3V, fs=44.1kHz
-80
-85
-90
-95
-100
-105
d
B
F
S
-110
-115
-120
-125
-130
-135
-140
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Figure 9. THD+N vs. Input level (fin=1kHz)
<KM078900>
2005/05
- 19 -
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
S
-110
-115
-120
-125
-130
-135
-140
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 10. 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
d
B
F
S
-60
-70
-80
-90
-100
-110
-120
-130
-140
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Figure 11. Linearity (fin=1kHz)
<KM078900>
2005/05
- 20 -
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
12k
14k
16k
18k
20k
5k
10k
20k
Hz
Figure 12. 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
Hz
Figure 13. Crosstalk
<KM078900>
2005/05
- 21 -
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
d
B
F
S
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
40
50
100
200
500
1k
2k
5k
10k
20k
40k
10k
20k
40k
Hz
Figure 14. 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
d
B
F
S
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
40
50
100
200
500
1k
2k
5k
Hz
Figure 15. FFT (fin=1kHz, Input Level=-60dBFS)
<KM078900>
2005/05
- 22 -
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
d
B
F
S
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
40
50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 16. FFT (Noise Floor)
AK4620B THD+N vs Input Level
VA=VT=5V, VD=3.3V, fs=96kHz
-80
-85
-90
-95
-100
-105
d
B
F
S
-110
-115
-120
-125
-130
-135
-140
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Figure 17. THD +N vs. Input level (fin=1kHz)
<KM078900>
2005/05
- 23 -
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
S
-110
-115
-120
-125
-130
-135
-140
40
50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 18. THD +N vs. Input Frequency (Input level=-1dBFS)
AK4620B Linearity
VA=VT=5V, VD=3.3V, fs=96kHz
+0
T
T
-10
-20
-30
-40
-50
d
B
F
S
-60
-70
-80
-90
-100
-110
-120
-130
-140
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Figure 19. Linearity (fin=1kHz)
<KM078900>
2005/05
- 24 -
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
22.5k
25k
27.5k
30k
32.5k
35k
37.5k
40k
Hz
Figure 20. Frequency Response
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 21. Crosstalk
<KM078900>
2005/05
- 25 -
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
d
B
F
S
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
90
200
500
1k
2k
5k
10k
20k
50k
80k
20k
50k
80k
Hz
Figure 22. 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
d
B
F
S
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
90
200
500
1k
2k
5k
10k
Hz
Figure 23. FFT (fin=1kHz, Input Level=-60dBFS)
<KM078900>
2005/05
- 26 -
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
d
B
F
S
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
90
200
500
1k
2k
5k
10k
20k
50k
80k
Hz
Figure 24. 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
S
-110
-115
-120
-125
-130
-135
-140
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Figure 25. THD+N vs. Input level (fin=1kHz)
<KM078900>
2005/05
- 27 -
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
S
-110
-115
-120
-125
-130
-135
-140
90
200
500
1k
2k
5k
10k
20k
50k
80k
-10
+0
Hz
Figure 26. THD+N vs. Input Frequency (Input level=-1dBFS)
AKM
AK4620 Linearity
VA=VT=5V, VD=3.3V, fs=192kHz
+0
T
-10
-20
-30
-40
-50
d
B
F
S
-60
-70
-80
-90
-100
-110
-120
-130
-140
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
dBr
Figure 27. Linearity (fin=1kHz)
<KM078900>
2005/05
- 28 -
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
d
B
F
S
-0.9
-1
-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
10k
20k
50k
80k
Hz
Figure 28. 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
d
B
-120
-125
-130
-135
-140
-145
-150
-155
-160
90
200
500
1k
2k
5k
Hz
Figure 29. Crosstalk
<KM078900>
2005/05
- 29 -
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
d
B
F
S
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
5k
10k
20k
5k
10k
20k
Hz
Figure 30. 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
d
B
F
S
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
Hz
Figure 31. FFT (fin=1kHz, Input Level=-60dBFS)
<KM078900>
2005/05
- 30 -
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
d
B
F
S
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 32. FFT (Noise Floor)
AK4620B THD+N vs Input Level
VA=VT=5V, VD=3.3V, fs=44.1kHz
-80
-85
-90
-95
-100
-105
d
B
F
S
-110
-115
-120
-125
-130
-135
-140
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Figure 33. THD+N vs. Input level (fin=1kHz)
<KM078900>
2005/05
- 31 -
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
S
-110
-115
-120
-125
-130
-135
-140
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 34. 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
d
B
F
S
-60
-70
-80
-90
-100
-110
-120
-130
-140
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Figure 35. Linearity (fin=1kHz)
<KM078900>
2005/05
- 32 -
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
12k
14k
16k
18k
20k
5k
10k
20k
Hz
Figure 36. 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
Hz
Figure 37. Crosstalk
<KM078900>
2005/05
- 33 -
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
d
B
F
S
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
40
50
100
200
500
1k
2k
5k
10k
20k
40k
10k
20k
40k
Hz
Figure 38. 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
d
B
F
S
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
40
50
100
200
500
1k
2k
5k
Hz
Figure 39. FFT (fin=1kHz, Input Level=-60dBFS)
<KM078900>
2005/05
- 34 -
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
d
B
F
S
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
40
50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 40. FFT (Noise Floor)
AK4620B THD+N vs Input Level
VA=VT=5V, VD=3.3V, fs=96kHz
-80
-85
-90
-95
-100
-105
d
B
F
S
-110
-115
-120
-125
-130
-135
-140
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Figure 41. THD +N vs. Input level (fin=1kHz)
<KM078900>
2005/05
- 35 -
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
S
-110
-115
-120
-125
-130
-135
-140
40
50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 42. THD +N vs. Input Frequency (Input level=-1dBFS)
AK4620B Linearity
VA=VT=5V, VD=3.3V, fs=96kHz
+0
-10
-20
-30
-40
-50
d
B
F
S
-60
-70
-80
-90
-100
-110
-120
-130
-140
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Figure 43. Linearity (fin=1kHz)
<KM078900>
2005/05
- 36 -
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
22.5k
25k
27.5k
30k
32.5k
35k
37.5k
40k
Hz
Figure 44. Frequency Response
AK4620B Crosstalk Lch :Red, Rch: Blue
VA=VT=5V, VD=3.3V, fs=96kHz
-80
-85
-90
-95
-100
-105
-110
-115
d
B
-120
-125
-130
-135
-140
-145
-150
-155
-160
40
50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 45. Crosstalk
<KM078900>
2005/05
- 37 -
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
d
B
F
S
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
90
200
500
1k
2k
5k
10k
20k
50k
80k
20k
50k
80k
Hz
Figure 46. 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
d
B
F
S
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
90
200
500
1k
2k
5k
10k
Hz
Figure 47. FFT (fin=1kHz, Input Level=-60dBFS)
<KM078900>
2005/05
- 38 -
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
d
B
F
S
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
90
200
500
1k
2k
5k
10k
20k
50k
80k
Hz
Figure 48. 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
S
-110
-115
-120
-125
-130
-135
-140
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Figure 49. THD+N vs. Input level (fin=1kHz)
<KM078900>
2005/05
- 39 -
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
S
-110
-115
-120
-125
-130
-135
-140
90
200
500
1k
2k
5k
10k
20k
50k
80k
-10
+0
Hz
Figure 50. 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
d
B
F
S
-60
-70
-80
-90
-100
-110
-120
-130
-140
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
dBr
Figure 51. Linearity (fin=1kHz)
<KM078900>
2005/05
- 40 -
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
d
B
F
S
-0.9
-1
-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
45k
50k
55k
60k
65k
70k
75k
80k
Hz
Figure 52. 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
d
B
-120
-125
-130
-135
-140
-145
-150
-155
-160
90
200
500
1k
2k
5k
10k
20k
50k
80k
Hz
Figure 53. Crosstalk
<KM078900>
2005/05
- 41 -
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
A
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
5k
10k
20k
5k
10k
20k
Hz
Figure 54. 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
A
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
Hz
Figure 55. FFT (fin=1kHz, Input Level=-60dBFS)
<KM078900>
2005/05
- 42 -
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
A
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 56. FFT (Noise Floor)
AK4620B THD+N vs Input Level
VA=VT=5V, VD=3.3V, fs=44.1kHz
-80
-85
-90
-95
-100
d
B
r
A
-105
-110
-115
-120
-125
-130
-135
-140
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
Figure 57. THD+N vs. Input level (fin=1kHz)
<KM078900>
2005/05
- 43 -
ASAHI KASEI
[AKD4620B-B]
(fs=44.1kHz)
AK4620B THD+N vs Input Frequency
VA=VT=5V, VD=3.3V, fs=44.1kHz
-80
T
-85
-90
-95
-100
d
B
r
A
-105
-110
-115
-120
-125
-130
-135
-140
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 58. 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
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
Figure 59. Linearity (fin=1kHz)
<KM078900>
2005/05
- 44 -
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
A
+0
-0.2
-0.4
-0.6
-0.8
-1
2k
4k
6k
8k
10k
12k
14k
16k
18k
20k
5k
10k
20k
Hz
Figure 60. 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
d
B
-110
-115
-120
-125
-130
-135
-140
20
50
100
200
500
1k
2k
Hz
Figure 61. Crosstalk
<KM078900>
2005/05
- 45 -
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
A
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
5k
10k
20k
50k
100k
Hz
Figure 62. Out-of-band Noise
<KM078900>
2005/05
- 46 -
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
A
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
40
50
100
200
500
1k
2k
5k
10k
20k
40k
5k
10k
20k
40k
Hz
Figure 63. 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
A
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
40
50
100
200
500
1k
2k
Hz
Figure 64. FFT (fin=1kHz, Input Level=0dBFS, Notch Filter)
<KM078900>
2005/05
- 47 -
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
A
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
40
50
100
200
500
1k
2k
5k
10k
20k
40k
10k
20k
40k
Hz
Figure 65. 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
A
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
40
50
100
200
500
1k
2k
5k
Hz
Figure 66. FFT (Noise Floor)
<KM078900>
2005/05
- 48 -
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
d
B
r
A
-105
-110
-115
-120
-125
-130
-135
-140
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
Figure 67. 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
d
B
r
A
-105
-110
-115
-120
-125
-130
-135
-140
40
50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Figure 68. THD +N vs. Input Frequency (Input level=0dBFS)
<KM078900>
2005/05
- 49 -
ASAHI KASEI
[AKD4620B-B]
(fs=96kHz)
AK4620B Linearity
VA=VT=5V, VD=3.3V, fs=96kHz
+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
Figure 69. Linearity (fin=1kHz)
AK4620B Frequency Respons
VA=VT=5V, VD=3.3V, fs=96kHz
+1
+0.8
+0.6
+0.4
+0.2
d
B
r
A
+0
-0.2
-0.4
-0.6
-0.8
-1
2.5k
5k
7.5k
10k
12.5k
15k
17.5k
20k
22.5k
25k
27.5k
30k
32.5k
35k
37.5k
40k
Hz
Figure 70. Frequency Response (Input level=0dBFS)
<KM078900>
2005/05
- 50 -
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 71. Crosstalk
<KM078900>
2005/05
- 51 -
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
A
-90
-80
-100
-110
-120
-130
-140
-150
-160
90
200
500
1k
2k
5k
10k
20k
50k
80k
20k
50k
80k
Hz
Figure 72. 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
A
-100
-90
-110
-120
-130
-140
-150
-160
-170
-180
90
200
500
1k
2k
5k
10k
Hz
Figure 73. FFT (fin=1kHz, Input Level=0dBFS, Notch Filter)
<KM078900>
2005/05
- 52 -
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
A
-90
-80
-100
-110
-120
-130
-140
-150
-160
90
200
500
1k
2k
5k
10k
20k
50k
80k
20k
50k
80k
Hz
Figure 74. 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
A
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
90
200
500
1k
2k
5k
10k
Hz
Figure 75. FFT (Noise Floor)
<KM078900>
2005/05
- 53 -
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
d
B
r
A
-105
-110
-115
-120
-125
-130
-135
-140
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
Figure 76. 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
d
B
r
A
-105
-110
-115
-120
-125
-130
-135
-140
90
200
500
1k
2k
5k
10k
20k
50k
80k
Hz
Figure 77. THD+N vs. Input Frequency (Input level=0dBFS)
<KM078900>
2005/05
- 54 -
ASAHI KASEI
[AKD4620B-B]
(fs=192kHz)
AKM
AK4620 Linearity
VA=VT=5V, VD=3.3V, fs=192kHz
+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
Figure 78. 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
d
B
r
-0.4
-0.6
A
-0.8
-1
-1.2
-1.4
-1.6
-1.8
-2
5k
10k
15k
20k
25k
30k
35k
40k
45k
50k
55k
60k
65k
70k
75k
80k
Hz
Figure 79. Frequency Response (Input level=0dBFS)
<KM078900>
2005/05
- 55 -
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 80. Crosstalk
<KM078900>
2005/05
- 56 -
5
4
3
2
1
T1
VREF
T2
LP2950A
NJM78M05FA
VA
R501
OUT
C2
2
C1
3
0.1u
C3
+
0.1u
R77
(short)
10
C4
VREF
47u
IN
1
OUT
CODEC_3.3V
0.1u
C6
+
C5
2
IN
GND
3
GND
1
VOP+
0.1u
C12
+
10u
47u
VA
D
+
C13
C14
0.1u
470u
C15
0.1u
AGND
AGND
D
Bias
T3
TA48M33F
for 74HC14/74LVC157
IN
10
VCC
3
GND
OUT
2
1
1
C16
2
18k
C23
C20
0.47u
10u
48
47
46
45
44
43
42
41
40
39
38
37
C26
5p
DIF0/RX5
2
XTI
X1
C27
1
XTO
24.576MHz
XTL0
XTL1
INT1
IPS0/RX4
AVSS
DIF0/RX5
TEST2
DIF1/RX6
AVSS
DIF2/RX7
IPS1/IIC
P/SN
XTL0
XTL1
VIN
PORT2
AK4114
C28
TOTX141
+3.3V
0.1u
OPT
B
C29
10u
JP7
T4
DA02
BNC_TX
51
VCOM
AOUTR+
AINR+
AOUTRAINR-/NC
AOUTL+
AINL+
AOUTLAINL-/NC
DGND
VREF
VD
AGND
VT
AK4620A
VA
ADMODE
P/S
DEM0
MCLK
PDN
LRCK/DSDR
DFS0
BICK/DCLK
CSN/DIF
SDTO
CCLK/CKS1
SDTI/DSDL
CDTI/CKS0
OVFR/DZFR
OVFL/DZFL
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
AOUTR+
AOUTRAOUTL+
AOUTLC24
10u
ADMODE
DEM0
PDN
DFS0
CSN/DIF
CCLK/CKS1
CDTI/CKS0
C25
51
C130
C131 C132 C133
(open)
10p
AGND
0.1u
CODEC_3.3V
OVFR/DZFR
OVFL/DZFL
(open)(open)
1
2
3
4
5
6
7
C32
10u
RP2
7
6
5
4
3
2
1
R11
C33
U3B
2
74HC14_0
3
4
1
2
3
4
5
PDN
74HC14_0
0.1u
PORT3
10
9
8
7
6
CR-I/F
PDN
XTL1
XTL0
DIF0/RX5
OCKS1
OCKS0
CM1
CM0
14
13
12
11
10
9
8
R12
10k
CSN
CCLK
CDTI
RP1
XTL1
XTL0
DIF0/RX5
OCKS1
OCKS0
CM1
CM0
7
6
5
4
3
2
1
P/S
ADMODE
DEM0
DFS0
DIF
CKS1
CKS0
P/S
ADMODE
DEM0
DFS0
DIF
CKS1
CKS0
47K
R14
U4
R16
R15
470
470
470
DIF
CKS1
P/S
2
3
5
6
11
10
14
13
1A
1B
2A
2B
3A
3B
4A
4B
1
15
A/B
G
1Y
4
CSN/DIF
2Y
7
CCLK/CKS1
3Y
9
CDTI/CKS0
4Y
12
A
Title
74LVC157
Size
A3
Date:
4
B
R13
10k
CKS0
5
14
13
12
11
10
9
8
AK4620 Mode_setting
47K
10k
1
+3.3V
SW3
1
2
3
4
5
6
7
+3.3V
SW1
AK4114 Mode_setting
TEST1
0.1u
R10
10k
C
51
150
U3A
L
R7
XTO
+3.3V
D1
51
XTI
C31
C30
+3.3V
A
R6
51
5.1
240
R184
1S1588
VA
P/S
R5
BNC
1:1
SW2
OCKS0
OCKS1
CM1
CM0
PDN
VREF
AGND
R8
R78
TX
R183
TX
H
R4
+
0.1u
J6
AINL+
AINL-
+3.3V
+
GND
1
U1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
13
14
15
16
17
18
19
20
21
22
23
24
3
2
U2
INT0
OCKS0/CSN
OCKS1/CCLK
CM1/CDTI
CM0/CDTO
PDN
XTI
XTO
DAUX
MCKO2
BICK
SDTO
36
35
34
33
32
31
30
29
28
27
26
25
TVDD
DVSS
TX0
TX1
BOUT
COUT
UOUT
VOUT
DVDD
DVSS
MCKO1
LRCK
DIF2-0="100"; MSB justified; Master Mode
IN
VCC
0.1u
AINR+
AINR-
RX3
AVSS
RX2
TEST1
RX1
AVSS
RX0
AVSS
VCOM
R
AVDD
INT1
1
2
3
4
5
6
7
8
9
10
11
12
+3.3V
5p
AVDD
C21
0.1u
75
0.1u
R2
BNC
+
C
0.1u
0.1u
JP2
C22
R3
47u
C11
C19
RX3
RX
0.1u
C10
10u
+
OPT
BNC_RX
0.1u
C9
C18
R1
10u
470
J1
C8
AVDD
C17
+
0.1u
TORX141
+3.3V
+3.3V
+
C7
+
PORT1
(short)
OUT
+
L5
GND
R500
3
2
Document Number
AKD4620A-B
Tuesday, February 01, 2005
Sheet
1
Rev
1
AK4620A
1
of
2
5
4
3
2
1
C34
SINGLE
JP3
LIN
LIN
+
J2
R19
47u
DIFF
R17
R18
4.7k
47k
910
VOP_ADC-
VOP_ADCC35
C36 (open)
C37
3.3n
+
AINL+
7
AOUTL+
DIFF
C44
100p
U5A
R25
10k
NJM5532
8
8
1
R24
180
VOP_ADC+
3
+
2
-
C45
3.9n
VOP_ADC+
+
C42
0.1u
6
C46
0.1u
R27
680
10n
C51
100p
+
C49
VOP_ADC-
C50
C47
10u
C48
1n
R29
620
R30
(short)
R31
1.2k
C52
100p
470p
C53
(open)
R34
(short)
C54
(open)
2
U5B
8
NJM5532
10u
R41
330
R42
180
AOUTLC63
100p
VOP_ADC+
R43
R44
10k
10k
3
+
2
-
C66
3.9n
C71
100p
C73
SINGLE
JP5
RIN
RIN
DIFF
R47
R39
560
C61
1n
R36
(open)
U7
C56
(open)
NJM5534D
6
+
C67
0.1u
C69
0.1u
C68
10u
C70
10u
R46
1.2k
C72
100p
+
J4
C60
10u
J3
LOUT
U9
R45
680
C
+
C
VOP_DAC+
R48
47u
R49
47k
910
4.7k
C74
3.3n
VOP_ADCVOP_ADC-
C75
VOP_DACNJM5534D
+
C77 (open)
R50
330
R51
180
7
C79
100u
+
R103
0
470p
AOUTR+
R54
7
2
U10B
3
+
1
JP6
AINR
C82
100p
22
R55
10k
AINR+
3
+
2
-
C84
3.9n
DIFF
U11
C80
0.1u
6
C81
10u
R56
560
U12A
NJM5532
8
NJM5532
SINGLE
C76
10u
4
-
8
3k
+
5
47u
+
6
R53
-
4.7k
C83
4
4
R52
C78
0.1u
VOP_ADC+
C85
0.1u
R57
680
VOP_ADC+
+
0.1u
C62
100u
+
C65
R102
0
7
+
+
C64
C59
0.1u
AINL-
R33
620
NJM5534D
22
7
7
R40
-
5
4
6
+
3k
4
R38
47u
10k
+
R37
R32
100
+
C58
+
Bias
C55
(short)
6
3
C57
3.3n
D
C43
10u
R26
560
R28
910
C39
10u
U6
+
3
22
R23
330
4
2
JP4
AINL
C41
100u
4
1
U8A
NJM5532
SINGLE
R101
0
+
4
4
3k
R22
-
-
3
NJM5534D
C38
0.1u
47u
+
2
R21
+
D
C40
-
4.7k
+
470p
R20
C86
10u
C87
1n
R58
620
R59
(short)
R61
C89
100p
C91
(open)
R64
(short)
C92
(open)
2
5
22
C106
C107
0.1u
10u
+
AOUTR-
7
AINR-
C102
100p
R73
10k
NJM5532
VOP_ADC+
R74
7
R71
180
U12B
8
B
R72
R70
330
3
+
2
-
+
C98
10u
7
R66
560
C99
1n
C103
3.9n
J5
ROUT
R65
(open)
U13
C95
(open)
NJM5534D
U14
6
4
6
10k
C101
100u
+
4
3k
+
R68
-
47u
+
Bias
R104
0
R63
620
NJM5534D
C97
0.1u
R69
C104
0.1u
10k
C108
0.1u
+
470p
C100
R62
100
+
C96
3.3n
C93
(short)
6
3
+
R60
1.2k
10n
4
C88
100p
C90
VOP_ADCC94
-
910
+
B
C105
10u
C109
10u
R75
680
C110
100p
for NJM5532
4
4
2
-
3
+
7
U8B
NJM5532
8
+
8
+
5
+
6
+
VOP_ADC-
+
VOP_ADC-
R76
1.2k
C111
100p
VOP_ADC-
C113
C114
C115
C116
C117
C118
C119
C120
10u
0.1u
10u
0.1u
10u
0.1u
10u
0.1u
1
U10A
NJM5532
for NJM5532
VOP_ADC+
VOP_ADC+
VOP_ADC+
+
+
+
+
C122
C123
C124
C125
C126
C127
C128
C129
10u
0.1u
10u
0.1u
10u
0.1u
10u
0.1u
R503
R505
VOP_ADCA
VOP_ADC+
10
R504
VOP_DACL6
1
VOP_DAC+
+15V
10
(short)
+
C121
47u
10
L7
2
1
C112
A
10
R502
-15V
+
2
VOP+
(short)
Title
47u
Size
A2
Date:
5
4
3
2
Document Number
AKD4620A-B
Rev
Analog_I/O
Tuesday, February 01, 2005
Sheet
1
2
1
of
2