AKD4626A-B [AKM]
Multi-channel Audio CODEC.; 多通道音频编解码器。
| 型号： | AKD4626A-B |
| 厂家： | 
ASAHI KASEI MICROSYSTEMS |
| 描述： | Multi-channel Audio CODEC. |
| 文件： | 总44页 (文件大小：462K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ASAHI KASEI
[AKD4626A-B]
AKD4626A-B
AK4626A Evaluation board Rev.0
GENERAL DESCRIPTION
The AKD4626A-B is an evaluation board for the AK4626A, the Multi-channel Audio CODEC. The
AKD4626A-B also has the digital audio interface and can achieve the interface with digital audio systems
via opt-connector or BNC connector.
Ordering guide
AKD4626A-B
--- AK4626A Evaluation board Rev.0
(Cable for connecting with printer port of IBM-AT compatible PC
and control software are packed with this.)
FUNCTION
On-board analog input buffer circuit
Compatible with 2 types of interface
- DIT(AK4103A)/DIR(AK4112B) with optical output/input and BNC input
- Direct interface with AC3 decoder by 10pin header
10pin header for serial control interface
-15V +15V
GND
Regulator
LIN
Input
Buffer
RIN
Control Data
BNC In
10pin Header
LOUT1
ROUT1
LOUT2
ROUT2
LOUT3
ROUT3
LOUT4
ROUT4
AK4112B(DIR)
AK4103A(DIT)
AK4626A
Opt In
Output
Buffer
Opt Out
AC3
10pin Header
Fig 1. AKD4626A-B Block Diagram
*Circuit diagram and PCB layout are attached at the end of this manual.
<KM079800>
2005/11
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ASAHI KASEI
[AKD4626A-B]
Operation sequence
(1) Set up the power supply lines.
[+12V]
(orange jack) = +12 ∼ +15V
[-12V]
[AGND] (black jack)
[DGND] (black jack)
(blue jack)
= -12 ∼ -15V
= 0V
= 0V
Each supply line should be distributed from the power supply unit.
±12V are supplied to analog interface.
+12V is regulated to +5V and +3.3V by regulators(T1,T2).
+5V is supplied to digital interface, AK4626A and TVDD of AK4112B.
+3.3V is supplied to AVDD and DVDD of AK4112B and TVDD of AK4626A.
(2) Set up the evaluation mode and jumper pins. (See p.6.)
(3) Power on.
The AK4626A, AK4112B and AK4103A should be reset once bringing PDN(SW1) “L” upon power-up.
PORT1
uP-I/F
(4) Set up software.
10
9
The control mode of AK4626A and AK4112B is fixed to “serial”.
CSN
CCLK
CDTI
The AKD4626A-B can be controlled via the printer port (parallel port) of IBM-AT
compatible PC. Connect PORT1(uP-I/F) with PC by 10-line flat cable
packed with the AKD4626A-B.
CDTO
2
1
Take care of the direction of connector. There is a mark at pin#1.
The pin layout of PORT1 is as Figure 2.
Figure 2. PORT1 pin layout
<KM079800>
2005/11
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ASAHI KASEI
[AKD4626A-B]
Evaluation mode
1) Evaluation of ADC
TOTX176 is used for digital output. Clock mode of the AK4112B should be set to PLL mode or X’tal mode.
2) Evaluation of DAC
TORX176 or BNC is used for digital input. Clock mode of the AK4112B should be set to PLL mode. “4112A”
should be selected on JP4,5,6 and 7.
3) Loopback mode
Clock mode of the AK4112B should be set to PLL mode or X’tal mode. “4112A” should be selected
on JP4,5,6 and 7.
4) Evaluation of DAC using DSP
“DSP” should be selected on JP4,5,6 and 7.
Evaluation mode
ADC
AK4112B clock set-up
CM1= “0”, CM0= “1”(X’tal mode)
JP4,5,6,7 Used I/F
SHORT
TOTX176
optical output
DAC
Loopback
Using DSP
CM1= “0”, CM0= “0”(PLL mode)
CM1= “0”, CM0= “1”(X’tal mode)
CM1= “0”, CM0= “0”(PLL mode)
SHORT
SHORT
OPEN
PORT5(10-pin Header)
(Note.)1. Software “4112.exe” packed with the AKD4626A-B is used for set-up of the AK4112B.
2. CM1 and CM0 bits are D5 and D4 of Addr=00H, respectively
Table 2.Evalution mode
DIP Switch set up. (See the datasheet of AK4626A and AK4103A)
1. DFS_4529(SW2-1) set up of AK4626A Sampling speed(fs).
DFS_4529
OFF
Sampling Speed (fs)
Default
Normal Speed Mode
Double Speed Mode
32kHz~48kHz
64kHz~96kHz
ON
Table 3. Set up of Sampling Speed (fs)
2. V(SW2-2) set up of for AK4103AValidity detect.
V
Validity
Default
OFF
ON
Valid
Invalid
Table 4. Set up of Validity
3. FS3(SW2-3) FS2(SW2-4) set up of AK4103A sampling frequency setting.
FS3
OFF
OFF
ON
FS2
OFF
ON
OFF
ON
Sampling frequency setting
44.1kHz
48kHz
Reserved
32kHz
Default
ON
Table 5. Set up of sampling frequency setting
<KM079800>
2005/11
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ASAHI KASEI
[AKD4626A-B]
4. CKS1(SW2-5) set up of AK4103A System Clock .
CKS1
OFF
ON
MCLK
256fs
512fs
fs
Default
28k-108kHz
28k-54kz
Table 6.Set up of System Clock
5. DIF0(SW2-6) set up of AK4103A Audio Serial Interface Format.
DIF0
Audio Serial
LRCK
BICK
Interface Format
Default
OFF
ON
24bit, Left justified
24bit, I2S
H/L
L/H
48fs-128fs
48fs-128fs
Table 7. Set up of Audio Serial Interface Format
Jumper pin set up
[JP1]<GND> (open) ---Analog GND and Digital GND
[JP4,5,7] (SDTI1,2,3) --- AK4626A SDTI1,2,3 input source select
<DSP> (open) : Serial Data is input from DSP via PORT4.
<4112A> (short) : Serial Data is input from AK4112B SDTO. <default>
[JP3] (V/TX)
<V>
--- AK4112B V/TX output select.
: Validity.
<default>
<TX>
: Transmit channel (through data)
[JP2](OPT/COAX) --- The source of the biphase signal input to the AK4112B
<OPT_IN>
<RX2>
: Optical input to RX1 of AK4112B
: BNC input to RX1 of AK4112B
<default>
The function of the toggle SW.
[SW1] : Resets the AK4626A, AK4112B and AK4103A. Keep “H” during normal operation.
The indication content for LED.
[LE1] (DZF1)
: Zero detection
[LE2] (DZF2_OVF) : Zero detection or Overflow Detection
[LE3] (ERF)
[LE4] (FS96)
[LE5] (AUTO)
[LE6] (V)
: AK4112B unlock and parity error output.
: AK4112B 96kHz sampling detect.
: AK4112B AC-3/MPEG detect.
: AK4112B Validity detect
<KM079800>
2005/11
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ASAHI KASEI
[AKD4626A-B]
Consideration for analog input circuit
3.0Vpp
Op-amp circuit
NJM4580
AK4626A
6.0Vpp
Signal
330
22u
+
-
RIN 32
330
LIN 31
Same circuit
1) Gain
Gain of analog input circuit is
330/(330+330) = -6.02dB.
Therefore input level for this board is
+0.51dBV(=3.0Vpp)+6.02dB
= +6.53dBV = 6.00Vpp = 2.12Vrms.
2) S/N of op-amp circuit (Theory: BW=20k+A)
Non-inverting amp is implemented on board. The output noise level of op-amp circuit is
-126.01dBV = -132.54dB (0dB=+6.53dBV).
S/N of ADC is
103.6dB (measurement).
Therefore total S/N of op-amp circuit and ADC is
103.59dB (measurement: 103.6dB).
<KM079800>
2005/11
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ASAHI KASEI
[AKD4626A-B]
Consideration for analog output circuit
3.0Vpp
6.0Vpp
Signal
NJM4580
22u
AK4626A
ROUT1
220
28
27
26
25
24
23
+
-
10k
Same circuit
Same circuit
Same circuit
Same circuit
Same circuit
330p
LOUT1
ROUT2
LOUT2
ROUT3
LOUT3
4.7k
4.7k
1) Frequency response of HPF
The HPF is implemented on board to cancel the DC offset of analog output of AK4626A.
Frequency response of 1st-order HPF
| Amplitude |2 = 1/{1+(fc/f)2}; fc=1/2πRC=0.7Hz@R=10k,C=22u
fin
20Hz
Frequency Response
-0.006dB
2) Gain, S/N and frequency response of op-amp circuit
1st-order filter with non-inverting amp is implemented on board to double the analog output level and attenuate out-of-band
noise.
a) Gain
The gain is
1+4.7k/4.7k = +6.02dB.
Therefore the output level of this board is
0.51dBV(=3.0Vpp) + 6.02dB
= 6.53dBV = 6.00Vpp = 2.12Vrms.
b) S/N (Theory: BW=20k+A)
The output noise level of non-inverting amp
-110.36dBV = -116.89dB (0dB=6.53dBV)
S/N of DAC is
106.3dB (measurement)
Therefore total S/N of op-amp circuit and DAC is
105.94dB (measurement: 106.1dB).
<KM079800>
2005/11
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ASAHI KASEI
[AKD4626A-B]
c) Frequency response of filter
Frequency response of the 1st-order filter
| Amplitude |2 = K*{1+(f/fc2)2}/{1+(f/fc1)2};
K = 1+4.7k/4.7k = 2,
fc1 = 1/2πRC = 102.7kHz@R=4.7k,C=330p,
fc2 = K*fc1 = 205.3kHz
Frequency response referenced to output level of this board is as following table:
fin
DC
20kHz
40kHz
80kHz
145kHz
-3dB
∞
-6dB
Frequency Response
0dB
-0.121dB
-0.452dB
-1.448dB
If the frequency response of filter influences the system, 1st-order LPF is also available as the following figure:
3.0Vpp
6.0Vpp
Signal
LPF
220
NJM4580
22u
AK4626A
ROUT1
28
27
26
25
24
23
+
-
10k
Same circuit
3300p
LOUT1
ROUT2
LOUT2
ROUT3
LOUT3
4.7k
Same circuit
Same circuit
Same circuit
Same circuit
4.7k
Frequency response of this LPF
| Amplitude |2 = 1/{1+(f/fc)2};
fc = 1/2πRC = 219kHz@R=220,C=3300p
Frequency response referenced to output level of this board is as following table:
fin
DC
20kHz
40kHz
80kHz
219kHz
-3dB
∞
-∞dB
Frequency Response
0dB
-0.036dB
-0.142dB
-0.543dB
The total frequency response of this board is sum of the external filter and internal LPF of AK4626A.
These filters are effective to attenuate the high frequency noise since some measurement units is sensitive for out-of-band noise.
<KM079800>
2005/11
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ASAHI KASEI
[AKD4626A-B]
2. Control Software Manual
Set-up of evaluation board and control software
1. Set up the AKD4626A-B according to previous term.
2. Connect IBM-AT compatible PC with AKD4626A-B by 10-line type flat cable (packed with AKD4626A-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 “AKD4626A-B Evaluation Kit” into the CD-ROM drive.
4. Access the CD-ROM drive and double-click the icon of “akd4626a.exe” to set up the control program.
5. Then please evaluate according to the follows.
Operation flow
Keep the following flow.
1. Set up the control program according to explanation above.
2. Click “Port Reset” button.
3. Click “Write default” button
Explanation of each buttons
1. [Port Reset] :
2. [Write default] :
3. [All Write] :
4. [Function1] :
5. [Function2] :
6. [Function3] :
7. [Function4] :
8. [Function5]:
Set up the USB interface board (AKDUSBIF-A) when using the board.
Initialize the register of the AK4642EN.
Write all registers that is currently displayed.
Dialog to write data by keyboard operation.
Dialog to write data by keyboard operation.
The sequence of register setting can be set and executed.
The sequence that is created on [Function3] can be assigned to buttons and executed.
The register setting that is created by [SAVE] function on main window can be assigned to
buttons and executed.
9. [SAVE] :
10. [OPEN] :
11. [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.
<KM079800>
2005/11
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ASAHI KASEI
[AKD4626A-B]
Explanation of each dialog
1. [Write Dialog]: Dialog to write data by mouse operation
There are dialogs corresponding to each register.
Click the [Write] button corresponding to each register to set up the dialog. If you check the check box, data
becomes “H” or “1”. If not, “L” or “0”.
If you want to write the input data to the AK4642EN, click [OK] button. If not, click [Cancel] button.
2. [Function1 Dialog] : Dialog to write data by keyboard operation
Address Box: 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 AK4642EN, click [OK] button. If not, click [Cancel] button.
3. [Function2 Dialog] : Dialog to evaluate DATT
There are dialogs corresponding to register of 03h and 04h.
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 AK4642EN 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 AK4642EN, click [OK] button. If not, click [Cancel] button.
<KM079800>
2005/11
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ASAHI KASEI
[AKD4626A-B]
4. [SAVE] and [OPEN]
4-1. [SAVE]
All of current register setting values displayed on the main window are saved to the file. The extension of file name is
“akr”.
<Operation flow>
(1) Click [SAVE] Button.
(2) Set the file name and click [SAVE] Button. The extension of file name is “akr”.
4-2. [OPEN]
The register setting values saved by [SAVE] are written to the AK4642EN. The file type is the same as [SAVE].
<Operation flow>
(1) Click [OPEN] Button.
(2) Select the file (*.akr) and Click [OPEN] Button.
<KM079800>
2005/11
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ASAHI KASEI
[AKD4626A-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 1. Window of [F3]
<KM079800>
2005/11
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ASAHI KASEI
[AKD4626A-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 2 opens.
Figure 2. [F4] window
<KM079800>
2005/11
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ASAHI KASEI
[AKD4626A-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 3. ( In case that the selected sequence file name is
“DAC_Stereo_ON.aks”)
Figure 3. [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.
<KM079800>
2005/11
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ASAHI KASEI
[AKD4626A-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 4 opens.
Figure 4. [F5] window
7-1. [OPEN] buttons on left side and [WRITE] button
(1) Click [OPEN] button and select the register setting file (*.akr).
(2) Click [WRITE] button, then the register setting is executed.
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.
<KM079800>
2005/11
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ASAHI KASEI
[AKD4626A-B]
AK4112B Control Program ver 1.0 operation manual
Set-up of evaluation board and control software
This board is used AK4112B as “DIR”. This software must set up when Evaluation of DAC using DSP and
Clock Mode selected X’tal.(See P3. (4)).
This evaluation board does not correspond to I2C control.
1. Set up the AKD4628 according to above mentioned setting.
2. Connect IBM-AT compatible PC with AKD4628 by 10-line type flat cable (packed with AKD4628). Take care of
the direction of 10pin header. (Please install the driver in the CD-ROM-disk 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-disk labeled “AKD4628 Control Program ver 1.0” into the CD-ROM-disk drive.
4. Access the CD-ROM-disk drive and double-click the icon of “akd4112.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.
2. Click “Port Setup” button.
3. Then set up the dialog and input data.
Explanation of each buttons
1. [Port Setup] :
set up the printer port.
2. [Write default] : initialize the register of AK4112B.
3. [All read] :
4. [Read] :
5. [Write] :
read all registers of AK4112B.
read data from each register.
write data to each register.
If you want to write the input data to AK4112B, click “OK” button. If not, click “Cancel” button.
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.
<KM079800>
2005/11
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ASAHI KASEI
[AKD4626A-B]
MEASUREMENT RESULTS
1) ADC part
[Measurement condition]
• Measurement unit : Audio Precision, System two, Cascade
• MCLK
: 256fs
• BICK
: 64fs
• fs
: 48kHz, 96kHz
• BW
: 10Hz∼20kHz(fs=48kHz), 10Hz∼48kHz(fs=96kHz)
• Bit
: 24bit
• Power Supply
• Interface
• Temperature
: AVDD=DVDD=5V, TVDD=3.3V
: DIT(AK4103A)
: Room
fs=48kHz
Parameter
S/(N+D)
DR
Input signal
1kHz, -0.5dB 20kLPF
1kHz, -60dB
no signal
Measurement filter
Lch
Rch
95.2dB
99.7dB
102.4dB
99.8dB
102.6dB
96.4dB
99.5dB
102.4dB
99.8dB
102.8dB
20kLPF
20kLPF+A-weighted
20kLPF
S/N
20kLPF+A-weighted
fs=96kHz
Parameter
S/(N+D)
DR
Input signal
1kHz, -0.5dB fs/2
1kHz, -60dB
Measurement filter
Lch
Rch
92.6dB
97.8dB
104.9dB
97.9dB
105.2dB
94.1dB
97.8dB
104.9dB
97.9dB
105.4dB
fs/2
20kHz+A-weighted
fs/2
20kHz+A-weighted
S/N
no signal
<KM079800>
2005/11
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ASAHI KASEI
[AKD4626A-B]
2) DAC part
[Measurement condition]
• Measurement unit : Audio Precision, System two, Cascade(fs=48kHz, 96kHz)
• MCLK
• BICK
: 256fs
: 64fs
• fs
: 48kHz, 96kHz
• BW
: 10Hz∼22kHz (fs=48kHz), 10Hz∼40kHz (fs=96kHz)
• Bit
: 24bit
• Power Supply
• Interface
• Temperature
: AVDD=DVDD=5V, TVDD=3.3V
: DIR(AK4112B)
: Room
fs=48kHz
Parameter
S/(N+D)
DR
Input signal
1kHz, 0dBFS 20kLPF
1kHz, -60dBFS
no signal
Measurement filter
Lch
Rch
97.0dB
102.5dB
105.0dB
103.0dB
105.0dB
95.9dB
102.5dB
105.0dB
103.0dB
105.0dB
20kLPF
22kLPF+A-weighted
20kLPF
S/N
22kLPF+A-weighted
fs=96kHz
Parameter
S/(N+D)
DR
Input signal
1kHz, 0dBFS 40kHzLPF
1kHz, -60dBFS
Measurement filter
Lch
Rch
94.9dB
101.7dB
106.3dB
101.8dB
106.7dB
94.2dB
101.5dB
106.1dB
101.7dB
106.5dB
40kHzLPF
22kHz+A-weighted
40kHz
S/N
no signal
22kHz+A-weighted
<KM079800>
2005/11
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ASAHI KASEI
[AKD4626A-B]
1.ADC
AKM
(ADC fs=48kHz)
AK4626A ADC FFT Plot
AVDD=DVDD=TVDD=5V, fs=48kHz, Input Level=-0.5dBFS, fin=1kHz
+0
-10
-20
-30
-40
-50
-60
-70
-80
-90
d
B
F
S
-100
-110
-120
-130
-140
-150
-160
-170
-180
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
FFT (Input=-0.5dBFS, fin=1kHz)
AKM
AK4626A ADC FFT Plot
AVDD=DVDD=TVDD=5V, fs=48kHz, Input Level=-60dBFS, fin=1kHz
+0
-10
-20
-30
-40
-50
-60
-70
-80
d
B
F
S
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
FFT (Input=-60dBFS, fin=1kHz)
<KM079800>
2005/11
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ASAHI KASEI
[AKD4626A-B]
(ADC fs=48kHz)
AKM
AK4626A ADC FFT Plot
AVDD=DVDD=TVDD=5V, fs=48kHz, fin=None
+0
-10
-20
-30
-40
-50
-60
-70
-80
-90
d
B
F
S
-100
-110
-120
-130
-140
-150
-160
-170
-180
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
FFT (noise floor)
<KM079800>
2005/11
- 19 -
ASAHI KASEI
[AKD4626A-B]
(ADC fs=48kHz)
AKM
AK4626A ADC THD+N vs Input Level
AVDD=DVDD=TVDD=5V, fs=48kHz, fin=1kHz
-60
-65
-70
-75
-80
-85
d
B
F
-90
S
-95
-100
-105
-110
-115
-120
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
THD + N vs Amplitude (fin=1kHz)
AKM
-70
AK4626A ADC THD+N vs Input Frequency
AVDD=DVDD=TVDD=5V, fs=48kHz, Input Level=-0.5dBFS
-75
-80
-85
-90
d
B
F
S
-95
-100
-105
-110
-115
-120
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
THD + N vs Input Frequency (Input=-0.5dBFS)
<KM079800>
2005/11
- 20 -
ASAHI KASEI
[AKD4626A-B]
(ADC fs=48kHz)
AKM
AK4626A ADC Linearity
AVDD=DVDD=TVDD=5V, fs=48kHz, fin=1kHz
+0
-10
-20
-30
-40
-50
d
B
F
-60
S
-70
-80
-90
-100
-110
-120
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Linearity (fin=1kHz)
AKM
+0
AK4626A ADC Frequency Response
AVDD=DVDD=TVDD=5V, fs=48kHz, Input Level=-0.5dBFS, fin=1kHz
-0.1
-0.2
-0.3
-0.4
d
B
-0.5
F
S
-0.6
-0.7
-0.8
-0.9
-1
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Frequency Response (Input Level=-0.5dBFS)
(including input RC filter)
<KM079800>
2005/11
- 21 -
ASAHI KASEI
[AKD4626A-B]
(ADC fs=48kHz)
AKM
AK4626A ADC Crosstalk
AVDD=DVDD=TVDD=5V, fs=48kHz, Input Level=-0.5dBFS
-80
-85
-90
-95
-100
-105
-110
d
-115
B
-120
-125
-130
-135
-140
-145
-150
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Crosstalk (Blue= Rch, Red= Lch)
<KM079800>
2005/11
- 22 -
ASAHI KASEI
[AKD4626A-B]
(ADC fs=96kHz)
AKM
AK4626A ADC FFT Plot
AVDD=DVDD=TVDD=5V, fs=96kHz, Input Level=-0.5dBFS, fin=1kHz
+0
-10
-20
-30
-40
-50
-60
-70
-80
-90
d
B
F
S
-100
-110
-120
-130
-140
-150
-160
-170
-180
40 50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
FFT (Input=-0.5dBFS, fin=1kHz)
AKM
AK4626A ADC FFT Plot
AVDD=DVDD=TVDD=5V, fs=96kHz, Input Level=-60dBFS, fin=1kHz
+0
-10
-20
-30
-40
-50
-60
-70
-80
d
B
F
S
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
40 50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
FFT (Input=-60dBFS, fin=1kHz)
<KM079800>
2005/11
- 23 -
ASAHI KASEI
[AKD4626A-B]
(ADC fs=96kHz)
AKM
AK4626A ADC FFT Plot
AVDD=DVDD=TVDD=5V, fs=96kHz, fin=None
+0
-10
-20
-30
-40
-50
-60
-70
-80
-90
d
B
F
S
-100
-110
-120
-130
-140
-150
-160
-170
-180
40 50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
FFT (Noise floor)
<KM079800>
2005/11
- 24 -
ASAHI KASEI
[AKD4626A-B]
(ADC fs=96kHz)
AKM
AK4626A ADC THD+N vs Input Level
AVDD=DVDD=TVDD=5V, fs=96kHz, fin=1kHz
-60
-65
-70
-75
-80
-85
d
B
F
-90
S
-95
-100
-105
-110
-115
-120
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
THD + N vs Amplitude (fin=1kHz)
AKM
-70
AK4626A ADC THD+N vs Input Frequency
AVDD=DVDD=TVDD=5V, fs=96kHz, Input Level=-0.5dBFS
-75
-80
-85
-90
d
B
-95
F
S
-100
-105
-110
-115
-120
40 50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
THD + N vs Input Frequency (Input Level=-0.5dBFS)
<KM079800>
2005/11
- 25 -
ASAHI KASEI
[AKD4626A-B]
(ADC fs=96kHz)
AKM
AK4626A ADC Linearity
AVDD=DVDD=TVDD=5V, fs=96kHz, fin=1kHz
+0
-10
-20
-30
-40
-50
d
B
F
-60
-70
S
-80
-90
-100
-110
-120
-130
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Linearity (fin=1kHz)
AKM
+0
AK4626A ADC Frequency Response
AVDD=DVDD=TVDD=5V, fs=96kHz, Input Level=-0.5dBFS, fin=1kHz
-0.1
-0.2
-0.3
-0.4
d
B
-0.5
F
S
-0.6
-0.7
-0.8
-0.9
-1
40 50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Frequency Response(Input Level=-0.5dBFS)
(including input RC filter)
<KM079800>
2005/11
- 26 -
ASAHI KASEI
[AKD4626A-B]
(ADC fs=96kHz)
AKM
AK4626A ADC Crosstalk
AVDD=DVDD=TVDD=5V, fs=96kHz, Input Level=-0.5dBFS
-80
-85
-90
-95
-100
-105
-110
d
-115
B
-120
-125
-130
-135
-140
-145
-150
20
50
100
200
500
1k
Hz
2k
5k
10k
20k
40k
Crosstalk (Blue= Rch, Red= Lch)
<KM079800>
2005/11
- 27 -
ASAHI KASEI
[AKD4626A-B]
2.DAC
AKM
(DAC fs=48kHz)
AK4626A FFT Plot
AVDD=DVDD=TVDD=5V, fs=48kHz, Input Level=0dBFS, fin=1kHz
+0
-10
-20
-30
-40
-50
-60
-70
d
B
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
r
A
-180
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
FFT (Input=0dBFS, fin=1kHz)
AKM
AK4626A FFT Plot
AVDD=DVDD=TVDD=5V, fs=48kHz, Input Level=-60dBFS, fin=1kHz
+0
-10
-20
-30
-40
-50
-60
-70
d
B
r
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
A
-180
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
FFT (Input=-60dBFS, fin=1kHz)
<KM079800>
2005/11
- 28 -
ASAHI KASEI
[AKD4626A-B]
(DAC fs=48kHz)
AKM
AK4626A FFT Plot
AVDD=DVDD=TVDD=5V, fs=48kHz, fin=None
+0
-10
-20
-30
-40
-50
-60
-70
d
B
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
r
A
-180
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
FFT (Noise floor)
AKM
AK4626A FFT Plot(Out-of-band noize)
AVDD=DVDD=TVDD=5V, fs=48kHz, fin=None
+0
-10
-20
-30
-40
-50
-60
-70
d
B
r
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
A
-180
20
50
100
200
500
1k
2k
5k
10k
20k
50k
100k
Hz
FFT (Out-of-band noise)
<KM079800>
2005/11
- 29 -
ASAHI KASEI
[AKD4626A-B]
(DAC fs=48kHz)
AKM
AK4626A DAC THD+N vs Input Level
AVDD=DVDD=TVDD=5V, fs=48kHz, fin=1kHz
-80
-85
-90
-95
d
B
-100
-105
-110
-115
r
A
-120
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
THD + N vs Amplitude (fin=1kHz)
AKM
AK4626A DAC THD+N vs Input Frequency
AVDD=DVDD=TVDD=5V, fs=48kHz, Input Level=0dBFS
-80
-85
-90
-95
-100
-105
-110
-115
d
B
r
B
-120
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
THD + N vs Input Frequency (Input=0dBFS)
<KM079800>
2005/11
- 30 -
ASAHI KASEI
[AKD4626A-B]
(DAC fs=48kHz)
AKM
AK4626A Linearity
AVDD=DVDD=TVDD=5V, fs=48kHz, fin=1kHz
+0
-10
-20
-30
-40
-50
d
B
r
-60
-70
A
-80
-90
-100
-110
-120
-130
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
Linearity (fin=1kHz)
AKM
AK4626A Frequency Response
AVDD=DVDD=TVDD=5V, fs=48kHz, Input Level=0dBFS
+0.5
+0.4
+0.3
+0.2
+0.1
d
B
r
+0
-0.1
-0.2
-0.3
-0.4
A
-0.5
2k
4k
6k
8k
10k
Hz
12k
14k
16k
18k
20k
Frequency Response (Input Level=0dBFS)
(including external RC filter)
<KM079800>
2005/11
- 31 -
ASAHI KASEI
[AKD4626A-B]
(DAC fs=48kHz)
AKM
AK4626A Crosstalk(Upper@1kHz; Lch--->Rch, Lower@1kHz; Rch--->Lch)
AVDD=DVDD=TVDD=5V, fs=48kHz, Input Level=0dBFS
-80
-82.5
-85
-87.5
-90
-92.5
-95
-97.5
d
B
-100
-102.5
-105
-107.5
-110
-112.5
-115
-117.5
-120
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Crosstalk (Blue= Rch, Red= Lch)
<KM079800>
2005/11
- 32 -
ASAHI KASEI
[AKD4626A-B]
(DAC fs=96kHz)
AKM
AK4626A FFT Plot
AVDD=DVDD=TVDD=5V, fs=96kHz, Input Level=0dBFS, fin=1kHz, Notch=on
+0
-10
-20
-30
-40
-50
-60
-70
d
B
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
r
A
-180
40 50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
FFT (Input=0dBFS, fin=1kHz, Notch)
AKM
AK4626A FFT Plot
AVDD=DVDD=TVDD=5V, fs=96kHz, Input Level=-60dBFS, fin=1kHz
+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
FFT (Input=-60dBFS,fin=1kHz)
<KM079800>
2005/11
- 33 -
ASAHI KASEI
[AKD4626A-B]
(DAC fs=96kHz)
AKM
AK4626A FFT Plot
AVDD=DVDD=TVDD=5V, fs=96kHz, fin=None
+0
-10
-20
-30
-40
-50
-60
-70
d
B
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
r
A
-180
40 50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
FFT (Noise floor)
AKM
AK4626A FFT Plot(Out-of-band noize)
AVDD=DVDD=TVDD=5V, fs=96kHz, fin=None
+0
-10
-20
-30
-40
-50
-60
-70
d
B
r
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
A
-180
20
50
100
200
500
1k
2k
5k
10k
20k
50k
100k
Hz
FFT (Out-of-band noise)
<KM079800>
2005/11
- 34 -
ASAHI KASEI
[AKD4626A-B]
(DAC fs=96kHz)
AKM
AK4626A DAC THD+N vs Input Level
AVDD=DVDD=TVDD=5V, fs=96kHz, fin=1kHz
-80
-85
-90
-95
d
B
-100
-105
-110
-115
r
A
-120
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
THD + N vs Amplitude (fin=1kHz)
AKM
AK4626A DAC THD+N vs Input Frequency
AVDD=DVDD=TVDD=5V, fs=96kHz, Input Level=0dBFS
-80
-85
-90
-95
-100
-105
-110
-115
d
B
r
B
-120
20
50
100
200
500
1k
Hz
2k
5k
10k
20k
40k
THD + N vs Input Frequency (Input=0dBFS)
<KM079800>
2005/11
- 35 -
ASAHI KASEI
[AKD4626A-B]
(DAC fs=96kHz)
AKM
AK4626A Linearity
AVDD=DVDD=TVDD=5V, fs=96kHz, fin=1kHz
+0
-10
-20
-30
-40
-50
d
B
r
-60
-70
A
-80
-90
-100
-110
-120
-130
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
Linearity (fin=1kHz)
AKM
AK4626A Frequency Response
AVDD=DVDD=TVDD=5V, fs=96kHz, Input Level=0dBFS
+0.5
+0.4
+0.3
+0.2
+0.1
+0
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
-0.9
d
B
r
A
-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
.Frequency Response (Input Level=0dBFS)
(including external RC filter)
<KM079800>
2005/11
- 36 -
ASAHI KASEI
[AKD4626A-B]
(DAC fs=96kHz)
AKM
AK4626A Crosstalk(Upper@1kHz; Lch--->Rch, Lower@1kHz; Rch--->Lch)
AVDD=DVDD=TVDD=5V, fs=96kHz, Input Level=0dBFS
-80
-82.5
-85
-87.5
-90
-92.5
-95
-97.5
d
B
-100
-102.5
-105
-107.5
-110
-112.5
-115
-117.5
-120
40 50
100
200
500
1k
2k
5k
10k
20k
40k
Hz
Crosstalk (Blue= Rch, Red= Lch)
<KM079800>
2005/11
- 37 -
ASAHI KASEI
[AKD4626A-B]
Revision History
Date
Manual
Board
Reason
Contents
(YY/MM/DD)
Revision
Revision
05/11/18
KM079800
0
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.
<KM079800>
2005/11
- 38 -
5
4
3
2
1
U1
AVDD1
+12V
1
R1
R4
R6
10k
10k
10k
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
C2
2.2u
U2A
NJM5532
CSN
CCLK
CDTI
L5V
A1
A2
A3
A4
A5
A6
A7
A8
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
C1
10u
J1
RIN
C3
22u
R7
330
3
+
-
CDTO
R2 470
R3 470
R5 470
C4
0.1u
C5
0.1u
2
PORT1
10 CSN
R8
(open)
1
2
3
4
5
R9
100
100
100
R10
330
9
8
7
6
CCLK
CDTI
CDTO
1
19
R11
R13
G1
G2
-12V
D
C
B
A
D
C
B
A
R1251
74HCT541
uP-I/F
U11
+12V
7
U2B
J2
LIN
C6
22u
R15
330
NJM5532
5
R14
100
+
-
4112B_MCKO1
6
DZF2/OVF
SDOS
I2C
DZF2/OVF
RIN
R16
(open)
R17
330
SMUTE
BICK
LIN
-12V
R18
R19
R20
R22
R23
R25
R26
100
100
100
100
100
100
100
4112B_BICK
4112B_LRCK
SDTI1
NC
LRCK
SDTI1
SDTI2
SDTI3
SDTO
DAUX
DFS0
TST5
ROUT1
LOUT1
ROUT2
LOUT2
ROUT3
LOUT3
ROUT1
LOUT1
ROUT2
LOUT2
ROUT3
LOUT3
AK4626A
SDTI2
R24
1k
LE1
SDTI3
AVDD2
4626A_SDTO
SDTI4
3
TR1
RN1202
(10k,10k)
DZF1
DZF1
DFS_4626A
T1
NJM78M05FA
L1
R28
1k
LE2
1
3
2
1
L5V
+12V
IN OUT
ROUT4
LOUT4
AVDD2
C8
47u
10u
+
C7
0.1u
3
TR2
RN1202
(10k,10k)
DZF2/OVF
DZF2/OVF
C9
0.1u
+3.3V
R29
100
L2
L3
C10
C11
0.1u
+
2
1
2
1
10u
AVDD1
AVDD2
PDN
(short)
10u
R30
5.1
C12
10u
+12V
C13
22u
J3
U7B
R31
NJM5532 220
7
5
6
ROUT4
+
-
ROUT4
+12V
U4B
NJM5532 220
7
+12V
U6B
C14
22u
C15
22u
R32
10k
+12V
U5B
NJM5532
7
C16
22u
J4
J5
R33
J6
R34
-12V
5
ROUT1
R36
220
5
6
NJM5532 220
7
ROUT3
+
-
+
-
ROUT1
ROUT3
5
6
ROUT2
+
-
ROUT2
R35
10k
6
R37
10k
R38
10k
330p C17
-12V
-12V
-12V
330p C18
330p C19
330p C20
R40
4.7K
R39
4.7k
R43
4.7K
R41
4.7k
+12V
U7A
C21
22u
R45
4.7K
R42
4.7k
R46
4.7K
R44
4.7k
J7
R47
NJM5532 220
1
+12V
C22
22u
3
2
LOUT4
+12V
U5A
+
-
LOUT4
J8
C23
22u
+12V
U6A
U4A
R49
J9
C24
22u
R48
10k
3
2
NJM5532 220
1
LOUT1
R51
J10
+
-
LOUT1
LOUT2
3
NJM5532 220
1
LOUT2
R53
NJM5532 220
1
+
-
-12V
R50
10k
3
2
LOUT3
+
-
LOUT3
R52
10k
2
R54
10k
330p C25
-12V
-12V
C27
C26
330p
-12V
330p
330p C28
R56
4.7K
R55
4.7k
R57
4.7k
R60
4.7K
R61
4.7K
R58
4.7k
R62
4.7K
R59
4.7k
Title
AKD4626A-B
AK4626A
Size
Document Number
Rev
A3
0
Date:
Sheet
1
of
3
Friday, November 18, 2005
5
4
3
2
1
5
4
3
2
1
JP1
GND
D
C
B
A
D
C
B
A
J11
(TX)
T2
DA02-F
R63
240
TX
TX
U8
1
2
28
27
26
25
24
23
22
21
20
19
18
17
16
15
+3.3V
DVDD
CM0/CDTO
CM1/CDTI
OCKS1/CCLK
OCKS0/CSN
MCKO1
MCKO2
DAUX
CDTO
R64
150
+
C29
10u
C30
0.1u
1:1
DVSS
TVDD
V/TX
CDTI
CCLK
CSN
C31
10u
C32
0.1u
+
3
L5V
C33
4
V/TX
X1
12.288MHz
5p
5
XTI
4112B_MCKO1
4112B_MCKO2
4626A_SDTO
4112B_BICK
L5V
6
XTO
5p
C34
7
PDN
PDN
R65
LE3
U9A
1
2
8
R
BICK
74HCT14
R66
18k
1k
ERF
LE4
9
+3.3V
AVDD
AVSS
RX1
SDTO
4112B_SDTO
4112B_LRCK
C35
10u
L5V
+
R67
C36
0.1u
U9B
4
3
L4
10u
10
11
12
13
14
LRCK
JP2
OPT/COAX
74HCT14
PORT2
1k
FS96
LE5
6
5
4
3
2
1
OPT
6
GND
VCC
GND
OUT
ERF
R68
C37
0.1u
U9C
6
5
+
C38
10u
COAX
5
R69
TORX176
RX2/DIF0
RX3/DIF1
RX4/DIF2
FS96
74HCT14
1k
AUTO
LE6
470
+3.3V
P/SN
V/TX
JP3
R70
D1
U9D
8
J12
COAX
C39
0.1u
3
1
V
9
1S1588
2
AUTO
V/TX
74HCT14
TX
TX
1k
V
R71
75
AK4112B
R72
47k
T3
LP2950A
1
3
+3.3V
OUT IN
L5V
C40
47u
+
C41
0.1u
Title
AKD4626A-B
AK4112B
Size
Document Number
Rev
A3
0
Date:
Sheet
of
Friday, November 18, 2005
2
3
5
4
3
2
1
5
4
3
2
1
L5V
L5V
L5V
PORT3
5
6
4
3
2
1
D2
R74
10k
SW2
5
IN
1S1588
D
C
B
A
1
2
3
4
5
6
12
11
10
9
8
7
D
C
B
A
VCC
IF
GND
U9F
U9E
C42
0.1u
13
12
11
10
PDN
6
R73
1k
CKS1
DIF0
L5V
H
L
TOTX176(ADC)
74HCT14
74HCT14
C43
0.1u
MDOE
SW1
PDN
RP1
U10
6
5
4
3
2
1
DFS_4626A
V
FS3
V
V1
TRANS
PDN
MCLK
SDTI
BICK
U1
DIF2
DIF1
DIF0
TXP
TXN
VSS
VDD
PDN
FS2
CKS1
DIF0
4112B_MCKO1
4626A_SDTO
4112B_BICK
4112B_LRCK
LRCK
FS0/CSN
47k
C48
0.1u
C49
FS1/CDTI CKS1
FS2/CCLK CKS0
FS3/CDTO BLS
+
10u
FS2
FS3
C1
ANS
AK4103A
R77 100
R76 100
R78 100
R79 100
R80 100
for NJM5532 x5
4112B_MCKO2
4112B_MCKO1
4112B_BICK
-12V
L5
PORT4
2
1
-12V
MCKO1
BICK
LRCK
SDTO
SDTI4
MCKO2
GND
SDTI1
SDTI2
SDTI3
1
2
3
4
5
10
9
8
7
6
C50
47u
+
(short)
+
+
+
+
+
SDTI1
SDTI2
SDTI3
SDTI4
4112B_LRCK
AC3
C51
0.1u
C52
10u
C53
0.1u
C54
10u
C55
0.1u
C56
10u
C57
0.1u
C58
10u
C59
0.1u
C60
10u
DSP
DSP
DSP
DSP
JP4
SDTI2
JP5
SDTI3
+12V for NJM5532 x5
L6
JP6
SDTI4
JP7
SDTI1
4112B
4112B
2
1
+12V
4112B
4112B
+
(short)
C61
47u
+
+
+
+
+
R81 100
4112B_SDTO
C62
0.1u
C63
10u
C64
0.1u
C65
10u
C66
0.1u
C67
10u
C68
0.1u
C69
10u
C70
0.1u
C71
10u
for 74HCT14,
74HCT541
L5V
C72
0.1u
C73
0.1u
Title
Size
AKD4626A-B
Interface
Document Number
Rev
A3
0
Date:
Sheet
of
Friday, November 18, 2005
3
3
5
4
3
2
1
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