AK4649VN

[AKD4649-B]
AKD4649-B
AK4649 Evaluation board Rev.0
GENERAL DESCRIPTION
AKD4649-B is an evaluation board for the AK4649, Stereo CODEC with built-in MIC/SPK amplifier. The
AKD4649-B can evaluate A/D converter and D/A converter separately in addition to loop-back mode (A/D
→ D/A). The AKD4649-B also has the digital audio interface and can achieve the interface with digital
audio systems via opt-connector.
„ Ordering guide
AKD4649-B
---
Evaluation board for AK4649
(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
• DIT/DIR with optical input/output
• 10pin Header for serial control mode
5V
Regulator
GND
3.3V
PORT4
LIN1/
RIN1
Control Data
10pin Header
LIN2/
RIN2
PORT3
MIN
DSP
10pin Header
LOUT/
ROUT
AK4649
PORT1
Opt In
AK4114
Opt out
PORT2
Figure 1. AKD4649-B Block Diagram
* Circuit diagram and PCB layout are attached at the end of this manual
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BOARD OUTLINE CHART
■ Outline Chart
SPK
J4
J6
SPK-JACK
LOUT/ROUT
J2
MIN
U1
U3
E
PORT1
Opt In
J3
LIN2/RIN2
AK4649
LED1
A
PORT4
6
1
U4
U2
CTRL
J5
LIN1/RIN1
AK4114
PORT2
Opt Out
JP1
DGND
AGND
VCC
DSP
PORT3
Figure 2. AKD4649-B Outline Chart
■ Comment
(1) J2, J3, J5 (Mini Jacks)
Analog signal input.
(2) J4, J6 (Mini Jacks)
Analog signal output.
(3) VCC, AGND, DGND (Power Supply Terminal)
Connect power supply with these terminals.
(4) PORT1, PORT2 (Optical Connectors)
PORT1 (DIR) : Input optical signal (SPDIF, Fs:32~48kHz) to AK4114.
PORT2 (DIT) : Output optical signal (SPDIF, Fs:32~48kHz) from AK4114.
.
(5) PORT4 (10pin Header)
Control port. Connect the bundled cable into this port.
(6) PORT3 (10pin Header)
DSP port. MCLK, BICK, LRCK, SDTO and SDTI can be input/output from PORT3.
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Evaluation Board Manual
„ Operation sequence
1) Set up the power supply lines.
Name
VCC
AGND
DGND
Color
Red
Black
Black
Voltage
+5.0V
0V
0V
Comments
Attention
Regulator
Power line is needed for this jack.
Analog ground
Power line is needed for this jack.
Digital ground
Power line is needed for this jack.
Table 1 Set up of power supply lines
2) Set up the evaluation mode, jumper pins. (See the followings.)
3) Power on.
The AK4649 and AK4114 should be reset once bringing SW1 “L” upon power-up.
„ Evaluation mode
(1) Slave mode
(1-1) Evaluation of Recording block (MIC, ADC) using DIT of AK4114
(1-2) Evaluation of Playback block (SPK, Lineout) using DIR of AK4114
(1-3) Evaluation of Loop-back using AK4114 <Default>
(1-4) All interface signals including master clock are fed externally.
The AK4114’s audio interface format is fixed to MSB Justified.
(1-1) Evaluation of Recording block using DIT of AK4114
PORT2 (DIT) and X1 (X’tal) are used. DIT generates audio bi-phase signal from received data and which is
output through optical connector (TOTX141). Nothing should be connected to PORT1 (DIR) and PORT3
(DSP).
JP6
BICK2
JP7
LRCK2
JP8
LRCK
JP9
JP10
MCLK
BICK
JP11
SDTI
DIR
ADC
(1-2) Evaluation of Playback block using DIR of AK4114
PORT1 (DIR) is used. Nothing should be connected to PORT3 (DSP).
JP6
BICK2
JP7
LRCK2
JP8
LRCK
JP9
JP10
MCLK
BICK
JP11
SDTI
DIR
ADC
The AK4114 operates at fs of 32kHz or more. If the fs is slower than 32kHz,
any other evaluation mode without using DIR should be used.
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(1-3) Evaluation of Loop-back using AK4114 <Default>
X’tal oscillator (X1) is used. Nothing should be connected to PORT1 (DIR) and PORT3 (DSP).
JP6
BICK2
JP7
LRCK2
JP8
LRCK
JP9
JP10
MCLK
BICK
JP11
SDTI
DIR
ADC
The AK4114 operates at fs of 32kHz or more. If the fs is slower than 32kHz,
any other evaluation mode without using DIR should be used.
(1-4) All interface signals including master clock are fed externally.
PORT3 (DSP) is used. Nothing should be connected to PORT1 (DIR).
JP6
BICK2
JP7
LRCK2
JP8
LRCK
JP9
JP10
MCLK
BICK
JP11
SDTI
DIR
ADC
(2) Master mode
(2-1) Evaluation of Loop-back using MCLK of AK4114
(2-2) Master clock is fed externally
(2-1) Evaluation of Loop-back using MCLK of AK4114
X’tal oscillator (X1) is used. Nothing should be connected to PORT1 (DIR) and PORT3 (DSP). It can be
evaluated at internal loop-back mode (ADCPF = PFDAC bits = “1”). It is possible to evaluate at various
sampling frequencies using built-in AK4649’s PLL.
JP6
BICK2
JP7
LRCK2
JP8
LRCK
JP9
JP10
MCLK
BICK
JP11
SDTI
DIR
ADC
(2-2) Master clock is fed externally
PORT3 (DSP) is used and MCLK is fed from PORT3. Nothing should be connected to PORT1 (DIR). It can be
evaluated at internal loop-back mode (ADCPF = PFDAC bits = “1”). It is possible to evaluate at various
sampling frequencies using built-in AK4649’s PLL.
JP6
BICK2
JP7
LRCK2
JP8
LRCK
JP9
JP10
MCLK
BICK
JP11
SDTI
DIR
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„ In case of using the digital microphone
JP17
JP18
JP19
JP20
Analog MIC
LIN1
RIN1
Digital MIC
DMDAT
DMCLK
DMP: Supply the power to the digital microphone from DMP pin.
Don’t care
AVDD: Supply the power to the digital microphone from AVDD.
MPWR
DMP
Table 2 .The setting of jump pins for the digital microphone
„ Other jumper pins set up
1. JP1 (GND) : Connection between AGND and DGND.
OPEN : Both grounds are separated on board.
SHORT : Both grounds are connected on board. <Default>
2. JP2, JP3 : Connection of mic power.
OPEN: Mic power is not connected.
SHORT : Mic power is connected. <Default>
3. JP4, JP5 : Select speaker type.
EXT : SPP and SPN signals are output from J4.
Dynamic : Dynamic speaker <Default>
4. JP12, JP21, JP22, JP23 : Select I/F Mode.
3-wire : 3-wire Serial Mode.
I2C : I2C Bus Mode <Default>
5. JP13 (CAD0) : Select chip address in I2C Mode.
OPEN : Chip address (CAD0) = “1” <Default>
SHORT : Chip address (CAD0) = “0”
6. JP16 : Connection of MIN External Resistance.
OPEN : External Resistance Mode (BPM bit = “0”) <Default>
SHORT : Internal Resistance Mode (BPM bit = “1”)
„ The function of the toggle SW
[SW1] (PDN): Power down of AK4649 and AK4114. Keep “H” during normal operation.
„ Indication for LED
[LED1] (ERF): Monitor INT0 pin of the AK4114. LED turns on when some error has occurred to AK4114.
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„ Serial Control
The AK4649 can be controlled via the printer port (parallel port) of IBM-AT compatible PC. Connect PORT4
(CTRL) with PC by 10 wire flat cable packed with the AKD4649.
CSN
CCLK
CDTI
Connect
PC
AKD4649-B
10 wire
flat cable
10pin
Connector
10pin Header
Figure 3. Connect of 10 wire flat cable
The AK4649 supports 3-wire serial control mode and I2C-bus control mode (fast-mode, max : 400kHz).Please
Set the jump pins as the table 1 when you want to change another mode.
Mode
3-wire
I2C
JP12, JP21, JP22, JP23
3-wire
I2C (CAD0 = “0”)
I2C (CAD0 = “1”)
JP13
Open
Short
Open
Table 3 .Select Control Mode
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„ Analog Input/Output Circuits
(1) Input Circuits
1. MIN Input Circuit
J2
MIN
6
C14
1u
R15
20k
MIN
+
4
3
JP16
MIN
Figure 4. MIN Input Circuit
2. LINE1 Input Circuit
R1
2.2k
MPWR
R2
2.2k
J5
LIN1/RIN1
JP3
RIN1
6
C3
1u
RIN1
+
4
3
C2
1u
LIN1
+
JP2
LIN1
Figure 5. LIN1/RIN1 Input Circuit
3. LINE2 Input Circuit
J3
LIN2/RIN2
C19
1u
6
+
4
3
RIN2
C18
1u
+
LIN2
Figure 6. LIN2/RIN2 Input Circuit
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(2) Output Circuits
1.
STEREO LINE Output Circuit
C21
1u
+
R23
220
ROUT
4
3
R24
20k
C20
1u
J6
LOUT/ROUT
6
+
R21
220
LOUT
R22
20k
Figure 7 . STEREO LINE Output Circuit
2.
SPEAKER Output Circuit
JP5
SPP
Dy namic
3
4
EXT
6
SPKP
J4
SPK-JACK
SPK1
020S16
CN1
P
2
1
N
JP4
SPN
Dy namic
EXT
SPKN
Figure 8. SPEAKER Output Circuit
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Control Software Manual
„ Set-up of evaluation board and control software
1. Set up the AKD4649-B according to previous term.
2. Connect IBM-AT compatible PC with AKD4649-B by 10-line type flat cable (packed with AKD4649-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 “AKD4649-B Evaluation Kit” into the CD-ROM drive.
4. Access the CD-ROM drive and double-click the icon of “AKD4649.exe” to set up the control program.
5. Then please evaluate according to the follows.
„ Operation flow
Keep the following flow.
1. Set up the control program according to explanation above.
2. Click “Port Reset” button.
3. Click “Write default” button
„ Explanation of each buttons
1. [Port Reset] :
2. [Write default] :
3. [All Write] :
4. [Function1] :
5. [Function2] :
6. [Function3] :
7. [Function4] :
8. [Function5] :
9.[Write] :
10.[SAVE] :
11.[OPEN] :
Set up the port. When this is pushed, the printer port or USB port is selected automatically.
Initialize the register of the AK4649
Write all registers that is currently displayed
Dialog to write data by keyboard operation.
Dialog to evaluate IVL/R, OVL/R, DVOL.
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.
Dialog to write data by mouse operation.
Save the current register setting.
Write the save values to all register.
„ 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.
„ Explanation of each dialog
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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 AK4649, click [OK] button. If not, click [Cancel] button.
2. [Function1 Dialog] : Dialog to write data by keyboard operation
Address Box:
Data Box:
Input registers address in 2 figures of hexadecimal.
Input registers data in 2 figures of hexadecimal.
If you want to write the input data to the AK4649, click [OK] button. If not, click [Cancel] button.
3. [Function2 Dialog] : Dialog to evaluate volume.
There are dialogs corresponding to register of 09h, 0Ah, 0Ch, 0FH and 25H.
Address Box:
Input registers address in 2 figures of hexadecimal.
Start Data Box:
Input starts data in 2 figures of hexadecimal.
End Data Box:
Input end data in 2 figures of hexadecimal.
Interval Box:
Data is written to the AK4649 by this interval.
Step Box:
Data changes by this step.
Mode Select Box:
If you check this check box, data reaches end data, and returns to start data.
[Example] Start Data = 00, End Data = 09
Data flow: 00 01 02 03 04 05 06 07 08 09 09 08 07 06 05 04 03 02 01 00
If you do not check this check box, data reaches end data, but does not return to start data.
[Example] Start Data = 00, End Data = 09
Data flow: 00 01 02 03 04 05 06 07 08 09
If you want to write the input data to the AK4649, click [OK] button. If not, click [Cancel] button.
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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 AK4649. The file type is the same as [SAVE].
<Operation flow>
(1) Click [OPEN] Button.
(2) Select the file (*.akr) and Click [OPEN] Button.
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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 9. Window of [F3]
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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 10. [F4] window
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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 11. [F4] window(2)
(2) Click [START] button, then the sequence is executed.
6-2. [SAVE] and [OPEN] buttons on right side
[SAVE] : The name assign of sequence file displayed on [Function4] window can be saved to the file. The file name
is “*.ak4”.
[OPEN] : The name assign of sequence file(*.ak4) saved by [SAVE] is loaded.
6-3. Note
(1) This function doesn't support the pause function of sequence function.
(2) All files used by [SAVE] and [OPEN] function on right side need to be in the same folder.
(3) When the sequence is changed in [Function3], the sequence file (*.aks) should be loaded again in order to reflect the
change.
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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 12. [F5] window
7-1. [OPEN] buttons on left side and [WRITE] button
(1) Click [OPEN] button and select the register setting file (*.akr).
The register setting file name is displayed as shown in Figure 13. (In case that the selected file name is
“DAC_Output.akr”)
(2) Click [WRITE] button, then the register setting is executed.
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Figure 13. [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.
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8. [Filter Dialog]
A calculation of a coefficient of Digital Programmable Filter such as HPF,EQ filter ,a write to a register and check
frequency response such as HPF,EQ filter.
Window to show to Figure 14 opens when push a [Filter] button .
Figure 14. Main Window
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8-1. Setting of a parameter
(1) Please set a parameter of each Filter.
Item
Sampling Rate
FIL3
Cut Off Frequency
Filter type
Gain
HPF
Cut Off Frequency
Contents
Sampling frequency (fs)
Stereo separation emphasis filter cut cff
frequency
Type of stereo separation emphasis filter
Gain of stereo separation emphasis filter
Setting range
7350Hz ≤ fs ≤ 48000Hz
fs/10000 ≤ Cut Off Frequency ≤
(0.497 * fs)
LPF or HPF
–10dB ≤ Gain ≤ 0dB
High pass filter cut off frequency
fs/10000 ≤ Cut Off Frequency
≤ (0.497 * fs)
LPF
Cut Off Frequency
Low pass filter cut off frequency
fs/20 ≤ Cut Off Frequency ≤
(0.497 * fs)
EQ for Gain Compensation (EQ0)
Pole Frequency
Pole Frequency
Zero-point Frequency
Zero-point Frequency
Gain
5 Band Equalizer
EQ1-5 Center Frequency
Gain
EQ1-5 Center Frequency
EQ1-5 Band Width
EQ1-5 Band Width
(Note 1)
EQ1-5 Gain
EQ1-5 Gain
(Note 2)
Note 1. A gain difference is a bandwidth of 3dB from center frequency.
Note 2. When a gain is smaller than 0 , EQ becomes a notch filter.
fs/10000 ≤ Pole Frequency ≤
(0.497 * fs)
fs/10000 ≤ Zero-point Frequency
≤ (0.497 * fs)
0dB ≤ Gain ≤ +12dB
0Hz ≤ Center Frequency < (0.497
* fs)
1Hz ≤ Band Width < (0.497 * fs)
-1≤ Gain < 3
(2) “FIL3”, “EQ0”, “LPF”, “HPF”, “HPFAD”, “EQ1”, “EQ2”, “EQ3”, “EQ4”, “EQ5” Please set ON/OFF of Filter with
a check button. When checked it, Filter becomes ON. When checked “Notch Filter Auto Correction”, perform
automatic revision of center frequency of a notch filter. (“Cf. 8-4. automatic revision of center frequency of a notch
filter”)
Figure 15. Filter ON/OFF setting button
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8-2. A calculation of a register
A register set value is displayed when push a [Register Setting] button. When a value out of a setting range is set, error
message is displayed, and a calculation of register setting is not carried out.
Figure 16. A register setting calculation result
When it is as follows that a register set value is updated.
(1) When [Register Setting] button was pushed.
(2) When [Frequency Response] button was pushed.
(3) When [UpDate] button was pushed on a frequency characteristic indication window.
(4) When set ON/OFF of a check button “Notch Filter Auto Correction”
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8-3.Indication of a frequency characteristic
A frequency characteristic is displayed when push a [Frequency Response] button. In addition, a register set point is
updated then, too.
Change "Frequency Range", and indication of a frequency characteristic is updated when push a [UpDate] button.
Figure 17. A frequency characteristic indication result
When it is as follows that a register set point is updated.
(1) When [Register Setting] button was pushed.
(2) When [Frequency Response] button was pushed.
(3) When [UpDate] button was pushed on a frequency characteristic indication window.
(4) When set ON/OFF of a check button “Notch Filter Auto Correction”
8-4. Automatic revision of center frequency of a notch filter
When set a gain of 5 band Equalizer to -1, Equalizer becomes a notch filter. When center frequency of plural notch filters
is adjacent, produce a gap to central frequency (Figure 18). When check "a Notch Filter Auto Correction" button, perform
automatic revision of central frequency of a notch filter, display register setting after automatic revision and a frequency
characteristic (Figure 19). This automatic revision is availability for Equalizer Band which set a gain to "-1".
(Note) When distance among center frequency is smaller than band width, there is a possibility that automatic revision is
not performed definitely. Please confirm a revision result by indication of a frequency characteristic.
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Setting of center frequency: 4400Hz, 5000Hz, 5400Hz / Band Width : 200Hz(3 band common)
Figure 18. When there is no revision of center frequency
Setting of center frequency: 4400Hz, 5000Hz, 5400Hz / Band Width : 200Hz(3 band common)
Figure 19. When there is revision of center frequency
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MEASUREMENT RESULTS
[Measurement condition]
• Measurement unit
• MCLK
• BICK
• fs
• Bit
• Power Supply
• Measurement Filter
• Temperature
: Audio Precession System Two Cascade
: 11.2896MHz
: 64fs
: 44.1kHz
: 24bit
: AVDD = DVDD = SVDD = 3.3V
: 10Hz ∼ 20kHz
: Room
1.
LIN1/RIN1 Æ ADC
a) MGAIN = +20dB
Parameter
Result (Lch / Rch)
Unit
ADC Analog Input Characteristics: (LIN1/RIN1 pins Æ ADC Æ IVOL, IVOL =
0dB, ALC = OFF), MGAIN = +20dB, PMMP = “1”
S/(N+D)
(-1dBFS Output)
81.8 / 81.7
dB
D-Range (-60dB Output, A-weighted)
89.3 / 89.3
dB
S/N
(A-weighted)
89.5 / 89.6
dB
b) MGAIN = 0dB
Parameter
Result (Lch / Rch)
Unit
ADC Analog Input Characteristics: (LIN1/RIN1 pins Æ ADC Æ IVOL, IVOL =
0dB, ALC = OFF), MGAIN = 0dB, PMMP = “1”
S/(N+D)
(-1dBFS Output)
82.2 / 82.1
dB
D-Range (-60dB Output, A-weighted)
99.6 / 99.4
dB
S/N
(A-weighted)
102.2 / 102.1
dB
2.
LIN2/RIN2 Æ ADC
a) MGAIN = +20dB
Parameter
Result (Lch / Rch)
Unit
ADC Analog Input Characteristics: (LIN2/RIN2 pins Æ ADC Æ IVOL, IVOL =
0dB, ALC = OFF), MGAIN = +20dB, PMMP = “0”
S/(N+D)
(-1dBFS Output)
82.1 / 81.8
dB
D-Range (-60dB Output, A-weighted)
89.2 / 89.2
dB
S/N
(A-weighted)
89.4 / 89.5
dB
b) MGAIN = 0dB
Parameter
Result (Lch / Rch)
Unit
ADC Analog Input Characteristics: (LIN2/RIN2 pins Æ ADC Æ IVOL, IVOL =
0dB, ALC = OFF), MGAIN = 0dB, PMMP = “0”
S/(N+D)
(-1dBFS Output)
82.0 / 82.1
dB
D-Range (-60dB Output, A-weighted)
99.6 / 99.4
dB
S/N
(A-weighted)
102.2 / 102.0
dB
3.
DAC Æ LINEOUT
Parameter
Result (Lch / Rch)
Unit
Stereo Line Output Characteristics: (DAC Æ LOUT/ROUT pins), ALC = OFF,
LOVL1-0 bit = “00”, RL=10kΩ, DVOL = OVOL = DATT = 0dB
S/(N+D)
(-3dBFS Output)
88.8 / 88.7
dB
D-Range (-60dB Output, A-weighted)
96.9 / 96.9
dB
S/N
(A-weighted)
97.3 / 97.3
dB
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4.
DAC Æ SPK
Parameter
Result
Speaker-Amp Characteristics: (DAC Æ SPP/SPN pins), ALC = OFF,
RL=8Ω, DVOL = OVOL = DATT = 0dB, SPKG1-0 bits = “00”
S/(N+D)
(-0.5dBFS Output)
58.8
S/N
(A-weighted)
98.2
Unit
Parameter
Result
Speaker-Amp Characteristics: (DAC Æ SPP/SPN pins), ALC = OFF,
RL=8Ω, DVOL = OVOL = DATT = 0dB, SPKG1-0 bits = “01”
S/(N+D)
(-0.5dBFS Output)
59.2
S/N
(A-weighted)
98.9
Unit
<KM097100>
dB
dB
dB
dB
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[AKD4649-B]
PLOT DATA
1. LINEIN1 (LIN1 / RIN1 Æ ADC )
AK4649 LIN1/RIN1 THD+N vs. Input Level (fin = 1kHz, MGAIN = +20dB, PMMP = “1”)
AKM
-60
-65
-70
-75
d
B
F
S
-80
-85
-90
-95
-100
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
dBr
Figure 20. THD+N vs. Input Level
AK4649 LIN1/RIN1 THD+N vs. Input Frequency (Input Level = -1dBr, MGAIN = +20dB, PMMP = “1”)
AKM
-60
-65
-70
-75
d
B
F
S
-80
-85
-90
-95
-100
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 21. THD+N vs. Input Frequency
<KM097100>
2008 / 11
- 24 -
[AKD4649-B]
AK4649 LIN1/RIN1 Linearity(fin=1kHz, MGAIN = +20dB, PMMP = “1”)
AKM
+0
T T T
-10
-20
-30
-40
d
B
F
S
-50
-60
-70
-80
-90
-100
-110
-120
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
dBr
Figure 22. Linearity
AK4649 LIN1/RIN1 Frequency Response (Input Level = -1dBr, MGAIN = +20dB, PMMP = “1”)
AKM
-0
-0.5
-1
d
B
F
S
-1.5
-2
-2.5
-3
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 23. Frequency Response
<KM097100>
2008 / 11
- 25 -
[AKD4649-B]
AK4649 LIN1/RIN1 FFT (fin=1kHz, Input= -1dBr, MGAIN = +20dB, PMMP = “1”)
FFT point=16384, Average=8
AKM
+0
-20
-40
-60
d
B
F
S
-80
-100
-120
-140
-160
-180
20
50
100
200
500
1k
2k
5k
10k
20k
10k
20k
Hz
Figure 24. FFT Plot (Input = -1dBr, 0dBr = 82.98mVrms)
AK4649 LIN1/RIN1 FFT (fin=1kHz, Input= -60dBr, MGAIN = +20dB, PMMP = “1”)
FFT point=16384, Average=8
AKM
+0
-20
-40
-60
d
B
F
S
-80
-100
-120
-140
-160
-180
20
50
100
200
500
1k
2k
5k
Hz
Figure 25. FFT Plot (Input=-60dBr, 0dBr = 82.98mVrms )
<KM097100>
2008 / 11
- 26 -
[AKD4649-B]
AK4649 LIN1/RIN1 FFT (Input=no signal)
FFT point=16384, Average=8
AKM
+0
-20
-40
-60
d
B
F
S
-80
-100
-120
-140
-160
-180
20
50
100
200
500
1k
2k
5k
10k
20k
5k
10k
20k
Hz
Figure 26. FFT Plot (no signal input)
AK4649 LIN1/RIN1 Crosstalk (Input Level = -1dBr)
RED: Rch Æ Lch, BLUE: Lch Æ Rch
AKM
-60
T T T T T T
T
-70
-80
-90
d
B
-100
-110
-120
-130
-140
20
50
100
200
500
1k
2k
Hz
Figure 27. Crosstalk
<KM097100>
2008 / 11
- 27 -
[AKD4649-B]
2. LINEIN2 ( LIN2 / RIN2 Æ ADC )
AK4649 LIN2/RIN2 THD+N vs. Input Level (fin = 1kHz, MGAIN = 0dB, PMMP = “0”)
AKM
-70
-75
-80
-85
-90
d
B
F
S
-95
-100
-105
-110
-115
-120
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
dBr
Figure 28. THD+N vs. Input Level
AK4649 LIN2/RIN2 THD+N vs. Input Frequency (Input Level = -1dBr, MGAIN = 0dB, PMMP = “0”)
AKM
-50
-55
-60
-65
d
B
F
S
-70
-75
-80
-85
-90
-95
-100
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 29. THD+N vs. Input Frequency
C18 and C19: Tantalum Capacitor
In this case, a tantalum capacitor is used LIN2 and RIN2 pin on the AKD4649-B.As the performance of a tantalum
capacitor is not so good about low frequency signal. Refer to Figure 30 about the performance of AK4649.
<KM097100>
2008 / 11
- 28 -
[AKD4649-B]
AK4649 LIN2/RIN2 THD+N vs. Input Frequency (Input Level = -1dBr, MGAIN = 0dB, PMMP = “0”)
AKM
-50
-55
-60
-65
-70
d
B
F
S
-75
-80
-85
-90
-95
-100
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 30. THD+N vs. Input Frequency
C18 and C19: Electrolytic Capacitor
AK4649 LIN2/RIN2 FFT (fin=1kHz, Input= -1dBr, MGAIN = 0dB, PMMP = “0”)
FFT point=16384, Average=8
AKM
+0
-20
-40
-60
d
B
F
S
-80
-100
-120
-140
-160
-180
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 31. FFT Plot (Input = -1dBr, 0dBr = 823.2mVrms)
<KM097100>
2008 / 11
- 29 -
[AKD4649-B]
AK4649 LIN2/RIN2 FFT (fin=1kHz, Input= -60dBr, MGAIN = 0dB, PMMP = “0”)
FFT point=16384, Average=8
AKM
+0
-20
-40
-60
d
B
F
S
-80
-100
-120
-140
-160
-180
20
50
100
200
500
1k
2k
5k
10k
20k
5k
10k
20k
Hz
Figure 32. FFT Plot (Input=-60dBr, 0dBr = 823.2mVrms )
AK4649 LIN2/RIN2 FFT (Input=no signal)
FFT point=16384, Average=8
AKM
+0
-20
-40
-60
d
B
F
S
-80
-100
-120
-140
-160
-180
20
50
100
200
500
1k
2k
Hz
Figure 33. FFT Plot (no signal input)
<KM097100>
2008 / 11
- 30 -
[AKD4649-B]
AK4649 LIN2/RIN2 Crosstalk (Input Level = -1dBr)
RED: Rch Æ Lch, BLUE: Lch Æ Rch
AKM
-80
T
-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 34. Crosstalk
<KM097100>
2008 / 11
- 31 -
[AKD4649-B]
3. LINEOUT (DAC Æ LOUT / ROUT pins )
AK4649 LINEOUT THD+N vs. Input Level (fin = 1kHz)
AKM
-80
-82
-84
-86
d
B
r
-88
A
-92
-90
-94
-96
-98
-100
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
dBFS
Figure 35. THD+N vs. Input Level
AK4649 LINEOUT THD+N vs. Input Frequency (Input Level= -3dBFS)
AKM
-10
-20
-30
-40
d
B
r
-50
-60
A
-70
-80
-90
-100
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 36. THD+N vs. Input Frequency
C20 and C21: Tantalum Capacitor
In this case, a tantalum capacitor is used LOUT and ROUT pin on the AKD4649-B.As the performance of a tantalum
capacitor is not so good about low frequency signal. Refer to Figure 37 about the performance of AK4649.
<KM097100>
2008 / 11
- 32 -
[AKD4649-B]
AK4649 LINEOUT THD+N vs. Input Frequency (Input Level= -3dBFS)
AKM
+0
-10
-20
-30
-40
d
B
r
-50
A
-70
-60
-80
-90
-100
-110
-120
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 37. THD+N vs. Input Frequency
C20 and C21: Electrolytic Capacitor
AK4649 LINEOUT Linearity (fin=1kHz)
AKM
+0
-10
-20
-30
-40
d
B
r
-50
A
-70
-60
-80
-90
-100
-110
-120
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
dBFS
Figure 38. Linearity
<KM097100>
2008 / 11
- 33 -
[AKD4649-B]
AK4649 LINEOUT Frequency Response (Input Level = -3dBFS)
AKM
-1
-1.5
-2
-2.5
d
B
r
A
-3
-3.5
-4
-4.5
-5
20
50
100
200
500
1k
2k
5k
10k
20k
5k
10k
20k
Hz
Figure 39. Frequency Response
AK4649 LINEOUT FFT (fin = 1kHz, Input = -3dBFS)
FFT point=16384, Average=8
AKM
+0
-20
-40
-60
d
B
r
-80
-100
A
-120
-140
-160
-180
20
50
100
200
500
1k
2k
Hz
Figure 40. FFT Plot (Input = -3dBFS)
<KM097100>
2008 / 11
- 34 -
[AKD4649-B]
AK4693 LINEOUT FFT (fin=1kHz, Input=-60dBFS)
FFT point=16384, Average=8
AKM
+0
-20
-40
-60
d
B
r
-80
-100
A
-120
-140
-160
-180
20
50
100
200
500
1k
2k
5k
10k
20k
2k
5k
10k
20k
Hz
Figure 41. FFT Plot (Input = -60dBFS)
AK4649 LINEOUT FFT (Input=no data)
FFT point=16384, Average=8
AKM
+0
-20
-40
-60
d
B
r
-80
-100
A
-120
-140
-160
-180
20
50
100
200
500
1k
Hz
Figure 42. FFT Plot (no data input)
<KM097100>
2008 / 11
- 35 -
[AKD4649-B]
AK4649 LINEOUT Out-of-band noise (Input=no data)
FFT point=16384, Average=8
AKM
+0
-10
-20
-30
-40
-50
-60
d
B
r
A
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
20
50
100
200
500
1k
2k
5k
10k
20k
50k
100k
Hz
Figure 43. Out-of-band noise (no data input)
AK4649 LINEOUT Crosstalk (Input Level = -3dBFS)
RED: Rch Æ Lch, BLUE: Lch Æ Rch
AKM
+0
T
T
T T
-10
-20
-30
-40
-50
d
B
-60
-70
-80
-90
-100
-110
-120
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 44. Crosstalk
<KM097100>
2008 / 11
- 36 -
[AKD4649-B]
4. SPK (DAC Æ SPK) PLOT DATA
AK4649 SPK THD+N vs. Input Level (fin = 1kHz, SPKG1-0 = “00”)
AKM
-40
-45
-50
-55
-60
d
B
r
-65
A
-75
-70
-80
-85
-90
-95
-100
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
dBFS
Figure 45. THD+N vs. Input Level
AK4649 SPK THD+N vs. Input Frequency (Input Level = -0.5dBFS, SPKG1-0 = “00”)
AKM
-40
-45
-50
-55
-60
d
B
r
-65
A
-75
-70
-80
-85
-90
-95
-100
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 46. THD+N vs. Input Frequency (Input Level = -0.5dBFS, SPKG1-0 = “00” )
<KM097100>
2008 / 11
- 37 -
[AKD4649-B]
AK4649 SPK FFT (fin = 1kHz, Input = -0.5dBFS, SPKG1-0 = “00”)
FFT point=16384, Average=8
AKM
+0
-10
-20
-30
-40
-50
-60
d
B
r
A
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
20
50
100
200
500
1k
2k
5k
10k
20k
5k
10k
20k
Hz
Figure 47. FFT Plot (Input = -0.5dBr, SPKG1-0 = “00”)
AK4649 FFT (fin = 1kHz, Input = -60dBFS, SPKG1-0 = “00”)
FFT point=16384, Average=8
AKM
+0
-10
-20
-30
-40
-50
-60
d
B
r
A
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
20
50
100
200
500
1k
2k
Hz
Figure 48. FFT Plot (Input = -60dBFS, SPKG1-0 = “00” )
<KM097100>
2008 / 11
- 38 -
[AKD4649-B]
AK4649 SPK FFT (Input=no data, SPKG1-0 = “00”)
FFT point=16384, Average=8
AKM
+0
-10
-20
-30
-40
-50
-60
d
B
r
A
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Figure 49. FFT Plot (no data input, SPKG1-0 = “00”)
AK4649 SPK Out-of-band noise Input=no data, SPKG1-0 = “00”
FFT point=16384, Average=8
AKM
+0
-10
-20
-30
-40
-50
-60
d
B
r
A
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
20
50
100
200
500
1k
2k
5k
10k
20k
50k
100k
Hz
Figure 50. Out-of-band noise (no data input, SPKG1-0 = “00”)
<KM097100>
2008 / 11
- 39 -
[AKD4649-B]
REVISION HISTORY
Date
(YY/MM/DD)
Manual
Revision
08/11/12
KM097100
Board
Revision
0
Reason
Page
Contents
First Edition
IMPORTANT NOTICE
z These products and their specifications are subject to change without notice.
When you consider any use or application of these products, please make inquiries the sales office of Asahi Kasei EMD
Corporation (AKEMD) or authorized distributors as to current status of the products.
z AKEMD assumes no liability for infringement of any patent, intellectual property, or other rights in the application or use of any
information contained herein.
z 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.
z AKEMD products are neither intended nor authorized for use as critical componentsNote1) in any safety, life support, or other hazard
related device or systemNote2), and AKEMD assumes no responsibility for such use, except for the use approved with the express
written consent by Representative Director of AKEMD. As used here:
Note1) 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.
Note2) 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.
z It is the responsibility of the buyer or distributor of AKEMD products, who distributes, disposes of, or otherwise places the product
with a third party, to notify such third 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 AKEMD harmless from any and all claims arising from the use of said
product in the absence of such notification.
<KM097100>
2008 / 11
- 40 -
A
B
C
D
E
JP1
GND
DGND
E
AGND
DMP
E
DMP
JP19
DMCLK
DMDAT
AGND
T45_B
T45_B
1
DGND
T45_R
1
JP18
VCC
1
LOUT
ROUT
MIN
RIN2
LIN2
DMCLK
LIN1
RIN1
AVDD
VCC
RIN1
JP17
DMDAT LIN1
D
D
+
B1
AVDD
A2
VCOC
C3
I2C
B3
PDN
E3
D3
E2
D2
E1
MIN
ROUT
LOUT
D4
SPP
SPN
E4
SPN
MCKO
D6
TEST2
MCKI
B5
MCKI
VSS2
A6
DVDD
BICK
LRCK
C5
A5
B
R13
51
+
R12
51
BICK
LRCK
SDTO
I2C-SEL2
SDTI
I2C
3-wire
51
R11
51
JP23
CCLK
I2C-SEL1
SDTO
CDTIO/CAD0
SDTI
R10
51
I2C
CDTI/SDA
SPP
C11
0.1u
R8
51
3-wire
R18
SVDD
C9
10u
C
B6
47k
D5
C4
R40
JP22
51
RIN2
LIN1/DMDAT
LIN2
C1
AK4649
51
PDN
CSN/CAD0
SVDD
E5
10k
R6
JP21
VSS1
C6
R3
R5
10
3-wire
B2
C7
0.1u
A4
C10 4.7n
VCOM
CCLK/SCL
C6
10u
4649_AVDD
R17
E6
C5
0.1u
B4
+
C
B
VSS3
C8
0.1u
A1
CSN/SDA
C4
2.2u
I2C
MPWR/DMP
RIN1/DMCLK
C2
MPWR
+
U1
JP20
DMP
MPWR
D1
GND
C12
10u
A
A
Title
- 41 -
Size
A3
Date:
A
B
C
D
AKD4649-B
Document Number
Rev
AK4649
Tuesday, November 11, 2008
Sheet
E
0
1
of
5
A
E
J2
MIN
B
C14
1u
6
D
E
E
R15
20k
MIN
+
4
3
C
JP16
MIN
J3
LIN2/RIN2
C19
1u
6
+
RIN2
4
3
D
D
C18
1u
+
LIN2
JP5
R1
2.2k
SPP
MPWR
Dynamic
3
4
EXT
SPKP
R2
2.2k
J4
SPK-JACK
6
SPK1
020S16
CN1
J5
LIN1/RIN1
C
JP3
RIN1
6
P
C3
1u
2
C
+
RIN1
4
3
1
C2
1u
+
JP2
LIN1
N
LIN1
JP4
SPN
Dynamic
EXT
SPKN
C21
1u
R23
220
+
B
B
J6
LOUT/ROUT
6
ROUT
R24
20k
C20
1u
4
3
+
R21
220
LOUT
R22
20k
A
A
Title
- 42 -
Size
A3
Date:
A
B
C
D
AKD4649-B
Document Number
Rev
Input/Output
Thursday, August 14, 2008
Sheet
E
0
2
of
5
A
B
C
D
E
VCC
1
4114_REG
L1
47u
GND
OUT
2
1
TORX141
C27
10u
+ C29
10u
C28
0.1u
R25
470
IN
4114_REG
C30
0.1u
C22
47u
+
4114_REG
E
4649_AVDD
OUT
1
3
+
VCC
C23
0.1u
C24
0.1u
L2
10u
2
PORT1
GND
2
E
SVDD
T1
TA48033F
D3V
C31
0.47u
C25
0.1u
R26
18k
for 74HC14
1
38
37
U3A
74HC14
INT1
R
AVDD
39
40
VCOM
AVSS
41
42
RX0
43
NC
44
RX1
45
TEST1
47
46
RX2
D
NC
RX3
U2
48
D3V
IPS0
INT0
36
1
D
14
2
7
R27
1k
LED1
K
A
D3V
ERF
D3V
2
NC
OCKS0
35
3
DIF0
OCKS1
34
4
TEST2
CM1
33
5
DIF1
CM0
32
6
NC
PDN
31
XTI
30
R38
47k
R28
47k
AK4114
C
4114_PDN
C
TEST1
C32
5p
DIF2
8
IPS1
XTO
29
9
P/SN
DAUX
28
10
XTL0
MCKO2
27
11
XTL1
BICK
26
DIR_BICK
12
VIN
SDTO
25
DIR_SDTO
1
7
C33
5p
2
X1
11.2896MHz
SDTO
A
IN
VCC
3
2
GND
1
TOTX141
LRCK
24
MCKO1
DIR_LRCK
DIR_MCLK
C36
10u
C37
10u
D3V
PORT2
23
22
DVSS
DVDD
21
C35
0.1u
+
20
VOUT
UOUT
19
COUT
18
BOUT
17
TX1
16
15
DVSS
14
C34
0.1u
+
13
TX0
B
TVDD
B
R29
5.1
4114_REG
A
C38
0.1u
Title
- 43 -
Size
A3
Date:
A
B
C
D
AKD4649-B
Document Number
Rev
DIR/DIT
Monday, September 08, 2008
Sheet
E
0
3
of
5
A
B
C
D
E
U4
3
A1
B1
21
4
A2
B2
20
LRCK
5
A3
B3
19
SDTI
6
A4
B4
18
7
A5
B5
17
8
A6
B6
16
9
A7
B7
15
10
A8
B8
14
E
MCKI
JP6BICK2
BICK
JP7LRCK2
3-wire
CDTI/SDA
I2C
JP12
CCLK
E
JP8
LRCK
DIR_LRCK
CSN/CAD0
D3V
PDN
D3V
C39
0.1u
D
1
VCCA
VCCB
2
DIR
VCCB
24
23
C54
11
GND
OE
22
0.1u
12
GND
GND
13
D
74AVC8T245
JP9
MCLK
C
D3V
PORT4
10
8
6
4
2
9
7
5
3
1
R30
10k
R33
10k
R35
10k
CSN
SCL/CCLK
SDA/CDTI
R31
R32
R34
JP10
BICK
470
470
470
C
DIR_MCLK
MCLK
BICK
LRCK
SDTI
VCC
DIR_BICK
PORT3
1
3
5
7
9
2
4
6
8
10
DSP
R36
JP13
CAD0
D3V
10k
CTRL
ADC
SDTO
B
B
JP11
SDTI
DIR_SDTO
DIR
D3V
K
D3V
R37
10k
U3B
74HC14
A
D3
HSU119
3
5
U3C
74HC14
14
6
7
4114_PDN
1
H
3
L
14
4
7
SW1
PDN
C40
0.1u
A
2
A
Title
- 44 -
Size
A3
Date:
A
B
C
D
AKD4649-B
Document Number
Rev
LOGIC
Tuesday, August 26, 2008
0
Sheet
E
4
of
5
- 45 -
- 46 -
- 47 -
- 48 -
- 49 -
- 50 -
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