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ASAHI KASEI
[AKD4644-B]
AKD4644-B
AK4644 Evaluation board Rev.0
GENERAL DESCRIPTION AKD4644-B is an evaluation board for the AK4644, Stereo CODEC with built-in MIC/HP/RCV amplifier. The AKD4644-B can evaluate A/D converter and D/A converter separately in addition to loop-back mode (A/D D/A). The AKD4644-B also has the digital audio interface and can achieve the interface with digital audio systems via opt-connector. Ordering guide
AKD4644-B --Evaluation board for AK4644 (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 * Mini-jack for external Stereo Speaker * On-board Stereo Class-D Speaker Amplifier (AK7830)
5V Regulator 3.3V LIN1/ RIN1 LIN2/ RIN2 MIN/ LIN3/ RIN3 HP LOUT/ ROUT SPL SPR AK7830 Control Data 10pin Header GND
DSP 10pin Header
AK4644
AK4114 Opt In Opt Out
Figure 1. AKD4644-B Block Diagram * Circuit diagram and PCB layout are attached at the end of this manual
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ASAHI KASEI
[AKD4644-B]
Evaluation Board Manual Operation sequence
1) Set up the power supply lines. [VCC] (red) = 5.0V (or 3.3V) [AGND] (black) = 0V [DGND] (black) = 0V Each supply line should be distributed from the power supply unit. When the power is supplied to the AK4644 via the regulator, JP21 should be set to "REG" side and VCC should be 5.0V. (When the power is supplied from VCC jack to the AK4644 directly, JP21 should be set to "VCC" side and VCC should be 3.3V.) 2) Set up the evaluation mode, jumper pins. (See the followings.) 3) Power on. The AK4644 and AK4114 should be reset once bringing SW1 "L" upon power-up. And the AK7830 should be reset once bringing SW2(SPK_PDN) "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 (HP, LOUT) using DIR of AK4114 (1-3) Evaluation of Loop-back using AK4114 (1-4) All interface signals including master clock are fed externally. The AK4114's audio interface format is fixed to I2S compatible.
(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 MCLK JP10 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 MCLK JP10 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 X'tal oscillator (X1) is used. Nothing should be connected to PORT1 (DIR) and PORT3 (DSP).
JP6 BICK2 JP7 LRCK2 JP8 LRCK JP9 MCLK JP10 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 MCLK JP10 BICK JP11 SDTI
DIR
ADC
(2) Master mode (2-1) Evaluation of Recording block 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 (LOOP bit = "1"). It is possible to evaluate at various sampling frequencies using built-in AK4644's PLL.
JP6 BICK2 JP7 LRCK2 JP8 LRCK JP9 MCLK JP10 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 (LOOP bit = "1"). It is possible to evaluate at various sampling frequencies using built-in AK4644's PLL.
JP6 BICK2 JP7 LRCK2 JP8 LRCK JP9 MCLK JP10 BICK JP11 SDTI
DIR
ADC
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[AKD4644-B]
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. 2. JP2,JP3 : Connection of mic power. OPEN: Mic power is not connected. SHORT : Mic power is connected. 3. JP12 : HVDD Select. 3.3V : HVDD is supplied from the regurator (3.3V). 5V : HVDD is supplied from "VCC" jack (5V). 4. JP16,JP17: Select Pin #5,28
Pin #5 VCOC RIN3 Pin #28 MIN LIN3 JP16 VCOC RIN3 JP17 Open Short AIN3 bit 0 1
5. JP18,JP19,JP20 : Select the input from MIN/LIN3/RIN3.
Pin #26 ROUT RCN Pin #27 LOUT RCP JP18 Open Short JP19 Open Short JP20 Short Open RCV bit 0 1
6. JP22 : Select the Power Booster of AK7830. VCC : Power Booster ON GND: Power Booster Off
The function of the toggle SW
[SW1] (PDN): Power down of AK4644 and AK4114. Keep "H" during normal operation. [SW2] (SPK_PDN): Power down of AK7830. 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 AK4644 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 AKD4644. When I2C bus mode is used, PORT4 should be directly connected to the I2C bus on the system. JP13,14 and 15 should be set to I2C bus mode to control the AK7830.
Connect PC
CSN SCL/CCLK SDA/CDTI AKD4644-B
10 wire flat cable
10pin Connector
10pin Header
Figure 2. Connect of 10 wire flat cable
(1) 3-wire Serial Control Mode
The jumper pins should be set to the following.
JP14 CAD0
JP13 I2C_SEL
JP15 SDA
I2C
3-wire
(2) I2C-bus Control Mode
The jumper pins should be set to the following. (2-1) In case of using CAD0=0 (device address bits).
JP14 CAD0 JP13 I2C_SEL JP15 SDA
I2C
3-wire
(2-2) In case of using CAD0=1 (device address bits).
JP14 CAD0
JP13 I2C_SEL
JP15 SDA
I2C
3-wire
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Analog Input/Output Circuits
(1) Input Circuits 1. MIN/LIN3/RIN3 Input Circuit
JP17 LIN3 J2 BEEP 4 6 3 C14 1u + C26 1u + R15 20k MIN/LIN3 RIN3
Figure 3. MIN/LIN3/RIN3 Input Circuit 2. LINE1 Input Circuit
R1 2.2k MPWR R2 2.2k
J5 LIN1/RIN1
4 6 3
JP3 RIN1
C3 1u RIN1 + C2 1u LIN1 +
JP2 LIN1
Figure 4. LIN1/RIN1 Input Circuit
3. LINE2 Input Circuit
C18 1u LIN2 + J3 LIN2/RIN2
4 6 3 C19 1u RIN2 +
Figure 5. LIN2/RIN2 Input Circuit
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(2) Output Circuits 1. Headphone-amp Output Circuit
C13 47u HPL + + HPR C15 47u R16 0(SHORT) R14 0(SHORT) 4 6 3 J1 HP
C16 0.22u
C17 0.22u
R17 10
R18 10
Figure 6. Headphone-amp Output Circuit
2.
STEREO LINE Output Circuit
JP19 RCP C20 1u + R22 20k
LOUT
R21 220 4 6 3 JP20 LINEOUT
J6 LOUT/ROUT/RCV
ROUT
C21 1u + R24 20k
R23 220
JP18 RCN
Figure 7. STEREO LINE Output Circuit
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[AKD4644-B]
3.
External SPEAKER-Amp(AK7830) Output Circuit
VC_L_P VC_L_P VC_L_N VC_L_N 6 4 3 J8 SPP_L
VC_R_P VC_R_P VC_R_N VC_R_N 6 4 3 J7 SPP_R
Figure 8. External SPEAKER-Amp(AK7830) Output Circuit
AKM assumes no responsibility for the trouble when using the above circuit examples.
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ASAHI KASEI
[AKD4644-B]
Control Software Manual Set-up of evaluation board and control software
1. Set up the AKD4644-B according to previous term. 2. Connect IBM-AT compatible PC with AKD4644-B by 10-line type flat cable (packed with AKD4644-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 "AKD4644-B Evaluation Kit" into the CD-ROM drive. 4. Access the CD-ROM drive and double-click the icon of "akd4644.exe" to set up the control program. When control the AK7830 with the serial mode, double-click the icon of "akd7830.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. [SAVE] : 10. [OPEN] : 11. [Write] : Set up the USB interface board (AKDUSBIF-A) when using the board. Initialize the register of the AK4644. Write all registers that is currently displayed. Dialog to write data by keyboard operation. Dialog to write data by keyboard operation. The sequence of register setting can be set and executed. The sequence that is created on [Function3] can be assigned to buttons and executed. The register setting that is created by [SAVE] function on main window can be assigned to buttons and executed. Save the current register setting. Write the saved values to all register. Dialog to write data by mouse operation.
Indication of data
Input data is indicated on the register map. Red letter indicates "H" or "1" and blue one indicates "L" or "0". Blank is the part that is not defined in the datasheet.
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ASAHI KASEI
[AKD4644-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 AK4644, 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 AK4644, click [OK] button. If not, click [Cancel] button.
3. [Function2 Dialog] : Dialog to evaluate DATT
There are dialogs corresponding to register of 09h, 0Ah, 0Ch, and 0Dh. 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 AK4644 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 AK4644, click [OK] button. If not, click [Cancel] button.
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[AKD4644-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". (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 AK4644. The file type is the same as [SAVE]. (1) Click [OPEN] Button. (2) Select the file (*.akr) and Click [OPEN] Button.
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[AKD4644-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 8. Window of [F3]
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ASAHI KASEI
[AKD4644-B]
6. [Function4 Dialog]
The sequence file (*.aks) saved by [Function3] can be listed up to 10 files, assigned to buttons and then executed. When [F4] button is clicked, the window as shown in Figure 10 opens.
Figure 9. [F4] window
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[AKD4644-B]
6-1. [OPEN] buttons on left side and [START] buttons (1) Click [OPEN] button and select the sequence file (*.aks) saved by [Function3]. The sequence file name is displayed as shown in Figure 11. ( In case that the selected sequence file name is "DAC_Stereo_ON.aks")
Figure 10. [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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ASAHI KASEI
[AKD4644-B]
7. [Function5 Dialog]
The register setting file(*.akr) saved by [SAVE] function on main window can be listed up to 10 files, assigned to buttons and then executed. When [F5] button is clicked, the window as shown in Figure 12 opens.
Figure 11. [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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[AKD4644-B]
Figure 12. [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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MEASUREMENT RESULTS
1. EXT mode (slave mode)
[Measurement condition] Measurement unit: Audio Precision, System two Cascade EXT Slave Mode BICK: 64fs Bit: 16bit Measurement Frequency: 20Hz 20kH Power Supply: AVDD=DVDD=HVDD=3.3V Temperature: Room Input Frequency: 1kHz Sampling Frequency: 44.1kHz [Measurement Results]
ADC (LIN2/RIN2) characteristics (IVOL=0dB, ALC1 = OFF, LIN2/RIN2 L[dB] MIC-Amp Gain S/(N+D) 20kHzLPF (-1dB) DR 20kHzLPF + A-weighted S/N 20kHzLPF + A-weighted 0dB 90.8 95.6 95.7 +20dB 90.2 95.6 95.7 0dB 84.3 87.4 87.4 R[dB] +20dB 84.2 87.4 87.4 ADC IVOL)
DAC (LOUT/ROUT) characteristics (RL=10k, DAC LOUT/ROUT) L[dB] R[dB] S/(N+D) 20kHzLPF (-3dB) 89.7 89.7 S/N 20kHzLPF + A-weighted 94.6 94.6
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2. PLOT DATA 2-1 ADC (LIN2/RIN2
AKM
-60 -62.5 -65 -67.5 -70 -72.5 -75 d B F S -77.5 -80 -82.5 -85 -87.5 -90 -92.5 -95 -97.5 -100 -120 -110
ADC) (+20dB)
AK4644 THD+N vs Input Level fs=44.1kHz , fin=1kHz
-100
-90
-80
-70
-60 dBr
-50
-40
-30
-20
-10
Figure 13. THD+N vs. Input Level
AKM
-60 -62.5 -65 -67.5 -70 -72.5 -75 d B F S -77.5 -80 -82.5 -85 -87.5 -90 -92.5 -95 -97.5 -100 20 50 100
AK4644 THD+N vs Input Frequency fs=44.1kHz , -1dB Input
200
500 Hz
1k
2k
5k
10k
20k
Figure 14. THD+N vs. Input Frequency
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[AKD4644-B]
AKM
+0 -10 -20 -30 -40 d B F S -50 -60 -70 -80 -90 -100 -110 -110
AK4644 Linearity fs=44.1kHz , fin=1kHz
-100
-90
-80
-70
-60 dBr
-50
-40
-30
-20
-10
+0
Figure 15. Linearity
AKM
+0 -0.2 -0.4 -0.6 -0.8 -1 -1.2 d B F S -1.4 -1.6 -1.8 -2 -2.2 -2.4 -2.6 -2.8 -3 20
AK4644 Frequency Response fs=44.1kHz , -1dB Input
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 16. Frequency Response
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ASAHI KASEI
[AKD4644-B]
AKM
+0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20 50 100
AK4644 AIN2 -> ADC FFT fs=44.1kHz , fin=1kHz , -1dB Input
200
500 Hz
1k
2k
5k
10k
20k
Figure 17. FFT Plot (Input level= -1dBFs)
AKM
+0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20 50 100
AK4644 AIN2 -> ADC FFT fs=44.1kHz , fin=1kHz , -60dB Input
200
500 Hz
1k
2k
5k
10k
20k
Figure 18. FFT Plot (Input level= -60dBFs)
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ASAHI KASEI
[AKD4644-B]
AKM
+0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20 50 100
AK4644 AIN2 -> ADC FFT fs=44.1kHz , fin=1kHz , No Signal
200
500 Hz
1k
2k
5k
10k
20k
Figure 19. FFT Plot (No signal)
AKM
-70 -75 -80 -85 -90 -95 -100 d B -105 -110 -115 -120 -125 -130 -135 -140 20
AK4644 Crosstalk fs=44.1kHz , -1dB Input RED : Rch ->Lch , BLUE : Lch -> Rch
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 20. Crosstalk Plot
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[AKD4644-B]
2-2 ADC (LIN2/RIN2
ADC) (0dB)
AKM
AK4644 THD+N vs Input Level fs=44.1kHz , fin=1kHz
-60 -62.5 -65 -67.5 -70 -72.5 -75
d B F S
-77.5 -80 -82.5 -85 -87.5 -90 -92.5 -95 -97.5 -100 -120 -110 -100 -90 -80 -70 -60 dBr last.at2c -50 -40 -30 -20 -10
Figure 21. THD+N vs. Input Frequency
AKM
-60 -62.5 -65 -67.5 -70 -72.5 -75 d B F S -77.5 -80 -82.5 -85 -87.5 -90 -92.5 -95 -97.5 -100 20 50 100
AK4644 THD+N vs Input Frequency fs=44.1kHz , -1dB Input
200
500 Hz
1k
2k
5k
10k
20k
Figure 22. THD+N vs. Input Frequency
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[AKD4644-B]
AKM
+0 -10 -20
AK4644 Linearity fs=44.1kHz , fin=1kHz
-30 -40 d B F S -50 -60 -70 -80 -90 -100
-110 -110
-100
-90
-80
-70
-60 dBr
-50
-40
-30
-20
-10
+0
Figure 23. Linearity
AKM
+0 -0.2 -0.4 -0.6 -0.8 -1 -1.2 d B F S -1.4 -1.6 -1.8 -2 -2.2 -2.4 -2.6 -2.8 -3 20
AK4644 Frequency Response fs=44.1kHz , -1dB Input
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 24. Frequency Response
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ASAHI KASEI
[AKD4644-B]
AKM
+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
AK4644 AIN2 -> ADC FFT fs=44.1kHz , fin=1kHz , -1dB
500 Hz
1k
2k
5k
10k
20k
Figure 25. FFT Plot (Input level= -1dBFs)
AKM
+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
AK4644 AIN2 -> ADC FFT fs=44.1kHz , fin=1kHz , -1dB
500 Hz
1k
2k
5k
10k
20k
Figure 26. FFT Plot (Input level = -60dBFs)
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ASAHI KASEI
[AKD4644-B]
AKM
+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
AK4644 AIN2 -> ADC FFT fs=44.1kHz , fin=1kHz , -1dB
500 Hz
1k
2k
5k
10k
20k
Figure 27. FFT Plot ( No signal )
AKM
-70 -75 -80 -85 -90 -95 -100 d B -105 -110 -115 -120 -125 -130 -135 -140 20
AK4644 Crosstalk fs=44.1kHz , -1dB Input RED : Rch ->Lch , BLUE : Lch -> Rch
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 28. Crosstalk Plot
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[AKD4644-B]
2-3 DAC (DAC
LOUT/ROUT)
AKM
-60 -62.5 -65 -67.5 -70 -72.5 -75 d B r A -77.5 -80 -82.5 -85 -87.5 -90 -92.5 -95 -97.5 -100 -120 -110 -100 -90
AK4644 DAC -> LINEOUT THD+N vs Input Level fs=44.1kHz , fin=1kHz
-80
-70
-60 dBFS
-50
-40
-30
-20
-10
+0
Figure 29. THD+N vs. Input Level
AKM
-60 -62.5 -65 -67.5 -70 -72.5 -75 d B r A -77.5 -80 -82.5 -85 -87.5 -90 -92.5 -95 -97.5 -100 20 50
AK4644 DAC -> LINEOUT THD+N vs Input Frequency fs=44.1kHz , fin=1kHz
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 30.THD+N vs. Input Frequency
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[AKD4644-B]
AKM
+0 -10 -20
AK4644 DAC -> LINEOUT Linearity fs=44.1kHz , fin=1kHz
-30 -40 d B r A -50 -60 -70 -80 -90 -100
-110 -110
-100
-90
-80
-70
-60 dBFS
-50
-40
-30
-20
-10
+0
Figure 31. Linearity
AKM
+1 +0.9 +0.8 +0.7 +0.6 +0.5 +0.4 +0.3 +0.2 d B r A +0.1 +0 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 -0.8 -0.9 -1 2k 4k
AK4644 DAC -> LINEOUT Frequency Response fs=44.1kHz , fin=1kHz
6k
8k
10k Hz
12k
14k
16k
18k
20k
Figure 32. Frequency Response
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[AKD4644-B]
AKM
+10 +0 -10 -20 -30 -40 -50 d B r A -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20 50 100 200
AK4644 DAC --> Lineout FFT fs=44.1kHz , fin=1kHz , 0dB Input
500 Hz
1k
2k
5k
10k
20k
Figure 33. FFT Plot (Input level= 0dBFs)
AKM
+0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20
AK4644 DAC --> Lineout FFT fs=44.1kHz , fin=1kHz , -60dB Input
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 34. FFT Plot (Input level = -60dBFs)
- 28 -
2006 / 02
ASAHI KASEI
[AKD4644-B]
AKM
+0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20
AK4644 DAC --> Lineout FFT fs=44.1kHz , fin=1kHz , No Signal
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 35. FFT Plot (No signal)
AKM
AK4644 DAC -> LINEOUT Crosstalk fs=44.1kHz , fin=1kHz , 0dB Input
-60 -65 -70 -75 -80 -85 -90 -95
d B
-100 -105 -110 -115 -120 -125 -130 -135 -140 20
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 36. Crosstalk Plot
- 29 -
2006 / 02
ASAHI KASEI
[AKD4644-B]
Revision History Date (YY/MM/DD) 06/03/08 Manual Revision KM082800 Board Revision 0 Reason First Edition Contents
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.
- 30 -
2006 / 03
A
B
C
D
E
DGND MIN/LIN3
JP1 GND
AGND
ROUT
LOUT
E
E
RIN3
RIN1
RIN2
LIN1
LIN2
D
32
31
30
29
27
26
U6
RIN2 / IN2-
LIN1 / IN1-
28
LOUT / RCP
LIN2 / IN2+
MIN / LIN3
ROUT / RCN
MPWR
1
RIN1/IN1+
MUTET
25
MPWR
2
VCOM
C4 2.2u
+
C5 0.1u
3 AVSS HVSS 22
REG
C
4
AVDD
JP13 I2C-SEL
C10 4.7n
R3 10k
JP16 RIN3 RIN3
5
AK4644
HVDD
21
VCOC R4 47k
6
VCOC/RIN3
TEST2
20
I2C
TEST1
19
TP2 R5 10 R6 PDN R7 CSN 51
CCLK/SCL CSN/CAD0 CDTI / SDA 8 MCKI DVDD SDTO DVSS LRCK BICK SDTI 17
51
7 PDN MCKO 18
9
10
11
12
13
14
15
C11 0.1u
B
16
R8 51
R9 51
R10 51
R11 51
R12 51
R13 51 +
CCLK
CDTI
SDTI
SDTO
A
LRCK
BICK
C12 10u
A
B
C
+
C6 10u
C7 0.1u
+ +
C1 1u
D
HPL
24
HPL
HPR
23
HPR
C8 0.1u
C9 10u
JP12 HVDD
5V 3.3V
VCC REG
C
MCKI
B
A
Title Size Document Number
AKD4644-B
AK4644
1
of Rev
A3
Date:
D
0 6
Wednesday, February 08, 2006 Sheet
E
A
B
C
D
E
E
J2 MIN/LIN3/RIN3
6 4 3
+
C26 1u RIN3 R15 20k MIN/LIN3 JP17 LIN3 HPL HPR C14 1u + +
C15 47u
R16 0(SHORT)
6 4 3
J1 HP
E
+ C13 47u
R14 0(SHORT)
C16 0.22u
C17 0.22u
J3 LIN2/RIN2
6 4 3
D
C19 1u RIN2 + C18 1u LIN2 + R1 2.2k MPWR R2 2.2k
R17 10
R18 10
D
J5 LIN1/RIN1
C
6 4 3
JP3 RIN1
C3 1u RIN1
C
C2 1u LIN1 + + JP2 LIN1
+ +
JP18 TP5 VC-L-P VC-L-P
1 6
B
J8
4 3
C21 1u + ROUT
RCN R23 220
6
TP6 VC-L-N VC-L-N
1
J6 LOUT/ROUT/RCV
4 3
B
SPP-L
R24 20k
TP3 VC-R-P VC-R-P
1 6
J7
4 3
JP20 LINEOUT C20 1u LOUT + R21 220 R22 20k
TP4 VC-R-N VC-R-N
1
SPP-R
A
A
JP19 RCP
Title Size Document Number
AKD4644-B
Input/Output
2
of Rev
A3
Date:
A B C D
0 6
Wednesday, February 08, 2006 Sheet
E
A
B
C
D
E
VCC D3V VCC L1 47u
E
1
PORT1
VCC GND OUT 3 2 1
2
T1 TA48033F
GND
VCC REG
JP21 REG-SEL
E
TORX141
C28 0.1u
+ C29 10u
R25 470
D3V
2
C30 0.1u
C22 47u
+
C23 0.1u
C24 0.1u
1
C27 10u +
IN
OUT
REG L2 10u
D3V C25 0.1u for 74HC14 D3V
48 46 44 47 43 42 41 39 45
C31 0.47u
R26 18k
U2
D
40
38
37
TEST1
AVSS
VCOM
AVDD
INT1
RX3
RX2
RX1
RX0
U3A 74HC14
INT0 36 1 14 2 7
NC
NC
R
D
R27 1k
K
LED1
A
1
IPS0
D3V
ERF
2 NC OCKS0 35
R38 47k
3 DIF0 OCKS1 34
4
TEST2
CM1
33
R28 47k
5 DIF1 CM0 32
4114_PDN
C
C
6
NC
D3V
1
7
DIF2
AK4114
PDN
31
TP1
XTI 30
C32 5p C33 5p
X1 11.2896MHz
IPS1 XTO 2 8 29
9
P/SN
DAUX
28
SDTO
10
XTL0
MCKO2
27
11
B
XTL1
BICK
26
DIR_BICK
B
12
VIN MCKO1 COUT UOUT DVDD BOUT VOUT DVSS DVSS TVDD LRCK TX0 TX1
SDTO
25
DIR_SDTO
13
14
15
16
17
18
19
20
21
22
23
C34 0.1u +
C35 0.1u +
24
DIR_LRCK
D3V PORT2
IN VCC
A
DIR_MCLK
C36 10u
3 2 1
R29 5.1 D3V
C37 10u
GND
A
TOTX141
C38 0.1u
Title Size Document Number
AKD4644-B
DIR/DIT
3
of Rev
A3
Date:
A B C D
0 6
Wednesday, February 08, 2006 Sheet
E
A
B
C
D
E
U4
MCKI
E
11
Y8
A8
9
E
JP6 BICK2 BICK JP7 LRCK2 LRCK
13 Y6 A6 7 12 Y7 A7 8
JP8 LRCK DIR_LRCK
SDTI JP15 SDA CDTI I2C CCLK 3-wire
14
Y5
A5
6
15
Y4
A4
5
16
Y3
A3
4
D
CSN
17
Y2
A2
3
D
PDN
18
Y1
A1
2
10
GND
G2
19
C39 0.1u
20 VCC G1 1
D3V
74LVC541
C
JP9 MCLK JP10 BICK DIR_BICK DIR_MCLK MCLK BICK LRCK SDTI VCC
1 2 3 4 5
C
PORT3
10 9 8 7 6
REG
R30 R33 R35 PORT4
1 2 3 4 5 10 9 8 7 6
10k 10k 10k
R31 R32 R34
470 470 470
DSP R36 D3V 10k JP14 CAD0 ADC SDTO
CSN SCL/CCLK SDA/CDTI
CTRL
B
B
JP11 SDTI DIR D3V
K
DIR_SDTO
D3V D3 HSU119
3
R37 10k
A
U3B 74HC14
14 4 7 5
U3C 74HC14
14 6 7
4114_PDN
L
3 1
A
H SW1 PDN
2
C40 0.1u
Title Size Document Number
A
AKD4644-B
LOGIC
4
of Rev
A3
Date:
A B C D
0 6
E
Wednesday, February 08, 2006 Sheet
A
B
C
D
E
E
E
D
D
D3V U3F 74HC14
13 14 12 7
C
C
B
B
A
A
Title Size Document Number
AKD4644-B
PIN
5
of Rev
A3
Date:
A B C D
0 6
E
Wednesday, February 08, 2006 Sheet
A
B
C
D
E
VC-R-P
U5
VSS2 VSS1 VDD2 VC-R-P VDD1 VSS3
C45 2.2u
1
L3 1u D5 C46 10u
2
+
A
C44 10u
A
VC-R-N
VC-R-N
VCOIL
1
2
DIODE VC-L-P
VC-L-P TEST
JP22 VCC BST-PD
B
+
+ + VCC
B
VC-L-N
VC-L-N
AK7830
BST-PDN
GND
VFB
VSS4
C47 0.1u D3V
VCC
VBAT
DVDDI
IN-L-N
IN-L-P
IN-R-N
IN-R-P
PDN SDA SCL VC
SPK-PDN
C42 0.1u LOUT C43 0.1u
C
AK7830 C41 0.01u CDTI CCLK
C
ROUT
VCC
K
D3V D4 HSU119
9
R39 10k
A
U3D 74HC14
14 8 7 11
U3E 74HC14
14 10 7
SPK-PDN
L
3 1
D
H
D
SW2 C48 SPK-PDN 0.1u
2
E
E
Title Size Document Number
AKD4644-B
AK7830
6
of Rev
A3
Date:
A B C D
0 6
Wednesday, February 08, 2006 Sheet
E

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