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 ASAHI KASEI
[AKD4645-B]
AKD4645-B
AK4645 Evaluation board Rev.0
GENERAL DESCRIPTION AKD4645-B is an evaluation board for the AK4645, Stereo CODEC with built-in MIC/HP amplifier. The AKD4645-B can evaluate A/D converter and D/A converter separately in addition to loop-back mode (A/D D/A). The AKD4645-B also has the digital audio interface and can achieve the interface with digital audio systems via opt-connector. Ordering guide
AKD4645-B --Evaluation board for AK4645 (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 * On-board Stereo Class-D Speaker Amplifier (AK7830)
5V Regulator 3.3V LIN1/ RIN1 LIN2/ RIN2 MIN/ LIN3/ RIN3 LIN4/ RIN4 HP LOUT/ ROUT SPL / SPR AK7830 (Class-D) AK4114 (DIR/DIT) Control Data 10pin Header GND
DSP 10pin Header
AK4645
Opt In Opt Out
Figure 1. AKD4645-B Block Diagram * Circuit diagram and PCB layout are attached at the end of this manual
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ASAHI KASEI
[AKD4645-B]
Evaluation Board Manual Operation sequence
1) Install the control software (Refer to page 9). 2) Set up the power supply lines. [VCC] (red) = 5.0V (or 3.3V)
[TVDD] (orange) = 1.6 3.6V : for TVDD of AK4645 (typ. 3.3V:DVDD)
[AGND] (black) [DGND] (black)
= 0V = 0V
Each supply line should be distributed from the power supply unit. When the power is supplied to the AK4645 via the regulator, JP2 should be set to "REG" side and VCC should be 5.0V. (When the power is supplied from VCC jack to the AK4645 directly, JP2 should be set to "VCC" side and VCC should be 3.3V.) 3) Set up the evaluation mode, jumper pins. (See the followings.) 4) Power on. The AK4645 and AK4114 should be reset once bringing SW2 "L" upon power-up. And the AK7830 should be reset once bringing SW1 (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, LINEOUT) 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 LJ 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).
JP11 DIR-MCLK JP13 DIR-BICK JP14 DIR-LRCK JP16 DIR-SEL JP19 SDTI
Master
Slave DIR
ADC
(1-2) Evaluation of Playback block using DIR of AK4114 PORT1 (DIR) is used. Nothing should be connected to PORT3 (DSP).
JP11 DIR-MCLK JP13 DIR-BICK JP14 DIR-LRCK JP16 DIR-SEL JP19 SDTI
Master
Slave 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. -22006/07
ASAHI KASEI
[AKD4645-B]
(1-3) Evaluation of Loop-back using AK4114 X'tal oscillator (X1) is used. Nothing should be connected to PORT1 (DIR) and PORT3 (DSP).
JP11 DIR-MCLK JP13 DIR-BICK JP14 DIR-LRCK JP16 DIR-SEL JP19 SDTI
Master
Slave 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).
JP11 DIR-MCLK JP13 DIR-BICK JP14 DIR-LRCK JP16 DIR-SEL JP19 SDTI
Master
Slave 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 AK4645's PLL.
JP11 DIR-MCLK JP13 DIR-BICK JP14 DIR-LRCK JP16 DIR-SEL JP19 SDTI
Master
Slave 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 AK4645's PLL.
JP11 DIR-MCLK JP13 DIR-BICK JP14 DIR-LRCK JP16 DIR-SEL JP19 SDTI
Master
Slave DIR
ADC
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ASAHI KASEI
[AKD4645-B]
Other jumper pins set up
[JP1] (GND) : Connection between AGND and DGND. OPEN : Both grounds are separated on board. SHORT : Both grounds are connected on board. [JP9, JP10] : Connection of mic power. OPEN: Mic power is not connected. SHORT : Mic power is connected. [JP4, JP8]: Select Pin #5, 28
Pin #5 VCOC RIN3 Pin #28 MIN LIN3 JP4 VCOC RIN3 JP8 Open Short AIN3 bit 0 1
[JP7] : Select the Power Booster of AK7830. VCC : Power Booster ON GND: Power Booster Off [JP15] : Select Output Signal Voltage of 74AVC8T245 TVDD: TVDD = D3V D3V : TVDD < D3V [JP18] (SDTO-IN): Presence of external device connection via PORT3(DSP) SHORT : connection OPEN : non-connection
The function of the toggle SW
[SW1] (SPK_PDN): Power down of AK7830. Keep "H" during normal operation. [SW2] (PDN): Power down of AK4645 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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ASAHI KASEI
[AKD4645-B]
Serial Control
The AK4645 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 AKD4645. When I2C bus mode is used, PORT4 should be directly connected to the I2C bus on the system. JP3, 17 and 12 should be set to I2C bus mode to control the AK7830.
Connect PC
CSN SCL/CCLK SDA/CDTI AKD4645-B
10 wire flat cable
10pin Connector
10pin Header
Figure 2. Connect of 10 wire flat cable
(1) 3-wire Serial Control Mode
JP17 CAD0 JP3 I2C-SEL JP12 SDA
I2C
3-wire
The jumper pins should be set to the following.
(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).
JP17 CAD0 JP3 I2C-SEL JP12 SDA
I2C
3-wire
(2-2) In case of using CAD0=1 (device address bits).
JP17 CAD0 JP3 I2C-SEL JP12 SDA
I2C
3-wire
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ASAHI KASEI
[AKD4645-B]
Analog Input/Output Circuits
(1) Input Circuits 1. MIN/LIN3/RIN3 Input Circuit
C31 1u RIN3 R17 20k MIN/LIN3 JP8 LIN3 + C32 1u +
J3 MIN/LIN3/RIN3
6 4 3
Figure 3. MIN/LIN3/RIN3 Input Circuit 2. LINE1 Input Circuit
R22 2.2k MPWR R23 2.2k
J7 LIN1/RIN1
6 4 3
JP9 RIN1
C37 1u RIN1 + C38 1u LIN1 +
JP10 LIN1
Figure 4. LIN1/RIN1 Input Circuit
3. LINE2 Input Circuit
J5 LIN2/RIN2
6 4 3
C34 1u RIN2 + C36 1u LIN2 +
Figure 5. LIN2/RIN2 Input Circuit 4. LINE4 Input Circuit
J2 LIN4/RIN4
6 4 3
C29 1u RIN4 + C30 1u LIN4 +
Figure 6. LIN4/RIN4 Input Circuit
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ASAHI KASEI
[AKD4645-B]
(2) Output Circuits 1. Headphone-amp Output Circuit
C25 47u + HPR + R13 short
6 4 3
J1 HP
HPL C26 47u R14 short
C27 0.22u
C28 0.22u
R15 10
R16 10
Figure 6. Headphone-amp Output Circuit
2.
LINE Output Circuit
C33 1u + R18 220 R19 20k J4 LOUT/ROUT
ROUT
6 4 3
C35 1u LOUT R21 20k +
R20 220
Figure 7. LINE Output Circuit
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ASAHI KASEI
[AKD4645-B]
4.
External SPEAKER-Amp(AK7830) Output Circuit
TP2 VC-L-P VC-L-P
1
6 4 3
J6
TP3 VC-L-N VC-L-N
1
SPP-L
TP4 VC-R-P VC-R-P
1
6 4 3
J8
TP5 VC-R-N VC-R-N
1
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
[AKD4645-B]
Control Software Manual Set-up of evaluation board and control software
1. Connect IBM-AT compatible PC with AKD4645-B by 10-line type flat cable (packed with AKD4645-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.) 2. Insert the CD-ROM labeled "AKD4645-B Evaluation Kit" into the CD-ROM drive. 3. Access the CD-ROM drive and double-click the icon of "akd4645.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. 4. Then please evaluate according to the follows.
Operation flow
Keep the following flow. 1. Set up the control program according to explanation above. 2. Click "Port Reset" button. 3. Click "Write default" button
Explanation of each buttons
[Port Reset] : [Write default] : [All Write] : [Function1] : [Function2] : [Function3] : [Function4] : [Function5]: [SAVE] : [OPEN] : [Write] : [Filter] : Set up the USB interface board (AKDUSBIF-A) . Initialize the register of AK4645. 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. Set Programmable Filter (FIL1, FIL3, EQ) of AK4645 easily.
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
[AKD4645-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 AK4645, 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 AK4645, 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 AK4645 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 AK4645, click [OK] button. If not, click [Cancel] button.
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ASAHI KASEI
[AKD4645-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 AK4645. 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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ASAHI KASEI
[AKD4645-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 9. Window of [F3]
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ASAHI KASEI
[AKD4645-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 10. [F4] window
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ASAHI KASEI
[AKD4645-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 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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ASAHI KASEI
[AKD4645-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 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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ASAHI KASEI
[AKD4645-B]
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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ASAHI KASEI
[AKD4645-B]
8. [Filter Dialog] This dialog can easily set the AK4645's programmable filter.
Figure 6. [Filter] window
8-1. Value input columns on left side [Sampling Rate] [Cut Off Frequency of FIL1] [Cut Off Frequency of FIL3] [Pole Frequency of EQ] [Zero Frequency of EQ] [FIL3 GAIN] [EQ GAIN] 8-2. Check box on left side Check Box FIL1 FIL3 EQ LPF of FIL1 LPF of FIL3 Check FIL1 bit ="1" FIL3 bit ="1" EQ bit ="1" F1AS bit ="1"(LPF) F3AS bit ="1"(LPF) Check off FIL1 bit ="0" FIL3 bit ="0" EQ bit ="0" F1AS bit ="0"(HPF) F3AS bit ="0"(HPF) Input value of sampling frequency [unit : Hz] Input value of cut off frequency of FIL1 [unit : Hz] Input value of cut off frequency of FIL3 [unit : Hz] Input value of pole frequency of EQ [unit : Hz] Input value of zero frequency of EQ [unit : Hz] Input value of gain of FIL3 (0~-10dB) [unit : dB] Input value of gain of EQ (+12~0dB) [unit : dB]
8-2. [Register Setting] panel and [Register Setting] button on right side Click [Register setting] button, then filter coefficient set by 8-1 and 8-2 is written on [Register setting] panel. (It is also written to the actual control register of the AK4645.)
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ASAHI KASEI
[AKD4645-B]
MEASUREMENT RESULTS
1. EXT mode (slave mode)
[Measurement condition] Measurement unit: Audio Precision, System two Cascade EXT Slave Mode MCLK: 256fs BICK: 64fs Bit: 16bit Measurement Frequency: 20Hz 20kHz Power Supply: AVDD=DVDD=HVDD=TVDD=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 88.7 95.6 95.6 +20dB 83.6 87.1 87.1 0dB 88.5 95.6 95.6 R[dB] +20dB 83.5 87.1 87.1 ADC IVOL)
DAC (LOUT/ROUT) characteristics (RL=20k, DAC LOUT/ROUT) L[dB] R[dB] S/(N+D) 20kHzLPF (-3dB) 88.3 88.1 S/N 20kHzLPF + A-weighted 94.4 94.4
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ASAHI KASEI
[AKD4645-B]
2. PLOT DATA 2-1 ADC (LIN2/RIN2
ADC) (+20dB)
AK4645 LIN2 -> ADC (MGain+20dB) THD+N vs Input Level fs=44.1kHz, fin=1kHz
-70 -72 -74 -76 -78 -80 -82 d B F S -84 -86 -88 -90 -92 -94 -96 -98 -100 -120
-110
-100
-90
-80
-70
-60 dBr
-50
-40
-30
-20
-10
Figure 15. THD+N vs. Input Level
AK4645 THD+N vs Input Frequency fs=44.1kHz, -1dB Input
-60 -62 -64 -66 -68 -70 -72 -74 -76 d B F S -78 -80 -82 -84 -86 -88 -90 -92 -94 -96 -98 -100 20 50 100 200 500 Hz 1k 2k 5k 10k 20k
Figure 16. THD+N vs. Input Frequency
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ASAHI KASEI
[AKD4645-B]
AK4645 LIN2-->ADC (MIC=+20dB) Linearity fs=44.1kHz, fin=1kHz
+0 -10 -20
-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 17. Linearity
AK4645 LIN2-->ADC (MIC=+20dB) Frequency Response fs=44.1kHz, -1dB Input
+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
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 18. Frequency Response
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ASAHI KASEI
[AKD4645-B]
AK4645 LIN2-->ADC (MIC=+20dB) FFT fs=44.1kHz, fin=1kHz, -1dB Input
+0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 19. FFT Plot (Input level= -1dBFs)
AK4645 LIN2-->ADC (MIC=+20dB) FFT fs=44.1kHz, fin=1kHz, -60dB Input
+0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 20. FFT Plot (Input level= -60dBFs)
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ASAHI KASEI
[AKD4645-B]
AK4645 LIN2-->ADC (MIC=+20dB) FFT fs=44.1kHz, fin=1kHz, No Signal
+0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 21. FFT Plot (No signal)
AK4645 Crosstalk fs=44.1kHz, -1dB Input, Red -> Lch, Blue-> Rch
-70 -75 -80 -85 -90 -95 -100 d B -105 -110 -115 -120 -125 -130 -135 -140 20
TTTTTTTT
TTTT
T
T
TT
T
T
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 22. Crosstalk Plot
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[AKD4645-B]
2-2 ADC (LIN2/RIN2
ADC) (0dB)
AK4645 LIN2 -> ADC (MGain 0dB) THD+N vs Input Level fs=44.1kHz, fin=1kHz
-70 -72 -74 -76 -78 -80 -82 d B F S -84 -86 -88 -90 -92 -94 -96 -98 -100 -120
-110
-100
-90
-80
-70
-60 dBr
-50
-40
-30
-20
-10
Figure 23. THD+N vs. Input Level
AK4645 THD+N vs Input Frequency fs=44.1kHz, fin=1kHz
-70 -72 -74 -76 -78 -80 -82 d B F S -84 -86 -88 -90 -92 -94 -96 -98 -100 20
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 24. THD+N vs. Input Frequency
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ASAHI KASEI
[AKD4645-B]
AK4645 Linearity fs=44.1kHz, fin=1kHz
+0 -10 -20
-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 25. Linearity
AK4645 Frequency Response fs=44.1kHz, -1dB Input
+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
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 26. Frequency Response
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[AKD4645-B]
AK4645 LIN2-->ADC FFT fs=44.1kHz, fin=1kHz, -1dB Input
+0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 27. FFT Plot (Input level= -1dBFs)
AK4645 LIN2-->ADC FFT fs=44.1kHz, fin=1kHz, -60dB Input
+0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 28. FFT Plot (Input level = -60dBFs)
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ASAHI KASEI
[AKD4645-B]
AK4645 LIN2-->ADC FFT fs=44.1kHz, fin=1kHz, No Signal
+0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 29. FFT Plot ( No signal )
AK4645 Crosstalk fs=44.1kHz, -1dB Input, Red -> Lch, Blue-> Rch
-70 -75 -80 -85 -90 -95 -100 d B -105 -110 -115 -120 -125 -130 -135 -140 20
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 30. Crosstalk Plot
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[AKD4645-B]
2-3 DAC (DAC Vin = 0dB
LOUT/ROUT)
AK4645 DAC -> LINEOUT THD+N vs InputLevel fs=44.1kHz, fin=1kHz
-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 -80 -70 -60 dBFS -50 -40 -30 -20 -10 +0
Figure 31. THD+N vs. Input Level
AK4645 THD+N vs Input Frequency fs=44.1kHz
-60 -62 -64 -66 -68 -70 -72 -74 -76 d B r A -78 -80 -82 -84 -86 -88 -90 -92 -94 -96 -98 -100 20 50 100 200 500 Hz 1k 2k 5k 10k 20k
Figure 32.THD+N vs. Input Frequency (Input Level = 0dBFS)
- 27 -
2006/07
ASAHI KASEI
[AKD4645-B]
AK4645 DAC -> LINEOUT Linearity fs=44.1kHz, fin=1kHz
+0 -10 -20 -30 -40 d B r A -70 -80 -90 -100 -110 -110 -50 -60
-100
-90
-80
-70
-60 dBFS
-50
-40
-30
-20
-10
+0
Figure 33. Linearity
AK4645 DAC -> LINEOUT Frequency Response fs=44.1kHz
+1 +0.8 +0.6 +0.4 +0.2 +0 -0.2 -0.4 -0.6 -0.8
d B r A
-1 20
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 34. Frequency Response
- 28 -
2006/07
ASAHI KASEI
[AKD4645-B]
AK4645 DAC -> LINEOUT FFT fs=44.1kHz, fin=1kHz, 0dB Input
+10 +0 -10 -20 -30 -40 -50 d B r A -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20 50 100 200 500 Hz 1k 2k 5k 10k 20k
Figure 35. FFT Plot (Input level= 0dBFs)
AK4645 DAC -> LINEOUT FFT fs=44.1kHz, fin=1kHz, -60dB Input
+10 +0 -10 -20 -30 -40 -50 d B r A -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20 50 100 200 500 Hz 1k 2k 5k 10k 20k
Figure 36. FFT Plot (Input level = -60dBFs)
- 29 -
2006/07
ASAHI KASEI
[AKD4645-B]
AK4645 DAC -> LINEOUT FFT fs=44.1kHz, fin=1kHz, No signal
+10 +0 -10 -20 -30 -40 -50 d B r A -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20 50 100 200 500 Hz 1k 2k 5k 10k 20k
Figure 37. FFT Plot (No signal)
AK4645 DAC -> LINEOUT Crosstalk fs=44.1kHz
+60 +40 +20 +0 -20 d B -40 -60 -80 -100 -120
T
T
TT
-140 20
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 38. Crosstalk Plot
- 30 -
2006/07
ASAHI KASEI
[AKD4645-B]
Revision History Date (YY/MM/DD) 06/07/12 Manual Revision KM084500 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.
- 31 -
2006/07
A
B
C
D
E
ROUT
LOUT
DGND
E
AGND RIN3 RIN1 RIN2 LIN1 LIN2
MIN/LIN3
JP1 GND
LIN4
E
VCC
VCC T1 TA48033F
GND IN OUT
VCC REG
JP2 REG-SEL
REG C3 0.1u
2 1
C1 47u
D
+
C2 0.1u
L1 10u
32 31 30 29 28 U1 25 27 26
D
ROUT/LON
RIN1/IN1+
LOUT/LOP
LIN2/IN2+
MIN/LIN3
D3V MPWR
1 MPWR
LIN4/IN4+
RIN2/IN2-
LIN1/IN1-
RIN4/IN4-
24
RIN4 C5 + 1u
2
VCOM
MUTET
23
C6 2.2u
+
C4 0.1u
3 AVSS HPL 22
HPL
C7 10u
C8 0.1u
4 AVDD HPR 21
TVDD
C
JP6 TVDD-SEL L2
1 2
JP3 I2C-SEL
C9 4.7n R2 47k
TVDD PDN
short C12 47u +
CDTI/SDA
DVDD
SDTO
9
10
11
12
13
14
15
R6 51
B
R7 51
R8 51
R9 51
R10 51
R11 51
C13 0.1u C14 0.1u + C15 10u TVDD
B
16
TVDD
LRCK
R5 10
CCLK/SCL
CSN
BICK
SDTI
CCLK
CDTI
SDTI
SDTO
A
LRCK
BICK
C16 10u
Title Size Document Number
A3
Date:
A B C D
+
+
R1 10k
JP4 RIN3 RIN3
5
VCOC
6
VCOC/RIN3
AK4645
HPR JP5 HVDD 5V 3.3V VCC REG
C
HVDD
20
C10 0.1u
I2C HVSS 19
C11 + 10u
TP1 R3 51
7 PDN MCKO 18
R4
51
8 CSN/CAD0 MCKI 17
MCKI
A
AKD4645-B
AK4645
Sheet
E
Rev
0 1
of
Tuesday, June 13, 2006
5
A
B
C
D
E
VC-R-P
U2
17 18 16 15 14 VC-R-P VSS2 VSS1 VDD2 VDD1 VSS3 13
C18 2.2u
1
L3 1u
2
+
A
C17 10u
A
VC-R-N
19
VC-R-N
VCOIL
12
3
D1 VC-L-P
20 VC-L-P TEST 11
1 2 5 6
D3V JP7 BST-PD
B
+
+ + DIODE-SS2003M C19 10u D3V
B
VC-L-N
21
VC-L-N
AK7830
BST-PDN
10
GND
VFB 9
22
VSS4
C20 0.1u
8
VCC
23
VBAT
DVDDI
D3V
IN-L-N
IN-L-P
IN-R-N
IN-R-P
24
PDN SDA SCL VC
7
SPK-PDN
1
2
3
4
5
6
C21 0.1u LOUT C23 0.1u
C
AK7830
C22 0.01u
CDTI CCLK
C
ROUT
D3V
K
D2 HSU119
R12 10k FOR-SPK-PDN
L
3 1
D
A
H
D
SW1 C24 SPK-PDN 0.1u
2
E
E
Title Size Document Number
AKD4645-B
AK7830
Sheet
E
Rev
A3
Date:
A B C D
0 2
of
Wednesday, June 14, 2006
5
A
B
C
D
E
C25 47u +
E
R13 short
6 4 3
HPR +
J1 HP
E
HPL J2 LIN4/RIN4
6 4 3
C29 1u RIN4 C27 0.22u C28 0.22u + C30 1u LIN4 +
C26 47u
R14 short
R15 10
R16 10
D
D
J3 MIN/LIN3/RIN3
6 4 3
C31 1u RIN3 R17 20k MIN/LIN3 JP8 LIN3 ROUT R19 20k C33 1u + R18 220
6 4 3
C
C32 1u +
+
J4 LOUT/ROUT
C
J5 LIN2/RIN2
6 4 3
C34 1u RIN2 LOUT C36 1u LIN2 + R22 2.2k MPWR R23 2.2k VC-L-P +
C35 1u +
R20 220 R21 20k
B
TP2 VC-L-P
1 6
B
J6
4 3
TP3 VC-L-N VC-L-N
1
SPP-L
J7 LIN1/RIN1
6 4 3
JP9 RIN1
C37 1u RIN1 VC-R-P C38 1u LIN1 VC-R-N
1 1
TP4 VC-R-P
6
J8
4 3
+ +
TP5 VC-R-N
JP10 LIN1
A
SPP-R
A
Title Size Document Number
AKD4645-B
Input/Output
Sheet
E
Rev
A3
Date:
A B C D
0 3
of
Monday, June 05, 2006
5
A
B
C
D
E
D3V
1
L4 47u
E
PORT1
VCC GND OUT 3 2 1
E
2
C41 10u C39 0.1u + C40 10u R24 470 D3V + C42 0.1u
TORX141
C43 0.47u
R25 18k
45
41
39
47
43
48
46
44
U3
D
42
VCOM
AVSS
40
R
TEST1
AVDD
NC
NC
38
INT1
RX3
RX2
RX1
RX0
37
D
1
IPS0
INT0
36
4114-INT0
2
NC
OCKS0
35
R26 47k
3 DIF0 OCKS1 34
4
TEST2
CM1
33
D3V
R27 47k
5 DIF1 CM0 32
C
6
NC
D3V
1
7
DIF2
AK4114
C
PDN
31
4114-PDN TP6 C44 5p
XTI
30
X1 C45 11.2896MHz 5p
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 DVDD COUT UOUT BOUT VOUT DVSS DVSS TVDD LRCK TX0 TX1
SDTO
25
DIR-SDTO
13
14
15
16
17
18
19
20
21
22
23
C46 0.1u +
C47 0.1u +
24
DIR-LRCK
D3V PORT2
IN VCC
A
DIR-MCLK
C48 10u
3 2 1
R28 5.1 D3V
C49 10u
GND
A
TOTX141
C50 0.1u
Title Size Document Number
AKD4645-B
DIR/DIT
Sheet
E
Rev
A3
Date:
A B C D
0 4
of
Monday, June 05, 2006
5
A
B
C
D
E
JP11 DIR-MCLK DIR-MCLK
E
JP13 DIR-BICK DIR-BICK
E
U4 BICK MCKI SDTI CDTI 3-wire JP12 SDA I2C
3 4 5 6 7 A1 A2 A3 A4 A5 A6 A7 A8 B1 B2 B3 B4 B5 B6 B7 B8 21 20 19 18 17 16 15 3
U5
A1 A2 A3 A4 A5 A6 A7 A8 B1 B2 B3 B4 B5 B6 B7 B8 21 20 19 18 17 16 15 6 5 4 3 2 1
JP14 DIR-LRCK DIR-LRCK RP2
LRCK RP1
6 5 4 3 2 1
4 5 6 7 8 9
CCLK
8 9 10
47k
14 10
47k
14
AVC
D
AVC
D
CSN PDN C52 0.1u
1 2 11 12 VCCA DIR GND GND VCCB VCCB OE GND 24 23 22 13
TVDD C54 0.1u
C51 0.1u
D3V
1 2 11 12 VCCA DIR GND GND VCCB VCCB OE GND 24 23 22 13
D3V TVDD
C53 0.1u
TVDD JP15
Signal V select
TVDD
Master
74AVC8T245
Slave
JP16 DIR-SEL
74AVC8T245
C
C
D3V
R29 R31 R34 PORT4
1 2 3 4 5 10 9 8 7 6
10k 10k 10k
R30 R32 R33
470 470 470
MCLK BICK LRCK SDTI VCC
PORT3
1 2 3 4 5 10 9 8 7 6
GND GND NC NC SDTO
DSP CSN SCL/CCLK SDA/CDTI R35 D3V JP17 CAD0
K
4114-PDN D3 HSU119
1 2 3 4 5 6 1A 1Y 2A 2Y 3A 3Y 4Y 4A 5Y 5A 6Y 6A 8 9 10 11 12 13
D3V 10k JP18 SDTO-IN SPK-PDN FOR-SPK-PDN ADC JP19 SDTI DIR DIR-SDTO SDTO
CTRL
B
R36 10k
L
3 1
A
U6
B
H 4114-INT0 SW2 PDN
2
C55 0.1u D3V C56 0.1u
14 7
Vcc GND
74HC14
R37 1k
K
A
LED1
A
D3V
A
ERF
Title Size Document Number
AKD4645-B
LOGIC
Sheet
E
Rev
A3
Date:
A B C D
0 5
of
Tuesday, June 06, 2006
5


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