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 GND Regulator 3.3V LIN1/ RIN1 Control Data 10pin Header LIN2/ RIN2 MIN/ LIN3/ RIN3 DSP 10pin Header HP AK4644 LOUT/ ROUT SPL AK4114 AK7830 Opt In Opt Out SPR Figure 1. AKD4644-B Block Diagram * Circuit diagram and PCB layout are attached at the end of this manual <KM082800> 2006 / 03 -1- 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.<default> (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 <Default> (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 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. <KM082800> 2006 / 03 -2- ASAHI KASEI [AKD4644-B] (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 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 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 (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 JP10 MCLK BICK JP11 SDTI DIR <KM082800> ADC 2006 / 03 -3- ASAHI KASEI [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. <Default> 2. JP2,JP3 : Connection of mic power. OPEN: Mic power is not connected. SHORT : Mic power is connected. <Default> 3. JP12 : HVDD Select. 3.3V : HVDD is supplied from the regurator (3.3V). <Default> 5V : HVDD is supplied from “VCC” jack (5V). 4. JP16,JP17: Select Pin #5,28 Pin #5 Pin #28 JP16 JP17 AIN3 bit VCOC MIN VCOC Open 0 RIN3 LIN3 RIN3 Short 1 <Default> 5. JP18,JP19,JP20 : Select the input from MIN/LIN3/RIN3. Pin #26 Pin #27 JP18 JP19 JP20 RCV bit ROUT LOUT Open Open Short 0 RCN RCP Short Short Open 1 <Default> 6. JP22 : Select the Power Booster of AK7830. VCC : Power Booster ON GND: Power Booster Off<Default> 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. <KM082800> 2006 / 03 -4- ASAHI KASEI [AKD4644-B] 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. CSN SCL/CCLK SDA/CDTI Connect PC AKD4644-B 10 wire flat cable 10pin Connector 10pin Header Figure 2. Connect of 10 wire flat cable (1) 3-wire Serial Control Mode <Default> The jumper pins should be set to the following. JP14 CAD0 JP15 SDA JP13 I2C_SEL 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 JP15 SDA JP13 I2C_SEL I2C 3-wire (2-2) In case of using CAD0=1 (device address bits). JP14 CAD0 JP15 SDA JP13 I2C_SEL I2C <KM082800> 3-wire 2006 / 03 -5- ASAHI KASEI [AKD4644-B] Analog Input/Output Circuits (1) Input Circuits 1. MIN/LIN3/RIN3 Input Circuit JP17 LIN3 J2 BEEP 4 6 3 R15 20k C14 1u C26 1u + 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 JP3 RIN1 C3 1u + 6 3 RIN1 C2 1u + JP2 LIN1 LIN1 Figure 4. LIN1/RIN1 Input Circuit 3. LINE2 Input Circuit C18 1u + J3 LIN2/RIN2 LIN2 4 6 3 C19 1u + RIN2 Figure 5. LIN2/RIN2 Input Circuit <KM082800> 2006 / 03 -6- ASAHI KASEI [AKD4644-B] (2) Output Circuits 1. Headphone-amp Output Circuit R14 0(SHORT) C13 47u 4 HPL + 6 3 + J1 HP HPR C15 47u C16 0.22u C17 0.22u R17 10 R18 10 R16 0(SHORT) Figure 6. Headphone-amp Output Circuit 2. STEREO LINE Output Circuit JP19 RCP LOUT C20 1u + R21 220 J6 LOUT/ROUT/RCV 4 R22 20k 6 3 JP20 LINEOUT ROUT C21 1u + R23 220 R24 20k JP18 RCN Figure 7. STEREO LINE Output Circuit <KM082800> 2006 / 03 -7- ASAHI KASEI 3. [AKD4644-B] External SPEAKER-Amp(AK7830) Output Circuit VC_L_P VC_L_P VC_L_N 6 J8 SPP_L 4 VC_L_N 3 VC_R_P VC_R_P VC_R_N 6 J7 SPP_R 4 VC_R_N 3 Figure 8. External SPEAKER-Amp(AK7830) Output Circuit ∗ AKM assumes no responsibility for the trouble when using the above circuit examples. <KM082800> 2006 / 03 -8- 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. <KM082800> 2006 / 03 -9- 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. <KM082800> 2006 / 03 - 10 - ASAHI KASEI [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”. <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 AK4644. The file type is the same as [SAVE]. <Operation flow> (1) Click [OPEN] Button. (2) Select the file (*.akr) and Click [OPEN] Button. <KM082800> 2006 / 03 - 11 - ASAHI KASEI [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] <KM082800> 2006 / 03 - 12 - 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 <KM082800> 2006 / 03 - 13 - ASAHI KASEI [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. <KM082800> 2006 / 03 - 14 - 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. <KM082800> 2006 / 03 - 15 - ASAHI KASEI [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. <KM082800> 2006 / 03 - 16 - ASAHI KASEI [AKD4644-B] 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 Æ ADC Æ IVOL) L[dB] R[dB] MIC-Amp Gain 0dB +20dB 0dB +20dB S/(N+D) 20kHzLPF (−1dB) DR 20kHzLPF + A-weighted S/N 20kHzLPF + A-weighted 90.8 95.6 95.7 90.2 95.6 95.7 84.3 87.4 87.4 84.2 87.4 87.4 DAC (LOUT/ROUT) characteristics (RL=10kΩ, DAC Æ LOUT/ROUT) L[dB] R[dB] S/(N+D) 20kHzLPF (−3dB) 89.7 89.7 S/N 20kHzLPF + A-weighted 94.6 94.6 <KM082800> 2006 / 03 - 17 - ASAHI KASEI [AKD4644-B] 2. PLOT DATA 2-1 ADC (LIN2/RIN2 Æ ADC) (+20dB) AKM AK4644 THD+N vs Input Level fs=44.1kHz , fin=1kHz -60 -62.5 -65 -67.5 -70 -72.5 -75 -77.5 d B F S -80 -82.5 -85 -87.5 -90 -92.5 -95 -97.5 -100 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 dBr Figure 13. THD+N vs. Input Level AKM AK4644 THD+N vs Input Frequency fs=44.1kHz , -1dB Input -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 50 100 200 500 1k 2k 5k 10k 20k Hz Figure 14. THD+N vs. Input Frequency <KM082800> 2006 / 02 - 18 - ASAHI KASEI [AKD4644-B] AKM AK4644 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 -50 -40 -30 -20 -10 +0 dBr Figure 15. Linearity AKM AK4644 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 1k 2k 5k 10k 20k Hz Figure 16. Frequency Response <KM082800> 2006 / 02 - 19 - ASAHI KASEI [AKD4644-B] AKM AK4644 AIN2 -> 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 1k 2k 5k 10k 20k 5k 10k 20k Hz Figure 17. FFT Plot (Input level= -1dBFs) AKM AK4644 AIN2 -> 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 1k 2k Hz Figure 18. FFT Plot (Input level= -60dBFs) <KM082800> 2006 / 02 - 20 - ASAHI KASEI [AKD4644-B] AKM AK4644 AIN2 -> ADC FFT fs=44.1kHz , fin=1kHz , No Signal +0 -10 -20 -30 -40 -50 -60 -70 d B F S -80 -90 -100 -110 -120 -130 -140 -150 -160 20 50 100 200 500 1k 2k 5k 10k 20k Hz Figure 19. FFT Plot (No signal) AKM AK4644 Crosstalk fs=44.1kHz , -1dB Input RED : Rch ->Lch , BLUE : Lch -> Rch -70 -75 -80 -85 -90 -95 -100 d B -105 -110 -115 -120 -125 -130 -135 -140 20 50 100 200 500 1k 2k 5k 10k 20k Hz Figure 20. Crosstalk Plot <KM082800> 2006 / 02 - 21 - ASAHI KASEI [AKD4644-B] 2-2 ADC (LIN2/RIN2 Æ 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 -50 -40 -30 -20 -10 dBr last.at2c Figure 21. THD+N vs. Input Frequency AKM AK4644 THD+N vs Input Frequency fs=44.1kHz , -1dB Input -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 50 100 200 500 1k 2k 5k 10k 20k Hz Figure 22. THD+N vs. Input Frequency <KM082800> 2006 / 02 - 22 - ASAHI KASEI [AKD4644-B] AKM AK4644 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 -50 -40 -30 -20 -10 +0 dBr Figure 23. Linearity AKM AK4644 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 1k 2k 5k 10k 20k Hz Figure 24. Frequency Response <KM082800> 2006 / 02 - 23 - ASAHI KASEI [AKD4644-B] AKM AK4644 AIN2 -> ADC FFT fs=44.1kHz , fin=1kHz , -1dB +0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20 50 100 200 500 1k 2k 5k 10k 20k 5k 10k 20k Hz Figure 25. FFT Plot (Input level= -1dBFs) AKM AK4644 AIN2 -> ADC FFT fs=44.1kHz , fin=1kHz , -1dB +0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20 50 100 200 500 1k 2k Hz Figure 26. FFT Plot (Input level = -60dBFs) <KM082800> 2006 / 02 - 24 - ASAHI KASEI [AKD4644-B] AKM AK4644 AIN2 -> ADC FFT fs=44.1kHz , fin=1kHz , -1dB +0 -10 -20 -30 -40 -50 -60 -70 d B F S -80 -90 -100 -110 -120 -130 -140 -150 -160 20 50 100 200 500 1k 2k 5k 10k 20k Hz Figure 27. FFT Plot ( No signal ) AKM AK4644 Crosstalk fs=44.1kHz , -1dB Input RED : Rch ->Lch , BLUE : Lch -> Rch -70 -75 -80 -85 -90 -95 -100 d B -105 -110 -115 -120 -125 -130 -135 -140 20 50 100 200 500 1k 2k 5k 10k 20k Hz Figure 28. Crosstalk Plot <KM082800> 2006 / 02 - 25 - ASAHI KASEI [AKD4644-B] 2-3 DAC (DACÆ LOUT/ROUT) AKM AK4644 DAC -> LINEOUT THD+N vs Input Level fs=44.1kHz , fin=1kHz -60 -62.5 -65 -67.5 -70 -72.5 -75 d B r -77.5 A -82.5 -80 -85 -87.5 -90 -92.5 -95 -97.5 -100 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dBFS Figure 29. THD+N vs. Input Level AKM AK4644 DAC -> LINEOUT THD+N vs Input Frequency fs=44.1kHz , fin=1kHz -60 -62.5 -65 -67.5 -70 -72.5 -75 d B r -77.5 A -82.5 -80 -85 -87.5 -90 -92.5 -95 -97.5 -100 20 50 100 200 500 1k 2k 5k 10k 20k Hz Figure 30.THD+N vs. Input Frequency <KM082800> 2006 / 02 - 26 - ASAHI KASEI [AKD4644-B] AKM AK4644 DAC -> LINEOUT Linearity fs=44.1kHz , fin=1kHz +0 -10 -20 -30 -40 d B r A -50 -60 -70 -80 -90 -100 -110 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dBFS Figure 31. Linearity AKM AK4644 DAC -> LINEOUT Frequency Response fs=44.1kHz , fin=1kHz +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 6k 8k 10k 12k 14k 16k 18k 20k Hz Figure 32. Frequency Response <KM082800> 2006 / 02 - 27 - ASAHI KASEI [AKD4644-B] AKM AK4644 DAC --> Lineout FFT fs=44.1kHz , fin=1kHz , 0dB Input +10 +0 -10 -20 -30 -40 -50 d B r -60 -70 -80 A -90 -100 -110 -120 -130 -140 -150 -160 20 50 100 200 500 1k 2k 5k 10k 20k Hz Figure 33. FFT Plot (Input level= 0dBFs) AKM AK4644 DAC --> Lineout FFT fs=44.1kHz , fin=1kHz , -60dB Input +0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20 50 100 200 500 1k 2k 5k 10k 20k Hz Figure 34. FFT Plot (Input level = -60dBFs) <KM082800> 2006 / 02 - 28 - ASAHI KASEI [AKD4644-B] AKM AK4644 DAC --> Lineout FFT fs=44.1kHz , fin=1kHz , No Signal +0 -10 -20 -30 -40 -50 -60 d B r -70 -80 -90 A -100 -110 -120 -130 -140 -150 -160 20 50 100 200 500 1k 2k 5k 10k 20k Hz 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 1k 2k 5k 10k 20k Hz Figure 36. Crosstalk Plot <KM082800> 2006 / 02 - 29 - ASAHI KASEI [AKD4644-B] Revision History Date (YY/MM/DD) 06/03/08 Manual Revision KM082800 Board Revision 0 Reason Contents First Edition IMPORTANT NOTICE • These products and their specifications are subject to change without notice. Before considering any use or application, consult the Asahi Kasei Microsystems Co., Ltd. (AKM) sales office or authorized distributor concerning their current status. • AKM assumes no liability for infringement of any patent, intellectual property, or other right in the application or use of any information contained herein. • Any export of these products, or devices or systems containing them, may require an export license or other official approval under the law and regulations of the country of export pertaining to customs and tariffs, currency exchange, or strategic materials. • AKM products are neither intended nor authorized for use as critical components in any safety, life support, or other hazard related device or system, and AKM assumes no responsibility relating to any such use, except with the express written consent of the Representative Director of AKM. As used here: (a) A hazard related device or system is one designed or intended for life support or maintenance of safety or for applications in medicine, aerospace, nuclear energy, or other fields, in which its failure to function or perform may reasonably be expected to result in loss of life or in significant injury or damage to person or property. (b) A critical component is one whose failure to function or perform may reasonably be expected to result, whether directly or indirectly, in the loss of the safety or effectiveness of the device or system containing it, and which must therefore meet very high standards of performance and reliability. • It is the responsibility of the buyer or distributor of an AKM product who distributes, disposes of, or otherwise places the product with a third party to notify that party in advance of the above content and conditions, and the buyer or distributor agrees to assume any and all responsibility and liability for and hold AKM harmless from any and all claims arising from the use of said product in the absence of such notification. <KM082800> 2006 / 03 - 30 - A B C D E JP1 GND AGND E ROUT RIN2 LIN2 LIN1 RIN1 RIN3 E LOUT MIN/LIN3 DGND + C1 1u + + JP13 I2C-SEL C10 4.7n R3 10k MUTET ROUT / RCN 25 27 28 LOUT / RCP 30 29 MIN / LIN3 4 RIN2 / IN2- 3 LIN2 / IN2+ VCOM LIN1 / IN1- 2 32 HPL 24 HPL HPR 23 HPR AVSS HVSS 22 AVDD HVDD 21 C5 0.1u C6 10u C7 0.1u C8 0.1u REG C MPWR AK4644 JP16 RIN3 RIN3 C9 10u JP12 HVDD 5V VCC 3.3V REG C 5 VCOC/RIN3 TEST2 20 6 I2C TEST1 19 7 PDN MCKO 18 8 CSN/CAD0 MCKI 17 VCOC + C4 2.2u 1 RIN1/IN1+ MPWR 26 D U6 31 D R4 47k TP2 51 MCKI 16 DVSS DVDD 15 14 BICK LRCK 13 12 SDTI 10 9 SDTO 51 11 R7 CSN CDTI / SDA R6 PDN CCLK/SCL R5 10 C11 0.1u B R9 51 R10 51 R11 51 R12 51 B R13 51 BICK LRCK SDTO SDTI CDTI CCLK + R8 51 C12 10u A A Title Size A3 Date: A B C D AKD4644-B Document Number Rev AK4644 Wednesday, February 08, 2006 Sheet E 0 1 of 6 A C D C15 47u RIN3 R15 20k MIN/LIN3 + 4 3 C13 47u LIN3 C19 1u 6 J1 HP 4 3 E HPL JP17 J3 LIN2/RIN2 6 HPR + C14 1u 6 E R16 0(SHORT) + C26 1u J2 MIN/LIN3/RIN3 + E B C16 0.22u C17 0.22u R17 10 R18 10 R14 0(SHORT) + RIN2 4 3 D D C18 1u + LIN2 R1 2.2k MPWR R2 2.2k J5 LIN1/RIN1 JP3 RIN1 6 C C3 1u C + RIN1 4 3 C2 1u LIN1 + JP2 LIN1 JP18 TP5 VC-L-P VC-L-N R24 20k 1 4 3 JP20 LINEOUT J7 C20 1u 4 3 R21 220 LOUT 1 VC-R-N ROUT 6 TP4 VC-R-N B J6 LOUT/ROUT/RCV 6 SPP-L TP3 VC-R-P VC-R-P R23 220 + 4 3 1 TP6 VC-L-N RCN C21 1u J8 6 + VC-L-P 1 B R22 20k SPP-R A A JP19 Title RCP Size A3 Date: A B C D AKD4644-B Document Number Rev Input/Output Wednesday, February 08, 2006 Sheet E 0 2 of 6 A B C D E VCC D3V 1 VCC L1 47u T1 TA48033F GND OUT 2 1 TORX141 C27 10u + C29 10u C28 0.1u R25 470 IN D3V C30 0.1u C22 47u + REG E REG OUT 1 3 + VCC JP21 REG-SEL C23 0.1u C24 0.1u L2 10u 2 PORT1 GND 2 E VCC D3V C31 0.47u C25 0.1u R26 18k for 74HC14 1 37 U3A 74HC14 INT1 38 AVDD 39 40 R AVSS VCOM 41 42 RX0 43 NC 44 RX1 45 TEST1 46 RX2 D NC RX3 47 48 D3V U2 IPS0 INT0 36 1 D 14 2 7 R27 1k LED1 K A D3V ERF 2 NC OCKS0 35 3 DIF0 OCKS1 34 4 TEST2 CM1 33 5 DIF1 CM0 32 6 NC PDN 31 R38 47k R28 47k AK4114 C DIF2 8 C32 5p X1 11.2896MHz C33 5p XTI 30 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 C TP1 2 D3V 4114_PDN 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 14 TVDD C34 0.1u + 13 TX0 B DVSS B R29 5.1 D3V A C38 0.1u Title Size A3 Date: A B C D AKD4644-B Document Number Rev DIR/DIT Wednesday, February 08, 2006 Sheet E 0 3 of 6 A B C D E U4 11 Y8 A8 9 12 Y7 A7 8 LRCK 13 Y6 A6 7 SDTI 14 Y5 A5 6 15 Y4 A4 5 CCLK 16 Y3 A3 4 CSN 17 Y2 A2 3 PDN 18 Y1 A1 2 10 GND G2 19 20 VCC G1 1 MCKI JP6 BICK2 E BICK E JP7 LRCK2 JP15 SDA JP8 LRCK DIR_LRCK 3-wire CDTI I2C D D C39 0.1u D3V 74LVC541 JP9 MCLK C REG PORT4 1 2 3 4 5 10 9 8 7 6 CTRL R30 10k R33 10k R35 10k R31 R32 R34 JP10 BICK 470 470 470 C DIR_MCLK MCLK BICK LRCK SDTI VCC DIR_BICK PORT3 1 2 3 4 5 10 9 8 7 6 DSP CSN SCL/CCLK SDA/CDTI R36 D3V 10k JP14 CAD0 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 Size A3 Date: A B C D AKD4644-B Document Number Rev LOGIC 0 Wednesday, February 08, 2006 Sheet E 4 of 6 A B C D E E E D D D3V U3F 74HC14 13 14 12 7 C C B B A A Title Size A3 Date: A B C D AKD4644-B Document Number Rev PIN 0 Wednesday, February 08, 2006 Sheet E 5 of 6 A B C + A D E C44 10u A + L3 1u VSS3 D5 VC-R-N VC-R-N VCOIL VC-L-P VC-L-P TEST VC-L-N VC-L-N BST-PDN 1 2 + VSS1 VSS2 VDD1 VDD2 VC-R-P 1 C45 2.2u U5 2 VC-R-P C46 10u DIODE JP22 VCC BST-PD VBAT DVDDI IN-R-N VFB B C47 0.1u D3V SPK-PDN SDA SCL PDN VC IN-L-P VCC GND VSS4 IN-R-P VCC AK7830 IN-L-N B AK7830 C42 0.1u LOUT C41 0.01u C43 0.1u CDTI ROUT C CCLK VCC K D3V R39 10k U3D 74HC14 A D4 HSU119 9 14 8 7 U3E 74HC14 14 10 7 11 SPK-PDN 3 H D 1 L D C 2 SW2 C48 SPK-PDN 0.1u E E Title Size A3 Date: A B C D AKD4644-B Document Number Rev AK7830 Wednesday, February 08, 2006 Sheet E 0 6 of 6