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| ASAHI KASEI [AKD4646-B] AKD4646-B AK4646 Evaluation board Rev.1 GENERAL DESCRIPTION AKD4646-B is an evaluation board for the AK4646, Stereo CODEC with built-in MIC/SPK amplifier. The AKD4646-B can evaluate A/D converter and D/A converter separately in addition to loop-back mode (A/D D/A). The AKD4646-B also has the digital audio interface and can achieve the interface with digital audio systems via opt-connector. Ordering guide AKD4646-B --Evaluation board for AK4646 (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 3.3V GND LIN1/ RIN1 LIN2/ RIN2 MIN Control Data 10pin Header DSP 10pin Header LOUT/ ROUT AK4646 AK4114 Opt In Opt Out Figure 1. AKD4646-B Block Diagram * Circuit diagram and PCB layout are attached at the end of this manual 2006 / 08 ASAHI KASEI [AKD4646-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 AK4646 via the regulator, JP21 should be set to "REG" side and VCC should be 5.0V. Evaluation mode (1) Slave mode (1-1) Evaluation of Recording block (MIC, ADC) using DIT of AK4114 (1-2) Evaluation of Playback block (SPK, LOUT) using DIR of AK4114 (1-3) Evaluation of Loop-back using AK4114 (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. 2006 / 08 ASAHI KASEI [AKD4646-B] (1-3) Evaluation of Loop-back using AK4114 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 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 (LOOP bit = "1"). It is possible to evaluate at various sampling frequencies using built-in AK4646'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 AK4646's PLL. JP6 BICK2 JP7 LRCK2 JP8 LRCK JP9 MCLK JP10 BICK JP11 SDTI DIR ADC 2006 / 08 ASAHI KASEI [AKD4646-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. The function of the toggle SW [SW1] (PDN): Power down of AK4646 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. 2006 / 08 ASAHI KASEI [AKD4646-B] Serial Control The AK4646 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 AKD4646. Connect PC CSN CCLK CDTI AKD4646-B 10 wire flat cable 10pin Connector 10pin Header Figure 2. Connect of 10 wire flat cable 2006 / 08 ASAHI KASEI [AKD4646-B] Analog Input/Output Circuits (1) Input Circuits 1. MIN Input Circuit J2 MIN 6 4 3 C14 1u + R15 20k MIN Figure 3. MIN Input Circuit 2. LINE1 Input Circuit R1 2.2k MPWR R2 2.2k J5 LIN1/RIN1 6 4 3 JP3 RIN1 C3 1u RIN1 + C2 1u LIN1 + JP2 LIN1 Figure 4. LIN1/RIN1 Input Circuit 3. LINE2 Input Circuit J3 LIN2/RIN2 C19 1u RIN2 + 6 4 3 C18 1u LIN2 + Figure 5. LIN2/RIN2 Input Circuit 2006 / 08 ASAHI KASEI [AKD4646-B] (2) Output Circuits 1. STEREO LINE Output Circuit C21 1u + ROUT R24 20k R23 220 6 4 3 J6 LOUT/ROUT JP20 LINEOUT C20 1u LOUT R22 20k + R21 220 Figure 6. STEREO LINE Output Circuit 2. SPEAKER Output Circuit R19 10 J4 SPK-JACK SPK1 D1 CN1 Piezo(EXT) Dynamic SPP 020S16 P 2 SPP D2 SPN Dynamic Piezo(EXT) 1 N SPN R20 10 Figure 7. SPEAKER Output Circuit 2006 / 08 ASAHI KASEI [AKD4646-B] Control Software Manual Set-up of evaluation board and control software 1. Set up the AKD4646-B according to previous term. 2. Connect IBM-AT compatible PC with AKD4646-B by 10-line type flat cable (packed with AKD4646-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 "AKD4646-B Evaluation Kit" into the CD-ROM drive. 4. Access the CD-ROM drive and double-click the icon of "AKD4646.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 AK4646 Write all registers that is currently displayed Dialog to write data by keyboard operation. Dialog to evaluate IPGA and ATTL/ATTR. 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 ASAHI KASEI [AKD4646-B] 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 AK4646, 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 AK4646, 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 AK4646 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 AK4646, click [OK] button. If not, click [Cancel] button. 2006 / 08 ASAHI KASEI [AKD4646-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". 2006 / 08 ASAHI KASEI [AKD4646-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] 2006 / 08 ASAHI KASEI [AKD4646-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 2006 / 08 ASAHI KASEI [AKD4646-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. 2006 / 08 ASAHI KASEI [AKD4646-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. 2006 / 08 ASAHI KASEI [AKD4646-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. 2006 / 08 ASAHI KASEI [AKD4646-B] 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 13 opens when push a [Filter] button . Figure13. Main Window 2006 / 08 ASAHI KASEI [AKD4646-B] 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 LPF Cut Off Frequency EQ for Gain Compensation (EQ0) Pole Frequency Zero-point Frequency Gain 5 Band Equalizer EQ1-5 Center Frequency Contents Sampling frequency (fs) Stereo separation emphasis filter cut cff frequency Type of stereo separation emphasis filter Gain of stereo separation emphasis filter High pass filter cut off frequency Setting range 7350Hz fs 48000Hz fs/10000 Cut Off Frequency (0.497 * fs) LPF or HPF -10dB Gain 0dB Cut Off Frequency (0.497 * fs) fs/10000 Low pass filter cut off frequency fs/20 Cut Off Frequency (0.497 * fs) Pole Frequency Zero-point Frequency Gain EQ1-5 Center Frequency 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 fs/10000 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. (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") Figure14. Filter ON/OFF setting button 2006 / 08 ASAHI KASEI [AKD4646-B] 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. Figure15. 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" 2006 / 08 ASAHI KASEI [AKD4646-B] 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. Figure16. 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 17). 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 18). 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. 2006 / 08 ASAHI KASEI [AKD4646-B] Setting of center frequency: 4400Hz, 5000Hz, 5400Hz / Band Width : 200Hz(3 band common) Figure17. When there is no revision of center frequency Setting of center frequency: 4400Hz, 5000Hz, 5400Hz / Band Width : 200Hz(3 band common) Figure18. When there is revision of center frequency 2006 / 08 ASAHI KASEI [AKD4646-B] Revision History Date (YY/MM/DD) 06/06/20 06/08/25 Manual Revision KM084100 KM084101 Board Revision 0 1 Reason First Edition Parts Change * AK4646 Rev.A AK4646 Rev.B * C10 4.7nF 10nF 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. 2006 / 08 A B C D E DGND JP1 GND AGND E E RIN1 LIN1 LIN2 RIN2 LOUT BEEP ROUT VCC T45_R 1 1 DGND T45_B AGND T45_B 1 VCC D D 29 28 31 32 30 27 U5 MIN LOUT LIN1/IN1LIN2/IN2+ RIN2/IN2ROUT NC MPWR MPWR NC 2 VCOM NC RIN1/LIN1+ 1 26 25 24 23 C4 2.2u C5 0.1u 3 AVSS SVSS 22 + C6 10u 4 AVDD C7 0.1u C8 0.1u REG C10 10n 5 VCOC SPP 20 C R3 10k AK4646 SPN 19 SVDD 21 6 NC R6 PDN PDN MCKO 7 18 R5 10 R7 CSN CSN CCLK CDTI SDTI SDTO LRCK BICK DVDD DVSS MCKI 8 17 51 51 MCKI 9 10 11 12 13 14 15 C11 0.1u R8 51 R9 51 R10 51 R11 51 R12 51 R13 51 + B B CDTI CCLK SDTI A SDTO LRCK BICK C12 10u 16 A B C + + + + C9 10u REG C SPP SPN TEST2 A Title Size Document Number AKD4646-B Rev A3 Date: D AK4646 Monday, August 28, 2006 Sheet E 1 1 of 5 A B C D E E J2 BEEP BEEP E 6 C14 1u R15 20k 4 3 + J3 LIN2/RIN2 RIN2 + C19 1u 6 4 3 D D C18 1u LIN2 + R1 2.2k MPWR SPP R2 2.2k D1 A K Piezo(EXT) Dynamic R19 10 3 4 6 J4 SPK-JACK SPK1 CN1 P 2 C 020S16 J5 LIN1/RIN1 DIODE ZENER RIN1 D2 A K C 6 JP3 RIN1 JP5 SPKP + C3 1u 4 3 Dynamic Piezo(EXT) 1 C2 1u DIODE ZENER LIN1 + JP4 SPKN N JP2 LIN1 SPN R20 10 B C21 1u + ROUT R24 20k R23 220 6 4 3 J6 LOUT/ROUT B C20 1u LOUT R22 20k + R21 220 A A Title Size Document Number AKD4646-B Rev A3 Date: B C D Input/Output Monday, August 28, 2006 Sheet E 1 2 of 5 A A B C D E VCC REG 1 VCC L1 47u T1 TA48033F C27 10u IN OUT E 2 PORT1 VCC GND OUT 2 1 3 E REG C24 0.1u 2 1 TORX141 C28 0.1u + C30 0.1u + C29 10u R25 470 C22 47u C23 0.1u L2 10u + REG GND D3V C25 0.1u for 74HC14 D3V 48 46 44 47 43 42 45 41 39 C31 0.47u R26 18k U2 R NC NC RX3 RX2 RX1 RX0 AVSS TEST1 VCOM AVDD INT1 D 40 38 37 U3A 74HC14 R27 1k K INT0 36 1 14 2 7 D LED1 A 1 IPS0 D3V ERF 2 NC OCKS0 35 D3V R38 47k 3 DIF0 OCKS1 34 4 TEST2 CM1 33 R28 47k 5 DIF1 CM0 32 4114_PDN C C 6 NC PDN 31 DIF2 XTI 1 7 AK4114 XTO DAUX MCKO2 BICK C32 5p 30 TEST1 X1 11.2896MHz IPS1 2 8 29 C33 5p 9 P/SN 28 SDTO 27 10 XTL0 11 XTL1 26 DIR_BICK B B 12 VIN TVDD DVSS TX0 TX1 BOUT COUT UOUT SDTO VOUT DVDD DVSS MCKO1 LRCK 25 DIR_SDTO 13 14 15 16 17 18 19 20 21 22 23 24 C34 0.1u + C35 0.1u + DIR_LRCK D3V C36 10u REG R29 5.1 C37 10u DIR_MCLK PORT2 IN VCC 3 2 A GND 1 A TOTX141 C38 0.1u Title Size Document Number AKD4646-B Rev A3 Date: B C D DIR/DIT Monday, August 28, 2006 Sheet E 1 3 of 5 A A B C D E U4 MCKI Y8 A8 11 9 E E JP6 BICK2 12 Y7 A7 8 BICK JP7 LRCK2 13 Y6 A6 7 JP8 LRCK DIR_LRCK LRCK 14 Y5 A5 6 SDTI 15 Y4 A4 5 CDTI 16 Y3 A3 4 CCLK 17 Y2 A2 3 D CSN D PDN Y1 A1 10 GND G2 19 18 2 C39 0.1u 20 VCC G1 1 D3V 74LVC541 C JP9 MCLK JP10 BICK DIR_BICK DIR_MCLK PORT3 C REG R30 10k R33 10k R31 R32 R34 470 470 470 R35 10k MCLK BICK LRCK SDTI VCC 1 2 3 4 5 10 9 8 7 6 PORT4 DSP R36 D3V 10k 1 2 3 4 5 10 9 8 7 6 CSN SCL/CCLK SDA/CDTI CTRL ADC JP11 SDTI DIR D3V K B SDTO B DIR_SDTO D3V D3 A R37 10k HSU119 3 U3B 74HC14 14 4 7 5 U3C 74HC14 14 6 7 4114_PDN L 3 1 H SW1 PDN 2 A C40 0.1u Title Size Document Number A AKD4646-B Rev A3 Date: B C D LOGIC Monday, August 28, 2006 Sheet E 1 4 of 5 A A B C D E E E D D D3V U3F 74HC14 13 14 12 7 U3E 74HC14 11 14 10 7 U3D 74HC14 C C 9 14 8 7 B B A A Title Size Document Number AKD4646-B Rev A3 Date: B C D PIN Monday, August 28, 2006 Sheet E 1 5 of 5 A |
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