[AKD4424-SA] AKD4424-SA AK4424 Evaluation Board Rev.1 General Description AKD4424-SA is an evaluation board for AK4424 (192kHz sampling 24Bit StereoΔΣDAC with 2Vrms Output). AKD4424-SA has a digital audio interface (AK4115) of Optical input and can easily achieve the interface with digital audio system. Therefore, it is easy to evaluate the sound quality of AK4424. Ordering Guide AKD4424-SA ---- AK4424 Evaluation Board Function □ On-board digital audio interface. (AK4115) REG:12V->3.3V VCC:3.3V REG:12V->5V VDD:5V CVDD:5V BNC Connector Lch COAX In AK4115 AK4424 Opt In TORX141 BNC Connector Rch DIR Port2 External Figure 1. AKD4424-SA Block diagram (* Circuit diagram are attached at the end of this manual.) KM092501 1 2008/03 [AKD4424-SA] Board Outline Chart Outline Chart PORT1 CVDD COAX AGND VDD VCC REG U3 SW2 T2 T1 U2 H LOUT 1 SW1 1 L U1 TEST1 PORT2 ROUT 1 10 Figure 2. AKD4424-SA Outline Chart Comment (1) LOUT, ROUT (BNC-JACK) It is analog signal output Jack. The signal is output from LOUT/ROUT pins. (2) COAX, PORT1, PORT2 (Digital signal connector) COAX (BNC-JACK): Digital signal (SPDIF, Fs: 24∼48kHz) is input to the AK4115. (Default) PORT1 (Optical Connecter): Optical digital signal (SPDIF, Fs: 32∼48kHz) is input to the AK4115. PORT2 (10 pin header): The clock and data can be input and output with this connector. (3) REG, VDD, AGND, CVDD, VCC These are the power supply connectors. Connect power supply with these pins. As for the detail comments, refer to the setup of power supply in P3. (4) SW1, SW2 (Switch) SW1: Setting of frequency of MCKO that is output from AK4115. SW2: Reset of AK4115. Keep “H” during normal operation. KM092501 2 2008/03 [AKD4424-SA] Operation sequence 1) Set up the power supply lines. Each supply line should be distributed from the power supply unit. Name of jack VDD1 Color of jack Red Typ Voltage +5V Voltage Range +4.5∼+5.5V Using Default Setting VDD of AK4424 Connected to +5V CVDD1 Red +5V +4.5∼+5.5V CVDD of AK4424 Connected to +5V VCC1 Red +3.3V +3.0∼+3.6V AVDD, DVDD, TVDD, OVDD of AK4115 and VCC of Logic Connected to +3.3V +12V (Note 1) +5.8V~+20V Regulator: T2: +12V +3.3V (AVDD, DVDD, TVDD, OVDD of AK4115 and VCC of Logic circuit) Ground circuit AGND2 Black 0V 0V REG Red +12V (Note 2) +7V~+25V Regulator: T1: +12V +5V (VDD, CVDD of AK4424) Connected to GND (Should be connected) Open (Not connected) Table 1.Set up of power supply lines Note 1 ) Use regulator: T2 can supply AK4115 with clear voltage： R36: Short (0Ω) Open; R34,R35:Open Short (0Ω); Connect to VCC with 12V power supply. Note 2 ) Use regulator: T1 can supply AK4424 with clear voltage： R25,R44: Short (0Ω) Open; R37,R43:Open Short (0Ω); VDD, CVDD should be open. Connect to REG with 12V power supply. 2) DIP Switch setting: Refer to Table 2 and Table 3 3) Power Down: The AK4115 should be reset once by bringing SW2 (AK4115 PDN) “L” upon power-up. Evaluation mode 1. Using DIR (Optical Link) The DIR generates MCLK, BICK, LRCK and SDATA from the received data through optical connector (PORT1: TORX141). It is possible to evaluate the AK4424 by using CD disk. Setting: R19: Open 470Ω; R33: short (0Ω) Open 2. Using DIR (COAX) (Default) The DIR generates MCLK, BICK, LRCK and SDATA from the received data through BNC connector (J3). It is possible to evaluate the AK4424 by using CD disk. Setting: R19: Open; R33: short (0Ω); (Default) ＊ COAX is recommended for an evaluation of the Sound quality. 3. Supply all interface signals that includ master clock via PORT2 from external equipments.. Setting: R11: 5.1Ω Open R12, R13, R14: 51Ω Open R15, R16, R17, R18: Open 51Ω or short (0Ω) Note) The above work of removing (open) or shorting resistors need to modify the connection by soldering. KM092501 3 2008/03 [AKD4424-SA] Setting of DIP switch [SW1]: AK4115 setting No. Pin 1 2 OCKS1 OCKS0 OCKS1 0 1 1 OCKS0 0/1 0 1 OFF ON AK4115’s Master Clock setting Look Table 3 Table 2. SW1 setting MCLK Frequency 256fs @ fs=96kHz 512fs @ fs=48kHz 128fs @ fs=192kHz Default の状態 ON OFF Default Table 3. MCLK clock setting Setting of SW2 switch [SW2](PDN): Reset of AK4115. Keep “H” during normal operation. KM092501 4 2008/03 [AKD4424-SA] Measurement Results [Measurement condition] • Measurement unit • MCLK • BICK • fs • Bit • Power Supply • Interface • Temperature : Audio Precision System two Cascade (AP2) : 512fs (fs=44.1KHz) / 256fs (fs=96KHz ) / 128fs (fs=192KHz) : 64fs : 44.1kHz / 96KHz / 192KHz : 24bit : VDD=CVDD=5V : DIR : Room Table Data fs=44.1KHz Parameter Input signal Filter condition Lch S/(N+D) DR S/N 1kHz, 0dB 1kHz, -60dB “0” data 20kLPF 20kLPF, A-weighted 20kLPF, A-weighted 91.4 104.9 105.3 fs=96KHz Parameter S/(N+D) DR S/N Input signal 1kHz, 0dB 1kHz, -60dB “0” data Filter condition 40kLPF 40kLPF, A-weighted 40kLPF, A-weighted 90.8 104.9 105.3 fs=192KHz Parameter S/(N+D) DR S/N Input signal 1kHz, 0dB 1kHz, -60dB “0” data Filter condition 40kLPF 40kLPF, A-weighted 40kLPF, A-weighted 91.2 104.6 104.7 KM092501 Lch Lch 5 Rch 92.1 104.8 105.3 Rch 91.3 104.9 105.3 Rch 91.8 104.6 104.7 2008/03 [AKD4424-SA] Plot Data fs=44.1KHz +0 -10 -20 -30 -40 -50 -60 -70 d B r -80 A -100 -90 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k 5k 10k 20k 2k 5k 10k 20k Hz Figure 3. FFT (0dB) +0 -10 -20 -30 -40 -50 -60 -70 d B r -80 A -100 -90 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k Hz Figure 4. FFT (-60dB) KM092501 6 2008/03 [AKD4424-SA] +0 -10 -20 -30 -40 -50 -60 -70 d B r -80 A -100 -90 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k 5k 10k 20k Hz Figure 5. FFT (No Signal) +0 -10 -20 -30 -40 -50 -60 -70 d B r -80 A -100 -90 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k 5k 10k 20k 50k 100k Hz Figure 6. FFT (Out of Band Noise) KM092501 7 2008/03 [AKD4424-SA] -70 -75 -80 -85 -90 -95 d B r -100 A -110 -105 -115 -120 -125 -130 -135 -140 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dBFS Figure 7. THD + N vs Input Level -70 -75 -80 -85 -90 -95 d B r -100 A -110 -105 -115 -120 -125 -130 -135 -140 20 50 100 200 500 1k 2k 5k 10k 20k Hz Figure 8. THD + N vs Input Frequency KM092501 8 2008/03 [AKD4424-SA] +1 +0.5 -0 -0.5 -1 -1.5 d B r -2 A -2.5 -3 -3.5 -4 -4.5 -5 1k 2k 3k 4k 5k 6k 7k 8k 9k 10k 11k 12k 13k 14k 15k 16k 17k 18k 19k 20k Hz Figure 9. Frequency Response +0 -10 -20 -30 -40 -50 d B r -60 A -80 -70 -90 -100 -110 -120 -130 -140 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dBFS Figure 10. Linearity KM092501 9 2008/03 [AKD4424-SA] -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 11. Crosstalk KM092501 10 2008/03 [AKD4424-SA] fs=96KHz +0 -10 -20 -30 -40 -50 -60 -70 d B r -80 A -100 -90 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k 5k 10k 20k 40k 2k 5k 10k 20k 40k Hz Figure 12. FFT (0dB) +0 -10 -20 -30 -40 -50 -60 -70 d B r -80 A -100 -90 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k Hz Figure 13. FFT (-60dB) KM092501 11 2008/03 [AKD4424-SA] +0 -10 -20 -30 -40 -50 -60 -70 d B r -80 A -100 -90 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k 5k 10k 20k 40k Hz Figure 14. FFT (No Signal) +0 -10 -20 -30 -40 -50 -60 -70 d B r -80 A -100 -90 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k 5k 10k 20k 50k 100k Hz Figure 15. FFT (Out of Band Noise) KM092501 12 2008/03 [AKD4424-SA] -70 -75 -80 -85 -90 -95 d B r -100 A -110 -105 -115 -120 -125 -130 -135 -140 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dBFS Figure 16. THD + N vs Input Level -70 -75 -80 -85 -90 -95 d B r -100 A -110 -105 -115 -120 -125 -130 -135 -140 20 50 100 200 500 1k 2k 5k 10k 20k 40k Hz Figure 17. THD + N vs Input Frequency KM092501 13 2008/03 [AKD4424-SA] +1 +0.5 -0 -0.5 -1 -1.5 d B r -2 A -2.5 -3 -3.5 -4 -4.5 -5 2k 4k 6k 8k 10k 12k 14k 16k 18k 20k 22k 24k 26k 28k 30k 32k 34k 36k 38k 40k Hz Figure 18. Frequency Response +0 -10 -20 -30 -40 -50 d B r -60 A -80 -70 -90 -100 -110 -120 -130 -140 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dBFS Figure 19. Linearity KM092501 14 2008/03 [AKD4424-SA] -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 40k Hz Figure 20. Crosstalk KM092501 15 2008/03 [AKD4424-SA] fs=192KHz +0 -10 -20 -30 -40 -50 -60 -70 d B r -80 A -100 -90 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k 5k 10k 20k 50k 80k 5k 10k 20k 50k 80k Hz Figure 21. FFT (0dB) +0 -10 -20 -30 -40 -50 -60 -70 d B r -80 A -100 -90 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k Hz Figure 22. FFT (-60dB) KM092501 16 2008/03 [AKD4424-SA] +0 -10 -20 -30 -40 -50 -60 -70 d B r -80 A -100 -90 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k 5k 10k 20k 50k 80k Hz Figure 23. FFT (No Signal) +0 -10 -20 -30 -40 -50 -60 -70 d B r -80 A -100 -90 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k 5k 10k 20k 50k 100k Hz Figure 24. FFT (Out of Band Noise) KM092501 17 2008/03 [AKD4424-SA] -70 -75 -80 -85 -90 -95 d B r -100 A -110 -105 -115 -120 -125 -130 -135 -140 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dBFS Figure 25. THD + N vs Input Level -70 -75 -80 -85 -90 -95 d B r A -100 -105 -110 -115 -120 -125 -130 -135 -140 20 50 100 200 500 1k 2k 5k 10k 20k 50k 80k Hz Figure 26. THD + N vs Input Frequency KM092501 18 2008/03 [AKD4424-SA] +1 +0.5 -0 -0.5 -1 -1.5 d B r -2 A -2.5 -3 -3.5 -4 -4.5 -5 5k 10k 15k 20k 25k 30k 35k 40k 45k 50k 55k 60k 65k 70k 75k 80k Hz Figure 27. Frequency Response +0 -10 -20 -30 -40 -50 d B r -60 A -80 -70 -90 -100 -110 -120 -130 -140 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dBFS Figure 28. Linearity KM092501 19 2008/03 [AKD4424-SA] -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 50k 80k Hz Figure 29. Crosstalk KM092501 20 2008/03 [AKD4424-SA] REVISION HISTORY Date (yy/mm/dd) 08/01/24 08/03/17 Manual Revision KM092500 KM092501 Board Revision 0 1 Reason Page First Edition Change 22 Change Change 1 3 Contents Circuit diagram was changed: Regulator: T2: TA48033F uPC3533HF Figure 1. Block diagram was changed. Table 1. Set up of power supply lines was changed. IMPORTANT NOTICE These products and their specifications are subject to change without notice. When you consider any use or application of these products, please make inquiries the sales office of Asahi Kasei EMD Corporation (AKEMD) or authorized distributors as to current status of the products. AKEMD assumes no liability for infringement of any patent, intellectual property, or other rights 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. AKEMD products are neither intended nor authorized for use as critical componentsNote1) in any safety, life support, or other hazard related device or systemNote2), and AKEMD assumes no responsibility for such use, except for the use approved with the express written consent by Representative Director of AKEMD. As used here: Note1) A critical component is one whose failure to function or perform may reasonably be expected to result, whether directly or indirectly, in the loss of the safety or effectiveness of the device or system containing it, and which must therefore meet very high standards of performance and reliability. Note2) A hazard related device or system is one designed or intended for life support or maintenance of safety or for applications in medicine, aerospace, nuclear energy, or other fields, in which its failure to function or perform may reasonably be expected to result in loss of life or in significant injury or damage to person or property. It is the responsibility of the buyer or distributor of AKEMD products, who distributes, disposes of, or otherwise places the product with a third party, to notify such third party in advance of the above content and conditions, and the buyer or distributor agrees to assume any and all responsibility and liability for and hold AKEMD harmless from any and all claims arising from the use of said product in the absence of such notification. KM092501 21 2008/03 A B C VCC-R VCC-R D E VCC-R C24 10u R45 R42 + (open) (open) E E C22 0.1u 1 R7 17 B MCLK C13 51 5 34 ELRCK SDTO BICK C14 15 R13 51 STDI INT0 BICK R14 LRCK 2 1 SW1 DSS102 INT1 37 CM0/CDTO/CAD1 12 R40 CVDD 10 BICK VSS1 SDTI VDD 13 DZF 12 J1 VSS1 C5 C6 R28 C15 0.1u 10u (open) (open) 11 R3 VDD VDD LRCK AOUTL SMUTE AOUTR 10 AOUTL SMUTE R15 R16 R17 R18 C7 (open) (open) (open) (open) 560 OCKS1 CM1/CDTI/SDA R24 47k + MCKO1 U2 OCKS0/CSN/CAD0 41 VCC-R MCKO2 OCKS1/CCLK/SCL 40 47k (short) DVSS DAUX 6 7 8 9 10 10 5 4 3 2 1 9 2.2nF (open) C8 R4 R6 (short) (short) J2 560 BNC-R-PC 1 2ROUT DVSS VIN BVSS DVDD 3 4 5 C10 C12 (open) 2.2nF (open) (short) AGND VCC-R 8 7 (open) VDD VDD C20 0.1u 43 (short) R2 A1-10PA-2.54DSA DSP 9 R9 42 3 4 5 (open) D AOUTR SDTO LRCK BICK MCLK C32 0.1u C33 10u BNC-R-PC 2LOUT C11 11 R10 AK4115 DVDD 1 C9 PORT2 38 39 R23 R5 R1 4 OVDD DZF 13 8 L OCKS0 3 OVSS (open) 51 7 36 H R27 10u TEST1 14 TEST3 D CVDD (open) 6 35 U1 AK4424 MCLK (open) 5.1 TEST2 C4 14 CVDD 5.1 16 R12 DEM + LRCK (open) C3 + 18 C 19 U VOUT 21 TVDD 20 22 TX0 23 TXP1 25 24 TXN1 XTI1 TVSS 27 26 28 XTI2 XTO1 29 OVDD XTO2 30 31 OVSS 32 EMCK R41 1u + 33 VSS2 0.1u 3 DEM 4 R22 C2 15 (short) AGND R11 VSS2 VEE + EBICK R8 C21 0.1u CP 16 1u 2 VCC-R VEE C1 (open) VDD VDD CN + C23 0.1u R39 6 VCC 5.1 44 VCC-R IPS1/IIC XSEL/RX7 5 C C 45 PSEL PDN 4 VCC1 R20 46 XTL0 DIF1/RX6 (short) 1 L4 1 R36 (short) 2 VCC (short) T45-RED 3 C37 0.1u XTL1 48 TEST (open) 1 T2 +12V-->+3.3V uPC3533HF VCC-R R34 +12V IPS0/RX4 1 C36 (open) + 47u IN C41 OUT 2 0.1u +3.3V 3 + C45 0.1u C17 47u 64 AVDD 63 RX3 AVSS 62 RX2 60 61 AVDD 59 RX1 AVSS 58 57 RXN0 RXP0 56 55 P/SN ACKS 54 53 AVDD 52 51 50 49 R VCOM DIF0/RX5 AVSS FILT R35 2 GND 47 C27 0.1u C30 4.7u C25 0.1u + T1 +12V-->+5V NJM78M05FA 1 T45-RED C29 0.1u 1 IN OUT C40 + 470u C39 0.1u AGND2 T_45(BLACK) C42 2 B +5V 3 + C38 0.1u 47u 1 (open) +12V REG 1 VCC-R 2 R30 1 (open) B VCC-R C26 10u GND + R29 2 R31 10k + AGND C28 10u R37 R38 VCC VDD1 (short) L2 1 1 R25 (short) 2 VDD T45-RED VCC (open) C35 470u + (short) C34 0.1u K 1 VCC L1 A 47u A R43 10k U3 C18 0.1u + C19 10u R19 L (open) H SW2 C31 ATE1D-2M3 J3 C16 0.1u R33 0 AK4115-PDN COAX BNC-R-PC 1 3 5 9 11 13 14 7 1 2 1 3 GND OUT TORX141 D1 HSU119 3 0.1u VCC 2 VCC 2 PORT1 R26 1A 2A 3A 4A 5A 6A VCC GND 1Y 2Y 3Y 4Y 5Y 6Y L3 1 1 CVDD1 2 4 6 8 10 12 R44 (short) 2 C44 470u + (open) CVDD T45-RED (short) C43 0.1u A 74HC14 C48 0.1u R32 75 Title Size Document Number AKD4424-SA AK4424 Date: A B C -22- D Sheet E 1 Rev 1 of 1