ASAHI KASEI [AKD4556-B] AKD4556-B AK4556 Evaluation board Rev.1 GENERAL DESCRIPTION The AKD4556-B is an evaluation board for the AK4556, the 24Bit A/D & D/A converter. The AKD4556-B can evaluate A/D converter and D/A converter separately in addition to loopback mode (A/D→D/A). The AKD4556-B also has the digital audio interface and can achieve the interface with digital audio systems via opt-connector. Ordering guide AKD4556-B --- Evaluation board for AK4556 FUNCTION Digital interface - DIT (AK4114): optical or BNC - DIR (AK4114): optical or BNC 10pin header for serial control interface 5V Regulator GND BNC LIN Opt In AK4114 (DIR&DIT) RIN Opt Out AK4556 LOUT BNC 10pin Header DSP ROUT Figure 1. AKD4556-B Block Diagram * Circuit diagram and PCB layout are attached at the end of this manual. <KM082901> 2006/08 -1- ASAHI KASEI [AKD4556-B] Evaluation Board Manual Operation sequence 1) Set up the power supply lines [5V] (red) = +5V (3.3V is supplied to the AK4556 , the AK4114 , and the Digital Logic via the regulator.) [GND] (black) = 0V 2) Set up the evaluation modes, jumper pins and DIP switch. (See the followings.) 3) Power on The AK4556 should be reset once bringing SW1 (PDN) “L” upon power-up. The function of the toggle SW. [SW1] : Resets the AK4556 & AK4114. Keep “H” during normal operation. <KM082901> 2006/08 -2- ASAHI KASEI [AKD4556-B] Evaluation modes In case of the AK4556 evaluation using the AK4114, it is necessary to correspond to the audio interface format. RX and TX use BNC connector at evaluation of Quad Speed with the AK4114. Applicable evaluation modes (1) Evaluation of Loopback mode using the AK4114 <default> (2) Evaluation of DAC using DIR of the AK4114 (3) Evaluation of ADC using DIT of the AK4114 (4) All interface signals including master clock are fed externally. (1) Evaluation of Loopback mode using the AK4114 X’tal oscillator (X1) 24.576MHz is used. (1-1) Slave mode <Default> JP1 : Short JP2 : Short SW3-1 (XTL1) : H SW3-2 (XTL0) : L SW3-7 (CM0) : H For the AK4556’s sampling speed and audio interface format, refer to Table 3 on page 8. For the AK4114’s sampling speed and audio interface format, refer to Table 6 and Table 7 on page 9. Example . Setting of the AK4556 mode 4 (HPF:ON , Audio Format: I2S) SW2 AK4556 SW3 AK4114 Speed CKS3 CKS2 CKS1 CKS0 DIF1 DIF0 OCKS1 (SW2-3) (SW2-4) (SW2-5) (SW2-6) (SW3-3) (SW3-4) (SW3-5) OCKS0 (SW3-6) L L L H H H L L L L L L L L L H H H H L H L L H Normal Double Quad (1-2) Master mode JP1 : Short JP2 : Short SW3-1 (XTL1) : H SW3-2 (XTL0) : L SW3-3 (DIF1) : H SW3-4 (DIF0) : H SW3-7 (CM0) : H For the AK4556’s sampling speed and audio interface format, refer to Table 3 on page 8. For the AK4114’s sampling speed and audio interface format, refer to Table 6 and Table 7 on page 9. Example . Setting of the AK4556 Master mode (HPF:ON , Audio Format: I2S) SW2 AK4556 SW3 AK4114 Speed CKS3 CKS2 CKS1 CKS0 OCKS1 OCKS0 Normal Double Quad (SW2-3) (SW2-4) (SW2-5) (SW2-6) (SW3-5) (SW3-6) H H H H H H L L H H L L H L H L L H <KM082901> 2006/08 -3- ASAHI KASEI [AKD4556-B] (2) Evaluation of DAC using DIR of the AK4114 DIR generates MCLK , BCLK , LRCK , and SDATA from received data via optical (PORT1) or BNC connector (J6). (2-1) Slave mode JP1 : Short JP2 : Short JP3 : OPT or BNC SW3-1 (XTL1) : H SW3-2 (XTL0) : H SW3-7 (CM0) : L For the AK4556’s sampling speed and audio interface format, refer to Table 3 on page 8. For the AK4114’s sampling speed and audio interface format, refer to Table 6 and Table 7 on page 9. Example . Setting of the AK4556 mode 4 (HPF:ON , Audio Format: I2S) SW2 AK4556 SW3 AK4114 Speed CKS3 CKS2 CKS1 CKS0 DIF1 DIF0 OCKS1 OCKS0 (SW2-3) (SW2-4) (SW2-5) (SW2-6) (SW3-3) (SW3-4) (SW3-5) (SW3-6) L L L H H H L L L L L L L L L H H H H L H L L H Nomal Double Quad (2-2) Master mode JP1 : Short JP2 : Short JP3 : OPT or BNC SW3-1 (XTL1) : H SW3-2 (XTL0) : H SW3-3 (DIF1) : H SW3-4 (DIF0) : H SW3-7 (CM0) : L For the AK4556’s sampling speed and audio interface format, refer to Table 3 on page 8. For the AK4114’s sampling speed and audio interface format, refer to Table 6 and Table 7 on page 9. Example . Setting of the AK4556 Master mode (HPF:ON , Audio Format: I2S) SW2 AK4556 SW3 AK4114 Speed CKS3 CKS2 CKS1 CKS0 OCKS1 OCKS0 Normal Double Quad (SW2-3) (SW2-4) (SW2-5) (SW2-6) (SW3-5) (SW3-6) H H H H H H L L H H L L H L H L L H <KM082901> 2006/08 -4- ASAHI KASEI [AKD4556-B] (3) Evaluation of ADC using DIT of the AK4114 Optical (PORT2) or BNC (J7) connector is used. DIT generates audio bi-phase signal. (3-1) Slave mode (3-1-1) When using the AK4114’s PLL Optical (PORT1) or BNC (J6) connector provides access to the bi-phase signal generated by the AK4114. JP1 : Short JP2 : Short JP3,JP4 : OPT or BNC SW3-1 (XTL1) : H SW3-2 (XTL0) : H SW3-7 (CM0) : L (3-1-2) When using X’tal oscillator (X1) 24.576MHz JP1 : Short JP2 : Short JP4 : OPT or BNC SW3-1 (XTL1) : H SW3-2 (XTL0) : L SW3-7 (CM0) : H For the AK4556’s sampling speed and audio interface format, refer to Table 3 on page 8. For the AK4114’s sampling speed and audio interface format, refer to Table 6 and Table 7 on page 9. Example . Setting of the AK4556 Mode 8 (HPF:ON , Audio Format:LJ) SW2 AK4556 SW3 AK4114 Speed CKS3 CKS2 CKS1 CKS0 DIF1 DIF0 OCKS1 Normal Double Quad OCKS0 (SW2-3) (SW2-4) (SW2-5) (SW2-6) (SW3-3) (SW3-4) (SW3-5) (SW3-6) H H H L L L L L L L L L L L L L L L H L H L L H <KM082901> 2006/08 -5- ASAHI KASEI [AKD4556-B] (3-2) Master mode (3-2-1) When using the AK4114’s PLL Optical (PORT1) or BNC (J6) connector provides access to the bi-phase signal generated by the AK4114. JP1 : Short JP2 : Short JP3,JP4 : OPT or BNC SW3-1 (XTL1) : H SW3-2 (XTL0) : H SW3-3 (DIF1) : H SW3-4 (DIF0) : H SW3-7 (CM0) : L (3-2-2) When using X’tal oscillator (X1) 24.576MHz JP1 : Short JP2 : Short JP4 : OPT or BNC SW3-1 (XTL1) : H SW3-2 (XTL0) : L SW3-3 (DIF1) : H SW3-4 (DIF0) : H SW3-7 (CM0) : H For the AK4556’s sampling speed and audio interface format, refer to Table 3 on page 8. For the AK4114’s sampling speed and audio interface format, refer to Table 6 and Table 7 on page 9. Example . Setting of the AK4556 Master Mode (HPF:ON , Audio Format: I2S) SW2 AK4556 SW3 AK4114 Speed CKS3 CKS2 CKS1 CKS0 OCKS1 OCKS0 Normal Double Quad (SW2-3) (SW2-4) (SW2-5) (SW2-6) (SW3-5) (SW3-6) H H H H H H L L H H L L H L H L L H <KM082901> 2006/08 -6- ASAHI KASEI [AKD4556-B] (4) All interface signals including master clock are fed externally. PORT3 is used. (4-1) Slave mode JP1 : Open JP2 : Open SW3-3 (DIF1) : H SW3-4 (DIF0) : H In slave mode , the AK4556’s sampling speed and audio interface format is set by SW2. See Table 1 on page 8 for possible mode setting. (4-2) Master mode JP1 : Open JP2 : Open SW3-3 (DIF1) : H SW3-4 (DIF0) : H In master mode , the AK4556’s sampling speed and audio interface format is set by SW2. See Table 1 on page 8 for possible mode setting. <KM082901> 2006/08 -7- ASAHI KASEI [AKD4556-B] Setting of DIP SW 1. Evaluation mode setting of SW2 (AK4556) No. Name Default 1 DEM1 L 2 DEM0 H 3 CKS3 L 4 CKS2 H 5 CKS1 L 6 CKS0 L Table 1 . SW2 AK4556 Mode Setting DEM1 DEM0 Mode L L 44.1kHz L H OFF H L 48kHz H H 32kHz Table 2 . De-emphasis filter control Mode CKS3 CKS2 CKS1 CKS0 HPF M/S 0 L L L L ON Slave 1 L L L H ON Slave 2 L L H L OFF Slave 3 L L H H OFF Slave 4 L H L L ON Slave 5 L H L H ON Slave 6 L H H L OFF Slave 7 L H H H OFF Slave 8 H L L L ON Slave 9 H L L H ON Slave 10 H L H L OFF Slave 11 H L H H OFF Slave MCLK 128/192fs (Quad Speed) 256/384fs (Double Speed) 512/768fs (Normal Speed) 256/384/512/768fs (Normal Speed) 128/192fs (Quad Speed) 256/384fs (Double Speed) 512/768fs (Normal Speed) 256/384/512/768fs (Normal Speed) 128/192fs (Quad Speed) 256/384fs (Double Speed) 512/768fs (Normal Speed) 256/384/512/768fs (Normal Speed) 128/192fs (Quad Speed) 256/384fs (Double Speed) 512/768fs (Normal Speed) 256/384/512/768fs (Normal Speed) 128/192fs (Quad Speed) 256/384fs (Double Speed) 512/768fs (Normal Speed) 256/384/512/768fs (Normal Speed) 128/192fs (Quad Speed) 256/384fs (Double Speed) 512/768fs (Normal Speed) 256/384/512/768fs (Normal Speed) 256fs (Double Speed) 512fs (Normal Speed) 128fs (Quad Speed) 256fs (Normal Speed) Audio I/F LJ/RJ LJ/RJ LJ/RJ LJ/RJ I2S I2S I2S I2S LJ LJ LJ LJ 12 H H L L ON Master I2S 13 H H L H ON Master I2S 14 H H H L ON Master I2S 15 H H H H ON Master I2S Table 3 . AK4556 Mode Settting In case of the AK4556 evaluation using the AK4114 , LJ/RJ (Mode 0 ~ Mode 3) in Audio I/F does not support. <KM082901> 2006/08 -8- ASAHI KASEI [AKD4556-B] 2. Evaluation mode setting of SW3 (AK4114) No. Name Default 1 XTL1 H 2 XTL0 L 3 DIF1 L 4 DIF0 H 5 OCKS1 L 6 OCKS0 L 7 CM0 H Table 4 . SW3 AK4114 Mode Setting XTL1 XTL0 X’tal Frequency L L 11.2896 MHz L H 12.288 MHz H L 24.576 MHz H H OFF Table 5 . Reference X’tal Frequency DIF1 DIF0 DAUX L L 24bit LJ L H 24bit I2S H H 24bit I2S Table 6. Audio Data Format SDTO 24bit LJ 24bit I2S 24bit I2S LRCK,BCLK O O I OCKS1 OCKS0 MCKO1 L L 256fs H L 512fs H H 128fs Table 7. Master Clock Output Frequency X’tal 256fs 512fs 128fs fs Max 96kHz 48kHz 192kHz CM0 PLL Clock Souce L ON PLL H OFF X’tal Table 8 . Clock Operation Mode SDTO RX DAUX Speed Double Normal Quad Jumper pins set up [JP1] : MCLK Short : MCLK is supplied from the AK4114. Open : MCLK is supplied from PORT3. [JP2] : SDTI Short Open : SDTI is supplied from the AK4114. : SDTI is supplied from PORT3. [JP3] : RX (DIR) OPT : Optical connector (PORT1) is used. BNC : BNC connector (J5) is used. [JP4] : TX (DIT) OPT : Optical connector (PORT2) is used. BNC : BNC connector (J6) is used. <KM082901> 2006/08 -9- ASAHI KASEI [AKD4556-B] Analog input circuit J1 C7 RIN 10u + RIN J2 C8 LIN 10u + LIN Figure 2. Analog Input Circuit Analog output circuit J3 R8 + 220 ROUT ROUT C9 R9 22u 10k J4 R11 + 220 LOUT LOUT C10 R10 22u 10k Figure 3. Analog Output Circuit <KM082901> 2006/08 - 10 - ASAHI KASEI [AKD4556-B] MEASUREMENT RESULTS [Measurement condition] ● Measurement unit: Audio Precision, System two Cascade ● Slave Mode ● BCLK: 64fs ● Bit: 24bit ● Measurement Frequency: Nomal Speed : 20Hz ∼ 20kHz , Double & Quad Speed : 20Hz ∼ 40kHz ● Power Supply: VA=VD=3.3 V ● Temperature: Room ● Input Frequency: 1kHz ● Sampling Frequency: 48kHz , 96kHz , 192kHz [Measurement Results] ADC (LIN/RIN) characteristics Sampling Parameter Frequency S / (N+D) DR 48kHz DR S/N Condition Filter L ch R ch Units -1dB Input -60dB Input -60dB Input No Signal 20kHzLPF 20kHzLPF A-weighted A-weighted 92.2 102.4 104.8 104.9 92.1 102.4 104.8 104.9 dB dB dB dB 96kHz S / (N+D) DR DR S/N -1dB Input -60dB Input -60dB Input No Signal 40kHzLPF 40kHzLPF A-weighted A-weighted 90.8 98.7 104.3 104.4 90.8 98.7 104.3 104.4 dB dB dB dB 192kHz S / (N+D) DR DR S/N -1dB Input -60dB Input -60dB Input No Signal 40kHzLPF 40kHz LPF A-weighted A-weighted 90.8 98.6 103.8 103.9 90.8 98.6 103.8 103.9 dB dB dB dB DAC (LOUT/ROUT) characteristics Sampling Parameter Condition Frequency S / (N+D) 0dB Input DR -60dB Input 48kHz DR -60dB Input S/N No Signal Filter L [dB] R [dB] Units 20kHzLPF 20kHzLPF A-weighted A-weighted 90.8 105.0 107.5 107.8 90.9 105.0 107.5 107.8 dB dB dB dB 96kHz S / (N+D) DR DR S/N 0dB Input -60dB Input -60dB Input No Signal 40kHzLPF 40kHzLPF A-weighted A-weighted 89.2 102.7 107.7 107.7 89.1 102.7 107.7 107.7 dB dB dB dB 192kHz S / (N+D) DR DR S/N 0dB Input -60dB Input -60dB Input No Signal 40kHzLPF 40kHz LPF A-weighted A-weighted 89.2 102.7 107.7 107.7 89.2 102.7 107.7 107.7 dB dB dB dB <KM082901> 2006/08 - 11 - ASAHI KASEI [AKD4556-B] [Plots] ADC fs=48kHz AKM AK4556 ADC FFT fs=48kHz , -1dB Input +0 -10 -20 -30 -40 -50 -60 -70 d B F S -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k 5k 10k 20k 5k 10k 20k Hz Figure 4. FFT (fin=1kHz , Input Level=-1dBFS) AKM AK4556 ADC FFT fs=48kHz , -60dB Input +0 -10 -20 -30 -40 -50 -60 -70 d B F S -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k Hz Figure 5. FFT (fin=1kHz , Input Level=-60dBFS) <KM082901> 2006/08 - 12 - ASAHI KASEI [AKD4556-B] AKM AK4556 ADC FFT fs=48kHz , No Signal +0 -10 -20 -30 -40 -50 -60 -70 d B F S -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k 5k 10k 20k Hz Figure 6. FFT (fin=1kHz , No Signal) AKM AK4556 ADC THD + N vs Input Level fs=48kHz -60 -65 -70 -75 -80 -85 d B F S -90 -95 -100 -105 -110 -115 -120 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 dBr Figure 7. THD+N vs Input Level (fin=1kHz) <KM082901> 2006/08 - 13 - ASAHI KASEI [AKD4556-B] AKM AK4556 ADC THD + N vs Input Frequency fs=48kHz -60 -65 -70 -75 -80 -85 d B F S -90 -95 -100 -105 -110 -115 -120 20 50 100 200 500 1k 2k 5k 10k 20k Hz Figure 8. THD+N vs Input Frequency (Input Level =-1dBFS) AKM AK4556 ADC Linearity fs=48kHz +0 -10 -20 -30 -40 -50 d B F S -60 -70 -80 -90 -100 -110 -120 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dBr Figure 9. Linearity (fin=1kHz) <KM082901> 2006/08 - 14 - ASAHI KASEI [AKD4556-B] AKM AK4556 ADC Freqency Response fs=48kHz +0 -0.2 -0.4 -0.6 -0.8 d B F S -1 -1.2 -1.4 -1.6 -1.8 -2 20 50 100 200 500 1k 2k 5k 10k 20k 2k 5k 10k 20k Hz Figure 10. Frequency Response AKM AK4556 ADC Crosstalk fs=48kHz -80 -85 -90 -95 -100 -105 -110 d B -115 -120 -125 -130 -135 -140 -145 -150 20 50 100 200 500 1k Hz Figure 11. Crosstalk <KM082901> 2006/08 - 15 - ASAHI KASEI [AKD4556-B] fs=96kHz AKM AK4556 ADC FFT fs=96kHz , -1dB Input +0 -10 -20 -30 -40 -50 -60 -70 d B F S -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k 5k 10k 20k 40k 5k 10k 20k 40k Hz Figure 12. FFT (fin=1kHz , Input Level=-1dBFS) AKM AK4556 ADC FFT fs=96kHz , -60dB Input +0 -10 -20 -30 -40 -50 -60 -70 d B F S -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k Hz Figure 13. FFT (fin=1kHz , Input Level=-60dBFS) <KM082901> 2006/08 - 16 - ASAHI KASEI [AKD4556-B] AKM AK4556 ADC FFT fs=96kHz , No Signal +0 -10 -20 -30 -40 -50 -60 -70 d B F S -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k 5k 10k 20k 40k Hz Figure 14. FFT (fin=1kHz , No Signal) AKM AK4556 ADC THD + N vs Input Level fs=96kHz -60 -65 -70 -75 -80 -85 d B F S -90 -95 -100 -105 -110 -115 -120 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 dBr Figure 15. THD+N vs Input Level (fin=1kHz) <KM082901> 2006/08 - 17 - ASAHI KASEI [AKD4556-B] AKM AK4556 ADC THD + N vs Input Frequency fs=96kHz -60 -65 -70 -75 -80 -85 d B F S -90 -95 -100 -105 -110 -115 -120 20 50 100 200 500 1k 2k 5k 10k 20k 40k Hz Figure 16. THD+N vs Input Frequency (Input Level =-1dBFS) AKM AK4556 ADC Linearity fs=96kHz +0 -10 -20 -30 -40 -50 d B F S -60 -70 -80 -90 -100 -110 -120 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dBr Figure 17. Linearity (fin=1kHz) <KM082901> 2006/08 - 18 - ASAHI KASEI [AKD4556-B] AKM AK4556 ADC Freqency Response fs=96k +0 -0.2 -0.4 -0.6 -0.8 d B F S -1 -1.2 -1.4 -1.6 -1.8 -2 20 50 100 200 500 1k 2k 5k 10k 20k 40k 5k 10k 20k 40k Hz Figure 18. Frequency Response AKM AK4556 ADC Crosstalk fs=96kHz -80 -85 -90 -95 -100 -105 -110 d B -115 -120 -125 -130 -135 -140 -145 -150 20 50 100 200 500 1k 2k Hz Figure 19. Crosstalk <KM082901> 2006/08 - 19 - ASAHI KASEI [AKD4556-B] fs=192kHz AKM AK4556 ADC FFT fs=192kHz , -1dB Input +0 -10 -20 -30 -40 -50 -60 -70 d B F S -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k 5k 10k 20k 50k 80k 10k 20k 50k 80k Hz Figure 20. FFT (fin=1kHz , Input Level=-1dBFS) AKM AK4556 ADC FFT fs=192kHz , -60dB Input +0 -10 -20 -30 -40 -50 -60 -70 d B F S -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k 5k Hz Figure 21. FFT (fin=1kHz , Input Level=-60dBFS) <KM082901> 2006/08 - 20 - ASAHI KASEI [AKD4556-B] AKM AK4556 ADC FFT fs=192kHz , No Signal +0 -10 -20 -30 -40 -50 -60 -70 d B F S -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k 5k 10k 20k 50k 80k Hz Figure 22. FFT (fin=1kHz , No Signal) AKM AK4556 ADC THD + N vs Input Level fs=192kHz -60 -65 -70 -75 -80 -85 d B F S -90 -95 -100 -105 -110 -115 -120 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 dBr Figure 23. THD+N vs Input Level (fin=1kHz) <KM082901> 2006/08 - 21 - ASAHI KASEI [AKD4556-B] AKM AK4556 ADC THD + N vs Input Frequency fs=192kHz -60 -65 -70 -75 -80 -85 d B F S -90 -95 -100 -105 -110 -115 -120 20 50 100 200 500 1k 2k 5k 10k 20k -30 -20 50k 80k Hz Figure 24. THD+N vs Input Frequency (Input Level =-1dBFS) AKM AK4556 ADC Linearity fs=192kHz +0 -10 -20 -30 -40 -50 d B F S -60 -70 -80 -90 -100 -110 -120 -120 -110 -100 -90 -80 -70 -60 -50 -40 -10 +0 dBr Figure 25. Linearity (fin=1kHz) <KM082901> 2006/08 - 22 - ASAHI KASEI [AKD4556-B] AKM AK4556 ADC Freqency Response fs=192k +0 -0.2 -0.4 -0.6 -0.8 d B F S -1 -1.2 -1.4 -1.6 -1.8 -2 20 50 100 200 500 1k 2k 5k 10k 20k 50k 80k 5k 10k 20k 50k 80k Hz Figure 26. Frequency Response AKM AK4556 ADC Crosstalk fs=192kHz -80 -85 -90 -95 -100 -105 -110 d B -115 -120 -125 -130 -135 -140 -145 -150 20 50 100 200 500 1k 2k Hz Figure 27. Crosstalk <KM082901> 2006/08 - 23 - ASAHI KASEI [AKD4556-B] DAC fs=48kHz AKM AK4556 DAC FFT fs=48kHz 0dB Input +0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k 5k 10k 20k 5k 10k 20k Hz Figure 28. FFT (fin=1kHz , Input Level=0dBFS) AKM AK4556 DAC FFT fs=48kHz , Notch Filter +0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k Hz Figure 29. FFT (fin=1kHz , Input Level=0dBFS , Notch Filter) <KM082901> 2006/08 - 24 - ASAHI KASEI [AKD4556-B] AKM AK4556 DAC FFT fs=48kHz , -60dB Input +0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k 5k 10k 20k 5k 10k 20k Hz Figure 30. FFT (fin=1kHz , Input Level=-60dBFS) AKM AK4556 DAC FFT fs=48kHz , No Signal +0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k Hz Figure 31. FFT (fin=1kHz , No Signal) <KM082901> 2006/08 - 25 - ASAHI KASEI [AKD4556-B] AKM AK4556 DAC THD + N vs Input Level fs=48kHz -60 -65 -70 -75 -80 d B r A -85 -90 -95 -100 -105 -110 -115 -120 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dBFS Figure 32. THD+N vs Input Level (fin=1kHz) AKM AK4556 DAC THD + N vs Input Frequency fs=48kHz -60 -65 -70 -75 -80 d B r A -85 -90 -95 -100 -105 -110 -115 -120 20 50 100 200 500 1k 2k 5k 10k 20k Hz Figure 33. THD+N vs Input Frequency (Input Level =0dBFS) <KM082901> 2006/08 - 26 - ASAHI KASEI [AKD4556-B] AKM AK4556 DAC Linearity fs=48kHz +0 -10 -20 -30 -40 -50 d B r -60 A -70 -80 -90 -100 -110 -120 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dBFS Figure 34. Linearity (fin=1kHz) AKM AK4556 DAC Frequency Response fs=48kHz +2 +1.75 +1.5 +1.25 +1 +0.75 +0.5 d B r +0.25 A -0.25 +0 -0.5 -0.75 -1 -1.25 -1.5 -1.75 -2 20 50 100 200 500 1k 2k 5k 10k 20k Hz Figure 35. Frequency Response <KM082901> 2006/08 - 27 - ASAHI KASEI [AKD4556-B] AKM AK4556 DAC Crosstalk fs=48kHz -80 -85 -90 -95 -100 -105 -110 d B -115 -120 -125 -130 -135 -140 -145 -150 20 50 100 200 500 1k 2k 5k 10k 20k Hz Figure 36. Crosstalk <KM082901> 2006/08 - 28 - ASAHI KASEI [AKD4556-B] fs=96kHz AKM AK4556 DAC FFT fs=96kHz , 0dB Input +0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k 5k 10k 20k 40k 5k 10k 20k 40k Hz Figure 37. FFT (fin=1kHz , Input Level=0dBFS) AKM AK4556 DAC FFT fs=96kHz , Notch Filter +0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k Hz Figure 38. FFT (fin=1kHz , Input Level=0dBFS , Notch Filter) <KM082901> 2006/08 - 29 - ASAHI KASEI [AKD4556-B] AKM AK4556 DAC FFT fs=96kHz , -60dB Input +0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k 5k 10k 20k 40k 5k 10k 20k 40k Hz Figure 39. FFT (fin=1kHz , Input Level=-60dBFS) AKM AK4556 DAC FFT fs=96kHz , No Signal +0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k Hz Figure 40. FFT (fin=1kHz , No Signal) <KM082901> 2006/08 - 30 - ASAHI KASEI [AKD4556-B] AKM AK4556 DAC THD + N vs Input Level fs=96kHz -60 -65 -70 -75 -80 d B r A -85 -90 -95 -100 -105 -110 -115 -120 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dBFS Figure 41. THD+N vs Input Level (fin=1kHz) AKM AK4556 DAC THD + N vs Input Frequency fs=96kHz -60 -65 -70 -75 -80 d B r A -85 -90 -95 -100 -105 -110 -115 -120 20 50 100 200 500 1k 2k 5k 10k 20k 40k Hz Figure 42. THD+N vs Input Frequency (Input Level =-1dBFS) <KM082901> 2006/08 - 31 - ASAHI KASEI [AKD4556-B] AKM AK4556 DAC Linearity fs=96kHz +0 -10 -20 -30 -40 -50 d B r -60 A -70 -80 -90 -100 -110 -120 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dBFS Figure 43. Linearity (fin=1kHz) AKM AK4556 DAC Frequency Response fs=96kHz +2 +1.75 +1.5 +1.25 +1 +0.75 +0.5 d B r +0.25 A -0.25 +0 -0.5 -0.75 -1 -1.25 -1.5 -1.75 -2 20 50 100 200 500 1k 2k 5k 10k 20k 40k Hz Figure 44. Frequency Response <KM082901> 2006/08 - 32 - ASAHI KASEI [AKD4556-B] AKM AK4556 DAC Crosstalk fs=96kHz -80 -85 -90 -95 -100 -105 -110 d B -115 -120 -125 -130 -135 -140 -145 -150 20 50 100 200 500 1k 2k 5k 10k 20k 40k Hz Figure 45. Crosstalk <KM082901> 2006/08 - 33 - ASAHI KASEI [AKD4556-B] fs=192kHz AKM AK4556 DAC FFT fs=192kHz , 0dB Input +0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k 5k 10k 20k 50k 80k 10k 20k 50k 80k Hz Figure 46. FFT (fin=1kHz , Input Level=0dBFS) AKM AK4556 DAC FFT fs=192kHz , Notch Filter +0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k 5k Hz Figure 47. FFT (fin=1kHz , Input Level=0dBFS , Notch Filter) <KM082901> 2006/08 - 34 - ASAHI KASEI [AKD4556-B] AKM AK4556 DAC FFT fs=192kHz , -60dB Input +0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k 5k 10k 20k 50k 80k 10k 20k 50k 80k Hz Figure 48. FFT (fin=1kHz , Input Level=-60dBFS) AKM AK4556 DAC FFT fs=192kHz , No Signal +0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k 2k 5k Hz Figure 49. FFT (fin=1kHz , No Signal) <KM082901> 2006/08 - 35 - ASAHI KASEI [AKD4556-B] AKM AK4556 DAC THD + N vs Input Level fs=192kHz -60 -65 -70 -75 -80 d B r A -85 -90 -95 -100 -105 -110 -115 -120 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dBFS Figure 50. THD+N vs Input Level (fin=1kHz) AKM AK4556 DAC THD + N vs Input Frequency fs=192kHz -60 -65 -70 -75 -80 d B r A -85 -90 -95 -100 -105 -110 -115 -120 20 50 100 200 500 1k 2k 5k 10k 20k 40k Hz Figure 51. THD+N vs Input Frequency (Input Level =0dBFS) <KM082901> 2006/08 - 36 - ASAHI KASEI [AKD4556-B] AKM AK4556 DAC Linearity fs=192kHz +0 -10 -20 -30 -40 -50 d B r -60 A -70 -80 -90 -100 -110 -120 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 10k 20k -10 +0 dBFS Figure 52. Linearity (fin=1kHz) AKM AK4556 DAC Frequency Response fs=192kHz +2 +1.75 +1.5 +1.25 +1 +0.75 +0.5 d B r +0.25 A -0.25 +0 -0.5 -0.75 -1 -1.25 -1.5 -1.75 -2 20 50 100 200 500 1k 2k 5k 50k 80k Hz Figure 53. Frequency Response <KM082901> 2006/08 - 37 - ASAHI KASEI [AKD4556-B] AKM AK4556 DAC Crosstalk fs=192kHz -80 -85 -90 -95 -100 -105 -110 d B -115 -120 -125 -130 -135 -140 -145 -150 20 50 100 200 500 1k 2k 5k 10k 20k 40k Hz Figure 54. Crosstalk <KM082901> 2006/08 - 38 - ASAHI KASEI [AKD4556-B] Revision History Date (YY/MM/DD) 06/05/18 Manual Revision KM082900 Board Revision 0 06/08/25 KM082901 1 Reason First Edition Change device revision Contents • AK4556 Rev.A → Rev.B • Table Data & Plot Data were updated. 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. <KM082901> 2006/08 - 39 - A B D E 3 C17 + 47u GND LT1117-3.3 T1 VCC E C IN OUT 2 VA C16 0.1u 1 C14 0.1u C15 + 47u DGND E AGND LT1117-3.3 T2 GND for 74HC14 IN OUT 2 +3.3V 1 3 C13 0.1u C11 0.1u + C12 47u C18 0.1u AVDD D D C7 10u + J1 RIN + C9 22u U1 1 RIN ROUT 20 2 LIN LOUT 19 VCOM 18 PDN 17 + C C1 0.1u + C4 0.1u + C3 10u C6 0.1u VA C5 10u R12 5.1 3 VSS 4 VA 5 6 DEM0 7 DEM1 R4 B VD BCLK DEM0 MCLK DEM1 LRCK C2 2.2u R11 220 J4 LOUT C R10 10k PDN R1 51 R2 51 R3 51 R5 51 16 BCLK 15 MCLK 14 51 C10 22u J3 ROUT R9 10k + C8 10u + J2 LIN R8 220 LRCK SDTO 8 SDTO SDTI 13 SDTI CKS0 9 CKS0 CKS3 12 CKS3 CKS1 10 CKS1 CKS2 11 CKS2 B AK4556 A A Title Size A3 Date: A B C D AKD4556-B Document Number Rev AK4556 Friday, August 25, 2006 Sheet E 1 1 of 2 5 4 3 2 1 MCLK BCLK D L1 (short) PORT1 VCC 3 GND OUT 2 1 1 C20 C24 + 10u +3.3V OPT C19 0.1u JP3 RX JP1 MCLK R14 18k C22 + R15 75 SDTO C25 10u BNC 0.1u C23 0.47u MCLK BICK LRCK SDTI VCC JP2 SDTI R24 220k 1 2 3 4 5 6 7 8 9 10 11 12 +3.3V C26 5p DIF0/RX5 XTI 2 DIF1/RX6 X1 C27 1 XTO 24.576MHz XTL0 XTL1 PORT2 3 2 GND 1 +3.3V JP4 T4 DA02 C29 10u + OPT C30 0.1u R21 TX R23 XTI R20 +3.3V CM0 PDN XTO C31 0.1u C32 10u AK4556 Mode Setting AK4114 Mode Setting 14 U3C 7 74HC14 14 +3.3V U3D 5 +3.3V +3.3V 7 14 4 74HC14 U3E 7 3 U3B 7 6 5 4 3 2 1 74HC14 U3F PDN 74HC14 11 A 14 13 12 11 10 9 8 +3.3V SW2 1 2 3 4 5 6 6 5 4 3 2 1 DEM1 DEM0 CKS3 CKS2 CKS1 CKS0 47k A 7 12 Title Size A3 Date: 5 4 B 12 11 10 9 8 7 RP1 XTL1 XTL0 DIF1/RX6 DIF0/RX5 OCKS1 OCKS0 CM0 47K 10 13 +3.3V SW3 1 2 3 4 5 6 7 DEM1 DEM0 CKS3 CKS2 CKS1 CKS0 RP2 8 14 SW1 PDN 2 14 74HC14 1 C33 0.1u 7 U3A XTL1 XTL0 DIF1 DIF0 OCKS1 OCKS0 CM0 6 9 14 1S1588 R16 10k 7 D1 L C 10k 5.1 240 R22 150 1:1 H SDTO DSP BNC TX B AK4114 OCKS0 OCKS1 R27 220k +3.3V C28 0.1u TOTX141 J6 BNC TX U2 36 35 34 33 32 31 30 29 28 27 26 25 R26 220k 10 9 8 7 6 13 14 15 16 17 18 19 20 21 22 23 24 IN VCC INT0 OCKS0/CSN OCKS1/CCLK CM1/CDTI CM0/CDTO PDN XTI XTO DAUX MCKO2 BICK SDTO R25 220k PORT3 1 2 3 4 5 TVDD DVSS TX0 TX1 BOUT COUT UOUT VOUT DVDD DVSS MCKO1 LRCK 5p IPS0/RX4 AVSS DIF0/RX5 TEST2 DIF1/RX6 AVSS DIF2/RX7 IPS1/IIC P/SN XTL0 XTL1 VIN + C RX3 AVSS RX2 TEST1 RX1 AVSS RX0 AVSS VCOM R AVDD INT1 48 47 46 45 44 43 42 41 40 39 38 37 RX SDTI AVDD R13 470 J5 BNC RX D LRCK + 0.1u TORX141 2 3 2 Document Number AKD4556-B Friday, August 25, 2006 Sheet 1 Rev 1 DIT/DIR 2 of 2