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| ASAHI KASEI [AKD5381-B] AKD5381-B AK5381 Evaluation Board Rev.1 GENERAL DESCRIPTION AKD5381-B is an evaluation board for the digital audio 24bit 96kHz A/D converter, AK5381. AKD5381-B has analog input circuits and a digital interface transmitter,and can achieve the interface with digital audio systems via opt-connector. Ordering guide AKD5381-B --AK5381 Evaluation Board FUNCTION * DIT (AK4114) with optical output VA,VD AGND,DGND LIN RIN AK5381 AK4114 (DIT) Opt Out DSP Data 10pin Header Figure 1. AKD5381-B Block Diagram * Circuit diagram and PCB layout are attached at the end of this manual. 2006/04 ASAHI KASEI [AKD5381-B] 1. Evaluation Board Manual Operation sequence 1) Set up the power supply lines. [VA] (red) = 2.7 5.5V or +15V [VD] (orange) = 2.7 5.5V [VCC] (red) = 3.3V [AGND] (black) = 0V [DGND] (black) = 0V : for VA of AK5381 (typ. 5.0V) : for VD of AK5381, 74HC14 (typ. 5.0V) : for AK4114 : for analog ground : for logic ground Each supply line should be distributed from the power supply unit. 2) Set up the evaluation mode, jumper pins and DIP switches. (See the followings.) 3) Power on. The AK5381 and AK4114 should be reset once bringing SW2 = "L" upon power-up. Evaluation mode (1) Slave Mode (1-1) A/D evaluation using DIT function of AK4114 PORT2 (DIT) is used. DIT generates audio bi-phase signal from received data and which is output through optical connector (TOTX141). It is possible to connect AKM's D/A converter evaluation boards on the digital-amplifier, which equips DIR input. Nothing should be connected to PORT1 (DSP). JP5 MCLK (1-2) All interface signals including master clock are fed externally. PORT1 (DSP) is used. All interface signals (MCLK, SCLK, LRCK) are provided to the AK5381 through PORT1. JP5 (MCLK) should be open. The DIF1 of SW1 (MODE) should be set to "H". JP5 MCLK 2006/04 ASAHI KASEI [AKD5381-B] (2) Master Mode (2-1) A/D evaluation using DIT function of AK4114 PORT2 (DIT) is used. DIT generates audio bi-phase signal from received data and which is output through optical connector (TOTX141). It is possible to connect AKM's D/A converter evaluation boards on the digital-amplifier, which equips DIR input. Nothing should be connected to PORT1 (DSP). The DIF1 of SW1 (MODE) should be set to "H". JP5 MCLK (2-2) Master clock is fed externally. PORT1 (DSP) is used. MCLK is provided to the AK5381 through PORT1. JP5 (MCLK) should be open. The DIF1 of SW1 (MODE) should be set to "H". JP5 MCLK Other jumper pins set up 1. JP1 (GND) : Analog ground and Digital ground OPEN : Separated. SHORT : Common. (The connector "DGND" can be open.) 3. JP3 (VA) : Select VA for AK5381 VA : Supply from VA connector 2006/04 ASAHI KASEI [AKD5381-B] DIP Switch set up [SW1] (MODE1): Setting the evaluation mode for AK5381 and AK4114 ON is "H", OFF is "L". CKS1 should be set by JP2. No. 1 2 3 4 Name CKS0 CKS2 DIF DIF1 OFF ("L") See Table 2 MSB justified AK4114 Master mode Table 1. Mode Setting HPF ON OFF ON ON ON I2S Compatible AK4114 Slave mode ON ("H") CKS2 L L L L H H H H CKS1 L L H H L L H H CKS0 L H L H L H L H Input Level CMOS CMOS CMOS CMOS TTL Master/Slave MCLK Slave 256/384/512/768fs Slave 256/384/512/768fs Master 256fs ( 96kHz) Master 512fs ( 48kHz) Slave 256/384/512/768fs Reserved CMOS ON Master 384fs ( 96kHz) CMOS ON Master 768fs ( 48kHz) Table 2. Mode Setting of AK5381 SCLK 48fs or 32fs 48fs or 32fs 64fs 64fs 48fs or 32fs 64fs 64fs Note: AK4114 does not support MCLK=384fs/512fs/768fs. PORT1 (DSP) should be used when MCLK=384fs/512fs/768fs. The function of the toggle SW Upper-side is "H" and lower-side is "L". [SW2] (PDN): Resets the AK5381 and AK4114. Keep "H" during normal operation. 2006/04 ASAHI KASEI [AKD5381-B] Analog Input Circuits Analog signal is input via J1(RIN) and J2(LIN) of RCA connectors. J1 RIN C1 10u AINR + J2 LIN C2 10u AINL + Figure 2. Analog Input circuits * AKM assumes no responsibility for the trouble when using the circuit examples. 2006/04 ASAHI KASEI [AKD5381-B] MEASUREMENT RESULTS [Measurement condition] * Measurement unit : Audio Precision, System Two Cascade * MCLK : 256fs * SCLK : 64fs : 48kHz, 96kHz * fs : 24bit * Bit : VA = VD = 5.0V (Using regulator) * Power Supply * Interface : DIT * Temperature : Room Parameter ADC Analog Input Characteristics: fs=48kHz S/(N+D) (-1dB Input) fs=96kHz fs=48kHz, A-weighted D-Range (-60dB Input) fs=96kHz S/N fs=48kHz, A-weighted fs=96kHz Interchannel Isolation Result (Lch / Rch) 89.0 / 88.4 86.9 / 86.2 102.7 / 102.4 99.2 / 99.2 102.8 / 102.8 99.4 / 99.4 123.6 / 123.8 Unit dB dB dB dB dB dB dB 2006/04 ASAHI KASEI [AKD5381-B] [ADC Plot : fs=48kHz] AKM -70 AK5381 THD+N vs. Input Level VA=VD=5.0V, fs=48kHz, fin=1kHz -75 -80 -85 -90 d B F S -95 -100 -105 -110 -115 -120 -120 -110 -100 -90 -80 -70 -60 dBr -50 -40 -30 -20 -10 Figure 1. THD+N vs. Input Level AKM -70 AK5381 THD+N vs. Input Frequency VA=VD=5.0V, fs=48kHz, Input=-1dBr -75 -80 -85 -90 d B F S -95 -100 -105 -110 -115 -120 20 50 100 200 500 Hz 1k 2k 5k 10k 20k Figure 2. THD+N vs. Input Frequency 2006/04 ASAHI KASEI [AKD5381-B] AKM +0 -10 -20 -30 -40 -50 d B F S -60 -70 -80 -90 -100 -110 -120 -120 AK5381 Linearity VA=VD=5.0V, fs=48kHz, fin=1kHz -110 -100 -90 -80 -70 -60 dBr -50 -40 -30 -20 -10 +0 Figure 3. Linearity AKM -0.5 AK5381 Frequency Response VA=VD=5.0V, fs=48kHz, Input=-1dBr -0.6 -0.7 -0.8 -0.9 d B F S -1 -1.1 -1.2 -1.3 -1.4 -1.5 20 50 100 200 500 Hz 1k 2k 5k 10k 20k Figure 4. Frequency Response 2006/04 ASAHI KASEI [AKD5381-B] AKM -70 -75 -80 -85 -90 -95 -100 -105 d B -110 -115 -120 -125 -130 -135 -140 -145 -150 20 50 100 AK5381 Crosstalk VA=VD=5.0V, fs=48kHz, Input=-1dBr 200 500 Hz 1k 2k 5k 10k 20k Figure 5. Crosstalk AKM +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 AK5381 FFT Plot VA=VD=5.0V, fs=48kHz, Input=-1dBr, fin=1kHz 200 500 Hz 1k 2k 5k 10k 20k Figure 6. FFT Plot 2006/04 ASAHI KASEI [AKD5381-B] AKM +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 AK5381 FFT Plot VA=VD=5.0V, fs=48kHz, Input=-60dBr, fin=1kHz 200 500 Hz 1k 2k 5k 10k 20k Figure 7. FFT Plot AKM +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 AK5381 FFT Plot VA=VD=5.0V, fs=48kHz, fin=None 200 500 Hz 1k 2k 5k 10k 20k Figure 8. FFT Plot 2006/04 ASAHI KASEI [AKD5381-B] [ADC Plot : fs=96kHz] AKM -70 -72.5 -75 -77.5 -80 -82.5 -85 -87.5 -90 d B F S -92.5 -95 -97.5 -100 -102.5 -105 -107.5 -110 -112.5 -115 -117.5 -120 -120 -110 -100 -90 AK5381 THD+N vs. Input Level VA=VD=5.0V, fs=96kHz, fin=1kHz -80 -70 -60 dBr -50 -40 -30 -20 -10 Figure 9. THD+N vs. Input Level AKM -70 -72.5 -75 -77.5 -80 -82.5 -85 -87.5 -90 d B F S -92.5 -95 -97.5 -100 -102.5 -105 -107.5 -110 -112.5 -115 -117.5 -120 20 50 100 200 AK5381 THD+N vs. Input Frequency VA=VD=5.0V, fs=96kHz, Input=-1dBr 500 1k Hz 2k 5k 10k 20k 40k Figure 10. THD+N vs. Input Frequency 2006/04 ASAHI KASEI [AKD5381-B] AKM +0 -10 -20 -30 -40 -50 d B F S -60 -70 -80 -90 -100 -110 -120 -120 AK5381 Linearity VA=VD=5.0V, fs=96kHz, fin=1kHz -110 -100 -90 -80 -70 -60 dBr -50 -40 -30 -20 -10 +0 Figure 11. Linearity AKM -0.5 -0.55 -0.6 -0.65 -0.7 -0.75 -0.8 -0.85 -0.9 d B F S -0.95 -1 -1.05 -1.1 -1.15 -1.2 -1.25 -1.3 -1.35 -1.4 -1.45 -1.5 20 50 100 200 AK5381 Frequency Response VA=VD=5.0V, fs=96kHz, Input=-1dBr 500 1k Hz 2k 5k 10k 20k 40k Figure 12. Frequency Response 2006/04 ASAHI KASEI [AKD5381-B] AKM -70 -75 -80 -85 -90 -95 -100 -105 d B -110 -115 -120 -125 -130 -135 -140 -145 -150 20 AK5381 Crosstalk VA=VD=5.0V, fs=96kHz, Input=-1dBr 50 100 200 500 1k Hz 2k 5k 10k 20k 40k Figure 13. Crosstalk AKM +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 AK5381 FFT Plot VA=VD=5.0V, fs=96kHz, Input=-1dBr, fin=1kHz 200 500 1k Hz 2k 5k 10k 20k 40k Figure 14. FFT Plot 2006/04 ASAHI KASEI [AKD5381-B] AKM +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 AK5381 FFT Plot VA=VD=5.0V, fs=96kHz, Input=-60dBr, fin=1kHz 200 500 1k Hz 2k 5k 10k 20k 40k Figure 15. FFT Plot AKM +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 AK5381 FFT Plot VA=VD=5.0V, fs=96kHz, fin=None 500 1k Hz 2k 5k 10k 20k 40k Figure 16. FFT Plot 2006/04 ASAHI KASEI [AKD5381-B] Revision History Date (YY/MM/DD) 04/05/14 05/01/14 06/04/24 Manual Revision KM074700 KM074701 KM074702 Board Revision 0 1 Reason First Edition Board Name Change Circuit Change Error Correction AKD5381 Rev.B AKD5381-B Rev.0 The information on AK5357 was removed. Contents Board Rev: 0 1 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. 2006/04 A B C D E E DGND J1 RIN C1 10u + JP1 GND E AGND VD SW1 U1 1 2 3 4 8 7 6 5 J2 LIN C2 10u 1 CKS0 CKS2 DIF DIF1 RP1 4 3 2 1 D MODE AINR CKS0 16 + D 2 AINL CKS2 15 DIF1 47k 3 L VA VA 1 1 CKS1 DIF 14 DIF0 JP2 CKS1 H C3 2.2u C5 10u + C4 0.1u 4 VCOM PDN 13 T1 NJM78M05FA GND IN OUT 3 JP3 REG REG REG + C8 47u C9 0.1u R3 5.1 R1 5 AGND SCLK 12 51 SCLK C10 47u 2 C + C7 0.1u C6 0.1u 6 VA MCLK 11 2 C11 10u VA JP4 VD VD VD 1 C13 47u 2 + 2 1 B 3 1 6 5 VD for 74HC14 C15 0.1u 10 8 U2C 74HC14 9 U2D 74HC14 11 U2E 74HC14 A 12 13 2 A B + R2 51 MCLK R4 7 VD LRCK 10 51 LRCK C + C12 0.1u 8 DGND SDTO 9 R5 51 SDTO AK5381 VD D1 HSU119 R6 10k 1 U2A 74HC14 2 3 U2B 74HC14 4 PDN B L H SW2 PDN C14 0.1u A U2F 74HC14 Title Size Document Number AKD5381-B Rev A3 Date: C D AK5381 Monday, April 24, 2006 Sheet E 1 1 of 2 A B C D E VCC REG E E + C16 47u C17 10u C18 0.1u + + C19 0.47u 39 38 37 47 45 43 41 48 46 44 D 42 40 VCOM AVSS R TEST1 AVDD NC NC 1 INT1 RX3 RX2 RX1 RX0 IPS0 2 NC DIF0 3 DIF0 4 TEST2 C DIF1 5 DIF1 U3 6 NC AK4114 1 7 DIF2 IPS1 XTO 2 8 9 P/SN 10 XTL0 B 11 XTL1 12 VIN MCKO1 DVDD COUT UOUT BOUT VOUT DVSS DVSS TVDD LRCK TX0 TX1 13 14 15 16 17 18 19 20 21 22 23 C22 0.1u C24 10u + C23 0.1u C25 10u + 24 PORT2 A IN VCC GND 3 2 1 C26 0.1u Title Size Document Number DIT A B + + D INT0 36 OCKS0 35 OCKS1 34 MCLK CM1 33 SCLK PORT1 MCLK SCLK LRCK SDTO 1 2 3 4 5 10 9 8 7 6 CM0 32 LRCK 31 C PDN PDN C20 10p SDTO DSP XTI 30 X1 12.288MHz 29 C21 10p DAUX 28 MCKO2 27 BICK 26 B SDTO 25 JP5 MCLK A AKD5381-B AK4114 Sheet E Rev A3 Date: C D 1 2 of Monday, April 24, 2006 2 |
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