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 AK4114 (DIT) AK5381 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. <KM074702> 2006/04 -1- 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 <KM074702> 2006/04 -2- 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.) <Default> 2. JP2 (CKS1) : Setting of CKS1 pin for AK5381 H : Master mode L : Slave mode <Default> 3. JP3 (VA) : Select VA for AK5381 VA : Supply from VA connector <Default> REG : Supply from regulator. VA connector should be supplied +15V. 4. JP4 (VD) : Select VD for AK5381 VA : Supply from VA connector VD : Supply from VD connector <Default> <KM074702> 2006/04 -3- 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 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 Name CKS0 CKS2 DIF DIF1 Input Level CMOS CMOS CMOS CMOS TTL OFF (“L”) ON (“H”) See Table 2 MSB justified AK4114 Master mode Table 1. Mode Setting I2S Compatible AK4114 Slave mode HPF ON OFF ON ON ON 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. <KM074702> 2006/04 -4- 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. <KM074702> 2006/04 -5- 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 <KM074702> Result (Lch / Rch) Unit 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 dB dB dB dB dB dB dB 2006/04 -6- ASAHI KASEI [AKD5381-B] [ADC Plot : fs=48kHz] AKM AK5381 THD+N vs. Input Level VA=VD=5.0V, fs=48kHz, fin=1kHz -70 -75 -80 -85 -90 d B F S -95 -100 -105 -110 -115 -120 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 dBr Figure 1. THD+N vs. Input Level AKM AK5381 THD+N vs. Input Frequency VA=VD=5.0V, fs=48kHz, Input=-1dBr -70 -75 -80 -85 -90 d B F S -95 -100 -105 -110 -115 -120 20 50 100 200 500 1k 2k 5k 10k 20k Hz Figure 2. THD+N vs. Input Frequency <KM074702> 2006/04 -7- ASAHI KASEI [AKD5381-B] AKM AK5381 Linearity VA=VD=5.0V, fs=48kHz, fin=1kHz +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 3. Linearity AKM AK5381 Frequency Response VA=VD=5.0V, fs=48kHz, Input=-1dBr -0.5 -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 1k 2k 5k 10k 20k Hz Figure 4. Frequency Response <KM074702> 2006/04 -8- ASAHI KASEI [AKD5381-B] AKM AK5381 Crosstalk VA=VD=5.0V, fs=48kHz, Input=-1dBr -70 -75 -80 -85 -90 -95 -100 -105 d B -110 -115 -120 -125 -130 -135 -140 -145 -150 20 50 100 200 500 1k 2k 5k 10k 20k 5k 10k 20k Hz Figure 5. Crosstalk AKM AK5381 FFT Plot VA=VD=5.0V, fs=48kHz, Input=-1dBr, fin=1kHz +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 6. FFT Plot <KM074702> 2006/04 -9- ASAHI KASEI [AKD5381-B] AKM AK5381 FFT Plot VA=VD=5.0V, fs=48kHz, Input=-60dBr, fin=1kHz +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 2k 5k 10k 20k Hz Figure 7. FFT Plot AKM AK5381 FFT Plot VA=VD=5.0V, fs=48kHz, fin=None +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 Hz Figure 8. FFT Plot <KM074702> 2006/04 - 10 - ASAHI KASEI [AKD5381-B] [ADC Plot : fs=96kHz] AKM AK5381 THD+N vs. Input Level VA=VD=5.0V, fs=96kHz, fin=1kHz -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 -80 -70 -60 -50 -40 -30 -20 -10 dBr Figure 9. THD+N vs. Input Level AKM AK5381 THD+N vs. Input Frequency VA=VD=5.0V, fs=96kHz, Input=-1dBr -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 50 100 200 500 1k 2k 5k 10k 20k 40k Hz Figure 10. THD+N vs. Input Frequency <KM074702> 2006/04 - 11 - ASAHI KASEI [AKD5381-B] AKM AK5381 Linearity VA=VD=5.0V, fs=96kHz, fin=1kHz +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 11. Linearity AKM AK5381 Frequency Response VA=VD=5.0V, fs=96kHz, Input=-1dBr -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 50 100 200 500 1k 2k 5k 10k 20k 40k Hz Figure 12. Frequency Response <KM074702> 2006/04 - 12 - ASAHI KASEI [AKD5381-B] AKM AK5381 Crosstalk VA=VD=5.0V, fs=96kHz, Input=-1dBr -70 -75 -80 -85 -90 -95 -100 -105 d B -110 -115 -120 -125 -130 -135 -140 -145 -150 20 50 100 200 500 1k 2k 5k 10k 20k 40k 5k 10k 20k 40k Hz Figure 13. Crosstalk AKM AK5381 FFT Plot VA=VD=5.0V, fs=96kHz, Input=-1dBr, fin=1kHz +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 14. FFT Plot <KM074702> 2006/04 - 13 - ASAHI KASEI [AKD5381-B] AKM AK5381 FFT Plot VA=VD=5.0V, fs=96kHz, Input=-60dBr, fin=1kHz +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 15. FFT Plot AKM AK5381 FFT Plot VA=VD=5.0V, fs=96kHz, fin=None +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 16. FFT Plot <KM074702> 2006/04 - 14 - ASAHI KASEI [AKD5381-B] Revision History Date (YY/MM/DD) 04/05/14 05/01/14 Manual Revision KM074700 KM074701 Board Revision 06/04/24 KM074702 1 Reason Contents First Edition 0 Board Name Change Circuit Change Error Correction AKD5381 Rev.BÆAKD5381-B Rev.0 The information on AK5357 was removed. Board Rev: 0Æ1 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. <KM074702> 2006/04 - 15 - A B C E DGND J1 RIN JP1 GND D E E AGND C1 10u + VD SW1 J2 LIN 1 2 3 4 U1 C2 10u 8 7 6 5 CKS0 CKS2 DIF DIF1 RP1 MODE + 1 AINR CKS0 16 2 AINL CKS2 15 3 CKS1 DIF 14 4 VCOM PDN 13 AGND SCLK 4 3 2 1 D DIF1 D 47k L JP2 CKS1 VA VA T1 NJM78M05FA JP3 REG H C3 2.2u + C4 0.1u 2 1 C7 0.1u OUT 5 3 REG + C8 47u C5 10u C9 0.1u + + R3 5.1 7 C C11 10u VA VD LRCK VA 8 DGND SDTO 51 R2 51 R4 51 R5 51 SCLK 11 MCLK 10 + C12 0.1u JP4 VD LRCK 9 C SDTO AK5381 VD VD MCLK R1 12 C6 0.1u 6 2 C10 47u IN GND REG 1 DIF0 1 VD + 1 2 2 C13 47u D1 HSU119 R6 10k U2A 74HC14 1 B U2B 74HC14 3 4 B PDN 1 H 3 L 2 C14 0.1u 2 SW2 PDN 6 VD 5 U2C 74HC14 for 74HC14 8 C15 0.1u 9 U2D 74HC14 10 11 U2E 74HC14 12 A 13 A U2F 74HC14 Title Size A3 Date: A B C D AKD5381-B Document Number Rev 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 DIF0 1 IPS0 2 D INT1 AVDD R 38 39 40 VCOM 41 AVSS 42 RX0 43 NC 44 RX1 45 TEST1 46 RX2 RX3 NC 48 47 + D 37 C19 0.47u INT0 36 NC OCKS0 35 3 DIF0 OCKS1 34 4 TEST2 CM1 33 DIF1 CM0 MCLK SCLK PORT1 5 DIF1 C LRCK U3 7 AK4114 NC PDN 31 PDN C20 10p 30 DIF2 XTI IPS1 XTO 9 P/SN DAUX 28 10 XTL0 MCKO2 27 11 XTL1 BICK 26 12 VIN SDTO 25 1 2 3 4 5 10 9 8 7 6 C DSP SDTO 1 6 MCLK SCLK LRCK SDTO 32 29 2 X1 12.288MHz 8 C24 10u C25 10u LRCK B 24 MCKO1 23 22 DVSS DVDD C23 0.1u + 21 VOUT 20 UOUT 19 COUT 18 BOUT 17 TX1 16 TX0 15 14 C22 0.1u + 13 TVDD B DVSS C21 10p JP5 MCLK PORT2 A IN VCC 3 2 GND 1 A C26 0.1u DIT Title Size A3 Date: A B C D AKD5381-B Document Number Rev AK4114 Monday, April 24, 2006 Sheet E 1 2 of 2