ASAHI KASEI [AKD4550] AKD4550-E Evaluation board Rev.0 for AK4550 GENERAL DESCRIPTION AKD4550-E is an evaluation board for the portable digital audio 16bit A/D and D/A converter, AK4550. The AKD4550-E can evaluate A/D converter and D/A converter separately in addition to loopback mode (A/D → D/A). The A/D section can be evaluated by interfacing with AKM’s DAC evaluation boards directly. The AKD4550 has the interface with AKM’s ADC evaluation boards. Therefore, it’s easy to evaluate the D/A section. The AKD4550-E also has the digital audio interface and can achieve the interface with digital audio systems via opt-connector. Ordering guide AKD4550 -E --- Evaluation board for AK4550 FUNCTION • Compatible with 2 types of interface - Direct interface with AKM’s A/D & D/A converter evaluation boards - DIT/DIR with optical input/output REG VDD AGND DGND Opt In Regulator AK4114 DIT/DIR AINL/ AINR Opt Out AK4550 AOUTL/ AOUTR 10pin Header DSP Figure 1. AKD4550-E Block Diagram * Circuit diagram and PCB layout are attached at the end of this manual. <KM083000> 2006/02 -1- ASAHI KASEI [AKD4550] Evaluation Board Manual Operation sequence 1) Set up the power supply lines. [VDD] (Orange) = 1.6 ∼ 3.6V [REG] (Red) = 5.0V [AGND] (Black) = 0V [DGND] (Black) = 0V : for VDD of AK4550 : for regulator : for analog ground (including VSS of AK4550) : 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 AK4550 should be reset once bringing SW2 (PDN) “OFF” upon power-up. <KM083000> 2006/02 -2- ASAHI KASEI [AKD4550] Evaluation mode Applicable Evaluation Mode 1) Evaluation of loopback mode (default) 2) Evaluation of D/A using A/D converted data 3) Evaluation of D/A using DIR (Optical Link) 4) Evaluation of A/D using D/A converted data 5) Evaluation of A/D using DIT (Optical Link) 6) All interface signals including master clock are fed externally. 5) AKD43XX 4) D/A Board PORT2 DIT PORT3 AKD4550-E 10pin-Header 1) CD PORT1 DIR Player 3) AKD53XX A/D Board 2) 1) Evaluation of loopback mode. (default) Nothing should be connected to PORT1/PORT3. JP4 MCLK JP5 SCLK JP6 JP7 LRCK SDTI DIR <KM083000> ADC 2006/02 -3- ASAHI KASEI [AKD4550] 2) Evaluation of D/A using A/D converted data. D/A part can be evaluated by connecting with AKM’s A/D evaluation boards via PORT3. Nothing should be connected to PORT1 JP4 MCLK JP5 SCLK JP6 LRCK JP7 SDTI DIR ADC 3) Evaluation of D/A using DIR. (Optical link) PORT1 (TORX141) is used. DIR generates MCLK, SCLK, LRCK and SDATA from the received data through optical connector (TORX141). Used for the evaluation using CD test disk. Nothing should be connected to PORT2/PORT3. JP4 MCLK JP5 SCLK JP6 LRCK JP7 SDTI DIR ADC 4) Evaluation of A/D using D/A converted data. A/D part can be evaluated by connecting with AKM’s D/A evaluation boards via PORT3. Nothing should be connected to PORT1. JP4 MCLK JP5 SCLK JP6 LRCK JP7 SDTI DIR <KM083000> ADC 2006/02 -4- ASAHI KASEI [AKD4550] 5) Evaluation of A/D using DIT. (Optical link) PORT2 (TOTX141) 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. JP4 MCLK JP5 SCLK JP6 LRCK JP7 SDTI DIR ADC 6) All interfacing signals (MCLK, SCLK, LRCK) are fed from the external circuit through PORT3. Under the following set-up, all external signals needed for the AK4550 to operate could be fed through PORT3. JP4 MCLK JP5 SCLK JP6 LRCK JP7 SDTI DIR <KM083000> ADC 2006/02 -5- ASAHI KASEI [AKD4550] DIP switch set up Upper-side is “ON” (“H”) and lower side is “OFF” (“L”). [SW1]: Set up the AK4550 and AK4114. . SW No. SW Name 1 DIF2, 0 2 3 DEM1 DEM0 4 NC Mode AK4550 and AK4114 Audio Format Setting Always OFF. Set up the de-emphasis of AK4550 (See table 2) No use Table 1. DIPswitch set-up of AK4114 DEM1 DEM0 Mode (SW1-#2) (SW1-#3) OFF OFF 44.1kHz OFF ON OFF ON OFF 48kHz ON ON 32kHz Table 2. DIPswitch set up of de-emphasis <KM083000> 2006/02 -6- ASAHI KASEI [AKD4550] Other jumper pins set up [JP1] (GND): Connection between AGND and DGND open: Both grounds are separated on board.<default> short: Both grounds are connected on board. [JP2] (REG): Select to regulator open: On-board regulator is not used. <default> short: On-board regulator is used.(The connector “VDD” can be open.) [JP3] (PWR): Pull up power supply select for SDTO. VDD: Connected to VDD of AK4550. <default> D3V: Supplied from regulator (3V). The function of the toggle SW. Upper-side is “ON” and lower side is “OFF”. [SW2] (PDN): Resets the AK4550 and AK4114. Keep “ON” during normal operation. Indication for LED [LED1] (ERF): Monitor INT0 pin of the AK4114. LED turns on when some error has occurred to AK4114. <KM083000> 2006/02 -7- ASAHI KASEI [AKD4550] Input Circuit C1 4.7u J1 6 R101 470 AINR + 4 3 C102 2.2n AINL/AINR C4 4.7u R100 470 AINL + C101 2.2n Figure 2. Input circuit on board Output Circuit + R24 220 AOUTR J2 4 3 R23 10k R25 220 + C30 22u 6 AOUTL/AOUTR AOUTL C31 22u R22 10k Figure 3. Output circuit on board * AKM assumes no responsibility for the trouble when using the circuit examples. <KM083000> 2006/02 -8- ASAHI KASEI [AKD4550] MEASUREMENT RESULTS [Measurement condition] • Measurement unit : Audio Precision, System two : 256fs • MCLK : 64fs (ADC, DAC) • SCLK : 44.1kHz • fs : 16bit • Bit : VDD = 2.5V, 3.0V,3.6V • Power Supply : DIT/DIR • Interface : Room • Temperature 1. ADC (2) SCLK = 64fs VDD 2.5V 3.0V 3.6V Parameter S/(N+D) (-0.5dBFS) D-Range (-60dBFS) S/N (0 data) S/(N+D) (-0.5dBFS) D-Range (-60dBFS) S/N (0 data) S/(N+D) (-0.5dBFS) D-Range (-60dBFS) S/N (0 data) Measured Filter 20kHz LPF 20kLPF + A-weighted 20kLPF + A-weighted 20kHz LPF 20kLPF + A-weighted 20kLPF + A-weighted 20kHz LPF 20kLPF + A-weighted 20kLPF + A-weighted fs = 44.1kHz 81.6 dB 89.7 dB 89.7 dB 80.7 dB 90.9 dB 90.9 dB 79.6 dB 92.0 dB 92.0 dB Parameter S/(N+D) (0dBFS) D-Range (-60dBFS) S/N (0 data) S/(N+D) (0dBFS) D-Range (-60dBFS) S/N (0 data) S/(N+D) (0dBFS) D-Range (-60dBFS) S/N (0 data) Measured Filter 20kHz LPF 22kLPF + A-weighted 22kLPF + A-weighted 20kHz LPF 22kLPF + A-weighted 22kLPF + A-weighted 20kHz LPF 22kLPF + A-weighted 22kLPF + A-weighted fs = 44.1kHz 87.5 dB 92.5 dB 93.2 dB 89.6 dB 93.8 dB 94.9 dB 91.3 dB 95.2 dB 96.6 dB 2. DAC (1) SCLK = 64fs VDD 2.5V 3.0V 3.6V <KM083000> 2006/02 -9- ASAHI KASEI [AKD4550] 3.Graph (1) ADC AK M AK4550 R ev.B AD C THD+N vs Input Level VD D =2.5V, SC LK =64fs, fs=44.1kHz -70 -75 -80 d B F S -85 -90 -95 -100 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 dB r C olor Line Style Thick D ata Axis R ed Solid 3 D SP Audio Anlr.TH D +N Am pl Left las t.at2 AK M A K4550 R ev.B A D C THD +N vs Input Frequency VD D =2.5V, SC LK =64fs, fs=44.1kHz -70 -75 -80 d B F S -85 -90 -95 -100 20 50 100 200 500 1k 2k 5k 10k 20k Hz C olor Line Style Thick D ata Axis R ed Solid 3 D SP Audio Anlr.TH D +N Am pl Left las t.at2 <KM083000> 2006/02 - 10 - ASAHI KASEI [AKD4550] AK M AK4550 R ev.B AD C Linearity VD D =2.5V, SC LK =64fs, fs=44.1kHz -20 -40 d B F S -60 -80 -100 -120 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 dB r C olor Line Style Thick D ata Axis R ed Solid 3 D SP Audio Anlr.Bandpas s Left las t.at2 AK M A K4550 R ev.B A DC Frequency R esponse VD D =2.5V, SC LK=64fs, fs=44.1kHz, Input=-0.5dB r +0 -0.25 -0.5 d B F S -0.75 -1 -1.25 -1.5 -1.75 -2 20 50 100 200 500 1k 2k 5k 10k 20k Hz C olor Line Style Thick D ata Axis R ed Solid 3 D SP Audio Anlr.Bandpas s Left las t.at2 <KM083000> 2006/02 - 11 - ASAHI KASEI [AKD4550] AK M A K4550 Rev.B A D C C rosstalk VD D =2.5V, SC LK =64fs, fs=44.1kHz -90 -95 -100 -105 d B -110 -115 -120 -125 -130 20 50 100 200 500 1k 2k 5k 10k 20k 10k 20k Hz C olor Line Style Thick D ata Axis R ed Solid 3 D SP Audio Anlr.C ros s talk Left las t.at2 AK M AK4550 R ev.B AD C FFT P lot VD D =2.5V, SC LK=64fs, fs=44.1kHz, Input=-0.5dB r +0 -20 -40 d B F S -60 -80 -100 -120 -140 -160 20 50 100 200 500 1k 2k 5k Hz C olor Line Style Thick D ata Axis R ed Solid 3 Fft.C h.1 Am pl Left las t.at2 <KM083000> 2006/02 - 12 - ASAHI KASEI [AKD4550] AK M AK4550 R ev.B AD C FFT P lot V DD =2.5V, S C LK=64fs, fs=44.1kHz, Input=-60dBr +0 -20 -40 d B F S -60 -80 -100 -120 -140 -160 20 50 100 200 500 1k 2k 5k 10k 20k 10k 20k Hz C olor Line Style Thick D ata Axis R ed Solid 3 Fft.C h.1 Am pl Left las t.at2 AK M AK4550 R ev.B AD C FFT P lot VD D =2.5V, SC LK=64fs, fs=44.1kHz, Input=None +0 -20 -40 d B F S -60 -80 -100 -120 -140 -160 20 50 100 200 500 1k 2k 5k Hz C olor Line Style Thick D ata Axis R ed Solid 3 Fft.C h.1 Am pl Left las t.at2 <KM083000> 2006/02 - 13 - ASAHI KASEI [AKD4550] (2) DAC AK M AK4550 R ev.B D AC THD+N vs Input Level VD D =2.5V, SC LK =64fs, fs=44.1kHz -80 -82.5 -85 d B r -87.5 A -92.5 -90 -95 -97.5 -100 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dB FS C olor Line Style Thick D ata Axis R ed Solid 3 Anlr.TH D +N Am pl Left las t.at2 AK M A K4550 R ev.B D A C THD +N vs Input Frequency VD D =2.5V, SC LK =64fs, fs=44.1kHz -80 -82.5 -85 d B r -87.5 A -92.5 -90 -95 -97.5 -100 20 50 100 200 500 1k 2k 5k 10k 20k Hz C olor Line Style Thick D ata Axis R ed Solid 3 Anlr.TH D +N Am pl Left las t.at2 <KM083000> 2006/02 - 14 - ASAHI KASEI [AKD4550] AK M AK4550 R ev.B D AC Linearity VD D =2.5V, SC LK =64fs, fs=44.1kHz +0 -20 -40 d B r -60 A -80 -100 -120 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dB FS C olor Line Style Thick D ata Axis R ed Solid 3 Anlr.Bandpas s Left las t.at2 AK M A K4550 R ev.B D AC Frequency R esponse VD D =2.5V, SC LK=64fs, fs=44.1kHz, Input=0dBFS +1 + 0.75 + 0.5 d B r + 0.25 A -0.25 +0 -0.5 -0.75 -1 2k 4k 6k 8k 10k 12k 14k 16k 18k 20k Hz C olor Line Style Thick D ata Axis R ed Solid 3 Anlr.Bandpas s Left las t.at2 <KM083000> 2006/02 - 15 - ASAHI KASEI [AKD4550] AK M A K4550 Rev.B D A C C rosstalk VD D =2.5V, SC LK =64fs, fs=44.1kHz -80 -85 -90 d B -95 -100 -105 -110 20 50 100 200 500 1k 2k 5k 10k 20k 10k 20k Hz C olor Line Style Thick D ata Axis R ed Solid 3 Anlr.C ros s talk Left las t.at2 AK M AK4550 R ev.B DA C FFT P lot VD D =2.5V, SC LK=64fs, fs=44.1kHz, Input=0dBFS +0 -20 -40 d B r -60 A -100 -80 -120 -140 -160 20 50 100 200 500 1k 2k 5k Hz C olor Line Style Thick D ata Axis R ed Solid 3 Fft.C h.1 Am pl Left las t.at2 <KM083000> 2006/02 - 16 - ASAHI KASEI [AKD4550] AK M AK4550 R ev.B DA C FFT P lot VD D =2.5V, SC LK=64fs, fs=44.1kHz, Input=-60dBFS +0 -20 -40 d B r -60 A -100 -80 -120 -140 -160 20 50 100 200 500 1k 2k 5k 10k 20k 10k 20k Hz C olor Line Style Thick D ata Axis R ed Solid 3 Fft.C h.1 Am pl Left las t.at2 AK M AK4550 R ev.B DA C FFT P lot VD D =2.5V, SC LK=64fs, fs=44.1kHz, Input=None +0 -20 -40 d B r -60 A -100 -80 -120 -140 -160 20 50 100 200 500 1k 2k 5k Hz C olor Line Style Thick D ata Axis R ed Solid 3 Fft.C h.1 Am pl Left las t.at2 <KM083000> 2006/02 - 17 - ASAHI KASEI [AKD4550] Revision History Date (YY/MM/DD) 06/02/01 Manual Revision KM083000 Board Revision 0 Reason Contents First Edtion 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. <KM083000> 2006/02 - 18 - A B C D E E E R101 470 REG VDD AGND T45_R T45_O T45_BK T45_BK DGND R2 220 + C1 4.7u J1 J2 6 6 C2 22u C4 4.7u (5V) R100 470 1 VA 1 REG R1 10k C3 22u (1.6-3.6V) 4 3 AOUTL/AOUTR R4 220 + AINL/AINR 1 C102 2.2n 1 + 4 3 R5 10k + REG D C101 2.2n DGND JP1 GND AGND D VD 1 OUT C6 0.1u 2 IN C5 0.1u GND T1 TA4803F C100 C8 4.7u 0.1u C7 + 47u + U1 1 VCOM AOUTR 16 2 AINR AOUTL 14 3 AINL PWDA 15 4 VSS PWAD 13 5 VDD SCLK 12 VA JP2 REG L1 47u 1 + 2 (short) R7 5.1 2 C10 LVC VDD C11 10u + 1 C C9 0.1u 6 DEM0 MCLK C PWDAN R8 51 R9 51 BCLK 11 MCLK R10 51 7 DEM1 LRCK 10 R11 51 LRCK R12 51 8 SDTO SDTI 9 SDTI B B AK4550 DEM0 DEM1 4554_SDTO A A Title Size A3 Date: A B C D AKD4550-E Document Number Rev AK4550 Tuesday, February 07, 2006 Sheet E 0 1 of 4 A B C D E 1 VD L2 47u PORT1 DIP SW DEM1 DEM0 OFF 44.1k OFF ON OFF ON OFF 48k ON ON 32k AK4555 ON OFF AK4550/4 OFF VCC 3 E GND OUT 2 1 TORX141 C14 10u + C13 10u C12 0.1u R13 470 + DIF2, 0 VD 2 E C15 0.1u C16 0.47u R14 18k VD DEM0 1 37 IPS0 VD VD INT1 38 AVDD 39 40 R AVSS VCOM 41 42 RX0 43 NC 44 RX1 45 TEST1 MODE2 D U3A INT0 36 1 14 2 7 R15 1k LED1 ERF 2 1 74HC14 DEM1 2 NC OCKS0 35 3 DIF0 OCKS1 34 4 TEST2 CM1 33 5 DIF1 CM0 32 6 NC PDN 31 AK4114 C 7 DIF2 8 4114_PDN XTI 30 IPS1 XTO 29 9 P/SN DAUX 28 10 XTL0 MCKO2 27 11 XTL1 BICK 26 DIR_BICK 12 VIN SDTO 25 DIR_SDTO C18 5p 2 X1 11.2896MHz VD C TP1 EXTCLK 1 C17 5p 1 47k RX2 U2 47 6 5 4 46 SW1 1 2 3 NC D DIF2,0 DEM 1 DEM 0 48 4 3 2 1 RX3 RP1 SDTO GND 1 TOTX141 LRCK 24 MCKO1 23 22 DVSS DVDD 21 DIR_LRCK + 20 VOUT UOUT 19 COUT 18 BOUT 17 TX1 16 15 14 TVDD 13 A 3 2 C20 0.1u DIR_MCKO C21 10u C22 10u VD PORT2 IN VCC C19 0.1u + VD TX0 B DVSS B R16 5.1 VD A C23 0.1u Title Size A3 Date: A B C D AKD4550-E Document Number Rev DIR/DIT Wednesday, February 01, 2006 Sheet E 0 2 of 4 A B C D E E E JP3 PWR VDD VDD VD D3V R17 1k U4 7 2 14 SDTO U5A 1 4554_SDTO 74LVC07ANS PWDAN 11 Y8 A8 9 12 Y7 A7 8 LVC D D JP4MCLK 13 MCLK Y6 A6 7 DIR_MCKO JP5SCLK 14 BCLK Y5 A5 6 DIR_BICK JP6LRCK LRCK 15 Y4 A4 5 SDTI 16 Y3 A3 4 17 Y2 A2 3 18 Y1 A1 2 10 GND G2 19 20 VCC G1 1 DIR_LRCK C C C24 0.1u VD 2 LVC R18 10k U3B 1 D1 1S1588 3 B 74HC14 H 1 2 3 4 5 10 9 8 7 6 GND GND NC NC SDTO DSP 74LVC541 R19 VD VD 14 4 7 U3C 5 10k 14 6 7 4114_PDN B 74HC14 ADC 1 3 L PORT3 MCLK BICK LRCK SDTI VD for 74HC14 C25 0.1u for 74LVC07ANS VD SDTO JP7 SDTI 2 SW2 PDN LVC C26 0.1u DIR_SDTO DIR C27 0.1u A A Title Size A3 Date: A B C D AKD4550-E Document Number Rev LOGIC 0 Wednesday, February 01, 2006 Sheet E 3 of 4 A B C D E E E D D VD C C LVC U5B 7 3 4 14 74LVC07ANS U5C 7 5 U3D 9 14 8 7 6 14 74LVC07ANS U5D 7 9 74HC14 8 14 74LVC07ANS U5E 7 U3E B 11 14 10 7 11 74HC14 13 74LVC07ANS B U5F 7 13 U3F 10 14 12 14 74LVC07ANS 14 12 7 74HC14 A A Title Size A3 Date: A B C D AKD4550-E Document Number Rev PIN 0 Wednesday, February 01, 2006 Sheet E 4 of 4