ASAHI KASEI [AKD5355] AKD5355 Evaluation board Rev.A for AK5355 GENERAL DESCRIPTION AKD5355 is an evaluation board for the portable digital audio 16bit A/D converter, AK5355. The AKD5355 includes the input circuit and also has a digital interface transmitter. Further, the AKD5355 can evaluate direct interface with AKM’s D/A converter evaluation board. Ordering guide AKD5355 --- Evaluation board for AK5355 FUNCTION • Compatible with 2 types of interface - Direct interface with AKM’s D/A converter evaluation boards - On-board AK4103 as DIT which transmits optical output • BNC connector for an external clock input VA GND VD LIN AK4103 (DIT) AK5355 RIN Clock Generator Opt Out D/A Data 10pin Header Figure 1. AKD5355 Block Diagram * Circuit diagram and PCB layout are attached at the end of this manual. <KM066403> ’06/01 -1- ASAHI KASEI [AKD5355] Operation sequence 1) Set up the power supply lines. [VA] [VD] [VCC] [AGND] [DGND] = 2.1 ∼ 3.6V = 2.1 ∼ VA = 5.0V = 0V = 0V (Orange) (Orange) (Red) (Black) (Black) : typ. 3.0V, VA pin : typ. 3.0V, VD pin : for digital logic except the AK5355 : for analog ground (including VSS of AK5355) : for logic ground Each supply line should be distributed from the power supply unit. VD and VA must be the same voltage level. 2) Set up the evaluation mode, jumper pins and DIP switches. (See the followings.) 3) Power on. The AK5355 and AK4103 should be reset once bringing SW1 = SW3 = “L” upon power-up. Evaluation mode Applicable Evaluation Mode (1) Evaluation of A/D using DIT (Optical Link) <Default Setting> (2) All interface signals including master clock are fed externally. (3) Evaluation of A/D using DIT at MCLK = 384fs (1) Evaluation of A/D using DIT (Optical Link) PORT1 (DIT) is used. On board DIT (AK4103) converts A/D data to an audio biphase signal, which is output through optical connector (TOTX176). It is possible to connect AKM’s D/A converter evaluation boards or the digital-amplifier that equips DIR input etc. Nothing should be connected to PORT2. DIT (AK4103) operates at SW3=“H”. When using an external clock through a BNC connector (J3), select “EXT” on JP4 (CLK) and short JP3 (XTE). JP6 BICK JP4 CLK XTL EXT 256-64fs 256-32fs 512-64fs 512-32fs JP7 LRCK 256fs JP3 XTE 512fs (2) All interface signals including master clock are fed externally. All interface signals are provided to the AK5355 through PORT2. AKM’s D/A converter evaluation boards can be also connected to PORT2. JP6 BICK JP4 CLK XTL EXT 256-64fs 256-32fs 512-64fs 512-32fs JP7 LRCK 256fs <KM066403> JP3 XTE 512fs ’06/01 -2- ASAHI KASEI [AKD5355] (3) Evaluation of A/D using DIT at MCLK=384fs. PORT1 (DIT) is used. On board DIT (AK4103) is set to the master mode. The AK4103 provides BICK and LRCK to the AK5355 from an external master clock (MCLK). When using an external clock through a BNC connector (J3), select “EXT” on JP4 (CLK) and short JP3 (XTE). (Refer to a Table 1 ∼ 3 for the set up of the DIP switch. The master mode should be selected in Table 2.) JP6 BICK JP4 CLK XTL EXT 256-64fs 256-32fs 512-64fs 512-32fs JP3 JP7 LRCK 256fs XTE 512fs Jumpers Set up 1. JP1 (VD) : VD pin of the AK5355 VA : Supplied from “VA” connector via 10Ω. VD : Supplied from “VD” connector. 2. JP2 (GND) : Connection between AGND and DGND. OPEN : Both grounds are separated on board. SHORT : Both grounds are connected on board. DIP switch set up [SW2]: Set up of AK5355 and AK4103 (Refer to the datasheet) No. Pin default 1 SEL L 2 5355_DIF L 3 4 5 6 4103_DIF1 OFF OFF ON ON Mode H: Input Gain +15dB L: Input Gain +0dB H:I2S L:16bit Left justified 4103_DIF1 L See Table 2 4103_DIF0 L CKS1 L See Table 3 CKS0 H Table 1. Set up for AK5355 and AK4103 4103_DIF0 Mode OFF 24bit, Left justified ON 24bit, I2S OFF 24bit, Left justified ON 24bit, I2S Table 2. Set up of Interface Format <KM066403> Clock mode Slave mode Master mode ’06/01 -3- ASAHI KASEI [AKD5355] CKS1 CKS0 MCLK 0 0 no using 0 1 256fs 1 0 384fs 1 1 512fs Table 3. Set up of CKS0 and CKS1 The function of the toggle SW Upper-side is “H” and lower-side is “L”. [SW1] (PDN): Resets the AK5355. Keep “H” during normal operation. [SW3] (DIT): Resets the AK4103. Keep “H” during normal operation. Input circuit J1 LIN C1 10u + LIN R1 560 J2 RIN C2 10u + RIN R3 560 Figure 2. LIN/RIN Input circuit on board * AKM assumes no responsibility for the trouble when using the circuit examples. <KM066403> ’06/01 -4- ASAHI KASEI [AKD5355] MEASUREMENT RESULTS [Measurement condition] • Measurement unit • MCLK • BCLK • fs • Bit • Power Supply • Interface • Temperature : Audio Precision, System Two, Cascade : 256fs : 64fs : 44.1kHz : 16bit : VA=VD=3.0V : DIT (AK4103) : Room •Gain=0dB (SEL=“L”) S/(N+D) DR (-60dB) S/N (-0.5dB) LIN 85.1[dB] 89.4[dB] 91.8[dB] 89.4[dB] 91.9[dB] RIN 85.3[dB] 89.4[dB] 91.9[dB] 89.4[dB] 91.9[dB] LIN 81.7[dB] 81.2[dB] 84.3[dB] 81.5[dB] 84.4[dB] RIN 81.3[dB] 81.5[dB] 84.3[dB] 81.7[dB] 84.3[dB] Filter 20kHzLPF 20kHzLPF 20kHzLPF+A-Weighted 20kHzLPF 20kHzLPF+A-Weighted •Gain=+15dB (SEL=“H”) S/(N+D) DR (-60dB) S/N (-0.5dB) <KM066403> Filter 20kHzLPF 20kHzLPF 20kHzLPF+A-Weighted 20kHzLPF 20kHzLPF+A-Weighted ’06/01 -5- ASAHI KASEI [AKD5355] • Plot [Gain = 0dB] AKM AK5355 THD + N vs Am plitude (fin=1kHz, G ain=0dB) -70 -72 -74 -76 -78 -80 -82 d B F S -84 -86 -88 -90 -92 -94 -96 -98 -100 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dB r las t.at2c Figure 1. THD+N vs. Input Level AKM AK5355 THD + N vs Input Frequency (Input Level=-0.5dB, G ain=+15dB) -60 -62 -64 -66 -68 -70 -72 d B F S -74 -76 -78 -80 -82 -84 -86 -88 -90 20 50 100 200 500 1k 2k 5k 10k 20k Hz las t.at2c Figure 2. THD+N vs. Input Frequency <KM066403> ’06/01 -6- ASAHI KASEI [AKD5355] AKM AK5355 Linearity (fin=1kHz, G ain=0dB) +0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dB r las t.at2c Figure 3. Linearity AKM AK5355 Frequency Response (Input Level-0.5dB, Gain=0dB) +0 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 -0.8 d B F S -0.9 -1 -1.1 -1.2 -1.3 -1.4 -1.5 -1.6 -1.7 -1.8 -1.9 -2 20 50 100 200 500 1k 2k 5k 10k 20k Hz las t.at2c Figure 4. Frequency Response <KM066403> ’06/01 -7- ASAHI KASEI [AKD5355] AKM AK5355 Crosstalk (Gain=0dB) +0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 20 50 100 200 500 1k 2k 5k 10k 20k 5k 10k 20k Hz las t.at2c Figure 5. Crosstalk AKM AK5355 FFT (Input Level=-0.5dB, fiin=1kHz, Gain=0dB) +0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20 50 100 200 500 1k 2k Hz las t.at2c Figure 6. FFT Plot <KM066403> ’06/01 -8- ASAHI KASEI [AKD5355] AKM AK5355 FFT (Input Level=-60dB, fiin=1kHz, G ain=0dB) +0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20 50 100 200 500 1k 2k 5k 10k 20k 5k 10k 20k Hz las t.at2c Figure 7. FFT Plot AKM AK5355 FFT (noise floor, G ain=0dB) +0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20 50 100 200 500 1k 2k Hz las t.at2c Figure 8. FFT Plot <KM066403> ’06/01 -9- ASAHI KASEI [AKD5355] [Gain = +15dB] AKM AK5355 THD + N vs Am plitude (fin=1kHz, G ain=+15dB) -60 -62 -64 -66 -68 -70 -72 d B F S -74 -76 -78 -80 -82 -84 -86 -88 -90 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dB r las t.at2c Figure 9. THD+N vs. Input Level AKM AK5355 THD + N vs Input Frequency (Input Level=-0.5dB, G ain=+15dB) -60 -62 -64 -66 -68 -70 -72 d B F S -74 -76 -78 -80 -82 -84 -86 -88 -90 20 50 100 200 500 1k 2k 5k 10k 20k Hz las t.at2c Figure 10. THD+N vs. Input Frequency <KM066403> ’06/01 - 10 - ASAHI KASEI [AKD5355] AKM AK5355 Linearity (Gain=+15dB) +0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 +0 dB r las t.at2c Figure 11. Linearity AKM AK5355 Frequency R esponse (Gain=+15dB) +0 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 -0.8 d B F S -0.9 -1 -1.1 -1.2 -1.3 -1.4 -1.5 -1.6 -1.7 -1.8 -1.9 -2 20 50 100 200 500 1k 2k 5k 10k 20k Hz las t.at2c Figure 12. Frequency Response <KM066403> ’06/01 - 11 - ASAHI KASEI [AKD5355] AKM AK5355 Crosstalk (G ain=+15dB) +0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 20 50 100 200 500 1k 2k 5k 10k 20k 5k 10k 20k Hz las t.at2c Figure 13. Crosstalk AKM AK5355 FFT (Input Level-0.5dB,fin=1kHz, G ain=+15dB) +0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20 50 100 200 500 1k 2k Hz las t.at2c Figure 14. FFT Plot <KM066403> ’06/01 - 12 - ASAHI KASEI [AKD5355] AKM AK5355 FFT (Input Level=-60dB,fin=1kHz, G ain=+15dB) +0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20 50 100 200 500 1k 2k 5k 10k 20k 5k 10k 20k Hz las t.at2c Figure 15. FFT Plot AKM AK5355 FFT (noise floor, Gain=+15dB) +0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20 50 100 200 500 1k 2k Hz las t.at2c Figure 16. FFT Plot <KM066403> ’06/01 - 13 - ASAHI KASEI [AKD5355] 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. <KM066403> ’06/01 - 14 - A B J1 LIN C E +5V C1 10u LIN + E D E 1 2 R1 560 D1 1S1588 R2 10k U3A 74HC14 1 3 4 PDN 1 C2 10u 2 H 3 J2 RIN L U3B 74HC14 SW1 PDN C3 0.1u 2 + RIN R3 560 D D U2 CN1 C4 C5 2.2u 0.1u + RIN U1 CN2 1 1 VCOM 2 2 RIN TST1 16 NC 15 R8 LIN 3 3 LIN DIF R9 4 VA + L1 1 C8 47u C6 10u + 2 4 VSS 5 VA PDN 13 BCLK 12 C7 0.1u 5 Y8 A8 9 16 12 Y7 A7 8 15 13 Y6 A6 7 SEL 14 14 Y5 A5 6 5355_DIF 13 15 Y4 A4 5 PDN 12 16 Y3 A3 4 BCLK 11 17 Y2 A2 3 MCLK 18 Y1 A1 2 LRCK 10 GND DIR 19 20 VCC G1 1 51 14 C 11 C 51 R10 51 (short) R11 51 6 6 VA C9 10u + VD MCLK 11 C10 0.1u R13 51 7 7 SEL LRCK 10 10 8 8 NC SDTO 9 9 C11 47u + R12 10 JP1 VD 1 VD B AK5355 SDTO C12 0.1u 2 B L2 10u 74LVC541 R14 51 VD for SN74LVC07A L3 1 C17 0.1u 2 10u DGND JP2 GND AGND A A Title Size A3 Date: A B C D AKD5355 Document Number Rev AK5355 Wednesday, January 25, 2006 Sheet E A 1 of 2 A B C D E +5V E E PORT1 5 6 +5V 5 6 IN VCC IF GND 4 3 2 1 R15 1k D2 1S1588 1 R16 10k U3C 74HC14 1 L 3 5 H +5V 0.1u SW2 U3D 74HC14 9 SEL 5355_DIF 4103_DIF1 4103_DIF0 CKS1 CKS0 8 C14 0.1u 1 2 3 4 5 6 12 11 10 9 8 7 MODE U4 1 2 3 4 5 6 7 8 9 10 11 12 2 SW3 DIT 6 C13 D +5V V1 TRANS RESETN MCLK SDTI BICK LRCK FS0/CSN FS1/CDTI FS2/CCLK FS3/CDTO C1 U1 DIF2 DIF1 DIF0 TXP TXN DVSS DVDD CKS1 CKS0 BLS ANS 24 23 22 21 20 19 18 17 16 15 14 13 RP1 6 5 4 3 2 1 4103_DIF1 4103_DIF0 C15 0.1u C16 SEL 5355_DIF 4103_DIF1 4103_DIF0 CKS1 CKS0 + 2 TOTX176 10u D 47k CKS1 +5V AK4103 U3E 10 U3F 11 74HC14 12 13 CKS0 74HC14 for 74HCU04, 74HC14, 74HC4040 C MCLK BCLK LRCK SDTO ROM PORT2 1 2 3 4 5 C19 0.1u R17 1k 10 9 8 7 6 C20 0.1u +5V 2 C + C18 47u C21 0.1u +5V X1 11.2896MHz Serial out R18 U5A SN74LVC07A +5V 10k B L4 10u 1 +5V 2 1 R19 1M SDTO MCLK JP4 CLK JP6 BICK U7 9 256fs-64fs 7 256fs-32fs/512fs-64fs 6 512fs-32fs 5 BCLK JP7 256fs LRCK 512fs LRCK 3 2 4 13 12 14 15 1 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 CLK 10 RST 11 U6B 74HCU04 U6A 74HCU04 4 2 3 C22 10p XTL JP3 XTE 1 B C23 10p EXT U6C 74HCU04 6 J3 EXT 5 R20 51 74HC4040 A A Title Size A3 Date: A B C D AKD5355 Document Number Rev Interface Wednesday, January 25, 2006 Sheet E A 2 of 2