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The AKD5538-B is an evaluation board for AK5538VN, which is 32bit, 8k – 768kHz, 8ch ADC.
The AKD5538-B is includes the analog input circuit and also has a digital interface transmitter .
Further, the AKD5538-B can achieve the interface with digital audio systems via BNC-Connector.
Ordering guide
AKD5538-B
• DIT with BNC or Optical digital output.
• ADC 8ch input is possible.
• BNC Connector for an external clock input.
INPUT
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
AIN8
* Circuit diagram and PCB layout are attached at the end of this manual.
<KM131000>
GENERAL DESCRIPTION
--
Evaluation board for AK5538VN
-15V
+15V
-VOP
+VOP
Regulators
+3.3V
+1.8V
+3.3V
AVDD
Input
Buffer
Input
Buffer
Input
Buffer
Input
Buffer
Figure 1. AKD5538-B Block Diagram
AK5538 Evaluation Board Rev.0
FUNCTION
VDD18
TVDD
AK4118A
AK5538
Generator
DSP Data
10pin Header
- 1-
[AKD5538-B]
AKD5538-B
BNC_TX
(OUT)
(DIT)
OPT_TX
(OUT)
Clock
2018/10
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Summary of Contents for Asahi KASEI AKD5538-B
- Page 1 AK5538 Evaluation Board Rev.0 GENERAL DESCRIPTION The AKD5538-B is an evaluation board for AK5538VN, which is 32bit, 8k – 768kHz, 8ch ADC. The AKD5538-B is includes the analog input circuit and also has a digital interface transmitter . Further, the AKD5538-B can achieve the interface with digital audio systems via BNC-Connector.
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Page 2: Evaluation Board Diagram
J401 SW800 SW801 J800 J600 J500 J501 Figure 2. AKD5538-B Board Diagram *AKD5538-B Evaluation Board Description (1) U100 ( AK5538 ) 32bit,8k - 768kHz,8ch A/D Converter. (2) J200,J201,J300,J301,J400,J401,J500,J501 ( Analog data ) Cannon Connector : Differential Analog Input (3) J600 / PORT600 ( Digital data ) BNC Connector / Optical Connector: Digital Output. - Page 3 [AKD5538-B] (8) SW800 ( Toggle switch ) Toggle type-switch PDN for AK5538. “H” : PDN = High “L” : PDN = Low (9) SW801 ( Toggle switch ) Toggle type-switch PDN for AK4118A. “H” : PDN = High “L” : PDN = Low (10) SW802,SW803,SW804 ( Dip switch) DIP type-switch for AK5538.
- Page 4 [AKD5538-B] Evaluation Board Manual Operation sequence [1] Power supply line settings [2] Jumped pins settings [3] DIP switches settings [4] Toggle switches settings [5] Register control (Serial control) [6] Evaluation modes <KM131000> 2018/10 - 4-...
- Page 5 [AKD5538-B] [1] Power supply line settings (1-1) Power supply settings : Used the regulator (T1001,T1002,T1003,T1004,T1005) <Default> Set up the power supplied lines : * Each supply line should be distributed from the power supply unit. Name Color Setting (Typ) Function...
- Page 6 [AKD5538-B] (1-2) About jumper for power supply : The roles of the jumper or the short resistance for each power supply supplied from the regulator are as follows. Connection of the jumper for power supply : Name Function Comments Default Settings...
- Page 7 [AKD5538-B] [2] Jumped pins settings Names Default Functions JP600 TXDATA-SEL COAX Select COAX / Optical Connector for TX data of AK4118A. COAX: COAX for TX data of AK4118A. (default) OPT: Optical for TX data of AK4118A. JP801 BICK-SEL Select input / output to AK5538 (U100) BICK...
- Page 8 [AKD5538-B] JP1004 VSS-SEL Short Select connection / separation between analog ground AVSS and digital ground DVSS. Open: Separate analog ground from digital ground Short: Connect analog ground to digital ground (default) Table 2. Main board Jumper pin setting <KM131000> 2018/10...
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Page 9: Dip Switches Settings
[AKD5538-B] [3] DIP switches settings (3-1). Setting for SW600 (Sets AK4118A (U600) audio format and master clock setting) Switch Name Function default DIF2 Set-up of DIF0 pin. DIF1 Set-up of DIF1 pin. DIF0 Set-up of DIF2 pin. OCKS1 Set-up of OCKS1 pin. - Page 10 [AKD5538-B] (3-3). Setting for SW803 (Sets AK5538 (U100) ) Switch Name Function default LDO Enable LDOE L: LDO Disable H: LDO Enable Output Data Placement Select. HPFE : High Pass Filter Enable L: HPF Disable H: HPF Enable HPFE/DCKS DCKS : Master Clock Frequency select at DSD Mode (DSD only)
- Page 11 [AKD5538-B] (3-4). Setting for SW804 (Sets AK5538 (U100) ) Switch Name Function default Chip Address0 Pin in 3-wire serial control mode. CAD0-SPI (I2C pin =”L”) Chip Address0 Pin in I2C bus serial control mode. CAD0-I2C (I2C pin =”H”, PS pin =”L”) Chip Address1 Pin in I2C bus or 3-wire serial control mode.
- Page 12 [AKD5538-B] Parallel Mode, ODP pin = “L”, Normal Output (AK5538) PW0 pin PW1 pin PW2 pin Slot 8 Slot 7 Slot 6 Slot 5 Slot 4 Slot 3 Slot 2 Slot 1 SW802-2 SW802-3 SW802-4 All “0” All “0” All “0”...
- Page 13 [AKD5538-B] CKS3 pin CKS2 pin CKS1 pin CKS0 pin MSN pin MCLK fs Range SW804-7 SW804-6 SW804-5 SW804-4 SW802-5 Frequency L(0) 128fs Quad Speed Mode L(0) L(0) L(0) L(0) 108kHz fs 216kHz H(1) L(0) 192fs Quad Speed Mode...
- Page 14 [AKD5538-B] Frequency Mode DSD Sampling Frequency DSDSEL1 pin DSDSEL0 pin SW803-7 SW803-6 fs=32kHz fs=44.1kHz fs=48kHz L(0) L(0) 64fs 2.048MHz 2.8224MHz 3.072MHz default L(0) H(1) 128fs 4.096MHz 5.6448MHz 6.144MHz H(1) L(0) 256fs 8.192MHz 11.2896MHz 12.288MHz Reserved Reserved Reserved H(1) H(1) (8.192MHz) (11.2896MHz)
- Page 15 [AKD5538-B] LRCK BICK MCLK Multiplex Speed TDM1 TDM0 DIF1 DIF0 SDTO Mode Mode SW803-6 SW803-5 SW802-5 SW803-7 SW803-8 Edg. I/O Freq. Freq. L(0) L(0) 24-bit, MSB 128fs 128-1024fs L(0) H(1) 128fs 128-1024fs 24-bit, I L(0) H(1) L(0)
- Page 16 [5] Register control (Serial control) AKD5538-B can be controlled USB control box. Connect board to PC using 10-wire flat cable (PORT700 – serial uP-IF) included with the AKD5538-B. There is a mark on the no.1-pin of the 10-pin Connector. See Figure 3..
- Page 17 [AKD5538-B] [6] Evaluation modes (6-1) ADC Differential Analog Input Connector Channel J200 J201 J300 J301 J400 J401 J500 J501 J200 J201 J300 J301 J400 J401 Table 6-1. Differential Analog Input Connector Example: 8ch ADC 1ch: Cannon Connector = J200, 2ch: Cannon Connector = J201...
- Page 18 [AKD5538-B] (6-3) ADC (Analog Digital) : PCM Mode, Master Mode Toggle switch setting: SW800 SW801 L→H L→H AK5538(U100) : Used AK4118A(U600) : Used Table 6-3-1. Toggle switch setting Start up Control Register Setting 1: Port Reset & Write Default.
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Page 19: Operation Flow
Set-up evaluation board and control software 1. Set up AKD5538-B evaluation board according to above instructions. 2. Connect PC with AKD5538-B evaluation board by USBcontrol box (included in package). 3. Insert the CD-ROM labeled “AKD5538-B Evaluation Kit” into the CD-ROM drive. -
Page 20: Button Functions
[AKD5538-B] Click the “Write” button on right side of Addr 00H register. Figure 7-2. Register set window Input dummy command settings and click “OK” to write dummy command to AK5538. The following No Ack error message will pop up. Click “OK”. -
Page 21: Dialog Boxes
[AKD5538-B] Dialog boxes 1. [All Register Write]: Dialog box to write register setting files Clicking the [All Reg Write] button in the main window opens the dialog box below. Multiple register setting files created by the [Save] button can be set and applied. - Page 22 [AKD5538-B] 2. [Data Read/Write]: Dialog box to manually enter register setting Click the [Data R/W] button in the main window to open the data read/write dialog box. Data manually entered into Data box is written to the specified address. Figure 7-5. Window of [Data R/W]...
- Page 23 [AKD5538-B] Tab Functions 1. [REG]: Register Map Register data is indicated on the register map. Each bit on the register map is a push-button switch. Button DOWN and red lettering indicates “1” and button UP with blue lettering indicates “0”.
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Page 24: Tool]: Testing Tools
[AKD5538-B] 2. [Tool]: Testing Tools This tab screen is for the evaluation testing tool. Click button for each testing tool. Figure 7-7. [Tool] window <KM131000> 2018/10 - 24-... -
Page 25: Analog Input Circuit
[AKD5538-B] Analog input Circuit Analog input Circuit on AKD5538-B Cannon Connectors (J200,J201,J300,J301,J400,J401,J500,J501) : Differential analog input signals for AK5538 Analog input Circuit : 100µ 3.3k Vin- 1.85Vpp Analog In AK5538 AINn+ 9.85Vpp Bias 100p NJM5534 Bias 100µ 3.3k AK5538 AINn- Vin+ µ... -
Page 26: Measurement Results
[AKD5538-B] Measurement Results [Measurement condition] ・ Measurement unit : Audio Precision APx555(No.00760) ・ MCKI : 512fs/256fs/128fs (24.576MHz ) ・ BICK : 64fs ・ fs : 48kHz / 96kHz / 192kHz ・ Bit : 24bit ・ Measurement Mode : ADC @ Slave Mode ・... - Page 27 [AKD5538-B] [Plots] [ SDTO1 ] : Stereo Mode fs = 48 kHz Blue : Lch, Red : Rch AK5538 FFT (-1dBFS Input) AVDD=+3.3V, TVDD=+3.3V, MCLK=512fs, fin=1kHz Figure 9-1-1. FFT (-1dBFS Input) AK5538 FFT ( -60dBFS Input) AVDD=+3.3V, TVDD=+3.3V, MCLK=512fs, fin=1kHz Figure 9-1-2.
- Page 28 [AKD5538-B] fs = 48 kHz AK5538 FFT ( No Signal Input) AVDD=+3.3V, TVDD=+3.3V, MCLK=512fs, fin=1kHz Figure 9-1-3. FFT (No Signal Input) AK5538 THD+N vs. Input Level AVDD=+3.3V, TVDD=+3.3V, MCLK=512fs, fin=1kHz Figure 9-1-4. THD+N vs. Input Level <KM131000> 2018/10 - 28-...
- Page 29 [AKD5538-B] fs = 48 kHz AK5538 THD+N vs. Input Frequency AVDD=+3.3V, TVDD=+3.3V, MCLK=512fs, -1dBFS Input Figure 9-1-5. THD+N vs. Input Frequency AK5538 Linearity AVDD=+3.3V, TVDD=+3.3V, MCLK=512fs, fin=1kHz Figure 9-1-6. Linearity <KM131000> 2018/10 - 29-...
- Page 30 [AKD5538-B] fs = 48 kHz AK5538 Frequency Response AVDD=+3.3V, TVDD=+3.3V, MCLK=512fs, -1dBFS input Figure 9-1-7. Frequency Response AK5538 Crosstalk AVDD=+3.3V, TVDD=+3.3V, MCLK=512fs, -1dBFS Input Figure 9-1-8. Crosstalk <KM131000> 2018/10 - 30-...
- Page 31 [AKD5538-B] Blue : Lch, Red : Rch fs = 96 kHz AK5538 FFT (-1dBFS Input) AVDD=+3.3V, TVDD=+3.3V, MCLK=256fs, fin=1kHz Figure 9-2-1. FFT (-1dBFS Input) AK5538 FFT ( -60dBFS Input) AVDD=+3.3V, TVDD=+3.3V, MCLK=256fs, fin=1kHz Figure 9-2-2. FFT (-60dBFS Input) <KM131000> 2018/10...
- Page 32 [AKD5538-B] fs =96 kHz AK5538 FFT ( No Signal Input) AVDD=+3.3V, TVDD=+3.3V, MCLK=256fs, fin=1kHz Figure 9-2-3. FFT (No Signal Input) AK5538 THD+N vs. Input Level AVDD=+3.3V, TVDD=+3.3V, MCLK=256fs, fin=1kHz Figure 9-2-4. THD+N vs. Input Level <KM131000> 2018/10 - 32-...
- Page 33 [AKD5538-B] fs = 96 kHz AK5538 THD+N vs. Input Frequency AVDD=+3.3V, TVDD=+3.3V, MCLK=256fs, -1dBFS Input Figure 9-2-5. THD+N vs. Input Frequency AK5538 Linearity AVDD=+3.3V, TVDD=+3.3V, MCLK=256fs, fin=1kHz Figure 9-2-6. Linearity <KM131000> 2018/10 - 33-...
- Page 34 [AKD5538-B] fs = 96 kHz AK5538 Frequency Response AVDD=+3.3V, TVDD=+3.3V, MCLK=256fs, -1dBFS Input Figure 9-2-7. Frequency Response AK5538 Crosstalk AVDD=+3.3V, TVDD=+3.3V, MCLK=256fs, -1dBFS Input Figure 9-2-8. Crosstalk <KM131000> 2018/10 - 34-...
- Page 35 [AKD5538-B] Blue : Lch, Red : Rch fs = 192 kHz AK5538 FFT (-1dBFS Input) AVDD=+3.3V, TVDD=+3.3V, MCLK=128fs, fin=1kHz Figure 9-3-1. FFT (-1dBFS Input) AK5538 FFT ( -60dBFS Input) AVDD=+3.3V, TVDD=+3.3V, MCLK=128fs, fin=1kHz Figure 9-3-2. FFT (-60dBFS Input) <KM131000> 2018/10...
- Page 36 [AKD5538-B] fs =192 kHz AK5538 FFT ( No Signal Input) AVDD=+3.3V, TVDD=+3.3V, MCLK=128fs, fin=1kHz Figure 9-3-3. FFT (No Signal Input) AK5538 THD+N vs. Input Level AVDD=+3.3V, TVDD=+3.3V, MCLK=128fs, fin=1kHz Figure 9-3-4. THD+N vs. Input Level <KM131000> 2018/10 - 36-...
- Page 37 [AKD5538-B] fs = 192 kHz AK5538 THD+N vs. Input Frequency AVDD=+3.3V, TVDD=+3.3V, MCLK=128fs, -1dBFS Input Figure 9-3-5. THD+N vs. Input Frequency AK5538 Linearity AVDD=+3.3V, TVDD=+3.3V, MCLK=128fs, fin=1kHz Figure 9-3-6. Linearity <KM131000> 2018/10 - 37-...
- Page 38 [AKD5538-B] fs = 192 kHz AK5538 Frequency Response AVDD=+3.3V, TVDD=+3.3V, MCLK=128fs, -1dBFS Input Figure 9-3-7. Frequency Response AK5538 Crosstalk AVDD=+3.3V, TVDD=+3.3V, MCLK=128fs, -1dBFS Input Figure 9-3-8. Crosstalk <KM131000> 2018/10 - 38-...
- Page 39 [AKD5538-B] REVISION HISTORY Date Manual Board Reason Page Contents (YY/MM/DD) Revision Revision 18/10/29 KM131000 First edition <KM131000> 2018/10 - 39-...
- Page 40 [AKD5538-B] IMPORTANT NOTICE 0. Asahi Kasei Microdevices Corporation (“AKM”) reserves the right to make changes to the information contained in this document without notice. When you consider any use or application of AKM product stipulated in this document (“Product”), please make inquiries the sales office of AKM or authorized distributors as to current status of the Products.
- Page 41 R138 51 BICK/DCLK AVSS2 BICK/DCLK AVSS AVSS2 BICK/DCLK CL100 Cut Land AVSS DVSS - 41- Title Title Title <AKD5538-B> <AKD5538-B> <AKD5538-B> Size Size Size Document Number Document Number Document Number ADC-Main ADC-Main ADC-Main DVSS DVSS Wednesday, September 19, 2018 Wednesday, September 19, 2018...
- Page 42 C229 C234 C235 C237 0.01u 0.01u 100p AVSS AVSS Title Title Title <AKD5538-B> <AKD5538-B> <AKD5538-B> - 42- Size Size Size Document Number Document Number Document Number Analog Input AIN1 & AIN2 Analog Input AIN1 & AIN2 Analog Input AIN1 & AIN2...
- Page 43 C329 C334 C335 C337 0.01u 0.01u 100p AVSS AVSS Title Title Title <AKD5538-B> <AKD5538-B> <AKD5538-B> - 43- Size Size Size Document Number Document Number Document Number Analog Input AIN3 & AIN4 Analog Input AIN3 & AIN4 Analog Input AIN3 & AIN4...
- Page 44 C429 C434 C435 C437 0.01u 0.01u 100p AVSS AVSS Title Title Title <AKD5538-B> <AKD5538-B> <AKD5538-B> - 44- Size Size Size Document Number Document Number Document Number Analog Input AIN5 & AIN6 Analog Input AIN5 & AIN6 Analog Input AIN5 & AIN6...
- Page 45 C529 C534 C535 C537 0.01u 0.01u 100p AVSS AVSS Title Title Title <AKD5538-B> <AKD5538-B> <AKD5538-B> - 45- Size Size Size Document Number Document Number Document Number Analog Input AIN7 & AIN8 Analog Input AIN7 & AIN8 Analog Input AIN7 & AIN8...
- Page 46 DVSS D33V C600 COAX 0.01u TXDATA-SEL DVSS J600 T600 C610 R606 TX-COAX DA-03ZF 0.01u R607 Title Title Title <AKD5538-B> <AKD5538-B> <AKD5538-B> DVSS DVSS - 46- Size Size Size Document Number Document Number Document Number AK4118A-DIT AK4118A-DIT AK4118A-DIT Date: Date: Date:...
- Page 47 PORT700 VREF2 VREF1 R705 CSN-10PIN SCL2 SCL1 CCLK/SCL SCL/CCLK-10PIN CDTI/SDA SDA/CDTI-10PIN SDA2 SDA1 10pin-CTRL DVSS Title Title Title <AKD5538-B> <AKD5538-B> <AKD5538-B> - 47- Size Size Size Document Number Document Number Document Number PC-IF PC-IF PC-IF Date: Date: Date: Sheet Sheet...
- Page 48 HPFE/DCKS CAD1 HPFE/DCKS CAD1 TEST CAD0-I2C TEST CAD0-I2C LDOE CAD0-SPI LDOE CAD0-SPI DVSS DVSS DVSS Title Title Title <AKD5538-B> <AKD5538-B> <AKD5538-B> - 48- Size Size Size Document Number Document Number Document Number LOGIC1 LOGIC1 LOGIC1 Date: Date: Date: Sheet Sheet...
- Page 49 PSN/CAD0-SPI R968 TVDD1 R969 R971 CAD0-I2C/CSN CAD0-I2C C921 0.01u 74VCX00 NAND gate (Low Voltage) DVSS TVDD1 Title Title Title <AKD5538-B> <AKD5538-B> <AKD5538-B> TC7MBL3257 C923 0.01u - 49- Size Size Size Document Number Document Number Document Number LOGIC2 LOGIC2 LOGIC2 DVSS...
- Page 50 D33V JACK C1022 C1019 C1020 T-45(Orange) C1021 J1008 0.01u 0.01u D3.3V DVSS C1023 Title Title Title <AKD5538-B> <AKD5538-B> <AKD5538-B> - 50- Size Size Size Document Number Document Number Document Number Power Supply Power Supply Power Supply DVSS Date: Date: Date:...
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