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AsahiKASEI AK5704 Manual

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The AKD5704-C is an evaluation board for the AK5704, 4 channel 32-bit ADC with built-in PLL and
microphone amplifier. The AKD5704-C also has the digital audio interface and can achieve the interface
with digital audio systems via optical connector or I
◼ Ordering Guide
AKD5704-C
• Mini jack for analog input
• Digital audio interface
- Optical output connector for S/PDIF
- Header pin for external interface
• USB port for serial control interface
[Main Board]
AIN2B-
J101
Mini
Jack
AIN2B
AIN2B+/DMCLK2
J102
AIN2A-
Mini
AIN2A
Jack
AIN2A+/DMDAT2
J103
AIN1B-
Mini
AIN1B
Jack
AIN1B+/DMCLK1
J104
AIN1A-
Mini
AIN1A
Jack
AIN1A+/DMDAT1
[KM137900]
GENERAL DESCRIPTION
---
AK5704 Evaluation Board
(Control software is included in this package.)
J402
0V
GND
T402
REG
[+3.3V]
VSS1/2
AVDD
AK5704
U101
Figure 1. AKD5704-C Block Diagram
AK5704 Evaluation Board Rev.0
2
S interface.
FUNCTION
J401
5V
VDD5V
T403
REG
[+1.8V]
U302
Level
TVDD
Shifter
2
I
C
U202
MCKI
Level
BCLK
Shifter
LRCK
MCKO
Level
SDTO1
Shifter
SDTO2
U203
- 1 -
AKD5704-C
T401
REG
[+3.3V]
U301
PIC18F4550
(USB Serial IF)
U201
AK4118A
(S/PDIF)
X'tal
10-pin
Header
PORT202
AUDIO-IF
USB401
USB
Type-C
PORT201
OPT-OUT
TOS
LINK
2023/11

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  • Page 1 AK5704 Evaluation Board Rev.0 GENERAL DESCRIPTION The AKD5704-C is an evaluation board for the AK5704, 4 channel 32-bit ADC with built-in PLL and microphone amplifier. The AKD5704-C also has the digital audio interface and can achieve the interface with digital audio systems via optical connector or I S interface.

  • Page 2: Power Supply Setting

    [AKD5704-C] ◼ Power Supply Setting (1) In case of supplying the power from USB <default> Jumper pins setting JP401 JP402 VDD-SEL AVDD-SEL When using 3.3 V VDD5V USB5V 3.3V 1.8V AVDD-SEL When using 1.8 V 3.3V 1.8V → Shorted by jumper pin Power supply connection Table 1.

  • Page 3: Evaluation Mode

    JP104 JP103 JP102 JP101 1AGND 1BGND 2AGND 2BGND → Shorted by jumper pin Table 3. Connection Pin for the Digital Microphone Test Pin AK5704 Pin Name Corresponding ADC TP104 DMDAT1 AIN1A+/DMDAT1 ADC1 TP103 DMCLK1 AIN1B+/DMCLK1 ADC1 TP102 DMDAT2 AIN2A+/DMDAT2 ADC2...

  • Page 4: Output Settings

    When using S/PDIF optical output (OPT-OUT [PORT201]) <default> Connect an optical digital cable to PORT201. System clock of the AK5704 should be set to external slave mode and BCLK = 64fs. A crystal of 24.576 MHz is mounted on X201.
  • Page 5 In case of PLL Master Mode (2-1) When the master clock is input to the MCLK pin of PORT202, BCLK and LRCK are generated by PLL of the AK5704, and then SDTO1 and SDTO2 are output. 1.MCLK 1.MCLK...
  • Page 6 [AKD5704-C] In case of External Master Mode (2-3) When the master clock is input to the MCLK pin of PORT202, the divided BCLK and LRCK are output from the AK5704, and then SDTO1 and SDTO2 are output. 1.MCLK 2.MCKO 1.MCLK Connect 3.BCLK...

  • Page 7: Other Setting

    [AKD5704-C] Other setting SW301 : Reset for the AK5704 and the AK4118A CL101 (CAD) : Setting of the AK5704 CAD pin Open: I C Chip Address = 0 <default> Short: I C Chip Address = 1 [KM137900] 2023/11 - 7 -...
  • Page 8 PC ang the USB cable. After that restart the control software. 5. Press the [PDN: L] button and confirm that the display changes to [PDN: H]. The reset of the AK5704 and the AK4118A is released.

  • Page 9: Operation Overview

    C-bus. 3. [Write Default] : AK5704 register initialization. 4. [All Read] : Execute read commands for all registers of the AK5704 and display in RegMap. 5. [All Write] : Execute write commands for all AK5704 registers displayed. 6. [Script Save] : Save the script with the current setting.

  • Page 10: Tab Functions

    [AKD5704-C] ◼Tab Functions (1) [MainFunc] Tab: Function Control Clicking on each block in the window opens the settings window for that block. The displayed selector can be selected directly. With the three function buttons at the top of the window, execute the sequence processing of the function described on the button.
  • Page 11 [AKD5704-C] ADC, MIC Gain Setting (1-1) Clicking the MicGain block on the [MainFunc] window opens the [ADC, MIC Gain Setting] window. Power-up/down of MIC-Amp, ADC, Digital MIC and related settings are controlled. AVDD internal operation mode on the [MainFunc] window should be set before power-up of the ADC. Figure 9.
  • Page 12 [AKD5704-C] Digital Function Setting (1-2) Clicking the Delay, HPF, MIC Sensitivity Correction block on the [MainFunc] window opens the [Digital Function Setting] window. Delay, HPF and MIC Sensitivity settings are controlled. Figure 10. [Digital Function Setting] Window [KM137900] 2023/11 - 12 -...
  • Page 13 [AKD5704-C] Mixer, HPF, LPF Setting (1-3) Clicking the MIX1, MIX2, HPF1/LPF1 or HPF2/LPF2 block on the [MainFunc] window opens the [Mixer, HPF, LPF Setting] window. Power-up/down of Programmable Filter (HPF, LPF), Mixer and related settings are controlled. Figure 11. [Mixer, HPF, LPF Setting] Window PFTHR1/2 bits and PFSDO1/2 bits can be switched directly from the [MainFunc] window.

  • Page 14: Alc Setting

    [AKD5704-C] ALC Setting (1-4) Clicking the ALC1 or ALC2 block on the [MainFunc] window opens the [ALC Setting] window. Power-up/down of Programmable Filter (HPF, LPF) and ALC settings are controlled. Figure 12. [ALC Setting] Window [KM137900] 2023/11 - 14 -...
  • Page 15 [AKD5704-C] VAD Setting (1-5) Clicking the VAD or VAD Delay block on the [MainFunc] window opens the [VAD Setting] window. Power-up/down of VAD and related settings are controlled. Figure 13. [VAD Setting] Window VADSEL bit, VAS[2:0] bits, VBS[2:0] bits and VADOE bit can be switched directly from the [MainFunc] window. [KM137900] 2023/11 - 15 -...
  • Page 16 [AKD5704-C] Audio I/F Setting (1-6) Clicking the Audio I/F block on the [MainFunc] window opens the [Audio I/F Setting] window. Audio I/F setting are controlled. Figure 14. [Audio I/F Setting] Window [KM137900] 2023/11 - 16 -...
  • Page 17 [AKD5704-C] (2) [Script] Tab: Script Function This is the tab for executing the script file. If the [Refer] button is clicked, and the script file is selected, the program is executed automatically. By clicking the [Repeat] button, the selected script file will be executed again. Figure 15.
  • Page 18 [AKD5704-C] (3) [RegMap] Tab: Register Map This tab is for register read and write. Each bit of the register map is a push button, and the register is updated at the click timing. “1”: Indicate in red letters. “0”: Indicate in blue letters. The register which are not defined in the datasheet are indicated “---”.
  • Page 19 [AKD5704-C] MEASUREMENT RESULTS [Conditions] - Measurement Unit : Audio Precision APX555 audio analyzer - Master Clock : 256fs (12.288 MHz@48 kHz, 24.576 MHz@96 kHz), 128fs (24.576 MHz@192 kHz) - Sampling Frequency : 48 kHz, 96 kHz, 192 kHz - Resolution : 24 bit - Measurement Mode : External slave mode...
  • Page 20 [AKD5704-C] REVISION HISTORY Date Manual Board Reason Page Contents (yy/mm/dd) Revision Revision 23/11/30 KM137900 First Edition 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 21 TP116 SDTO1 AVSS R109 SDTO1 100k TP117 WINTN WINTN TP118 TP119 Title Title Title AK5704-C Evaluation Board AK5704-C Evaluation Board AK5704-C Evaluation Board - 21- Size Size Size Document Number Document Number Document Number USBGND GND AVSS DVSS DGND AK5704...
  • Page 22 8: GND 7: SDTO1 6: GND 5: LRCK 4: GND 3: BCLK 2: MCKO 1: MCLK Title Title Title AK5704-C Evaluation Board AK5704-C Evaluation Board AK5704-C Evaluation Board - 22- Size Size Size Document Number Document Number Document Number Date:...
  • Page 23 RC0/T1OSO/T13CKI RD4/SPP4 20MHz NC/ICRST_N/ICVpp RC7/RX/DT/SDO C311 0.47u C312 1u PIC-VDD DGND Title Title Title AK5704-C Evaluation Board AK5704-C Evaluation Board AK5704-C Evaluation Board - 23- Size Size Size Document Number Document Number Document Number Control I/F Control I/F Control I/F...
  • Page 24 DVSS DGND USBGND AVSS DVSS DGND USBGND GND AVSS DVSS DGND Title Title Title AK5704-C Evaluation Board AK5704-C Evaluation Board AK5704-C Evaluation Board Size Size Size Document Number Document Number Document Number - 24- Power Supply Power Supply Power Supply...
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