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Asahi KASEI AKD4140-B Manual

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ASAHI KASEI
The AKD4140-B is the evaluation board for the AK4140, BTSC decoder. The AKD4140-B has AKM's D/A
as analog output and AKM's DIT as digital (S/PDIF) output.
Ordering guide
AKD4140-B ---
Digital interface
-S/PDIF
1 channel output (Optical or BNC)
- Serial audio data I/F
1 input/output port (10-pin port)
-Serial control data I/F
1 input/output port (10-pin port)
SIF
*Circuit diagram and PCB layout are attached at the end of this manual.
<KM079203>
GENERAL DESCRIPTION
Evaluation board for AK4140
(A cable for connecting with printer port of IBM-AT compatible PC
and a control software are packed with this. The control software
does not operate on Windows NT.)
FUNCTION
REG
3.3V
AK4140
Control
Figure 1. AKD4140-B Block Diagram
AK4140 Evaluation Board Rev.2
GND
5V
AK4386
(DAC)
AK4103A
(DIT)
- 1 -
[AKD4140-B]
AKD4140-B
LOUT
Analog Out
ROUT
Opt
S/PDIF Out
TX
Serial Data
In/Out
2009/10

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Summary of Contents for Asahi KASEI AKD4140-B

  • Page 1 [AKD4140-B] AKD4140-B AK4140 Evaluation Board Rev.2 GENERAL DESCRIPTION The AKD4140-B is the evaluation board for the AK4140, BTSC decoder. The AKD4140-B has AKM’s D/A as analog output and AKM’s DIT as digital (S/PDIF) output. Ordering guide AKD4140-B --- Evaluation board for AK4140 (A cable for connecting with printer port of IBM-AT compatible PC and a control software are packed with this.

  • Page 2: Evaluation Board Manual

    ASAHI KASEI [AKD4140-B] Evaluation Board Manual Operating sequence (1) Set up the power supply lines. [5V] (Red) = 5V [3.3V] (Orange)=3.3V (open when JP1 is shorted) [GND] (Black) = 0V (2) Set up the switches and jumpers. Refer to the following sections.
  • Page 3 ASAHI KASEI [AKD4140-B] DIP switch (SW2) set-up: -off- means “L” Switch Name Function Default Set-up of MS pin. “L”: Slave mode. “H”: Master mode. CAD1 Set-up of CAD1 pin. CAD0 Set-up of CAD0 pin. Always “OFF” TST2 Set-up of TEST pin. (always “OFF”) Set-up of TEST pin.

  • Page 4: Serial Control

    Serial control The AK4140 can be controlled via the printer port (parallel port) of IBM-AT compatible PC. Connect PORT2 (uP-I/F) with PC by 10-line flat cable packed with the AKD4140-B. Take care of the direction of connector. There Figure 2 is a mark at pin#1.
  • Page 5 1. Set up the AKD4140-B according to the Operating Sequence located on page 2. 2. Connect IBM-AT compatible PC with AKD4140-B by 10-line type flat cable (packed with AKD4140-B). Take care of the direction of 10pin header. (Please install the driver in the CD-ROM when this control software is used on Windows 2000/XP.
  • Page 6 ASAHI KASEI [AKD4140-B] Explanation of each dialog 1. [Write Dialog] : Dialog to write data by mouse operation There are dialogs corresponding to each register. Click the [Write] button corresponding to each register to set up the dialog. If you check the check box, data becomes “H”...

  • Page 7: Save] And [Open]

    ASAHI KASEI [AKD4140-B] 4. [Save] and [Open] 4-1. [Save] Save the current register setting data. The extension of file name is “akr”. (Operation flow) (1) Click [Save] Button. (2) Set the file name and push [Save] Button. The extension of file name is “akr”.
  • Page 8 ASAHI KASEI [AKD4140-B] 5. [Function3 Dialog] The sequence of register setting can be set and executed. (1) Click [F3] Button. (2) Set the control sequence. Set the address, Data and Interval time. Set “-1” to the address of the step where the sequence should be paused.
  • Page 9 ASAHI KASEI [AKD4140-B] 6. [Function4 Dialog] The sequence that is created on [Function3] can be assigned to buttons and executed. When [F4] button is clicked, window Figure 4 as shown in opens. Figure 4. [F4] window <KM079203> 2009/10 - 9 -...
  • Page 10 ASAHI KASEI [AKD4140-B] 6-1. [OPEN] buttons on left side and [START] buttons (1) Click [OPEN] button and select the sequence file (*.aks). Figure 5 The sequence file name is displayed as shown in Figure 5. [F4] window(2) (2) Click [START] button, then the sequence is executed.
  • Page 11 ASAHI KASEI [AKD4140-B] 7. [Function5 Dialog] The register setting that is created by [SAVE] function on main window can be assigned to buttons and executed. When Figure 6 [F5] button is clicked, the following window as shown in opens. Figure 6. [F5] window 7-1.

  • Page 12: Measurement Results

    ASAHI KASEI [AKD4140-B] MEASUREMENT RESULTS [Measurement condition] • Measurement unit : Audio Precision, System Two Cascade • MCLK : 256fs • SCLK : 64fs • fs : 48kHz • Bit : 16bit • Power Supply : AVDD = DVDD = 3.3V •...

  • Page 13: Performance Plots

    ASAHI KASEI [AKD4140-B] Performance Plots STEREO: Figure 1. THD+N vs. Input Level (1kHz) Figure 2. THD+N vs. Input Frequency (-15dB) Figure 3. Linearity (1kHz) Figure 4. Frequency Response (-15dB) Figure 5. Crosstalk (Left Channel = Off, Right Channel = -15dB) Figure 6.
  • Page 14 ASAHI KASEI [AKD4140-B] [Plot: STEREO] 04/19/06 17:29:47 -100 Figure 1. THD+N vs. Input Level (1kHz) 04/19/06 17:37:04 Figure 2. THD+N vs. Input Frequency (-15dB) < KM079203> 2009/10 - 14 -...
  • Page 15 ASAHI KASEI [AKD4140-B] 04/19/06 17:41:25 -100 -100 Figure 3. Linearity (1kHz) 04/19/06 17:44:51 Figure 4. Frequency Response (-15dB) < KM079203> 2009/10 - 15 -...
  • Page 16 ASAHI KASEI [AKD4140-B] 04/19/06 17:46:33 CROSSTALK Figure 5. Crosstalk (Left Channel = Off, Right Channel = -15dB) 04/19/06 17:48:52 -100 -120 -140 Figure 6. FFT Plot (-1dB) < KM079203> 2009/10 - 16 -...
  • Page 17 ASAHI KASEI [AKD4140-B] 04/19/06 17:49:52 -100 -120 -140 Figure 7. FFT Plot (-60dB) 04/19/06 17:50:30 -100 -120 -140 Figure 8. FFT Plot (no input) < KM079203> 2009/10 - 17 -...
  • Page 18 ASAHI KASEI [AKD4140-B] [Plot: MONO] 04/19/06 17:53:32 -100 Figure 9. THD+N vs. Input Level (1kHz) 04/19/06 17:54:23 Figure 10. THD+N vs. Input Frequency (-15dB) < KM079203> 2009/10 - 18 -...
  • Page 19 ASAHI KASEI [AKD4140-B] 04/19/06 17:59:38 -100 -100 Figure 11. Linearity (1kHz) 04/19/06 18:22:16 Figure 12. Frequency Response (-15dB) < KM079203> 2009/10 - 19 -...
  • Page 20 ASAHI KASEI [AKD4140-B] 04/19/06 18:04:41 -100 -120 -140 Figure 13. FFT Plot (-1dB) 04/19/06 18:04:06 -100 -120 -140 Figure 14. FFT Plot (-60dB) < KM079203> 2009/10 - 20 -...
  • Page 21 ASAHI KASEI [AKD4140-B] 04/19/06 18:05:06 -100 -120 -140 Figure 15. FFT Plot (no input) [Plot: SAP] 04/19/06 18:08:57 -100 -100 Figure 16. THD+N vs. Input Level (1kHz) < KM079203> 2009/10 - 21 -...
  • Page 22 ASAHI KASEI [AKD4140-B] 04/19/06 18:10:36 T T T -100 Figure 17. THD+N vs. Input Frequency (-15dB) 04/19/06 18:13:17 -100 -100 Figure 18. Linearity (1kHz) < KM079203> 2009/10 - 22 -...
  • Page 23 ASAHI KASEI [AKD4140-B] 04/19/06 18:15:23 Figure 19. Frequency Response (-15dB) 04/19/06 18:17:12 -100 -120 -140 Figure 20. FFT Plot (-1dB) < KM079203> 2009/10 - 23 -...
  • Page 24 ASAHI KASEI [AKD4140-B] 04/19/06 18:17:59 -100 -120 -140 Figure 21. FFT Plot (-60dB 04/19/06 18:18:25 -100 -120 -140 Figure 22. FFT Plot (no input) < KM079203> 2009/10 - 24 -...

  • Page 25: Revision History

    These products and their specifications are subject to change without notice. When you consider any use or application of these products, please make inquiries the sales office of Asahi Kasei EMD Corporation (AKEMD) or authorized distributors as to current status of the products.
  • Page 26 TST1 TSTI2 TSTI1 AK4140 AK4140 CAD1 CAD0 TST2 TST1 TSTI2 TSTI1 Title Title Title AKD4140-B AKD4140-B AKD4140-B Size Size Size Document Number Document Number Document Number AK4140 AK4140 AK4140 Monday, October 05, 2009 Monday, October 05, 2009 Monday, October 05, 2009...
  • Page 27 AK4386 DIT_DIF0 DIT_CKS0 DIT_CKS1 DAC_DIF0 DAC/DIT DAC/DIT DIT_DIF0 DIT_CKS0 DIT_CKS1 DAC_DIF0 Title Title Title AKD4140-B AKD4140-B AKD4140-B Size Size Size Document Number Document Number Document Number DIT/DAC DIT/DAC DIT/DAC Monday, October 05, 2009 Monday, October 05, 2009 Monday, October 05, 2009...
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