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ASAHI KASEI
The AKD4569 is an evaluation board for the AK4569, the Audio CODEC with IPGA and HP-amp. The
AKD4569 can evaluate A/D and D/A in addition to A/D to D/A loopback mode. The AKD4569 also has the
digital audio interface and can achieve the interface with digital audio systems via opt-connector.
n Ordering guide
AKD4569
---
o Compatible with 2 types of interface
- DIR(AK4116)/DIT(AK4114) with optical input/output
- Direct interface with AKM's A/D,D/A converter evaluation boards by 10pin header
o 10pin header for serial control interface
AINL
AINR
LIN/RIN/MIN
MOUT
HPL
Headphone
HPR
* Circuit diagram and PCB layout are attached at the end of this manual.
<KM074000>
Evaluation board Rev.A for AK4569
GENERAL DESCRIPTION
Evaluation board for AK4569
(Cable for connecting with printer port of IBM-AT compatible PC and control
software are packed with this. This control software does not support Windows NT.)
FUNCTION
+3V
GND
AK4569
Figure 1. AKD4569 Block Diagram
10pin Header
AK4116(DIR)
AK4114(DIT)
10pin Header
- 1 -
[AKD4569]
AKD4569
Control Data
EXTCLK
Opt In
Opt Out
DSP
2004/02

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Summary of Contents for AKM AKD4569

  • Page 1 The AKD4569 is an evaluation board for the AK4569, the Audio CODEC with IPGA and HP-amp. The AKD4569 can evaluate A/D and D/A in addition to A/D to D/A loopback mode. The AKD4569 also has the digital audio interface and can achieve the interface with digital audio systems via opt-connector.
  • Page 2: Operation Sequence

    The AK4569 can be controlled via the printer port (parallel port) of IBM-AT compatible PC. Connect PORT1(uP-I/F) with PC by 10-line CCLK flat cable packed with the AKD4569. CDTI Take care of the direction of connector. There is a mark at pin#1.
  • Page 3: Evaluation Mode

    ASAHI KASEI [AKD4569] n Evaluation mode Applicable evaluation modes (1) Loopback mode (2) Evaluation of A/D part (3) Evaluation of D/A part (Default) (4) All interface signals including master clock are fed externally. (1),(2),(4) Analog Input (3),(4) Analog Input Digital Output...
  • Page 4 AK4114 (DIT) generates audio bi-phase signal from received data and which is output through optical connector (PORT4: TOTX141). It is possible to connect AKM’s D/A converter evaluation boards or the digital-amplifier which equips DIR input. SW3 is used to set the interface format and clock mode of AK4114 (see DIP-SW set-up).
  • Page 5 ASAHI KASEI [AKD4569] n DIP-SW set-up (setup for AK4114) Name Default Contents DIF0 AK4114 interface format (See Table 4.) OCKS1 AK4114 clock mode (See Table 5.) Don’t care Table 3. SW3 setup (1=ON, 0=OFF) No.1 Format (DIF0) 24bit, Left jutified Default Table 4.
  • Page 6: Operation Flow

    1. Set up the AKD4569 according to above mentioned setting. 2. Connect IBM-AT compatible PC with AKD4569 by 10-line type flat cable (packed with AKD4569). Take care of the direction of 10pin header. (Please install the driver in the floppy-disk when this control software is used on Windows 2000/XP.
  • Page 7 ASAHI KASEI [AKD4569] n Explanation of each dialog 1. [Function1 Dialog] : Dialog to write data by keyboard operation Address Box: Input register address in 2 figures of hexadecimal. Data Box: Input register data in 2 figures of hexadecimal. If you want to write the input data to AK4569, click “OK” button. If not, click “Cancel” button.
  • Page 8 1. Set up the AKD4569 according to above mentioned setting. 2. Connect IBM-AT compatible PC with AKD4569 by 10-line type flat cable (packed with AKD4569). Take care of the direction of 10pin header. (Please install the driver in the floppy-disk when this control software is used on Windows 2000/XP.
  • Page 9: Measurement Results

    ASAHI KASEI [AKD4569] MEASUREMENT RESULTS 1) ADC part [Measurement condition] • Measurement unit : Audio Precision System two Cascade • MCLK : 256fs • BICK : 64fs • fs : 48kHz • BW : 10Hz∼20kHz • Bit : 20bit • Power Supply : AVDD=DVDD=HVDD=3V •...
  • Page 10 ASAHI KASEI [AKD4569] n Plots (1) ADC part [Measurement condition] • Measurement unit : Audio Precision, System two, Cascade • MCLK : 256fs • BICK : 64fs • fs : 48kHz • BW : 10Hz∼20kHz • Bit : 20bit • Power Supply : AVDD=DVDD=HVDD=3V •...
  • Page 11 ASAHI KASEI [AKD4569] (ADC) AK4569 ADC FFT (fs=44.1kHz, fin=1kHz, -1dBr Input) FFT point=16384, Avg=8, window=Equiripple -100 -120 -140 -160 -180 Color Line Style Thick Data Axis Solid Fft.Ch.1 Ampl Left Blue Solid Fft.Ch.2 Ampl Left last.at2c Figure 4. FFT (1kHz, -1dBFS input) FFT points=16384, Avg=8, Window=Equiripple AK4569 ADC FFT (fs=44.1kHz, fin=1kHz, -60dBr...
  • Page 12 ASAHI KASEI [AKD4569] (ADC) AK4569 ADC FFT (No signal Input) FFT point=16384, Avg=8, window=Equiripple -100 -120 -140 -160 -180 Color Line Style Thick Data Axis Solid Fft.Ch.1 Ampl Left Blue Solid Fft.Ch.2 Ampl Left last.at2c Figure 6. FFT (Noise floor) FFT points=16384, Avg=8, Window=Equiripple <KM074000>...
  • Page 13 ASAHI KASEI [AKD4569] (ADC) AK4569 DAC THD+N vs.Input Level (fs=44.1kHz, fin=1kHz) -62.5 -67.5 -72.5 -77.5 -82.5 -87.5 -92.5 -97.5 -100 -120 -110 -100 Color Line Style Thick Data Axis Solid DSP Anlr.THD+N Ampl A Left Blue Solid DSP Anlr.THD+N Ampl B Left last.at2c...
  • Page 14 ASAHI KASEI [AKD4569] (ADC) AK4569 DAC Linearity (fs=44.1kHz, fin=1kHz) -100 -110 -120 -120 -110 -100 Color Line Style Thick Data Axis Solid DSP Anlr.Bandpass A Left Blue Solid DSP Anlr.Bandpass B Left last.at2c Figure 9. Linearity (fin=1kHz) AK4569 ADC Frequency Response (fs=48kHz, -1dBFS Input) -0.2...
  • Page 15 ASAHI KASEI [AKD4569] (ADC) AK4569 ADC Crosstalk (fs=44.1kHz, fin=1kHz, -1dBFS Input) Upper@1kHz;Lch--->Rch, Lower@1kHz;Rch--->Lch -100 -105 -110 -115 -120 -125 -130 Color Line Style Thick Data Axis Solid DSP Anlr.Crosstalk A Left Magenta Solid DSP Anlr.Crosstalk B Left last.at2c Figure 11. Crosstalk (Input Level=-1dBFS) <KM074000>...
  • Page 16 ASAHI KASEI [AKD4569] (2) DAC part (HPL, HPR pins) [Measurement condition] • Measurement unit : Audio Precision, System two, Cascade • MCLK : 256fs • BICK : 64fs • fs : 48kHz • BW : 10Hz∼20kHz • Bit : 20bit •...
  • Page 17 ASAHI KASEI [AKD4569] (DAC) AK4569 DAC FFT (fs=44.1kHz, fin=1kHz, 0dBFS Input) FFT point=16384, Avg=8, window=Equiripple -100 -120 -140 -160 Color Line Style Thick Data Axis Solid Fft.Ch.1 Ampl Left Blue Solid Fft.Ch.2 Ampl Left last.at2c Figure 12. FFT (1kHz, 0dBFS input) FFT points=16384, Avg=8, Window=Equiripple AK4569 DAC FFT (fs=44.1kHz, fin=1kHz, -60dBFS Input)
  • Page 18 ASAHI KASEI [AKD4569] (DAC) AK4569 DAC FFT (No data Input) FFT point=16384, Avg=8, window=Equiripple -100 -120 -140 -160 Color Line Style Thick Data Axis Solid Fft.Ch.1 Ampl Left Blue Solid Fft.Ch.2 Ampl Left last.at2c Figure 14. FFT (Noise floor) FFT points=16384, Avg=8, Window=Equiripple...
  • Page 19 ASAHI KASEI [AKD4569] (DAC) AK4569 DAC THD+N vs. Input Lever (fs=44.1kHz, fin=1kHz) -100 -140 -130 -120 -110 -100 dBFS Color Line Style Thick Data Axis Solid Anlr.THD+N Ampl Left Blue Solid Anlr.THD+N Ampl Left last.at2c Figure 16. THD+N vs Input Level (fin=1kHz) AK4569 DAC THD+N vs.
  • Page 20 ASAHI KASEI [AKD4569] (DAC) AK4569 DAC Linearity (fs=44.1kHz,fin=1kHz) -100 -110 -120 -120 -110 -100 dBFS Color Line Style Thick Data Axis Solid Anlr.Bandpass Left Blue Solid Anlr.Bandpass Left last.at2c Figure 18. Linearity (fin=1kHz) AK4569 DAC Frequency Response (fs=44.1kHz,Input Level=0dB) +0.5 +0.4...
  • Page 21 ASAHI KASEI [AKD4569] (DAC) AK4569 DAC Crosstalk (fs=44.1kHz, Input Level=0dB) Upper@1kHz Lch--->Rch, Lower@1kHz Rch--->Lch -100 -110 -120 Color Line Style Thick Data Axis Solid Anlr.Crosstalk Left Blue Solid Anlr.Crosstalk Left last.at2c Figure 20. Crosstalk (Input Level=0dBFS) <KM074000> 2004/02 - 21 -...
  • Page 22: Important Notice

    • 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...
  • Page 23 (+3V for AK4116, AK4114, Logic) (+3V) (+3V) (+5V) DVDD HVDD 3V Regulator JP13 JP15 PORT2 + C29 + C30 + C28 0.1u DVDD-VD JP14 HVDD-DVDD 0.1u 0.1u TORX141 EXTCLK 74HC14 Title AKD4569 (open) Size Document Number AK4569 Friday, February 20, 2004 Date: Sheet...
  • Page 24 XTL1 BICK BICK SDTO 0.1u 4114_PDN Normally H PORT3 MCLK LRCK MCLK BICK BICK LRCK LRCK 0.1u SDTI SDTI SDTO Logic_3V SDTO 0.1u Logic_3V PORT4 Logic_3V TOTX141 0.1u Title AKD4569 Size Document Number Interface Friday, February 20, 2004 Date: Sheet...