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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.
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.
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...
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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).
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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.
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.
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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.
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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.
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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)
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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...
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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.
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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...
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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 -...
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