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AKM AKD4556-B Manual

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ASAHI KASEI
The AKD4556-B is an evaluation board for the AK4556, the 24Bit A/D & D/A converter. The AKD4556-B
can evaluate A/D converter and D/A converter separately in addition to loopback mode (A/D→D/A). The
AKD4556-B also has the digital audio interface and can achieve the interface with digital audio systems
via opt-connector.
Ordering guide
AKD4556-B
---
Digital interface
-
DIT (AK4114): optical or BNC
-
DIR (AK4114): optical or BNC
10pin header for serial control interface
LOUT
ROUT
* Circuit diagram and PCB layout are attached at the end of this manual.
<KM082901>
GENERAL DESCRIPTION
Evaluation board for AK4556
FUNCTION
5V
Regulator
LIN
RIN
AK4556
Figure 1. AKD4556-B Block Diagram
AK4556 Evaluation board Rev.1
GND
AK4114
(DIR&DIT)
- 1 -
[AKD4556-B]
AKD4556-B
BNC
Opt In
Opt Out
BNC
10pin Header
DSP
2006/08

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Summary of Contents for AKM AKD4556-B

  • Page 1 AK4556 Evaluation board Rev.1 GENERAL DESCRIPTION The AKD4556-B is an evaluation board for the AK4556, the 24Bit A/D & D/A converter. The AKD4556-B can evaluate A/D converter and D/A converter separately in addition to loopback mode (A/D→D/A). The AKD4556-B also has the digital audio interface and can achieve the interface with digital audio systems via opt-connector.
  • Page 2 ASAHI KASEI [AKD4556-B] Evaluation Board Manual Operation sequence 1) Set up the power supply lines [5V] (red) = +5V (3.3V is supplied to the AK4556 , the AK4114 , and the Digital Logic via the regulator.) [GND] (black) = 0V 2) Set up the evaluation modes, jumper pins and DIP switch.
  • Page 3 ASAHI KASEI [AKD4556-B] Evaluation modes In case of the AK4556 evaluation using the AK4114, it is necessary to correspond to the audio interface format. RX and TX use BNC connector at evaluation of Quad Speed with the AK4114. Applicable evaluation modes (1) Evaluation of Loopback mode using the AK4114 <default>...
  • Page 4 ASAHI KASEI [AKD4556-B] (2) Evaluation of DAC using DIR of the AK4114 DIR generates MCLK , BCLK , LRCK , and SDATA from received data via optical (PORT1) or BNC connector (J6). (2-1) Slave mode JP1 : Short JP2 : Short...
  • Page 5 ASAHI KASEI [AKD4556-B] (3) Evaluation of ADC using DIT of the AK4114 Optical (PORT2) or BNC (J7) connector is used. DIT generates audio bi-phase signal. (3-1) Slave mode (3-1-1) When using the AK4114’s PLL Optical (PORT1) or BNC (J6) connector provides access to the bi-phase signal generated by the AK4114.
  • Page 6 ASAHI KASEI [AKD4556-B] (3-2) Master mode (3-2-1) When using the AK4114’s PLL Optical (PORT1) or BNC (J6) connector provides access to the bi-phase signal generated by the AK4114. JP1 : Short JP2 : Short JP3,JP4 : OPT or BNC SW3-1 (XTL1) : H...
  • Page 7 ASAHI KASEI [AKD4556-B] (4) All interface signals including master clock are fed externally. PORT3 is used. (4-1) Slave mode JP1 : Open JP2 : Open SW3-3 (DIF1) : H SW3-4 (DIF0) : H In slave mode , the AK4556’s sampling speed and audio interface format is set by SW2. See Table 1 on page 8 for possible mode setting.
  • Page 8 ASAHI KASEI [AKD4556-B] Setting of DIP SW 1. Evaluation mode setting of SW2 (AK4556) Name Default DEM1 DEM0 CKS3 CKS2 CKS1 CKS0 Table 1 . SW2 AK4556 Mode Setting DEM1 DEM0 Mode 44.1kHz 48kHz 32kHz Table 2 . De-emphasis filter control...
  • Page 9 ASAHI KASEI [AKD4556-B] 2. Evaluation mode setting of SW3 (AK4114) Name Default XTL1 XTL0 DIF1 DIF0 OCKS1 OCKS0 Table 4 . SW3 AK4114 Mode Setting XTL1 XTL0 X’tal Frequency 11.2896 MHz 12.288 MHz 24.576 MHz Table 5 . Reference X’tal Frequency...
  • Page 10 ASAHI KASEI [AKD4556-B] Analog input circuit Figure 2. Analog Input Circuit Analog output circuit ROUT ROUT LOUT LOUT Figure 3. Analog Output Circuit <KM082901> 2006/08 - 10 -...

  • Page 11: Measurement Results

    ASAHI KASEI [AKD4556-B] MEASUREMENT RESULTS [Measurement condition] ● Measurement unit: Audio Precision, System two Cascade ● Slave Mode ● BCLK: 64fs ● Bit: 24bit ● Measurement Frequency: Nomal Speed : 20Hz ∼ 20kHz , Double & Quad Speed : 20Hz ∼ 40kHz ●...
  • Page 12 ASAHI KASEI [AKD4556-B] [Plots] fs=48kHz AK4556 ADC FFT fs=48kHz , -1dB Input -100 -110 -120 -130 -140 -150 -160 -170 -180 Figure 4. FFT (fin=1kHz , Input Level=-1dBFS) AK4556 ADC FFT fs=48kHz , -60dB Input -100 -110 -120 -130 -140...
  • Page 13 ASAHI KASEI [AKD4556-B] AK4556 ADC FFT fs=48kHz , No Signal -100 -110 -120 -130 -140 -150 -160 -170 -180 Figure 6. FFT (fin=1kHz , No Signal) AK4556 ADC THD + N vs Input Level fs=48kHz -100 -105 -110 -115 -120...
  • Page 14 ASAHI KASEI [AKD4556-B] AK4556 ADC THD + N vs Input Frequency fs=48kHz -100 -105 -110 -115 -120 Figure 8. THD+N vs Input Frequency (Input Level =-1dBFS) AK4556 ADC Linearity fs=48kHz -100 -110 -120 -120 -110 -100 Figure 9. Linearity (fin=1kHz) <KM082901>...
  • Page 15 ASAHI KASEI [AKD4556-B] AK4556 ADC Freqency Response fs=48kHz -0.2 -0.4 -0.6 -0.8 -1.2 -1.4 -1.6 -1.8 Figure 10. Frequency Response AK4556 ADC Crosstalk fs=48kHz -100 -105 -110 -115 -120 -125 -130 -135 -140 -145 -150 Figure 11. Crosstalk <KM082901> 2006/08...
  • Page 16 ASAHI KASEI [AKD4556-B] fs=96kHz AK4556 ADC FFT fs=96kHz , -1dB Input -100 -110 -120 -130 -140 -150 -160 -170 -180 Figure 12. FFT (fin=1kHz , Input Level=-1dBFS) AK4556 ADC FFT fs=96kHz , -60dB Input -100 -110 -120 -130 -140 -150...
  • Page 17 ASAHI KASEI [AKD4556-B] AK4556 ADC FFT fs=96kHz , No Signal -100 -110 -120 -130 -140 -150 -160 -170 -180 Figure 14. FFT (fin=1kHz , No Signal) AK4556 ADC THD + N vs Input Level fs=96kHz -100 -105 -110 -115 -120...
  • Page 18 ASAHI KASEI [AKD4556-B] AK4556 ADC THD + N vs Input Frequency fs=96kHz -100 -105 -110 -115 -120 Figure 16. THD+N vs Input Frequency (Input Level =-1dBFS) AK4556 ADC Linearity fs=96kHz -100 -110 -120 -120 -110 -100 Figure 17. Linearity (fin=1kHz) <KM082901>...
  • Page 19 ASAHI KASEI [AKD4556-B] AK4556 ADC Freqency Response fs=96k -0.2 -0.4 -0.6 -0.8 -1.2 -1.4 -1.6 -1.8 Figure 18. Frequency Response AK4556 ADC Crosstalk fs=96kHz -100 -105 -110 -115 -120 -125 -130 -135 -140 -145 -150 Figure 19. Crosstalk <KM082901> 2006/08...
  • Page 20 ASAHI KASEI [AKD4556-B] fs=192kHz AK4556 ADC FFT fs=192kHz , -1dB Input -100 -110 -120 -130 -140 -150 -160 -170 -180 Figure 20. FFT (fin=1kHz , Input Level=-1dBFS) AK4556 ADC FFT fs=192kHz , -60dB Input -100 -110 -120 -130 -140 -150...
  • Page 21 ASAHI KASEI [AKD4556-B] AK4556 ADC FFT fs=192kHz , No Signal -100 -110 -120 -130 -140 -150 -160 -170 -180 Figure 22. FFT (fin=1kHz , No Signal) AK4556 ADC THD + N vs Input Level fs=192kHz -100 -105 -110 -115 -120...
  • Page 22 ASAHI KASEI [AKD4556-B] AK4556 ADC THD + N vs Input Frequency fs=192kHz -100 -105 -110 -115 -120 Figure 24. THD+N vs Input Frequency (Input Level =-1dBFS) AK4556 ADC Linearity fs=192kHz -100 -110 -120 -120 -110 -100 Figure 25. Linearity (fin=1kHz) <KM082901>...
  • Page 23 ASAHI KASEI [AKD4556-B] AK4556 ADC Freqency Response fs=192k -0.2 -0.4 -0.6 -0.8 -1.2 -1.4 -1.6 -1.8 Figure 26. Frequency Response AK4556 ADC Crosstalk fs=192kHz -100 -105 -110 -115 -120 -125 -130 -135 -140 -145 -150 Figure 27. Crosstalk <KM082901> 2006/08...
  • Page 24 ASAHI KASEI [AKD4556-B] fs=48kHz AK4556 DAC FFT fs=48kHz 0dB Input -100 -110 -120 -130 -140 -150 -160 -170 -180 Figure 28. FFT (fin=1kHz , Input Level=0dBFS) AK4556 DAC FFT fs=48kHz , Notch Filter -100 -110 -120 -130 -140 -150 -160...
  • Page 25 ASAHI KASEI [AKD4556-B] AK4556 DAC FFT fs=48kHz , -60dB Input -100 -110 -120 -130 -140 -150 -160 -170 -180 Figure 30. FFT (fin=1kHz , Input Level=-60dBFS) AK4556 DAC FFT fs=48kHz , No Signal -100 -110 -120 -130 -140 -150 -160...
  • Page 26 ASAHI KASEI [AKD4556-B] AK4556 DAC THD + N vs Input Level fs=48kHz -100 -105 -110 -115 -120 -120 -110 -100 dBFS Figure 32. THD+N vs Input Level (fin=1kHz) AK4556 DAC THD + N vs Input Frequency fs=48kHz -100 -105 -110...
  • Page 27 ASAHI KASEI [AKD4556-B] AK4556 DAC Linearity fs=48kHz -100 -110 -120 -120 -110 -100 dBFS Figure 34. Linearity (fin=1kHz) AK4556 DAC Frequency Response fs=48kHz +1.75 +1.5 +1.25 +0.75 +0.5 +0.25 -0.25 -0.5 -0.75 -1.25 -1.5 -1.75 Figure 35. Frequency Response <KM082901>...
  • Page 28 ASAHI KASEI [AKD4556-B] AK4556 DAC Crosstalk fs=48kHz -100 -105 -110 -115 -120 -125 -130 -135 -140 -145 -150 Figure 36. Crosstalk <KM082901> 2006/08 - 28 -...
  • Page 29 ASAHI KASEI [AKD4556-B] fs=96kHz AK4556 DAC FFT fs=96kHz , 0dB Input -100 -110 -120 -130 -140 -150 -160 -170 -180 Figure 37. FFT (fin=1kHz , Input Level=0dBFS) AK4556 DAC FFT fs=96kHz , Notch Filter -100 -110 -120 -130 -140 -150...
  • Page 30 ASAHI KASEI [AKD4556-B] AK4556 DAC FFT fs=96kHz , -60dB Input -100 -110 -120 -130 -140 -150 -160 -170 -180 Figure 39. FFT (fin=1kHz , Input Level=-60dBFS) AK4556 DAC FFT fs=96kHz , No Signal -100 -110 -120 -130 -140 -150 -160...
  • Page 31 ASAHI KASEI [AKD4556-B] AK4556 DAC THD + N vs Input Level fs=96kHz -100 -105 -110 -115 -120 -120 -110 -100 dBFS Figure 41. THD+N vs Input Level (fin=1kHz) AK4556 DAC THD + N vs Input Frequency fs=96kHz -100 -105 -110...
  • Page 32 ASAHI KASEI [AKD4556-B] AK4556 DAC Linearity fs=96kHz -100 -110 -120 -120 -110 -100 dBFS Figure 43. Linearity (fin=1kHz) AK4556 DAC Frequency Response fs=96kHz +1.75 +1.5 +1.25 +0.75 +0.5 +0.25 -0.25 -0.5 -0.75 -1.25 -1.5 -1.75 Figure 44. Frequency Response <KM082901>...
  • Page 33 ASAHI KASEI [AKD4556-B] AK4556 DAC Crosstalk fs=96kHz -100 -105 -110 -115 -120 -125 -130 -135 -140 -145 -150 Figure 45. Crosstalk <KM082901> 2006/08 - 33 -...
  • Page 34 ASAHI KASEI [AKD4556-B] fs=192kHz AK4556 DAC FFT fs=192kHz , 0dB Input -100 -110 -120 -130 -140 -150 -160 -170 -180 Figure 46. FFT (fin=1kHz , Input Level=0dBFS) AK4556 DAC FFT fs=192kHz , Notch Filter -100 -110 -120 -130 -140 -150...
  • Page 35 ASAHI KASEI [AKD4556-B] AK4556 DAC FFT fs=192kHz , -60dB Input -100 -110 -120 -130 -140 -150 -160 -170 -180 Figure 48. FFT (fin=1kHz , Input Level=-60dBFS) AK4556 DAC FFT fs=192kHz , No Signal -100 -110 -120 -130 -140 -150 -160...
  • Page 36 ASAHI KASEI [AKD4556-B] AK4556 DAC THD + N vs Input Level fs=192kHz -100 -105 -110 -115 -120 -120 -110 -100 dBFS Figure 50. THD+N vs Input Level (fin=1kHz) AK4556 DAC THD + N vs Input Frequency fs=192kHz -100 -105 -110...
  • Page 37 ASAHI KASEI [AKD4556-B] AK4556 DAC Linearity fs=192kHz -100 -110 -120 -120 -110 -100 dBFS Figure 52. Linearity (fin=1kHz) AK4556 DAC Frequency Response fs=192kHz +1.75 +1.5 +1.25 +0.75 +0.5 +0.25 -0.25 -0.5 -0.75 -1.25 -1.5 -1.75 Figure 53. Frequency Response <KM082901>...
  • Page 38 ASAHI KASEI [AKD4556-B] AK4556 DAC Crosstalk fs=192kHz -100 -105 -110 -115 -120 -125 -130 -135 -140 -145 -150 Figure 54. Crosstalk <KM082901> 2006/08 - 38 -...

  • Page 39: 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 40 SDTO SDTI SDTI CKS0 CKS0 CKS3 CKS3 CKS1 CKS1 CKS2 CKS2 AK4556 AK4556 Title Title Title AKD4556-B AKD4556-B AKD4556-B Size Size Size Document Number Document Number Document Number AK4556 AK4556 AK4556 Date: Date: Date: Friday, August 25, 2006 Friday, August 25, 2006...
  • Page 41 OCKS1 CKS2 OCKS0 CKS1 CKS0 74HC14 74HC14 74HC14 74HC14 0.1u 0.1u 74HC14 74HC14 Title Title Title AKD4556-B AKD4556-B AKD4556-B Size Size Size Document Number Document Number Document Number DIT/DIR DIT/DIR DIT/DIR Date: Date: Date: Friday, August 25, 2006 Friday, August 25, 2006...