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ASAHI KASEI
[AKD4556-B]
AKD4556-B
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/DD/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 --Evaluation board for AK4556
FUNCTION Digital interface - DIT (AK4114): optical or BNC - DIR (AK4114): optical or BNC 10pin header for serial control interface
5V
Regulator
GND BNC
LIN RIN AK4114 (DIR&DIT)
Opt In
AK4556
Opt Out BNC
LOUT ROUT
10pin Header DSP
Figure 1. AKD4556-B Block Diagram * Circuit diagram and PCB layout are attached at the end of this manual.
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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. (See the followings.) 3) Power on The AK4556 should be reset once bringing SW1 (PDN) "L" upon power-up.
The function of the toggle SW.
[SW1] : Resets the AK4556 & AK4114. Keep "H" during normal operation.
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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 (2) Evaluation of DAC using DIR of the AK4114 (3) Evaluation of ADC using DIT of the AK4114 (4) All interface signals including master clock are fed externally.
(1) Evaluation of Loopback mode using the AK4114 X'tal oscillator (X1) 24.576MHz is used. (1-1) Slave mode JP1 : Short JP2 : Short SW3-1 (XTL1) : H SW3-2 (XTL0) : L SW3-7 (CM0) : H For the AK4556's sampling speed and audio interface format, refer to Table 3 on page 8. For the AK4114's sampling speed and audio interface format, refer to Table 6 and Table 7 on page 9. Example . Setting of the AK4556 mode 4 (HPF:ON , Audio Format: I2S) SW2 AK4556 SW3 AK4114 Speed CKS3 CKS2 CKS1 CKS0 DIF1 DIF0 OCKS1
(SW2-3) (SW2-4) (SW2-5) (SW2-6) (SW3-3) (SW3-4) (SW3-5)
OCKS0 (SW3-6)
Normal Double Quad
L L L
H H H
L L L
L L L
L L L
H H H
H L H
L L H
(1-2) Master mode JP1 : Short JP2 : Short SW3-1 (XTL1) : H SW3-2 (XTL0) : L SW3-3 (DIF1) : H SW3-4 (DIF0) : H SW3-7 (CM0) : H For the AK4556's sampling speed and audio interface format, refer to Table 3 on page 8. For the AK4114's sampling speed and audio interface format, refer to Table 6 and Table 7 on page 9. Example . Setting of the AK4556 Master mode (HPF:ON , Audio Format: I2S) SW2 AK4556 SW3 AK4114 Speed CKS3 CKS2 CKS1 CKS0 OCKS1 OCKS0
(SW2-3) (SW2-4) (SW2-5) (SW2-6) (SW3-5) (SW3-6)
Normal Double Quad
H H H
H H H
L L H
H L L
H L H
L L H
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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 JP3 : OPT or BNC SW3-1 (XTL1) : H SW3-2 (XTL0) : H SW3-7 (CM0) : L For the AK4556's sampling speed and audio interface format, refer to Table 3 on page 8. For the AK4114's sampling speed and audio interface format, refer to Table 6 and Table 7 on page 9. Example . Setting of the AK4556 mode 4 (HPF:ON , Audio Format: I2S) SW2 AK4556 SW3 AK4114 Speed CKS3 CKS2 CKS1 CKS0 DIF1 DIF0 OCKS1
(SW2-3) (SW2-4) (SW2-5) (SW2-6) (SW3-3) (SW3-4) (SW3-5)
OCKS0 (SW3-6)
Nomal Double Quad (2-2) Master mode
L L L
H H H
L L L
L L L
L L L
H H H
H L H
L L H
JP1 : Short JP2 : Short JP3 : OPT or BNC SW3-1 (XTL1) : H SW3-2 (XTL0) : H SW3-3 (DIF1) : H SW3-4 (DIF0) : H SW3-7 (CM0) : L For the AK4556's sampling speed and audio interface format, refer to Table 3 on page 8. For the AK4114's sampling speed and audio interface format, refer to Table 6 and Table 7 on page 9. Example . Setting of the AK4556 Master mode (HPF:ON , Audio Format: I2S) SW2 AK4556 SW3 AK4114 Speed CKS3 CKS2 CKS1 CKS0 OCKS1 OCKS0
(SW2-3) (SW2-4) (SW2-5) (SW2-6) (SW3-5) (SW3-6)
Normal Double Quad
H H H
H H H
L L H
H L L
H L H
L L H
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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. JP1 : Short JP2 : Short JP3,JP4 : OPT or BNC SW3-1 (XTL1) : H SW3-2 (XTL0) : H SW3-7 (CM0) : L (3-1-2) When using X'tal oscillator (X1) 24.576MHz JP1 : Short JP2 : Short JP4 : OPT or BNC SW3-1 (XTL1) : H SW3-2 (XTL0) : L SW3-7 (CM0) : H For the AK4556's sampling speed and audio interface format, refer to Table 3 on page 8. For the AK4114's sampling speed and audio interface format, refer to Table 6 and Table 7 on page 9. Example . Setting of the AK4556 Mode 8 (HPF:ON , Audio Format:LJ) SW2 AK4556 SW3 AK4114 Speed CKS3 CKS2 CKS1 CKS0 DIF1 DIF0 OCKS1
(SW2-3) (SW2-4) (SW2-5) (SW2-6) (SW3-3) (SW3-4) (SW3-5)
OCKS0 (SW3-6)
Normal Double Quad
H H H
L L L
L L L
L L L
L L L
L L L
H L H
L L H
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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 SW3-2 (XTL0) : H SW3-3 (DIF1) : H SW3-4 (DIF0) : H SW3-7 (CM0) : L (3-2-2) When using X'tal oscillator (X1) 24.576MHz JP1 : Short JP2 : Short JP4 : OPT or BNC SW3-1 (XTL1) : H SW3-2 (XTL0) : L SW3-3 (DIF1) : H SW3-4 (DIF0) : H SW3-7 (CM0) : H For the AK4556's sampling speed and audio interface format, refer to Table 3 on page 8. For the AK4114's sampling speed and audio interface format, refer to Table 6 and Table 7 on page 9. Example . Setting of the AK4556 Master Mode (HPF:ON , Audio Format: I2S) SW2 AK4556 SW3 AK4114 Speed CKS3 CKS2 CKS1 CKS0 OCKS1 OCKS0
(SW2-3) (SW2-4) (SW2-5) (SW2-6) (SW3-5) (SW3-6)
Normal Double Quad
H H H
H H H
L L H
H L L
H L H
L L H
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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. (4-2) Master mode JP1 : Open JP2 : Open SW3-3 (DIF1) : H SW3-4 (DIF0) : H In master mode , the AK4556's sampling speed and audio interface format is set by SW2. See Table 1 on page 8 for possible mode setting.
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ASAHI KASEI
[AKD4556-B]
Setting of DIP SW 1. Evaluation mode setting of SW2 (AK4556)
No. Name Default 1 DEM1 L 2 DEM0 H 3 CKS3 L 4 CKS2 H 5 CKS1 L 6 CKS0 L Table 1 . SW2 AK4556 Mode Setting DEM1 DEM0 Mode L L 44.1kHz L H OFF H L 48kHz H H 32kHz Table 2 . De-emphasis filter control Mode 0 1 2 3 4 5 6 7 8 9 10 11 CKS3 L L L L L L L L H H H H CKS2 L L L L H H H H L L L L CKS1 L L H H L L H H L L H H CKS0 L H L H L H L H L H L H HPF ON ON OFF OFF ON ON OFF OFF ON ON OFF OFF M/S Slave Slave Slave Slave Slave Slave Slave Slave Slave Slave Slave Slave MCLK 128/192fs (Quad Speed) 256/384fs (Double Speed) 512/768fs (Normal Speed) 256/384/512/768fs (Normal Speed) 128/192fs (Quad Speed) 256/384fs (Double Speed) 512/768fs (Normal Speed) 256/384/512/768fs (Normal Speed) 128/192fs (Quad Speed) 256/384fs (Double Speed) 512/768fs (Normal Speed) 256/384/512/768fs (Normal Speed) 128/192fs (Quad Speed) 256/384fs (Double Speed) 512/768fs (Normal Speed) 256/384/512/768fs (Normal Speed) 128/192fs (Quad Speed) 256/384fs (Double Speed) 512/768fs (Normal Speed) 256/384/512/768fs (Normal Speed) 128/192fs (Quad Speed) 256/384fs (Double Speed) 512/768fs (Normal Speed) 256/384/512/768fs (Normal Speed) 256fs (Double Speed) 512fs (Normal Speed) 128fs (Quad Speed) 256fs (Normal Speed) Audio I/F LJ/RJ LJ/RJ LJ/RJ LJ/RJ I2S I2S I2S I2S LJ LJ LJ LJ
12 H H L L ON Master I2S 13 H H L H ON Master I2S 14 H H H L ON Master I2S 15 H H H H ON Master I2S Table 3 . AK4556 Mode Settting In case of the AK4556 evaluation using the AK4114 , LJ/RJ (Mode 0 ~ Mode 3) in Audio I/F does not support. -82006/08
ASAHI KASEI
[AKD4556-B]
2. Evaluation mode setting of SW3 (AK4114)
No. Name Default 1 XTL1 H 2 XTL0 L 3 DIF1 L 4 DIF0 H 5 OCKS1 L 6 OCKS0 L 7 CM0 H Table 4 . SW3 AK4114 Mode Setting XTL1 XTL0 X'tal Frequency L L 11.2896 MHz L H 12.288 MHz H L 24.576 MHz H H OFF Table 5 . Reference X'tal Frequency DIF1 DIF0 DAUX L L 24bit LJ L H 24bit I2S H H 24bit I2S Table 6. Audio Data Format OCKS1 OCKS0 MCKO1 L L 256fs H L 512fs H H 128fs Table 7. Master Clock Output Frequency CM0 PLL Clock Souce L ON PLL H OFF X'tal Table 8 . Clock Operation Mode SDTO 24bit LJ 24bit I2S 24bit I2S LRCK,BCLK O O I
X'tal 256fs 512fs 128fs
fs Max 96kHz 48kHz 192kHz
Speed Double Normal Quad
SDTO RX DAUX
Jumper pins set up
[JP1] : MCLK Short : MCLK is supplied from the AK4114. Open : MCLK is supplied from PORT3. [JP2] : SDTI Short Open : SDTI is supplied from the AK4114. : SDTI is supplied from PORT3.
[JP3] : RX (DIR) OPT : Optical connector (PORT1) is used. BNC : BNC connector (J5) is used. [JP4] : TX (DIT) OPT : Optical connector (PORT2) is used. BNC : BNC connector (J6) is used.
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2006/08
ASAHI KASEI
[AKD4556-B]
Analog input circuit
J1
RIN
C7
10u RIN
+
J2
LIN
C8
10u LIN
+
Figure 2. Analog Input Circuit
Analog output circuit
J3 R8 +
220
ROUT
ROUT
C9
22u
R9
10k
J4 R11 +
220
LOUT
LOUT
C10
22u
R10
10k
Figure 3. Analog Output Circuit
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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 Power Supply: VA=VD=3.3 V Temperature: Room Input Frequency: 1kHz Sampling Frequency: 48kHz , 96kHz , 192kHz [Measurement Results]
ADC (LIN/RIN) characteristics Sampling Parameter Frequency S / (N+D) DR 48kHz DR S/N 96kHz S / (N+D) DR DR S/N S / (N+D) DR DR S/N
Condition -1dB Input -60dB Input -60dB Input No Signal -1dB Input -60dB Input -60dB Input No Signal -1dB Input -60dB Input -60dB Input No Signal
Filter 20kHzLPF 20kHzLPF A-weighted A-weighted 40kHzLPF 40kHzLPF A-weighted A-weighted 40kHzLPF 40kHz LPF A-weighted A-weighted
L ch 92.2 102.4 104.8 104.9 90.8 98.7 104.3 104.4 90.8 98.6 103.8 103.9
R ch 92.1 102.4 104.8 104.9 90.8 98.7 104.3 104.4 90.8 98.6 103.8 103.9
Units dB dB dB dB dB dB dB dB dB dB dB dB
192kHz
DAC (LOUT/ROUT) characteristics Sampling Parameter Condition Frequency S / (N+D) 0dB Input DR -60dB Input 48kHz DR -60dB Input S/N No Signal 96kHz S / (N+D) DR DR S/N S / (N+D) DR DR S/N 0dB Input -60dB Input -60dB Input No Signal 0dB Input -60dB Input -60dB Input No Signal
Filter 20kHzLPF 20kHzLPF A-weighted A-weighted 40kHzLPF 40kHzLPF A-weighted A-weighted 40kHzLPF 40kHz LPF A-weighted A-weighted
L [dB] 90.8 105.0 107.5 107.8 89.2 102.7 107.7 107.7 89.2 102.7 107.7 107.7
R [dB] 90.9 105.0 107.5 107.8 89.1 102.7 107.7 107.7 89.2 102.7 107.7 107.7
Units dB dB dB dB dB dB dB dB dB dB dB dB
192kHz
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2006/08
ASAHI KASEI
[AKD4556-B]
[Plots]
ADC fs=48kHz
AKM
+0 -10 -20 -30 -40 -50 -60 -70 d B F S -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 Hz 1k 2k 5k 10k 20k
AK4556 ADC FFT fs=48kHz , -1dB Input
Figure 4. FFT (fin=1kHz , Input Level=-1dBFS)
AKM
+0 -10 -20 -30 -40 -50 -60 -70 d B F S -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 Hz 1k 2k 5k 10k 20k
AK4556 ADC FFT fs=48kHz , -60dB Input
Figure 5. FFT (fin=1kHz , Input Level=-60dBFS) - 12 2006/08
ASAHI KASEI
[AKD4556-B]
AKM
+0 -10 -20 -30 -40 -50 -60 -70 d B F S -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200
AK4556 ADC FFT fs=48kHz , No Signal
500 Hz
1k
2k
5k
10k
20k
Figure 6. FFT (fin=1kHz , No Signal)
AKM
-60 -65 -70 -75 -80 -85 d B F S -90 -95 -100 -105 -110 -115 -120 -120
AK4556 ADC THD + N vs Input Level fs=48kHz
-110
-100
-90
-80
-70
-60 dBr
-50
-40
-30
-20
-10
Figure 7. THD+N vs Input Level (fin=1kHz)
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2006/08
ASAHI KASEI
[AKD4556-B]
AKM
-60 -65 -70 -75 -80 -85 d B F S -90 -95 -100 -105 -110 -115 -120 20
AK4556 ADC THD + N vs Input Frequency fs=48kHz
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 8. THD+N vs Input Frequency (Input Level =-1dBFS)
AKM
+0 -10 -20 -30 -40 -50 d B F S -60 -70 -80 -90 -100 -110 -120 -120
AK4556 ADC Linearity fs=48kHz
-110
-100
-90
-80
-70
-60 dBr
-50
-40
-30
-20
-10
+0
Figure 9. Linearity (fin=1kHz)
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2006/08
ASAHI KASEI
[AKD4556-B]
AKM
+0
AK4556 ADC Freqency Response fs=48kHz
-0.2
-0.4
-0.6
-0.8 d B F S
-1
-1.2
-1.4
-1.6
-1.8
-2 20
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 10. Frequency Response
AKM
-80 -85 -90 -95 -100 -105 -110 d B -115 -120 -125 -130 -135 -140 -145 -150 20
AK4556 ADC Crosstalk fs=48kHz
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 11. Crosstalk
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2006/08
ASAHI KASEI
[AKD4556-B]
fs=96kHz
AKM
+0 -10 -20 -30 -40 -50 -60 -70 d B F S -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k Hz 2k 5k 10k 20k 40k
AK4556 ADC FFT fs=96kHz , -1dB Input
Figure 12. FFT (fin=1kHz , Input Level=-1dBFS)
AKM
+0 -10 -20 -30 -40 -50 -60 -70 d B F S -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k Hz 2k 5k 10k 20k 40k
AK4556 ADC FFT fs=96kHz , -60dB Input
Figure 13. FFT (fin=1kHz , Input Level=-60dBFS)
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2006/08
ASAHI KASEI
[AKD4556-B]
AKM
+0 -10 -20 -30 -40 -50 -60 -70 d B F S -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200
AK4556 ADC FFT fs=96kHz , No Signal
500
1k Hz
2k
5k
10k
20k
40k
Figure 14. FFT (fin=1kHz , No Signal)
AKM
-60 -65 -70 -75 -80 -85 d B F S -90 -95 -100 -105 -110 -115 -120 -120
AK4556 ADC THD + N vs Input Level fs=96kHz
-110
-100
-90
-80
-70
-60 dBr
-50
-40
-30
-20
-10
Figure 15. THD+N vs Input Level (fin=1kHz)
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2006/08
ASAHI KASEI
[AKD4556-B]
AKM
-60 -65 -70 -75 -80 -85 d B F S -90 -95 -100 -105 -110 -115 -120 20
AK4556 ADC THD + N vs Input Frequency fs=96kHz
50
100
200
500
1k Hz
2k
5k
10k
20k
40k
Figure 16. THD+N vs Input Frequency (Input Level =-1dBFS)
AKM
+0 -10 -20 -30 -40 -50 d B F S -60 -70 -80 -90 -100 -110 -120 -120
AK4556 ADC Linearity fs=96kHz
-110
-100
-90
-80
-70
-60 dBr
-50
-40
-30
-20
-10
+0
Figure 17. Linearity (fin=1kHz)
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2006/08
ASAHI KASEI
[AKD4556-B]
AKM
+0
AK4556 ADC Freqency Response fs=96k
-0.2
-0.4
-0.6
-0.8 d B F S
-1
-1.2
-1.4
-1.6
-1.8
-2 20
50
100
200
500
1k Hz
2k
5k
10k
20k
40k
Figure 18. Frequency Response
AKM
-80 -85 -90 -95 -100 -105 -110 d B -115 -120 -125 -130 -135 -140 -145 -150 20
AK4556 ADC Crosstalk fs=96kHz
50
100
200
500
1k Hz
2k
5k
10k
20k
40k
Figure 19. Crosstalk
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2006/08
ASAHI KASEI
[AKD4556-B]
fs=192kHz
AKM
+0 -10 -20 -30 -40 -50 -60 -70 d B F S -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k Hz 2k 5k 10k 20k 50k 80k
AK4556 ADC FFT fs=192kHz , -1dB Input
Figure 20. FFT (fin=1kHz , Input Level=-1dBFS)
AKM
+0 -10 -20 -30 -40 -50 -60 -70 d B F S -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200
AK4556 ADC FFT fs=192kHz , -60dB Input
500
1k Hz
2k
5k
10k
20k
50k
80k
Figure 21. FFT (fin=1kHz , Input Level=-60dBFS)
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2006/08
ASAHI KASEI
[AKD4556-B]
AKM
+0 -10 -20 -30 -40 -50 -60 -70 d B F S -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200
AK4556 ADC FFT fs=192kHz , No Signal
500
1k Hz
2k
5k
10k
20k
50k
80k
Figure 22. FFT (fin=1kHz , No Signal)
AKM
-60 -65 -70 -75 -80 -85 d B F S -90 -95 -100 -105 -110 -115 -120 -120
AK4556 ADC THD + N vs Input Level fs=192kHz
-110
-100
-90
-80
-70
-60 dBr
-50
-40
-30
-20
-10
Figure 23. THD+N vs Input Level (fin=1kHz)
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2006/08
ASAHI KASEI
[AKD4556-B]
AKM
-60 -65 -70 -75 -80 -85 d B F S -90 -95 -100 -105 -110 -115 -120 20
AK4556 ADC THD + N vs Input Frequency fs=192kHz
50
100
200
500
1k Hz
2k
5k
10k
20k
50k
80k
Figure 24. THD+N vs Input Frequency (Input Level =-1dBFS)
AKM
+0 -10 -20 -30 -40 -50 d B F S -60 -70 -80 -90 -100 -110 -120 -120
AK4556 ADC Linearity fs=192kHz
-110
-100
-90
-80
-70
-60 dBr
-50
-40
-30
-20
-10
+0
Figure 25. Linearity (fin=1kHz)
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2006/08
ASAHI KASEI
[AKD4556-B]
AKM
+0
AK4556 ADC Freqency Response fs=192k
-0.2
-0.4
-0.6
-0.8 d B F S
-1
-1.2
-1.4
-1.6
-1.8
-2 20
50
100
200
500
1k Hz
2k
5k
10k
20k
50k
80k
Figure 26. Frequency Response
AKM
-80 -85 -90 -95 -100 -105 -110 d B -115 -120 -125 -130 -135 -140 -145 -150 20
AK4556 ADC Crosstalk fs=192kHz
50
100
200
500
1k Hz
2k
5k
10k
20k
50k
80k
Figure 27. Crosstalk
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2006/08
ASAHI KASEI
[AKD4556-B]
DAC fs=48kHz
AKM
+0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 Hz 1k 2k 5k 10k 20k
AK4556 DAC FFT fs=48kHz 0dB Input
Figure 28. FFT (fin=1kHz , Input Level=0dBFS)
AKM
+0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 Hz 1k 2k 5k 10k 20k
AK4556 DAC FFT fs=48kHz , Notch Filter
Figure 29. FFT (fin=1kHz , Input Level=0dBFS , Notch Filter)
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2006/08
ASAHI KASEI
[AKD4556-B]
AKM
+0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200
AK4556 DAC FFT fs=48kHz , -60dB Input
500 Hz
1k
2k
5k
10k
20k
Figure 30. FFT (fin=1kHz , Input Level=-60dBFS)
AKM
+0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 Hz 1k 2k 5k 10k 20k
AK4556 DAC FFT fs=48kHz , No Signal
Figure 31. FFT (fin=1kHz , No Signal)
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ASAHI KASEI
[AKD4556-B]
AKM
-60 -65 -70 -75 -80 -85 -90 -95 -100 -105 -110 -115 -120 -120
AK4556 DAC THD + N vs Input Level fs=48kHz
d B r A
-110
-100
-90
-80
-70
-60 dBFS
-50
-40
-30
-20
-10
+0
Figure 32. THD+N vs Input Level (fin=1kHz)
AKM
-60 -65 -70 -75 -80 -85 -90 -95 -100 -105 -110 -115 -120 20
AK4556 DAC THD + N vs Input Frequency fs=48kHz
d B r A
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 33. THD+N vs Input Frequency (Input Level =0dBFS)
- 26 -
2006/08
ASAHI KASEI
[AKD4556-B]
AKM
+0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -120
AK4556 DAC Linearity fs=48kHz
d B r A
-110
-100
-90
-80
-70
-60 dBFS
-50
-40
-30
-20
-10
+0
Figure 34. Linearity (fin=1kHz)
AKM
+2 +1.75 +1.5 +1.25 +1 +0.75 +0.5 d B r A +0.25 +0 -0.25 -0.5 -0.75 -1 -1.25 -1.5 -1.75 -2 20 50 100
AK4556 DAC Frequency Response fs=48kHz
200
500 Hz
1k
2k
5k
10k
20k
Figure 35. Frequency Response
- 27 -
2006/08
ASAHI KASEI
[AKD4556-B]
AKM
-80 -85 -90 -95 -100 -105 -110 d B -115 -120 -125 -130 -135 -140 -145 -150 20
AK4556 DAC Crosstalk fs=48kHz
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 36. Crosstalk
- 28 -
2006/08
ASAHI KASEI
[AKD4556-B]
fs=96kHz
AKM
+0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k Hz 2k 5k 10k 20k 40k
AK4556 DAC FFT fs=96kHz , 0dB Input
Figure 37. FFT (fin=1kHz , Input Level=0dBFS)
AKM
+0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k Hz 2k 5k 10k 20k 40k
AK4556 DAC FFT fs=96kHz , Notch Filter
Figure 38. FFT (fin=1kHz , Input Level=0dBFS , Notch Filter)
- 29 -
2006/08
ASAHI KASEI
[AKD4556-B]
AKM
+0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200
AK4556 DAC FFT fs=96kHz , -60dB Input
500
1k Hz
2k
5k
10k
20k
40k
Figure 39. FFT (fin=1kHz , Input Level=-60dBFS)
AKM
+0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200
AK4556 DAC FFT fs=96kHz , No Signal
500
1k Hz
2k
5k
10k
20k
40k
Figure 40. FFT (fin=1kHz , No Signal)
- 30 -
2006/08
ASAHI KASEI
[AKD4556-B]
AKM
-60 -65 -70 -75 -80 -85 -90 -95 -100 -105 -110 -115 -120 -120
AK4556 DAC THD + N vs Input Level fs=96kHz
d B r A
-110
-100
-90
-80
-70
-60 dBFS
-50
-40
-30
-20
-10
+0
Figure 41. THD+N vs Input Level (fin=1kHz)
AKM
-60 -65 -70 -75 -80 -85 -90 -95 -100 -105 -110 -115 -120 20
AK4556 DAC THD + N vs Input Frequency fs=96kHz
d B r A
50
100
200
500
1k Hz
2k
5k
10k
20k
40k
Figure 42. THD+N vs Input Frequency (Input Level =-1dBFS)
- 31 -
2006/08
ASAHI KASEI
[AKD4556-B]
AKM
+0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -120
AK4556 DAC Linearity fs=96kHz
d B r A
-110
-100
-90
-80
-70
-60 dBFS
-50
-40
-30
-20
-10
+0
Figure 43. Linearity (fin=1kHz)
AKM
+2 +1.75 +1.5 +1.25 +1 +0.75 +0.5 d B r A +0.25 +0 -0.25 -0.5 -0.75 -1 -1.25 -1.5 -1.75 -2 20 50 100 200
AK4556 DAC Frequency Response fs=96kHz
500
1k Hz
2k
5k
10k
20k
40k
Figure 44. Frequency Response
- 32 -
2006/08
ASAHI KASEI
[AKD4556-B]
AKM
-80 -85 -90 -95 -100 -105 -110 d B -115 -120 -125 -130 -135 -140 -145 -150 20
AK4556 DAC Crosstalk fs=96kHz
50
100
200
500
1k Hz
2k
5k
10k
20k
40k
Figure 45. Crosstalk
- 33 -
2006/08
ASAHI KASEI
[AKD4556-B]
fs=192kHz
AKM
+0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200 500 1k Hz 2k 5k 10k 20k 50k 80k
AK4556 DAC FFT fs=192kHz , 0dB Input
Figure 46. FFT (fin=1kHz , Input Level=0dBFS)
AKM
+0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200
AK4556 DAC FFT fs=192kHz , Notch Filter
500
1k Hz
2k
5k
10k
20k
50k
80k
Figure 47. FFT (fin=1kHz , Input Level=0dBFS , Notch Filter)
- 34 -
2006/08
ASAHI KASEI
[AKD4556-B]
AKM
+0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200
AK4556 DAC FFT fs=192kHz , -60dB Input
500
1k Hz
2k
5k
10k
20k
50k
80k
Figure 48. FFT (fin=1kHz , Input Level=-60dBFS)
AKM
+0 -10 -20 -30 -40 -50 -60 -70 d B r A -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 20 50 100 200
AK4556 DAC FFT fs=192kHz , No Signal
500
1k Hz
2k
5k
10k
20k
50k
80k
Figure 49. FFT (fin=1kHz , No Signal)
- 35 -
2006/08
ASAHI KASEI
[AKD4556-B]
AKM
-60 -65 -70 -75 -80 -85 -90 -95 -100 -105 -110 -115 -120 -120
AK4556 DAC THD + N vs Input Level fs=192kHz
d B r A
-110
-100
-90
-80
-70
-60 dBFS
-50
-40
-30
-20
-10
+0
Figure 50. THD+N vs Input Level (fin=1kHz)
AKM
-60 -65 -70 -75 -80 -85 -90 -95 -100 -105 -110 -115 -120 20
AK4556 DAC THD + N vs Input Frequency fs=192kHz
d B r A
50
100
200
500
1k Hz
2k
5k
10k
20k
40k
Figure 51. THD+N vs Input Frequency (Input Level =0dBFS)
- 36 -
2006/08
ASAHI KASEI
[AKD4556-B]
AKM
+0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -120
AK4556 DAC Linearity fs=192kHz
d B r A
-110
-100
-90
-80
-70
-60 dBFS
-50
-40
-30
-20
-10
+0
Figure 52. Linearity (fin=1kHz)
AKM
+2 +1.75 +1.5 +1.25 +1 +0.75 +0.5 d B r A +0.25 +0 -0.25 -0.5 -0.75 -1 -1.25 -1.5 -1.75 -2 20 50 100 200
AK4556 DAC Frequency Response fs=192kHz
500
1k Hz
2k
5k
10k
20k
50k
80k
Figure 53. Frequency Response
- 37 -
2006/08
ASAHI KASEI
[AKD4556-B]
AKM
-80 -85 -90 -95 -100 -105 -110 d B -115 -120 -125 -130 -135 -140 -145 -150 20
AK4556 DAC Crosstalk fs=192kHz
50
100
200
500
1k Hz
2k
5k
10k
20k
40k
Figure 54. Crosstalk
- 38 -
2006/08
ASAHI KASEI
[AKD4556-B]
Revision History
Date (YY/MM/DD) 06/05/18 06/08/25 Manual Revision KM082900 KM082901 Board Revision 0 1 Reason First Edition Change device revision Contents
* AK4556 Rev.A Rev.B * Table Data & Plot Data were updated.
IMPORTANT NOTICE * These products and their specifications are subject to change without notice. Before considering any use or application, consult the Asahi Kasei Microsystems Co., Ltd. (AKM) sales office or authorized distributor concerning their current status. * AKM assumes no liability for infringement of any patent, intellectual property, or other right in the application or use of any information contained herein. * Any export of these products, or devices or systems containing them, may require an export license or other official approval under the law and regulations of the country of export pertaining to customs and tariffs, currency exchange, or strategic materials. * AKM products are neither intended nor authorized for use as critical components in any safety, life support, or other hazard related device or system, and AKM assumes no responsibility relating to any such use, except with the express written consent of the Representative Director of AKM. As used here: (a) A hazard related device or system is one designed or intended for life support or maintenance of safety or for applications in medicine, aerospace, nuclear energy, or other fields, in which its failure to function or perform may reasonably be expected to result in loss of life or in significant injury or damage to person or property. (b) A critical component is one whose failure to function or perform may reasonably be expected to result, whether directly or indirectly, in the loss of the safety or effectiveness of the device or system containing it, and which must therefore meet very high standards of performance and reliability. * 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 and conditions, and the buyer or distributor agrees to assume any and all responsibility and liability for and hold AKM harmless from any and all claims arising from the use of said product in the absence of such notification.
- 39 -
2006/08
A
B
C
D
E
VCC
3
LT1117-3.3 T1
GND IN OUT 2
VA C16 0.1u C15 + 47u
E
C17 + 47u
C14 0.1u
1
DGND
AGND
E
LT1117-3.3 T2
for 74HC14 GND 3 IN OUT 2
+3.3V C11 0.1u + C12 47u C18 0.1u AVDD
C13 0.1u
D
1
D
+
J1 RIN
C7 10u + U1
1 RIN ROUT 20
R8 220
J3 ROUT
C9 22u
R9 10k
2
C
LIN
LOUT
19
+
J2 LIN
C8 10u +
3 VSS VCOM 18
R11 220
J4 LOUT
C
VA R12 5.1 + C5 10u C6 0.1u
DEM0
DEM1 R4
B
51
8 SDTO SDTI 13
SDTO
CKS0
CKS1
A
A
B
+
C3 10u
C4 0.1u
4 VA PDN 17
5
VD
BCLK
16
6
DEM0
MCLK
15
7
DEM1
LRCK
14
9
CKS0
CKS3
12
10
CKS1
CKS2
11
AK4556
C
+ R1 R2 R3 R5
C1 0.1u
C2 2.2u
C10 22u
R10 10k
PDN 51 BCLK 51 MCLK 51 LRCK 51 SDTI
B
CKS3
CKS2
A
Title Size Document Number
AKD4556-B
AK4556
Sheet
E
Rev
A3
Date:
D
1 1
of
Friday, August 25, 2006
2
5
4
3
2
1
MCLK
D
BCLK PORT1
VCC GND OUT 3 2 1 1
D
L1 (short)
2
LRCK +3.3V AVDD C25 10u C19 0.1u R14 18k + C23 0.47u + + SDTI SDTO
C20 0.1u
TORX141
C24 + 10u
R13
OPT
470
JP3 RX
BNC
JP1 MCLK
J5 BNC RX
C22 R15 75 0.1u
RX
JP2 SDTI
MCLK BICK LRCK SDTI VCC R24 220k R25 220k R26 220k R27 220k
PORT3
1 2 3 4 5 10 9 8 7 6
SDTO
DSP
C26 5p
C
+3.3V DIF0/RX5 XTI X1 XTO 24.576MHz
1 2
DIF1/RX6
C27 5p
XTL0 XTL1
1 2 3 4 5 6 7 8 9 10 11 12
RX3 AVSS RX2 TEST1 RX1 AVSS RX0 AVSS VCOM R AVDD INT1
48 47 46 45 44 43 42 41 40 39 38 37
PORT2
IN VCC GND 3 2 1
+3.3V C28 0.1u +3.3V JP4
OPT
TOTX141
C29 10u + C30 0.1u R21 +
13 14 15 16 17 18 19 20 21 22 23 24
TVDD DVSS TX0 TX1 BOUT COUT UOUT VOUT DVDD DVSS MCKO1 LRCK
IPS0/RX4 AVSS DIF0/RX5 TEST2 DIF1/RX6 AVSS DIF2/RX7 IPS1/IIC P/SN XTL0 XTL1 VIN
U2 AK4114
INT0 OCKS0/CSN OCKS1/CCLK CM1/CDTI CM0/CDTO PDN XTI XTO DAUX MCKO2 BICK SDTO
36 35 34 33 32 31 30 29 28 27 26 25
OCKS0 OCKS1 CM0 PDN
R20 +3.3V 10k
C
XTI
XTO
J6 BNC TX
T4 DA02
R23 240
TX
BNC
C31 0.1u C32 10u
5.1 AK4556 Mode Setting AK4114 Mode Setting +3.3V
5 7 14
TX
B
1:1
R22 150
U3C
6
74HC14
XTL1 XTL0 DIF1 DIF0 OCKS1 OCKS0 CM0
SW3
1 2 3 4 5 6 7 14 13 12 11 10 9 8
+3.3V
DEM1 DEM0 CKS3 CKS2 CKS1 CKS0
SW2
1 2 3 4 5 6 12 11 10 9 8 7
+3.3V
B
14
+3.3V D1 1S1588 R16 10k
14 1 H L
+3.3V
9 14
U3D
8
RP2
7 6 5 4 3 2 1
2 7
3 7
4
PDN
14
SW1 PDN
C33 0.1u
7
U3A
U3B
74HC14
74HC14
74HC14
11
U3E
10
XTL1 XTL0 DIF1/RX6 DIF0/RX5 OCKS1 OCKS0 CM0
RP1
6 5 4 3 2 1
DEM1 DEM0 CKS3 CKS2 CKS1 CKS0
47K
47k
13 7
14
A
7
74HC14
A
U3F
12
Title Size Document Number
AKD4556-B
DIT/DIR
Sheet
Rev
A3
Date:
5 4 3 2
1 2
of
Friday, August 25, 2006
2
1

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