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ASAHI KASEI
[AKD4528]
AKD4528
Evaluation board AK4528 Rev.C
GENERAL DESCRIPTION The AKD4528 is an evaluation board for the AK4528, the 24Bit A/D & D/A converter. The AKD4528 can evaluate A/D converter and D/A converter separately in addition to Loopback mode (A/DD/A). The AKD4528 also has the digital audio interface and can achieve the interface with digital audio systems via opt-connector. n Ordering guide
AKD4528 --Evaluation board for AK4528 (Cable for connecting with printer port of IBM-AT compatible PC and control software are packed with this.)
FUNCTION o Digital interface - DIT (AK4353), DIR (AK4112A) with optical output/input. o 10pin header for serial control interface
-15V +15V
Regulator
AGND DGND
LIN RIN
Input Buffer
AK4112A (DIR) AK4353 (DIT)
Opt In
AK4528
Output Buffer
Opt Out
LOUT ROUT
10pin Header Control Data
Figure 1. AKD4528 Block Diagram * Circuit diagram and PCB layout are attached at the end of this manual.
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ASAHI KASEI
[AKD4528]
1. Analog Input Buffer Circuit The ADC inputs are full differential and the input resistance is 27k (typ. @fs=44.1kHz). The input signal range scales with the VREF voltage and nominally 0.56 x VREF Vpp. It is recommended that the input DC bias voltage is 2.9V(The bias is a voltage divided by resistors (3.3k and 4.7k) from VA in figure 2. The ADC output data format is 2's complement. The output code is 7FFFFFH(@24bit) for input above a positive full scale and 800000H(@24bit) for input below a negative fill scale. The ideal code is 000000H(@24bit) with no input signal. The DC offset including ADC own DC offset removed by the internal HPF (fc=0.9Hz@fs=44.1kHz). The AK4528 samples the analog inputs at 64fs. The digital filter rejects noise above the stopband except for multiples of 64fs. A simple RC filter may be used to attenuate any noise around 64fs though most audio signals do not have significant energy at 64fs. Figure 2 is an example of differential input circuit.
5.96Vpp 4.7k 2.8Vpp 4.7k 330 330 AINR3 2.8Vpp 4.7k + NJM5532 Vop+ 10k + VA Vop3.3k AINL+ 4 AINL5 Vop+/-=+/-15V VA=5V Same circuit BIAS 4.7k + 10u 0.1u 22u Signal
AK4528
AINR+ 2
1.5nF
Input RC filter response : fc = 160kHz, g = -0.07dB at 20kHz, -0.26dB at 40kHz.
Figure 2. Differential Input Buffer Example 2.Analog Output Buffer Circuit The 2nd-order LPF (fc=93.2kHz, Q=0.712) which adds differential output of AK4528 is implemented on the board. When the further attenuation of the out-band noise is needed, some additional LPF is required. NJM5532D is used for op-amp. Analog signal is output through BNC connectors (AOUTL, AOUTR) on board, and the output level of AK4528is about 5.4Vp-p.
4.7k AOUT200 470p 4.7k
3300p 4.7k AOUT+ 4.7k 470p 200
+Vop + -Vop Analog Out
fc=93.2kHz, Q=0.712, g=-0.1dB at 40kHz
Figure 3. External 2nd order LPF Example (using dual supply op-amp)
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ASAHI KASEI
[AKD4528]
1. Evaluation Board Manual n Operation sequence
1) Set up the power supply line [+15V] (Orange) = +15V [-15V] (Green) = -15V [AGND] (Black) = 0V [DGND] (Black) = 0V Note: Power should be supplied after jumpers are set-ups properly. Each supply line should be distributed from the power supply unit.
2) Set up the evaluation modes, jumper pins and DIPswitch. (See the followings.) 3) Power on The AK4528 should be reset once bringing SW3 (PDN) "L" upon power-up.
n Evaluation modes
Applicable evaluation modes (1) Loopback mode (default) (2) Evaluation of ADC (3) Evaluation of DAC (1) Loopback mode (default) Clock mode of the AK4112A should be set to X'tal mode. (2) Evaluation of ADC TOTX176 is used for digital output. Clock mode of the AK4112A should be set to X'tal mode. (3) Evaluation of DAC TORX176 or COAX is used for digital input. Clock mode of the AK4112A should be set to PLL mode.
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[AKD4528]
n SW2 set-up (AK4112A set up. See datasheet of AK4112A.)
1. DIF2, DIF1 and DIF0 of SW2 set -up. Set the mode of AK4112A DIF2 0 0 0 0 1 1 DIF1 0 0 1 1 0 0 DIF0 0 1 0 1 0 1 ADC format at Loopback 24bit, Left justified 24bit, Left justified 24bit, Left justified 24bit, Left justified 24bit, Left justified 24bit, I2S Input format of DAC 16bit, Right justified 18bit, Right justified 20bit, Right justified 24bit, Right justified 24bit, Left justified 24bit, I2S LRCK H/L H/L H/L H/L H/L L/H BICK 64fs 64fs 64fs 64fs 64fs 64fs
default
2. CM1and CM0 set-up Clock source select of AK4112A CM1 0 0 CM0 0 1 PLL ON OFF X'tal Clock source Input data of DAC
OFF PLL optical default ON X'tal output of ADC ON: Oscillation (Power-up), OFF: STOP (Power-down)
3. OCKS1 and OCKS0 set-up MCLK output of AK4112A OCKS1 0 0 1 OCKS0 0 1 0 MCKO1 256fs 256fs 512fs fs (kHz) 32, 44.1, 48, 96 32, 44.1, 48, 96 32, 44.1, 48
default
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[AKD4528]
n SW4 set-up
Set the mode of AK4528. [SW4]: AK4528 set-up No. 1 2 3 4 5 6 7 Pin CKS0 CKS1 DIF DFS DEM0 DEM1 P/S OFF ON Master clock mode(default : X'tal mode) (See datasheet of AK4528.) MSB justified I2S(default) normal double speed speed(default) De-emphasis(default : OFF) (see datasheet of AK4528) serial mode parallel mode (default) Table 1. SW4 set up
n Jumper set-up
JP1 (OPT/RX): optical connector or BNC OPT (default) : Biphase signal is supplied to AK4112A by optical connector. RX : Biphase signal is supplied to AK4112A by BNC connector. n The indication content for LED. [LE1] (ERF) [LE2] (FS96) [LE3] (AUTO) [LE4] (V) : AK4112A unlock and parity error output. : AK4112A 96kHz sampling detect. : AK4112A AC-3/MPEG detects. : Validity.
n The function of the toggle SW. [SW3] : Resets the AK4528, AK4112A and AK4353. Keep "H" during normal operation.
n Serial control mode
The AK4528 can be controlled via the printer port (parallel port) of IBM-AT compatible PC. Connect PORT2 (CR-I/F) with PC by 10-wire flat cable packed with the AKD4528.
10
PORT2 CR-I/F
9 CSN CCLK CDTI
Take care of the direction of connector. There is a mark at pin#1. The pin layout of PORT1 is as Figure 4.
2
1
Figure 4. PORT2 pin layout
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[AKD4528]
2. Control Software Manual n Set-up of evaluation board and control software
1. Set up the AKD4528 according to previous term. 2. Connect IBM-AT compatible PC with AKD4528 by 10-line type flat cable (packed with AKD4528). Take care of the direction of 10pin header. (This control software does not operate on Windows NT, therefore please operate it on Windows95/98.) 3. Insert the floppy disk labeled "AKD4528 Control Program ver 1.0" into the floppy-disk drive. 4. Access the floppy-disk drive and double-click the icon of "AKD4528.exe" to set up the control program. 5. Then please evaluate according to the follows.
n Explanation of each buttons
1. [Port Setup]: 2. [Write default]: 3. [Function1]: 4. [Function2]: 5. [Write]: set up the printer port. initialize the register of AK4528. set up the dialog, which can be written by keyboard operation. set up the dialog, which can be written by keyboard operation. set up the dialog corresponding to each register, which can be written by mouse operation.
n Explanation of each dialog
1. [Function1 Dialog]: Address Box: Data Box: Dialog to write data by keyboard operation
Input registers address in 2 figures of hexadecimal. Input registers data in 2 figures of hexadecimal.
If you want to write the input data to AK4528, click "OK" button. If not, click "Cancel" button.
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[AKD4528]
2. [Function2 Dialog]:
Dialog to evaluate DATT
This dialog corresponds to only addr=08H and 09H Address Box: Input registers address in 2 figures of hexadecimal. Start Data Box: Input starts data in 2 figures of hexadecimal. End Data Box: Input end data in 2 figures of hexadecimal. Interval Box: Data is written to AK4528 by this interval. Step Box: Data changes by this step. Mode Select Box: If you check this check box, data reaches end data, and returns to start data. [Example] Start Data = 00, End Data = 09 Data flow: 00 01 02 03 04 05 06 07 08 09 09 08 07 06 05 04 03 02 01 00 If you do not check this check box, data reaches end data, but does not return to start data. [Example] Start Data = 00, End Data = 09 Data flow: 00 01 02 03 04 05 06 07 08 09 If you want to write the input data to AK4528, click "OK" button. If not, click "Cancel" button.
3. [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" or "1". If not, "L" or "0". If you want to write the input data to AK4528, click "OK" button. If not, click "Cancel" button.
n Operation flow
Keep the following flow surely. 1. Set up the control program according to explanation above. 2. Click "Port Setup" button. 3. Click "Write default" button. 4. Then set up the dialog and input data.
n Indication of data
Input data is indicated on the register map. Red letter indicates "H" or "1" and blue one indicates "L" or "0". Blank is the part that is not defined in the datasheet.
n Attention on the operation
If you set up Function1 or Function2 dialog, input data to all boxes. Attention dialog is indicated if you input data or address that is not specified in the datasheet or you click "OK" button before you input data. In that case set up the dialog and input data once more again. This operation does not need if you click "Cancel" button or check the check box.
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ASAHI KASEI
[AKD4528]
AK4353 Control Program operation manual
1. Connect IBM-AT compatible PC with Eva-board by 10-line type flat cable (packed with Eva-board). Take care of the direction of 10pin Header (Refer to manual of Eva-board). 2. Start up "WINDOWS 95" or "WINDOWS 98". 3. Insert the floppy disk packed with Eva-board into the floppy-disk drive. 4. Set up "MS-DOS" from start menu. 5. Change directory to the floppy-disk drive (ex.a:) at MS-DOS prompt. 6. Type "4353". 7. Then follow the displayed comment (See the following).
==================== <> ===================== Write data/ Display register map/ Reset etc.a loop =========================================================
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At first the following message is displayed: ****** AK4353 Control Program ver 3.0 , '00/2 ****** copyright(c) 2000, Asahi Kasei Microsystems co.,ltd. All rights reserved.
[AKD4528]
Then the following default register map is displayed (Loop starts from here): 3-wire Serial control mode CAD1-0=11 -------------------------------------ADDR = 00 : 0B ( 0 0 0 0 DIF2 DIF1 DIF0 RSTN ) ADDR = 01 : 01 ( 0 0 DFS1 DFS0 CKS2 CKS1 CKS0 RSTN ) ADDR = 02 : 94 ( PL3 PL2 PL1 PL0 DEM1 DEM0 ATC SMUTE) ADDR = 03 : FF ( ATT7 ATT6 ATT5 ATT4 ATT3 ATT2 ATT1 ATT0 ) ADDR = 04 : FF ( ATT7 ATT6 ATT5 ATT4 ATT3 ATT2 ATT1 ATT0 ) ADDR = 05 : 00 (0 0 0 0 0 0 V TXE ADDR = 06 : 00 ( 0 CS29 CS28 CS24 CS3 CS2 CS2 CS1 ) ADDR = 07 : 04 ( CS15 CS14 CS13 CS12 CS11 CS10 CS9 CS8 ) Input 1(Write), R(Reset), T(Table), I(Increment), D(Decrement) or S(Stop) :
)
1) If you input "1", you can write data to AK4353. You can write data to AK4353 Input Register Address (2 figure, hex) (00-07) = Input register address in 2 figures of hexadecimal. Then current data of this address is displayed: ADDR = 00 : 0B Input Register Data 0 0 0 0 0 0 (2 figure, hex) (00-FF) = (0 DIF2 0 DIF1 1 DIF0 0 RSTN ) 1 1
You can write control data to this address. Input control data in 2 figures of hexadecimal. Refer to datasheet of AK4353. Then the data written to this address is displayed: ADDR = 00 : 09 (0 0 0 0 0 0 0 DIF2 0 DIF1 1 DIF0 0 RSTN ) 0 1
2) If you input "R" or "r", this program writes default data to all register addresses.
3) If you input "T" or "t", current register map is displayed.
4) If you input "I" or "i", this program increment data of current address by 1 (only for addr=03H or 04H). You can increment ATT value by 1step.
5) If you input "D" or "d", this program decrement data of current address by 1 (only for addr=03H or 04H). You can decrement ATT value by 1step.
6) If you input "S" or "s", this program is terminated.
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[AKD4528]
AK4528 Measurement Result Conditions: Measurement unit: Audio Precision System Two Cascade MCLK: 256fs BICK: 64fs LRCK: 44.1kHz(DIR or DIT), or 96kHz(DIR or DIT) Power supply: VA=VD=VT=5.0V Interface: DIT or DIR Temperature: Room Temp. 1. ADC 1-1. fs = 44.1kHz
Parameter
Input signal
BW, filter
S/(N+D) 1kHz, -0.5dB 20kHz Dynamic range1kHz, -60dB 20kHz 20kHz, A-weighted S/N off 20kHz 20kHz, A-weighted
1-2. fs=96kHz
Results Lch Rch 98.4 98.2 102.6 102.6 107.4 107.5 102.8 102.8 107.5 107.5 Results Lch Rch 91.4 92.8 99.8 99.9 108.3 108.5 100.0 100.8 108.9 109.0
unit dB dB dB dB dB unit dB dB dB dB dB
Parameter
Input signal
BW, filter
S/(N+D) 1kHz, -0.5dB fs/2 Dynamic range1kHz, -60dB fs/2 fs/2, A-weighted S/N off fs/2 fs/2, A-weighted *Audio Precision does not support 40kHzLPF
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[AKD4528]
DAC 2-1. fs=44.1kHz
Parameter
Input signal
BW, filter
S/(D+N) 1kHz, 0dBFS 20kHz Dynamic range1kHz, -60dBFS 20kHz 22kHz, A-weighted S/N "0" data 20kHz 22kHz, A-weighted
2-2. fs=96kHz
Results Lch Rch 93.7 94.5 108.0 108.0 110.7 110.6 108.2 108.0 110.9 110.7 Results Lch Rch 91.2 91.8 104.8 104.9 110.0 110.0 104.9 104.8 110.2 109.9
unit dB dB dB dB dB unit dB dB dB dB dB
Parameter
Input signal
BW, filter
S/(N+D) 1kHz, 0dBFS 40kHz Dynamic range1kHz, -60dBFS 40kHz 80kHz, A-weighted S/N "0" data 40kHz 80kHz, A-weighted
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[AKD4528]
(fs=44.1kHz) 1. ADC
AKM
+0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20
A K 4 5 2 8 A D C F F T (Input Level=-0.5dBFS, fin=1kHz)
d B F S
50
100
200
500 Hz
1k
2k
5k
10k
20k
FFT (Input Level = -0.5dBFS, fin=1kHz)
AKM
+0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20
A K 4 5 2 8 A D C F F T (Input Level=-60dBFS, fin=1kHz)
d B F S
50
100
200
500 Hz
1k
2k
5k
10k
20k
FFT (Input Level = -60dBFS, fin=1kHz)
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[AKD4528]
(fs=44.1kHz)
AKM
+0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20
A K 4528 A D C F F T (noise floor)
d B F S
50
100
200
500 Hz
1k
2k
5k
10k
20k
FFT (noise floor)
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[AKD4528]
(fs=44.1kHz)
AKM
-80 -82 -84 -86 -88 -90 -92 d B F S -94 -96 -98 -100 -102 -104 -106 -108 -110 -140
AK4528 ADC THD + N vs Amplitude(fin=1kHz)
-130
-120
-110
-100
-90
-80
-70 dBr
-60
-50
-40
-30
-20
-10
+0
THD + N vs Amplitude (fin=1kHz)
AKM
-80 -82 -84 -86 -88 -90 -92 d B F S -94 -96 -98 -100 -102 -104 -106 -108 -110 20
AK4528 ADC THD + N vs Input Frequency(Input Level=0dBFS)
50
100
200
500 Hz
1k
2k
5k
10k
20k
THD + N vs Input Frequency (Input Level = -0.5dBFS)
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[AKD4528]
(fs=44.1kHz)
AKM
+0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 -140
A K 4528 A D C Linearity
-130
-120
-110
-100
-90
-80
-70 dBr
-60
-50
-40
-30
-20
-10
+0
Linearity (fin=1kHz)
AKM
+0 -0.05 -0.1 -0.15 -0.2 -0.25 -0.3 -0.35 -0.4 d B F S -0.45 -0.5 -0.55 -0.6 -0.65 -0.7 -0.75 -0.8 -0.85 -0.9 -0.95 -1 20 50 100 200 500 Hz 1k 2k 5k 10k 20k
A K 4 5 2 8 A D C Crosstalk
Frequency Response (Input Level=1kHz)
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[AKD4528]
(fs=44.1kHz)
AKM
-100 -102 -104 -106 -108 -110 -112 -114 -116 d B F S -118 -120 -122 -124 -126 -128 -130 -132 -134 -136 -138 -140 20 50 100 200 500 Hz 1k 2k 5k 10k 20k
A K 4 5 2 8 A D C Crosstalk
Crosstalk
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[AKD4528]
(fs=96kHz)
AKM
+0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 40
A K 4 5 2 8 A D C F F T(Input Level=-0.5dBFS, fin=1kHz)
d B F S
50
100
200
500
1k Hz
2k
5k
10k
20k
40k
FFT (Input Level = -0.5dBFS, fin=1kHz)
AKM
+0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 40
A K 4 5 2 8 A D C F F T(Input Level=-60dBFS, fin=1kHz)
d B F S
50
100
200
500
1k Hz
2k
5k
10k
20k
40k
FFT (Input Level = -60dBFS, fin=1kHz)
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[AKD4528]
(fs=96kHz)
AKM
+0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 40
A K 4528 A D C F F T(noise floor)
d B F S
50
100
200
500
1k Hz
2k
5k
10k
20k
40k
FFT (noise floor)
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[AKD4528]
(fs=96kHz)
AKM
-80 -82 -84 -86 -88 -90 -92 d B F S -94 -96 -98 -100 -102 -104 -106 -108 -110 -140
AK4528 ADC THD + N vs Amplitude(fin=1kHz)
-130
-120
-110
-100
-90
-80
-70 dBr
-60
-50
-40
-30
-20
-10
+0
THD + N vs Amplitude (fin=1kHz)
AKM
-70 -72 -74 -76 -78 -80 -82 -84 -86 d B F S -88 -90 -92 -94 -96 -98 -100 -102 -104 -106 -108 -110 40 50 100 200 500 1k Hz 2k 5k 10k 20k 40k
AK4528 ADC THD + N vs Input Frequency (Input Level=-0.5dBFS)
THD + N vs Input Frequency (input Level=-0.5dBFS)
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[AKD4528]
(fs=96kHz)
AKM
+0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 -140
A K 4528 A D C Linearity
-130
-120
-110
-100
-90
-80
-70 dBr
-60
-50
-40
-30
-20
-10
+0
Linearity (fin=1kHz)
AKM
+0 -0.05 -0.1 -0.15 -0.2 -0.25 -0.3 -0.35 -0.4 d B F S -0.45 -0.5 -0.55 -0.6 -0.65 -0.7 -0.75 -0.8 -0.85 -0.9 -0.95 -1 40 50 100 200 500 1k Hz 2k 5k 10k 20k 40k
AK 4528 A D C F requency Response
Frequency Response (Input Level=-0.5dBFS)
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[AKD4528]
(fs=96kHz)
AKM
-100 -102 -104 -106 -108 -110 -112 d B F S -114 -116 -118 -120 -122 -124 -126 -128 -130 40
A K 4 5 2 8 A D C Crosstalk(Upp er=Lch, Lower=Rch)
50
100
200
500
1k Hz
2k
5k
10k
20k
40k
Crosstalk
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[AKD4528]
(fs=44.1kHz) 2. DAC
AKM
+0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20
A K 4 5 2 8 D A C F F T (Input Level=0dBFS, fin=1kHz)
50
100
200
500 Hz
1k
2k
5k
10k
20k
FFT (Input Level=0dBFS, fin=1kHz)
AKM
+0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20
A K 4 5 2 8 D A C F F T (Input Level=0dBFS, fin=1kHz)
50
100
200
500 Hz
1k
2k
5k
10k
20k
FFT (Input Level=-60dBFS, fin=1kHz)
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[AKD4528]
(fs=44.1kHz)
AKM
+0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20
A K 4528 D A C F F T (Input=0data)
50
100
200
500 Hz
1k
2k
5k
10k
20k
FFT (Input = "0"data)
AKM
+0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 40 50
A K 4528 D A C F F T (Out-of-band noise)
100
200
500
1k
2k Hz
5k
10k
20k
50k
100k
FFT (out-of-band noise)
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[AKD4528]
(fs=44.1kHz)
AKM
-80 -82 -84 -86 -88 -90 -92 -94 -96 d B r A -98 -100 -102 -104 -106 -108 -110 -112 -114 -116 -118 -120 -140 -130 -120 -110 -100 -90 -80 -70 dBFS -60 -50 -40 -30 -20 -10 +0
AK4528 DAC THD + N vs Amplitude(fin=1kHz)
THD + N vs Amplitude (fin=1kHz)
AKM
-80 -82 -84 -86 -88 -90 -92 d B r A -98 -100 -102 -104 -106 -108 -110 20 -94 -96
AK4528 DAC THD + N vs Input Frequency (Input Level=0dBFS)
50
100
200
500 Hz
1k
2k
5k
10k
20k
THD + N vs Input Frequency (Input Level=0dBFS)
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[AKD4528]
(fs=44.1kHz)
AKM
+0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 -140
A K 4528 D A C Linearity
d B r A
-130
-120
-110
-100
-90
-80
-70 dBFS
-60
-50
-40
-30
-20
-10
+0
Linearity (fin=1kHz)
AKM
+0.5 +0.45 +0.4 +0.35 +0.3 +0.25 +0.2 +0.15 +0.1 d B r A +0.05 +0 -0.05 -0.1 -0.15 -0.2 -0.25 -0.3 -0.35 -0.4 -0.45 -0.5 2k 4k 6k 8k 10k Hz 12k 14k 16k 18k 20k
AK 4528 D A C F requency Response
Frequency Response (Input Level = 0dBFS)
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[AKD4528]
(fs=44.1kHz)
AKM
-100 -102 -104 -106 -108 -110 -112 d B r A -118 -120 -122 -124 -126 -128 -130 20 -114 -116
A K 4 5 2 8 D A C Crosstalk(Upp er=Rch, Lower=Lch)
50
100
200
500 Hz
1k
2k
5k
10k
20k
Crosstalk
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[AKD4528]
(fs=96kHz)
AKM
+0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 40
A K 4 5 2 8 D A C F F T ( Input Level=0dBFS, fin=1kHz, no tch ON)
50
100
200
500
1k Hz
2k
5k
10k
20k
40k
FFT (Input Level=0dBFS, fin=1kHz)
AKM
+0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 40
A K 4 5 2 8 D A C F F T ( Input Level=-60dBFS, fin=1kHz)
50
100
200
500
1k Hz
2k
5k
10k
20k
40k
FFT (Input Level=-60dBFS, fin=1kHz)
- 27 -
'00/06
ASAHI KASEI
[AKD4528]
(fs=96kHz)
AKM
+0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 40
A K 4528 D A C F F T ( Input 0data)
50
100
200
500
1k Hz
2k
5k
10k
20k
40k
FFT (Input = 0dBFS)
- 28 -
'00/06
ASAHI KASEI
[AKD4528]
(fs=96kHz)
AKM
-80 -82 -84 -86 -88 -90 -92 d B r A -98 -100 -102 -104 -106 -108 -110 -150 -94 -96
AK4528 DAC THD + N vs Amplitude(fin=1kHz)
-140
-130
-120
-110
-100
-90
-80 dBFS
-70
-60
-50
-40
-30
-20
-10
+0
THD + N vs Amplitude (fin=1kHz)
AKM
-80 -82 -84 -86 -88 -90 -92 d B r A -98 -100 -102 -104 -106 -108 -110 40 -94 -96
AK4528 DAC THD + N vs Input Frequency (Input Level=0dBFS)
50
100
200
500
1k Hz
2k
5k
10k
20k
40k
THD + N vs Input Frequency (Input Level=0dBFS)
- 29 -
'00/06
ASAHI KASEI
[AKD4528]
(fs=96kHz)
AKM
+0 -10 -20 -30 -40 -50 -60 d B r A -90 -100 -110 -120 -130 -140 -150 -150 -70 -80
A K 4528 D A C Linearity
-140
-130
-120
-110
-100
-90
-80 dBFS
-70
-60
-50
-40
-30
-20
-10
+0
Linearity (fin=1kHz)
AKM
+0.5 +0.45 +0.4 +0.35 +0.3 +0.25 +0.2 +0.15 +0.1 d B r A +0.05 +0 -0.05 -0.1 -0.15 -0.2 -0.25 -0.3 -0.35 -0.4 -0.45 -0.5 2.5k 5k 7.5k 10k 12.5k 15k 17.5k 20k Hz 22.5k 25k 27.5k 30k 32.5k 35k 37.5k 40k
AK 4528 D A C F requency Response
Frequency Response (Input Level=0dBFS)
- 30 -
'00/06
ASAHI KASEI
[AKD4528]
(fs=96kHz)
AKM
-100 -102 -104 -106 -108 -110 -112 d B r A -118 -120 -122 -124 -126 -128 -130 40 -114 -116
A K 4 5 2 8 D A C Crosstalk
50
100
200
500
1k Hz
2k
5k
10k
20k
40k
Crosstalk
- 31 -
'00/06
ASAHI KASEI
[AKD4528]
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.
- 32 -
'00/06
5
4
3
2
1
+15V
T1 NJM78M05FA 1 C16 0.1u GND IN OUT 3 C17 0.1u C18 + 47u
Bias
1
L6 10u 2 L2
+5V Digital Ground
JP2 GND Analog Ground
1
2
AK4528_+5V
D
2
(short)
D
L3
C19 2.2u +
1
C20 0.1u U1 1 VCOM AOUTR+ 28 AOUTR+
(short)
2
AINR+
2
AINR+
AOUTR-
27
AOUTR-
AINR-
3
AINR-
AOUTL+
26
AOUTL+
AINL+
4
AINL+
AOUTL-
25
AOUTL-
AINLC
5
AINL-
DGND
24 + DEM1 DEM0 PDN DFS 1 2 3 4 5 6 7 SW1 14 13 12 11 10 9 8 CSN/DIF C21 0.1u C22 10u AK4528_+5V
C
6
VREF
VD
23
+5V 1S1588 11
H L
7 + 2 3 5 6 11 10 14 13 1 15 D1 R13 10k U3E 10 13 U3F 12 PDN 4353_MCLK 4353_LRCK 4353_BICK P/S R14 100 9 C23 10u C24 0.1u
AGND
VT
22
8
VA
DEM1
21
SW3 PDN
C29 0.1u
74HCT14
74HCT14
P/S
DEM0
20
10 R15 100 R16 100
MCLK
PDN
19
4112_MCLK 4112_LRCK 4112_BICK 4112_SDTO
11
LRCK
DFS
18
+5V
12
BICK
CSN / DIF
17
B
4528_SDTO R18
13
SDTO
CCLK / CKS1
16
B
CCLK/CKS1
14 100
SDTI
CDTI/CKS0
15
AK4528_DIP CDTI/CKS0 RP1
AK4528
+5V R19 2.2k R20 2.2k R21 2.2k U5 1A 1B 2A 2B 3A 3B 4A 4B
7 6 5 4 3 2 1
P/S DEM1 DEM0 DFS DIF CKS1 CKS0
P/S DEM1 DEM0 DFS DIF CKS1 CKS0
47K
1 2 3 4 5
A
PORT2 10 CSN 9 CCLK 8 CDTI 7 6 CR-I/F
DIF CKS1 R24 470 R23 470 4353_CSN 4353_CCLK 4353_CDTI R22 470 CKS0
1Y 2Y 3Y 4Y
4 7 9 12
CSN/DIF CCLK/CKS1 CDTI/CKS0
A
P/S
A/B G 74HCT157
Title Size Document Number
AKD4528
AK4528
1
Rev
A3
Date:
5 4 3 2
C 1
of
Wednesday, April 12, 2000
Sheet
3
5
4
3
2
1
PORT3 5 IN 4 VCC 3 IF 2 6 6 GND 1 TOTX176(ADC) 5
R59 1k C66 0.1u
+5V
D
R60 5.1 C67 10u 4353_MCLK R2 100 4353_BICK R3 100 4528_SDTO R4 100 4353_LRCK PDN 4353_CSN 4353_CCLK 4353_CDTI + C68 0.1u U4 1 2 3 4 5 6 7 8 9 10 11 12 MCKO DZF TX NC DVDD AVDD DVSS AVSS MCKI VCOM BICK AOUTL SDTI AOUTR LRCK CAD0 PDN CAD1 CSN I2C SCL/CCLK TTL SDA/CDTI TST AK4353 24 23 22 21 20 19 18 17 16 15 14 13 C69 0.1u C71 0.1u C70 + 10u C50 10u + +5V +5V R12 5.1 +3.3V C2 10u C4 10u + C3 0.1u C5 0.1u U2 1 DVDD CM0/CDTO 28 CM0
D
R1 100
2
DVSS
CM1/CDTI
27
CM1
22p
X1 C6 11.2896MHz 2
22p C7
C
1
for 74HCT14, 74HCT157 +5V C25 47u + C26 0.1u C27 0.1u 6 5 PORT1 6 GND VCC GND 5 OUT TORX176 4 3 2 1 1 +5V L1 10u 2 R6 18k +3.3V C8 10u +
C10 0.1u
C11 + 10u
TORX176
1 R9 470 3 +3.3V
JP1 2 RX
COAX
B
J2 COAX
D2 1S1588 R11 75
C12 0.1u
+5V 1 2 3 4 5 6 7 SW2 14 13 12 11 10 9 8
+3.3V
1 C13 0.1u C14 47u +
GND
2
4112_DIP RP2
A
7 6 5 4 3 2 1
OCKS0 OCKS1 CM0 CM1 DIF0 DIF1 DIF2
OCKS0 OCKS1 CM0 CM1 4112_DIF0 4112_DIF1 4112_DIF2
Title
47k
Size
5
4
+ V/TX
3
TVDD
OCKS1/CCLK
26
OCKS1
4
V/TX
OCKS0/CSN
25
OCKS0
5
XTI
MCKO1
24
4112_MCLK +5V
6
XTO
MCKO2
23 R17 4528_SDTO 100 1 U3A 2 1k R7 4 1k R8 6 1k R10 8
B C
PDN
7
PDN
DAUX
22
R5
LE1
8
R
BICK
21 4112_BICK 20 4112_SDTO
74HCT14
ERF LE2
9 C9 0.1u
AVDD
SDTO
10
AVSS
LRCK
19
3 4112_LRCK
U3B
74HCT14
FS96 LE3
11
RX1
ERF
18 5 U3C
4112_DIF0
12
RX2/DIF0
FS96
17
74HCT14 16 +5V V/TX V 9 U3D
AUTO LE4
4112_DIF1
13
RX3/DIF1
P/SN
4112_DIF2
14
RX4/DIF2 AK4112A
AUTO
15
74HCT14
1k
V
T2
LP2950A
OUT
IN
3 C1 47u + C15 0.1u
+5V
A
Document Number
AKD4528
1
A3
Date:
3 2
Interface
Sheet
Rev
C
2
of
Tuesday, July 18, 2000
3
5
4
3
2
1
R25 4.7k
R26 4.7k R27 4.7k
D
VOP2 3 4 J3 LIN R30 560 C30 22u + R28 10k 4 R29 4.7k
D
VOP6 5 R31 330 AINL+ AOUTLC36 (short) VOPR34 220 J4 AOUTL 4 C33 1.5n 2 C34 3300p 3 R32 4.7k R33 200 C32 470p
U6A NJM5532 VOP+
8
8
1 U8A NJM5532
Bias R40 3.3k R39 330 AINLC38 0.1u
C
+ C35 22u
8
+
R37 4.7k
R38 200 VOP+ R41 4.7k
AOUTL+ C37 (short)
C39 10u
+
R35 4.7k
C40 470p
C
R42 4.7k
R43 4.7k R44 4.7k VOPVOP7 U7B R46 4.7k 4 2 3 U7A 1 NJM5532 8 VOP+ C44 1.5n 6 C45 3300p 5 R48 330 AINR+ AOUTRC47 (short) VOPB
J5 RIN R47 560
B
C41 22u +
R45 10k
4
NJM5532 VOP+
8
Bias R57 3.3k R56 330 AINRC42 0.1u C49 10u + R50 4.7k + R54 4.7k R55 200 VOP+ C48 (short) R58 4.7k C51 470p AOUTR+
-15V
A
for NJM5532 1 + C52 47u L4 2 + + + VOPC59 47u C58 0.1u
+15V 1 + L5 2 + C60 10u
8
for NJM5532 VOP+ + C61 0.1u C62 10u C63 0.1u +
Title
(short)
(short)
C53 10u
C54 0.1u
C55 10u
C56 0.1u
C57 10u
C64 10u
C65 0.1u
5
4
3
2
-
7 U8B NJM5532
+
+
+
+
5
-
+
-
6
4
R49 4.7k
R52 200
+
+
7 U6B NJM5532 VOP+
+
+
1
R36 10k
C43 470p
R51 220
J1 AOUTR
C46 22u
R53 10k
A
Size
Document Number
AKD4528
Analog_I/O
Sheet
1
Rev
A3
Date:
C
of
Thursday, April 13, 2000
3
3

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