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ASAHI KASEI
[AKD4588]
AKD4588
Evaluation board Rev.C for AK4588
FEATURE The AKD4588 is an evaluation board for the AK4588, a single chip 24bit CODEC that includes two channels of ADC and eight channels of DAC with internal DIR, DIT. The AKD4588 has the interface with AKM's A/D converter evaluation boards and AKM's D/A converter evaluation boards. Therefore, it is easy to evaluate the AK4588. The AKD4588 also has the digital audio interface and can achieve the interface with digital audio systems via opt-connector or BNC connector. Ordering guide
AKD4588 --Evaluation board for AK4588 (Cable for connecting with printer port of IBM-AT compatible PC and control software are packed with this. This control software dose not support Windows NT.)
FUNCTION On-board clock generator Compatible with 2 types of interface - Optical output/input and BNC input - Direct interface with AC3 decoder by 10pin header 10pin header for serial control interface
-12V +12V Regulator GND
LIN RIN
Input Buffer
Control Data
10pin Header
LOUT1 ROUT1 LOUT2 ROUT2 LOUT3 ROUT3 LOUT4 ROUT4 Output Buffer
BNC In
AK4588
Opt In Opt Out BNC Out Through Out AC3
10pin Header
B, C, U, V
10pin Header
Figure 1 AKD4588 Block Diagram * Circuit diagram and PCB layout are attached at the end of this manual. -12004/02
ASAHI KASEI
[AKD4588]
Analog Inputs
Analog inputs use J10 (LIN) and J9 (RIN) the analog inputs are single-ended. Each channel signal range is nominally 3.1Vpp@5V. It is proportional to VREFH (Vin=0.6 x VREFH). VREFH is connected to AVDD on the AKD4588.
Analog Outputs
J2 (LOUT1), J1 (ROUT1), J4 (LOUT2), J3 (ROUT2), J6 (LOUT3), J5 (ROUT3) J8 (LOUT4) and J7 (ROUT4) are used for analog outputs. The analog outputs are single-ended. Each channel signal range is nominally 3.0Vpp@5V. It is proportional to VREFH (Vin= 0.6 x VREFH). VREFH is connected to AVDD on the AKD4588.
Digital Inputs
Toslink (TORX176: PORT3) or BNC connector (J12) is used for digital inputs. When Toslink (TORX176: PORT3) is used, JP3 (RX0) set "OPT" side. When BNC connector (J12) is used, JP3 (RX0) set "BNC" side.
Digital Outputs
Digital outputs use Toslink (TOTX176: PORT2), BNC connector (J11). When Toslink (PORT2) is used for TX1, JP2 (TX1) set "OPT" side. When BNC connector (J11) is used, JP2 (TX1) set "BNC" side.
Operation sequence
1) Set up the power supply lines. (See "Other jumpers set-up".) Name Color Voltage Comments Attention Regulator, This jack is always needed. Power line +12V Red +12+15V Power supply for Op-amp. Regulator, -12V Blue This jack is always needed. Power line -12-15V Power supply for Op-amp. AGND Black 0V GND This jack is always needed. DGND Black 0V GND Table 1 Set up of power supply lines Each supply line should be distributed from the power supply unit. 2) Evaluation Mode (1) Evaluation of DAC part used internal DIR (2) Evaluation of ADC part used internal DIT (See the followings)
3) Set-up the evaluation modes, jumper pins and DIP switches. (See the followings.) 4) Power on The AK4588 should be reset once bringing SW1 (PDN) "L" upon power-up.
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ASAHI KASEI
[AKD4588]
Evaluation mode
Evaluation of DAC part used internal DIR 1-1. Digital input (Bi-phase input) 1-1-1. Digital input (Bi-phase input) is used by Optical Link PORT3 (TORX176). And Digital input (Bi-phase input) is used by BNC connector J12. Set the part of (DIR/DIT part) control resister software (addr00H: CM10=00) is (Clock Mode is PLL Mode.) This mode is able to operate by default setting. DIP-SW SW2-2 (MASTER) is ON. Audio Digital Interface Format is 24bit left justified at this time.(Refer datasheet.). 1-1-3. When Digital input (Bi-phase input) is used for RX0 pin, Optical Link PORT3 (TORX176) or BNC Connector J12 is used. JP3 (RX0) selects this. (Refer Figure 2)
1-1-2.
JP3 BNC OPT or RX0 Using BNC BNC
JP3 OPT
RX0 Using Toslink
Figure 2 Selection of Digital input (Bi-phase input)
1-2. Analog Output 1-2-1. Analog Output used BNC connector J2 (LOUT1), J1 (ROUT1), J4 (LOUT2), J3 (ROUT3), J6 (LOUT3), J8 (LOUT), J7 (ROUT4). 1-2-2. Analog Output can be selected of output buffer (OP-Amp: Gain=2) is using or not using. This is selected JP5 (LOUT1), JP4 (ROUT1), JP10 (LOUT2), JP6 (ROUT2), JP12 (LOUT3), JP11 (ROUT3), JP16 (LOUT4) and JP15 (ROUT4) (Refer Figure8~9.)
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ASAHI KASEI
[AKD4588]
(2) ADC Evaluation of using internal DIT 2-1. Analog input 2-1-1. BNC connectors J10 (LIN) and J9 (RIN) are used for analog input.
2-2. Digital output (bi-phase output) 2-2-1. PORT2 (TORX176) or J11 (TX1) is used for digital output.
2-2-2. Digital output (bi-phase output) is selected using Toslink (TOTX176: PORT2) or using BNC Connecter J11 (TX1) by JP2 (TX1) (Refer Figure3.)
JP2 BNC OPT or TX1 Using BNC BNC
JP2 OPT
TX1 Using Toslink
Figure 3 Selection of digital output (bi-phase)
2-2-3. Set the part of (DIR/DIT part) control resister software (addr00H: CM10=01) is (Clock Mode is X'tal Mode.) 2-2-4. Clock source is X1 (X'tal). 2-2-5. DIP-SW SW2-2 (MASTER) is ON. Audio Digital Interface Format is 24bit, left justified at this time. (Refer datasheet.).
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ASAHI KASEI
[AKD4588]
Setting of DIP-SW2
[SW2]: Setting of AK4588 No. 1 2 3 4 5 6 Pin MASTER XTL1 XTL0 CAD1 CAD0 Setting of Chip Address (ADC/DAC PART) Setting of Chip Address (ADC/DAC PART) Table 2 Setting of SW2 (No.3~6;ON: 1, OFF:0) Sampling frequency as follows AK4588 has two methods for detecting the sampling frequency. Clock is compared between recovered clock and X'tal oscillator by XTL1-0. This information outputs FS0, FS1, and FS2, FS3 bit for detecting the sampling frequency. The compared X'tal frequency is selected by setting of XTL1-0 (Refer Table 4.) When XTL1-0 is 11, X'tal oscillator is stopped and the encored sampling frequency information of channel status output FS0, FS1, FS2, FS3, PEM bit of resister control. XTL1 0 0 1 1 XTL0 0 1 0 1 X'tal Frequency 11.2896MHz 12.288MHz 24.576MHz (use channel status) Table 3 Reference X'tal frequency OFF Slave Mode ON Master Mode Default
OFF ON ON ON OFF ON
Reference X'tal frequency (Refer Table 4,5)
Default
XTL1, 0= "1,1" Consumer Register output fs mode Professional mode Clock comparison (Note 2) (Note 1) Byte3 Byte0 Bit7, Byte4 Bit6, FS3 FS2 FS1 FS0 Bit3, 2,1,0 6 5,4,3 0 0 0 0 44.1kHz 44.1kHz 0000 01 0000 0 0 0 1 Reserved Reserved 0001 (Others) 0 0 1 0 48kHz 48kHz 0010 10 0000 0 0 1 1 32kHz 32kHz 0011 11 0000 1 0 0 0 88.2kHz 88.2kHz (1000) 00 1010 1 0 1 0 96kHz 96kHz (1010) 00 0010 1 1 0 0 176.4kHz 176.4kHz (1100) 00 1011 1 1 1 0 192kHz 192kHz (1110) 00 0011 Note1: At least 3% range is identified as the value in the Table 4. In case of intermediate frequency of those two, FS3-0 bits indicate nearer value. When the frequency is much bigger than 192kHz or much smaller than 32kHz, FS3-0 bits may indicate "0001". Note2: When consumer mode, Byte3 Bit3-0 are copied to FS3-0 bits. Table 4 fs Information
Except XTL1,0= "1,1"
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ASAHI KASEI
[AKD4588]
Jumper setting
[JP1] (GND): Analog grand and digital grand Open: Analog grand and digital grand is separated. < Default> Short: Analog grand and digital grand is common. "DGND" jack is able to open at this time.
Operation of toggle switch.
[SW1](PDN): Resetting of AK4588. It must be "H" during operation this board.
Indication of LED
It turns on each pin when each pin output is "H". [LE1] (INT0): Indicate of AK4588's INT0 pin output. [LE2] (INT1): Indicate of AK4588's INT1 pin output.
Serial Control
The AK4588 can be controlled via the printer port (parallel port) of IBM-AT compatible PC. Connect PORT1 (uP-I/F) with PC by 10 wire flat cable packed with the AKD4588. Be careful connector direction. Flat cable should be connected 10-pin header, red line put on 10pin header 5 and 6 pin.
10 pin Connector
1
10 CSN
Connect PC
SCL / CCLK SDA / CDTI SDA(ACK) / CDTO
AKD4588
RED 10 wire flat cable 5 PORT1 uP-I/F 6
10 pin Header
Figure 4 The connection of 10 flat cable.
PORT5
Interface of AC3 decoder
AC3 decoder is able to be interface by using PORT5 (ADC/DAC). Three serial data is input through PORT5 form AC3 decoder input. PORT5 pin order is showed Figure 5
10 MCKOo BICK LRCK SDTO SDTI4 2 ADC/DAC
9 GND GND SDTI1 SDTI2 SDTI3 1
Figure 5 PORT5 pin order
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ASAHI KASEI
[AKD4588]
B, U, C, V output and V input
10
PORT4 BUCV
9 BOUT COUT UOUT VOUT VIN 1
B, U, C, V output and V input is used PORT4 (BUCV). PORT4 pin order is showed Figure 6.
GND GND GND GND GND 2
Figure 6 PORT4 pin order
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ASAHI KASEI
[AKD4588]
AKD4588 (DIR/DIT) part Control Program operation manual
Set-up of evaluation board and control software
1. Set up the AKD4588 (DIR/DIT) according to previous term. 2. Connect IBM-AT compatible PC with AKD4588 by 10-line type flat cable (packed with AKD4588). 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. Please refer "Installation Manual of Control Software Driver by AKM device control software". In case of Windows95/98/ME, this installation is not needed. This control software does not operate on Windows NT.) 3. Insert the CD-ROM labeled "AK4588 Evaluation Kit" into the CD-ROM drive. 4. Access the CD-ROM drive and double-click the icon of "AKD4588 (DIR/DIT)-1.exe" (address 00H-0FH) to set up the control program. 5. Then please evaluate according to the follows.
Operation flow
Keep the following flow. 1. Set up the control program according to explanation above. 2. Then set up the dialog and input data.
Explanation of each buttons
1. [Port Setup]: set up the printer port. 2. [Write default]: initialize the register of AK4588. 3. [All read]: read all registers. 4. [Read]: read data from each register. 5. [Write]: write data to each register. If you want to write the input data to AK4588, click "OK" button. If not, click "Cancel" button.
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.
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ASAHI KASEI
[AKD4588]
AK4588 (ADC/DAC) part Control Program Operation Manual
Set-up of evaluation board and control software
This evaluation board does not support to I2C control. 1. Set up the AKD4588 according to above mentioned setting. 2. Connect IBM-AT compatible PC with AKD4588 by 10-line type flat cable (packed with AKD4588). Take care of the direction of 10pin header. (Please install the driver in the CD-ROM-disk when this control software is used on Windows 2000/XP. Please refer "Installation Manual of Control Software Driver by AKM device control software". In case of Windows95/98/ME, this installation is not needed. This control software does not operate on Windows NT.) 3. Insert the CD-ROM-disk labeled "AKD4588 Control Program ver 1.0" into the CD-ROM-disk drive. 4. Access the CD-ROM-disk drive and double-click the icon of "AKD4588 (DIR/DIT)-1.exe" (address 00H-0FH) to set up the control program. 5. Then please evaluate according to the followings. Attention: Please use fixed "CAD1-0=01".
Operation flow
Keep the following flow. 1. Set up the control program. 2. Then set up the dialog and input data. If you want to write the input data to AK4588, click "OK" button. If not, click "Cancel" button.
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 AK4588. Dialog to write data by keyboard operation. Dialog to evaluate IPGA and ATTL/ATTR/ATTM. Write data to each register.
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 AK4588, click "OK" button. If not, click "Cancel" button. 2. [Function2 Dialog]: Dialog to evaluate IPGA and ATTL/ATTR/ATTM
This dialog corresponds to only addr=0BH, 0CH and 0DH. Address Box: -9Input register address in 2 figures of hexadecimal. 2004/02
ASAHI KASEI
[AKD4588]
Start Data Box: Input start data in 2 figures of hexadecimal. End Data Box: Input end data in 2 figures of hexadecimal. Interval Box: Data is written to AK4588 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 AK4588, 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 AK4588, click "OK" button. If not, click "Cancel" button.
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.
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. These operations does not need if you click "Cancel" button or check the check box.
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ASAHI KASEI
[AKD4588]
Measure Result
1) ADC part [Measurement condition] * Measurement unit : Audio Precision System two Cascade (AP2) : fs=48kHz:256fs, fs=96kHz:256fs * MCLK : 64fs * BICK : 48kHz, 96kHz * fs : 10Hz20kHz (fs=48kHz), 10Hz40kHz (fs=96kHz) * BW : 24bit * Bit * Power Supply : AVDD=PVDD=DVDD=5V, TVDD=3.3V : Internal DIT (48kHz, 96kHz), PSIA (192kHz) * Interface : Room * Temperature fs=48kHz Parameter S/(N+D) DR DR S/N S/N fs=96kHz Parameter S/(N+D) DR DR S/N S/N
Input signal 1kHz, -0.5dB 1kHz, -60dB 1kHz, -60dB No signal No signal
Measurement filter 20kLPF 20kLPF 20kLPF, A-weighted 20kLPF, A-weighted 20kLPF, A-weighted
Results 96.6 dB 99.5 dB 102.3 dB 99.6 dB 102.6 dB
Input signal 1kHz, -0.5dB 1kHz, -60dB 1kHz, -60dB No signal No signal
Measurement filter fs/2 fs/2 20kLPF, A-weighted fs/2 20kLPF, A-weighted
Results 91.7 dB 97.7 dB 104.2 dB 97.7 dB 104.5 dB
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ASAHI KASEI
[AKD4588]
2) DAC part [Measurement condition] * Measurement unit : Audio Precision System two Cascade (AP2) : 256fs (48kHz, 96kHz), 128fs (192kHz) * MCLK : 64fs * BICK : 48kHz, 96kHz, 192kHz * fs : 24bit * Resolution * Power Supply : AVDD=PVDD=DVDD=5V, TVDD=3.3V : Internal DIR (48kHz, 96kHz), PSIA (192kHz) * Interface : Room * Temperature fs=48kHz Parameter S/(N+D) DR DR S/N S/N fs=96kHz Parameter S/(N+D) DR DR S/N S/N fs=192kHz Parameter S/(N+D) DR DR S/N S/N
Input signal 1kHz, 0dB 1kHz, -60dB 1kHz, -60dB "0" data "0" data
Measurement filter 20kLPF 20kLPF 20kLPF, A-weighted 20kLPF 20kLPF, A-weighted
Results 96.4 dB 102.9 dB 105.7 dB 102.9 dB 105.9 dB
Input signal 1kHz, 0dB 1kHz, -60dB 1kHz, -60dB "0" data "0" data
Measurement filter 40kLPF 40kLPF 22kLPF, A-weighted 40kLPF 22kLPF, A-weighted
Results 94.5 dB 99.8 dB 104.5 dB 100.7 dB 105.3 dB
Input signal 1kHz, 0dB 1kHz, -60dB 1kHz, -60dB "0" data "0" data
Measurement filter 40kLPF 40kLPF 22kLPF, A-weighted 40kLPF 22kLPF, A-weighted
Results 94.0 dB 100.8 dB 105.6 dB 100.7 dB 105.8 dB
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ASAHI KASEI
[AKD4588]
1) ADC [Measurement condition] * Measurement Unit * MCLK * BICK * fs * BW * Resolution * Power Supply * Interface * Temperatur
: Audio Precision System two Cascade : 256fs(fs=44.1kHz), 256fs(fs=96kHz) : 64fs : 44.1kHz, 96kHz : 20Hz20kHz (fs=44.1kHz), 40Hz40kHz (fs=96kHz) : 24bit : AVDD=PVDD=DVDD=5V, TVDD=3.3V : Internal DIR (fs=44.1kHz, 96kHz) : Room
fs=44.1kHz Figure 7 FFT (1kHz, 0dBFS input) Figure 8 FFT (1kHz, -60dBFS input) Figure 9 FFT (noise floor) Figure 10 THD+N vs Input Level (fin=1kHz) Figure 11 THD+N vs fin (Input level=0dBFS) Figure 12 Linearity (fin=1kHz) Figure 13 Frequency Response (Input level=0dBFS) Figure 14 Cross-talk (Input level=0dBFS) fs=96kHz Figure 15 FFT (1kHz, 0dBFS input) Figure 16 FFT (1kHz, -60dBFS input) Figure 17 FFT (noise floor) Figure 18 THD+N vs Input Level (fin=1kHz) Figure 19 THD+N vs fin (Input level=0dBFS) Figure 20 Linearity (fin=1kHz) Figure 21 Frequency Response (Input level=0dBFS) Figure 22 Cross-talk (Input level=0dBFS) FFT point=16384, Avg=8, Window=Equirriple
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ASAHI KASEI
[AKD4588]
2) DAC [Measurement Condition] * Measurement Unit * MCLK * BICK * fs * BW * Resolution * Power Supply * Interface * Temperature
: Audio Precision System two Cascade : 256fs(fs=44.1kHz), 256fs(fs=96kHz), 128fs(fs=192kHz) : 64fs : 44.1kHz, 96kHz, 192kHz : 20Hz20kHz (fs=44.1kHz), 40Hz40kHz (fs=96kHz), 40Hz80kHz (fs=192kHz) : 24bit : AVDD=PVDD=DVDD=5V, TVDD=3.3V : Internal DIR (48kHz, 96kHz), PSIA (192kHz) : Room
fs=44.1kHz Figure 23 FFT (1kHz, 0dBFS input) Figure 24 FFT (1kHz, -60dBFS input) Figure 25 FFT (noise floor) Figure 26 FFT (out-of-band noise) Figure 27 THD+N vs Input Level (fin=1kHz) Figure 28 THD+N vs fin (Input level=0dBFS) Figure 29 Linearity (fin=1kHz) Figure 30 Frequency Response (Input level=0dBFS) Figure 31 Cross-talk (Input level=0dBFS) fs=96kHz Figure 32 FFT (1kHz, 0dBFS input) Figure 33 FFT (1kHz, -60dBFS input) Figure 34 FFT (noise floor) Figure 35 FFT (outband noise) Figure 36 THD+N vs Input Level (fin=1kHz) Figure 37 THD+N vs fin (Input level=0dBFS) Figure 38 Linearity (fin=1kHz) Figure 39 Frequency Response (Input level=0dBFS) Figure 40 Cross-talk (Input level=0dBFS) fs=192kHz Figure 41 FFT (1kHz, 0dBFS input) Figure 42 FFT (1kHz, -60dBFS input) Figure 43 FFT (noise floor) Figure 44 FFT (outband noise) Figure 45 THD+N vs Input Level (fin=1kHz) Figure 46 THD+N vs fin (Input level=0dBFS) Figure 47 Linearity (fin=1kHz) Figure 48 Frequency Response (Input level=0dBFS) Figure 49 Cross-talk (Input level=0dBFS) FFT point=16384, Avg=8, Window=Equirriple
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ASAHI KASEI
[AKD4588]
1.ADC (ADC fs=48kHz)
AKM
+0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20 50 100 200 500 Hz 1k 2k 5k 10k 20k
Red=Lch, Blue=Rch
Figure 7 (Input=-0.5dBFS, fin=1kHz)
AKM
+0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20 50 100 200
Red=Lch, Blue=Rch
500 Hz
1k
2k
5k
10k
20k
Figure 8 (Input=-60dBFS, fin=1kHz)
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2004/02
ASAHI KASEI
[AKD4588]
(ADC fs=48kHz)
AKM
+0 -10 -20 -30 -40 -50 -60 d B F S -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20 50 100 200 500 Hz 1k 2k 5k 10k 20k
Red=Lch, Blue=Rch
Figure 9 (noise floor)
AKM
-80 -82.5 -85 -87.5 -90 -92.5 -95 d B F S -97.5 -100 -102.5 -105 -107.5 -110 -112.5 -115 -117.5 -120 -140 -130 -120 -110 -100 -90
Red=Lch, Blue=Rch
-80
-70 dBr
-60
-50
-40
-30
-20
-10
+0
Figure 10 THD + N vs Amplitude (fin=1kHz)
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2004/02
ASAHI KASEI
[AKD4588]
(ADC fs=48kHz)
AKM
-80 -82.5 -85 -87.5 -90 -92.5 -95 d B F S -97.5 -100 -102.5 -105 -107.5 -110 -112.5 -115 -117.5 -120 20 50 100 200 500 Hz 1k 2k 5k 10k 20k
Red=Lch, Blue=Rch
Figure 11 THD + N vs Input Frequency (Input=-0.5dBFS)
AKM
+0 -10 -20 -30 -40 -50 d B F S -60 -70 -80 -90 -100 -110 -120 -130 -140 -140
Red=Lch, Blue=Rch
-130
-120
-110
-100
-90
-80
-70 dBr
-60
-50
-40
-30
-20
-10
+0
Figure 12 Linearity (fin=1kHz)
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ASAHI KASEI
[AKD4588]
(ADC fs=48kHz)
AKM
+0 -0.1
Red=Lch, Blue=Rch
-0.2
-0.3
-0.4 d B F S
-0.5
-0.6
-0.7
-0.8
-0.9
-1 20
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 13 Frequency Response(Input Level=-0.5dBFS) (including input RC filter)
AKM
-80 -85 -90 -95 -100 -105 d B F S -110 -115 -120 -125 -130 -135 -140 -145 -150 20
Red=Rch->Lch, Blue=Lch->Rch
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 14 Crosstalk (Upper@1k = Rch, Lower@1k = Lch)
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ASAHI KASEI
[AKD4588]
(ADC 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 40 50 100 200 500 1k Hz 2k 5k 10k 20k 40k
Red=Lch, Blue=Rch
Figure 15 FFT (Input=-0.5dBFS, fin=1kHz)
AKM
+0 -10 -20 -30 -40 -50 -60 -70 d B F S -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 40 50 100 200 500
Red=Lch, Blue=Rch
1k Hz
2k
5k
10k
20k
40k
Figure 16 FFT (Input=-60dBFS, fin=1kHz)
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2004/02
ASAHI KASEI
[AKD4588]
(ADC 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 40 50 100 200 500
Red=Lch, Blue=Rch
1k Hz
2k
5k
10k
20k
40k
Figure 17 FFT (Noise floor)
AKM
-80 -82.5 -85 -87.5 -90 -92.5 -95 d B F S -97.5 -100 -102.5 -105 -107.5 -110 -112.5 -115 -117.5 -120 -140 -130 -120 -110 -100 -90
Red=Lch, Blue=Rch
-80
-70 dBr
-60
-50
-40
-30
-20
-10
+0
Figure 18 THD + N vs Amplitude (fin=1kHz)
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2004/02
ASAHI KASEI
[AKD4588]
(ADC fs=96kHz)
AKM
-80 -82.5 -85 -87.5 -90 -92.5 -95 d B F S -97.5 -100 -102.5 -105 -107.5 -110 -112.5 -115 -117.5 -120 40 50 100 200 500 1k Hz 2k 5k 10k 20k 40k
Red=Lch, Blue=Rch
Figure 19 THD + N vs Input Frequency (Input Level=-0.5dBFS)
AKM
+0 -10 -20 -30 -40 -50 d B F S -60 -70 -80 -90 -100 -110 -120 -130 -140 -140
Red=Lch, Blue=Rch
-130
-120
-110
-100
-90
-80
-70 dBr
-60
-50
-40
-30
-20
-10
+0
Figure 20 Linearity (fin=1kHz)
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2004/02
ASAHI KASEI
[AKD4588]
(ADC fs=96kHz)
AKM
+0 -0.1
Red=Lch, Blue=Rch
-0.2
-0.3
-0.4 d B F S
-0.5
-0.6
-0.7
-0.8
-0.9
-1 40
50
100
200
500
1k Hz
2k
5k
10k
20k
40k
Figure 21 Frequency Response (Input Level=-0.5dBFS) (including input RC filter)
AKM
-80 -85 -90 -95 -100 -105 d B F S -110 -115 -120 -125 -130 -135 -140 -145 -150 40
Red=Rch->Lch, Blue=Lch->Rch
50
100
200
500
1k Hz
2k
5k
10k
20k
40k
Figure 22 Crosstalk (Upper = Rch, Lower = Lch)
- 22 -
2004/02
ASAHI KASEI
[AKD4588]
2.DAC (DAC fs=48kHz)
AKM
+0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20 50 100 200 500 Hz 1k 2k 5k 10k 20k
FFT Red=Lch, Blue=Rch
Figure 23 FFT (1kHz, 0dBFS input)
AKM
+0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20 50 100 200
FFT Red=Lch, Blue=Rch
500 Hz
1k
2k
5k
10k
20k
Figure 24 FFT (1kHz, -60dBFS input)
- 23 -
2004/02
ASAHI KASEI (DAC fs=48kHz)
AKM
+0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20 50 100 200 500 Hz 1k 2k 5k
[AKD4588]
FFT Red=Lch, Blue=Rch
10k
20k
Figure 25 FFT (noise floor)
AKM
+0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 100 200 500 1k
Red=Lch, Blue=Rch
2k Hz
5k
10k
20k
50k
100k
Figure 26 FFT (out-of-band noise)
- 24 -
2004/02
ASAHI KASEI (DAC fs=48kHz)
AKM
-80 -82.5 -85 -87.5 -90 -92.5 -95 d B r A -97.5 -100 -102.5 -105 -107.5 -110 -112.5 -115 -117.5 -120 -140 -130 -120 -110 -100 -90 -80 -70 dBFS -60 -50 -40 -30 -20
[AKD4588]
Red=Lch, Blue=Rch
-10
+0
Figure 27 THD+N vs Input Level (fin=1kHz)
AKM
-80 -82.5 -85 -87.5 -90 -92.5 -95 d B r A -97.5 -100 -102.5 -105 -107.5 -110 -112.5 -115 -117.5 -120 20 50 100 200
Red=Lch, Blue=Rch
500 Hz
1k
2k
5k
10k
20k
Figure 28 THD+N vs fin (Input level=0dBFS)
- 25 -
2004/02
ASAHI KASEI (DAC fs=48kHz)
AKM
+0 -10 -20 -30 -40 -50 d B r A -60 -70 -80 -90 -100 -110 -120 -130 -140 -140
[AKD4588]
Red=Lch, Blue=Rch
-130
-120
-110
-100
-90
-80
-70 dBFS
-60
-50
-40
-30
-20
-10
+0
Figure 29 Linearity (fin=1kHz)
AKM
+0.5 +0.4
Red=Lch, Blue=Rch
+0.3
+0.2
+0.1 d B r A -0.1
+0
-0.2
-0.3
-0.4
-0.5
2k
4k
6k
8k
10k Hz
12k
14k
16k
18k
20k
Figure 30 Frequency Response (Input level=0dBFS)
- 26 -
2004/02
ASAHI KASEI (DAC fs=48kHz)
AKM
-80 -82.5 -85 -87.5 -90 -92.5 -95 d B r A -97.5 -100 -102.5 -105 -107.5 -110 -112.5 -115 -117.5 -120 20 50 100 200 500 Hz 1k 2k 5k
[AKD4588]
Red=Lch->Rch, Blue=Rch->Lch
10k
20k
Figure 31 Cross-talk (Input level=0dBFS)
- 27 -
2004/02
ASAHI KASEI
[AKD4588]
(DAC 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 50 100 200 500 1k Hz 2k 5k 10k 20k 40k
Red=Lch, Blue=Rch
Figure 32 FFT (1kHz, 0dBFS input)
AKM
+0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 40 50 100 200 500
Red=Lch, Blue=Rch
1k Hz
2k
5k
10k
20k
40k
Figure 33 FFT (1kHz, -60dBFS input)
- 28 -
2004/02
ASAHI KASEI
[AKD4588]
(DAC 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 50 100 200 500 1k Hz 2k 5k 10k 20k 40k
Red=Lch, Blue=Rch
Figure 34 FFT (noise floor)
AKM
+0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 100 200 500 1k
Red=Lch, Blue=Rch
2k Hz
5k
10k
20k
50k
100k
Figure 35 FFT (out band noise)
- 29 -
2004/02
ASAHI KASEI
[AKD4588]
(DAC fs=96kHz)
AKM
-80 -82.5 -85 -87.5 -90 -92.5 -95 d B r A -97.5 -100 -102.5 -105 -107.5 -110 -112.5 -115 -117.5 -120 -140 -130 -120 -110 -100 -90 -80 -70 dBFS -60 -50 -40 -30 -20 -10 +0
Red=Lch, Blue=Rch
Figure 36 THD+N vs Input Level (fin=1kHz)
AKM
-80 -82.5 -85 -87.5 -90 -92.5 -95 d B r A -97.5 -100 -102.5 -105 -107.5 -110 -112.5 -115 -117.5 -120 40 50 100 200 500
Red=Lch, Blue=Rch
1k Hz
2k
5k
10k
20k
40k
Figure 37 THD+N vs fin (Input level=0dBFS)
- 30 -
2004/02
ASAHI KASEI
[AKD4588]
(DAC fs=96kHz)
AKM
+0 -10 -20 -30 -40 -50 d B r A -60 -70 -80 -90 -100 -110 -120 -130 -140 -140
Red=Lch, Blue=Rch
-130
-120
-110
-100
-90
-80
-70 dBFS
-60
-50
-40
-30
-20
-10
+0
Figure 38 Linearity (fin=1kHz)
AKM
+0.4 +0.2
Red=Lch, Blue=Rch
+0
-0.2 d B r A
-0.4
-0.6
-0.8
-1
-1.2
-1.4 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
Figure 39 Frequency Response (Input level=0dBFS)
- 31 -
2004/02
ASAHI KASEI
[AKD4588]
(DAC fs=96kHz)
AKM
-80 -82.5 -85 -87.5 -90 -92.5 -95 d B r A -97.5 -100 -102.5 -105 -107.5 -110 -112.5 -115 -117.5 -120 40 50 100 200 500 1k Hz 2k 5k 10k 20k 40k
Red=Lch->Rch, Blue=Rch->Lch
Figure 40 Cross-talk (Input level=0dBFS)
- 32 -
2004/02
ASAHI KASEI
[AKD4588]
(DAC fs=192kHz)
Red=Lch, Blue=Rch
+0 -20
-40
-60 d B r A -100
-80
-120
-140
-160 40 50
100
200
500
1k
2k Hz
5k
10k
20k
50k
80k
Figure 41 FFT (1kHz, 0dBFS input)
Red=Lch, Blue=Rch
+0 -20
-40
-60 d B r A
-80
-100
-120
-140
-160 40 50
100
200
500
1k
2k Hz
5k
10k
20k
50k
80k
Figure 42 FFT (1kHz, -60dBFS input)
- 33 -
2004/02
ASAHI KASEI
[AKD4588]
(DAC fs=192kHz)
Red=Lch, Blue=Rch
+0 -20
-40
-60 d B r A -100
-80
-120
-140
-160 40 50
100
200
500
1k
2k Hz
5k
10k
20k
50k
80k
Figure 43 FFT (noise floor)
Red=Lch, Blue=Rch
+0 -20
-40
-60 d B r A
-80
-100
-120
-140
-160 100
200
500
1k
2k Hz
5k
10k
20k
50k
100k
Figure 44 FFT (outband noise)
- 34 -
2004/02
ASAHI KASEI
[AKD4588]
(DAC fs=192kHz)
Red=Lch, Blue=Rch
-80 -85
-90
-95 d B r A -105
-100
-110
-115
-120 -140
-130
-120
-110
-100
-90
-80
-70 dBFS
-60
-50
-40
-30
-20
-10
+0
Figure 45 THD+N vs Input Level (fin=1kHz)
Red=Lch, Blue=Rch
-80 -85
-90
-95 d B r A
-100
-105
-110
-115
-120 40 50
100
200
500
1k
2k Hz
5k
10k
20k
50k
80k
Figure 46 THD+N vs fin (Input level=0dBFS)
- 35 -
2004/02
ASAHI KASEI
[AKD4588]
(DAC fs=192kHz)
Red=Lch, Blue=Rch
+0 -10 -20 -30 -40 -50 d B r A -60 -70 -80 -90 -100 -110 -120 -130 -140 -140 -130 -120 -110 -100 -90 -80 -70 dBFS -60 -50 -40 -30 -20 -10 +0
Figure 47 Linearity (fin=1kHz)
Red=Lch, Blue=Rch
+1 +0.5 +0 -0.5 d B r A -1 -1.5 -2 -2.5 -3 -3.5 -4
5k
10k
15k
20k
25k
30k
35k
40k Hz
45k
50k
55k
60k
65k
70k
75k
80k
Figure 48 Frequency Response (Input level=0dBFS)
- 36 -
2004/02
ASAHI KASEI
[AKD4588]
(DAC fs=192kHz)
Red=Rch->Lch, Blue=Lch->Rch
-70 -75 -80 -85 d B r A -90 -95 -100 -105 -110 -115 -120 40 50
100
200
500
1k
2k Hz
5k
10k
20k
50k
80k
Figure 49 Cross-talk (Input level=0dBFS)
- 37 -
2004/02
ASAHI KASEI
[AKD4588]
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 dev ices or systems containing them, may require an export license or other official approv al under the law and regulations of the country of export pertaining to customs and tariff s, currency exchange, or strategic materials. * AKM products are neither intended nor authorized for use as critical components in any saf ety, life support, or other hazard related dev ice or system, and AKM assumes no responsibility relating to any such use, except with the express written consent of the Representativ e Director of AKM. As used here: (a) A hazard related device or system is one designed or intended for lif e 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 saf ety or effectiveness of the device or system containing it, and which must therefore meet v ery 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 abov e 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.
- 38 -
2004/02
5
4
3
2
1
MCLK
CAD1
CAD0
INT0
TX1
VIN
D
R1 INT1 R5 BOUT 100_C 100_C
R2 0_C
R3 0_C
PVDD
C1 10u C2 0.1u + R4 12k
D
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62 NC
TVDD + DVDD C3 C4 10u 0.1u 1 2 + C5 10u C6 0.1u 4 XTI
C
INT0
MCLK
VIN
CAD1
CAD0
TEST2
DAUX2
PVDD
RX7
RX6
RX5
RX4
R
RX3
PVSS
RX2
TX1
TX0
I2C
61
RX0 TEST1 RX1 NC RX0 AVSS AVDD VREFH VCOM 60 59 58 + 57 56 55 54 53 + 52 51 50 49 48 47 46 45 44 43 42 41 ROUT3 LOUT2 ROUT2 LOUT1
B
INT1 BOUT TVDD DVDD DVSS XTO XTI TEST3 MCKO2 MCKO1 COUT UOUT VOUT SDTO2 BICK2 LRCK2 SDTO1 BICK1 LRCK1 CCLK / SCL CDTO
3
XTO
AVDD C7 RIN 22u C8 + 0.1u C10 0.1u + C11 2.2u C9 10u R7 330_C R6 330_C
C
5 6 7 R8 NC_C MCLK R9 100_C 9 10 R12100_C 8
U1
RIN LIN
C12 LIN 22u R11 330_C R10 330_C
COUT R13100_C UOUT R14100_C VOUT R15100_C R16100_C
B
11 12 13 14 15 16 17 18 19 R21100_C 20
AK4588
NC ROUT1 NC LOUT1 NC ROUT2 NC LOUT2 NC
ROUT1
BICK2 R17100_C LRCK2 R18100_C
DIR_DAC
R19 0_C SDTO
In case of 10pin_DAC, open JP10
DZF2 / OVF
CDTI / SDA
R20 NC_C
10pin_ADC
MASTER
ROUT4
DAUX1
ROUT3 LOUT3 39 NC NC 40
LOUT4 35
SDTI4
SDTI3
SDTI2
SDTI1
DZF1
XTL1
XTL0
CSN
PDN
21
22
23
24
25
26
27
28
29
30
31
32
33
34
36
NC
37
CDTO
A A
TST1
TST2
Title
38
CCLK/SCL
CDTI/SDA
MASTER
ROUT4
XTL1
SDTI3
SDTI2
SDTI1
XTL0
LOUT4
LOUT3
SDTI4
Size
Document Number
AKD4588
AK4588
1
PDN
CSN
A3
Date:
Rev B
Saturday, December 20, 2003 Sheet
1
of
4
5
4
3
2
5
4
3
2
1
D
D
8
8
ROUT1 R25 10k
3+ 24
R22 220 C16 3300p
J1 ROUT1
LOUT1 R26 10k
5+ 64
R23 220 C17 3300p
J2 LOUT1
8
C13 22u +
P_12V U2A NJM4580 1
C14 22u +
P_12V U2B NJM4580 7
C15 22u + ROUT2 R27 10k
3+ 24
P_12V U3A NJM4580 1
R24 220 C18 3300p
J3 ROUT2
N_12V C19 330p
N_12V C20 330p
N_12V C21 330p
R31 4.7K
R28 4.7k
R32 4.7K
R29 4.7k
R33 4.7K
R30 4.7k
C
C
8
8
LOUT2 R37 10k
5+ 64
R34 220 C25 3300p
J4 LOUT2
ROUT3 R38 10k
3+ 24
R35 220 C26 3300p
J5 ROUT3
8
C22 22u +
P_12V U3B NJM4580 7
C23 22u +
P_12V U4A NJM4580 1
C24 22u + LOUT3 R39 10k
5+ 64
P_12V U4B NJM4580 7
R36 220 C27 3300p
J6 LOUT3
N_12V C28 330p
N_12V C29 330p
N_12V C30 330p
R43 4.7K
R40 4.7k
R44 4.7K
R41 4.7k
R45 4.7K
R42 4.7k
B
B
P12V L1 C31 47u + (short) for NJM4580 x5 P_12V + C32 10u C42 22u + ROUT4 R48 10k P_12V U5A NJM4580 1 C43 22u + LOUT4 R49 10k P_12V U5B NJM4580 7 N12V R47 220 C56 3300p J8 LOUT4 L2 + C44 47u (short) for NJM4580 x5 N_12V C45 10u C46 0.1u C47 10u C48 0.1u C49 10u C50 0.1u C51 10u C52 0.1u C53 10u + + + + + C54 0.1u C33 0.1u + C34 10u C35 0.1u + C36 10u C37 0.1u + C38 10u C39 0.1u + C40 10u C41 0.1u
8
3+ 24
R46 220 C55 3300p
J7 ROUT4
5+ 64
N_12V C57 330p
N_12V C58 330p
A
8
R52 4.7K
R50 4.7k
R53 4.7K
R51 4.7k
A
Title Size Document Number
AKD4588
AOUT
Sheet
1
Rev
A3
Date:
5 4 3 2
B 2
of
Saturday, December 20, 2003
4
5
4
3
2
1
JP1 VD R54 VD R57 10k 10k R55 R56 R58 470 470 470 2 3 4 5 6 7 8 9 1 19 U6 A1 A2 A3 A4 A5 A6 A7 A8 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 18 17 16 15 14 13 12 11 for 74HCT541, 74HC14 + C61 C62 0.1u 0.1u GND Digital Ground C60 47u Analog Ground C59 2 5p C63 5p 1 XTI X1 XTO 12.288MHz
D
D
1 2 3 4 5
R59 10k PORT1 10 CSN 9 SCL/CCLK R60 8 SDA/CDTI 51 7 SDA(ACK)/CDTO 6 uP-I/F
G1 G2 74HCT541
R61 R62 R63
8
100 100
CCLK/SCL CDTI/SDA RIN
RIN
1 N_12V
+3 -2 4 R64 560
LIN
LIN
7 N_12V
8
100
CSN
P_12V
U7A NJM5532
J9 RIN
P_12V
U7B NJM5532
+5 -6 4 R65 560
J10 LIN
CDTO
C
VD D1 1S1588
R66 10k 1 U8A 2 3 U8B 4
R67
PDN
PDN
H
L
74HC14 C65 0.1u
74HC14
100_C
PORT2 5 IN VCC IF 6 6 GND TOTX176 5
4 3 2 1 R68 1k
JP2 TX1 VD
C
OPT
TX1
BNC
C64 0.1u
SW1 PDN
J11 TX1
T1 DA02-F
R69 240
LE1 VD INT0 LE2 INT1
B
R71 1k_C R72 1k_C
U8C 6 5 INT0 74HC14 U8D 8 9 74HC14
1:1
R70 150
INT1
B
VD U8E SW2
MASTER XTL1 XTL0 CAD1 CAD0
11 12 11 10 9 8 7
10
1 2 3 4 5 6
74HC14 U8F 13 12 74HC14 J12 BNC MASTER XTL1 XTL0 CAD1 CAD0
PORT3 6 6 GND VCC 5 5 GND OUT TORX176
4 3 2 1
L3 10u VD C66 0.1u C67 + 10u R73
OPT
470
MODE1 RP1
JP3 RX0
BNC
RX0
C68 R74 75 0.1u
6 5 4 3 2 1
47k
A A
Title Size Document Number
AKD4588
INPUT
Sheet
1
Rev
A3
Date:
5 4 3 2
B
3
of
Saturday, December 20, 2003
4
5
4
3
2
1
T2 NJM78M05FA VD 10u
D
+12V R75 P12V C69 + 0.1u C70 47u Short
D
3 +C72 47u C71 0.1u
GND
L4
OUT
IN
1
+ C73 47u
DVDD
R76 7.5 R77
PVDD 5.1 AVDD
2
-12V R78 N12V C75 47u T3 LP2950A GND C74 0.1u Short +
C
TVDD + C76 47u C77 0.1u
1
OUT
IN
3 C78 + 0.1u
DVDD C79 47u 1 2 3 4 5 PORT4 10 9 8 7 6 BCUV R80 10k_C BOUT COUT UOUT VOUT VIN R79
C
2
100_C
BOUT COUT UOUT VOUT VIN
B
MCLK BICK2 LRCK2
MCKO BICK LRCK SDTO SDTI4
1 2 3 4 5
PORT5 10GND 9 GND 8 SDTI1 7 SDTI2 6 SDTI3
DSP DSP DSP DSP
B
ADC/DAC
SDTI1 SDTI2 SDTI3 SDTI4
R81 0_C SDTO
R82 0_C
R83 0_C
R84 0_C
A
A
Title Size Document Number
AKD4588
Power Supply
Sheet
1
Rev
A3
Date:
5 4 3 2
A
4
of
Saturday, December 20, 2003
4

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