AK4554VT

ASAHI KASEI
[AKD4554]
AKD4554-E
Evaluation board Rev.0 for AK4554
GENERAL DESCRIPTION
AKD4554-E is an evaluation board for the portable digital audio 16bit A/D and D/A converter, AK4554.
The AKD4554-E can evaluate A/D converter and D/A converter separately in addition to loopback mode
(A/D → D/A). The A/D section can be evaluated by interfacing with AKM’s DAC evaluation boards directly.
The AKD4554 has the interface with AKM’s ADC evaluation boards. Therefore, it’s easy to evaluate the
D/A section. The AKD4554-E also has the digital audio interface and can achieve the interface with digital
audio systems via opt-connector.
„ Ordering guide
AKD4554 -E
---
Evaluation board for AK4554
FUNCTION
• Compatible with 2 types of interface
- Direct interface with AKM’s A/D & D/A converter evaluation boards
- DIT/DIR with optical input/output
REG
VDD
AGND
DGND
Opt In
Regulator
AK4114
DIT/DIR
AINL/
AINR
Opt Out
AK4554
AOUTL/
AOUTR
10pin Header
DSP
Figure 1. AKD4554-E Block Diagram
* Circuit diagram and PCB layout are attached at the end of this manual.
<KM077900>
2005/03
-1-
ASAHI KASEI
[AKD4554]
Evaluation Board Manual
„ Operation sequence
1) Set up the power supply lines.
[VDD] (Orange)
= 1.6 ∼ 3.6V
[REG] (Red)
= 5.0V
[AGND] (Black)
= 0V
[DGND] (Black)
= 0V
: for VDD of AK4554
: for regulator
: for analog ground (including VSS of AK4554)
: for logic ground
Each supply line should be distributed from the power supply unit.
2) Set up the evaluation mode, jumper pins and DIP switches. (See the followings.)
3) Power on.
The AK4554 should be reset once bringing SW2 (PDN) “OFF” upon power-up.
<KM077900>
2005/03
-2-
ASAHI KASEI
[AKD4554]
„ Evaluation mode
Applicable Evaluation Mode
1) Evaluation of loopback mode (default)
2) Evaluation of D/A using A/D converted data
3) Evaluation of D/A using DIR (Optical Link)
4) Evaluation of A/D using D/A converted data
5) Evaluation of A/D using DIT (Optical Link)
6) All interface signals including master clock are fed externally.
5)
AKD43XX
4)
D/A Board
PORT2
DIT
PORT3
AKD4554-E
10pin-Header
1)
CD
PORT1
DIR
Player
3)
AKD53XX
A/D Board
2)
1) Evaluation of loopback mode. (default)
Nothing should be connected to PORT1/PORT3.
JP4
MCLK
JP5
SCLK
JP6
LRCK
JP7
SDTI
DIR
<KM077900>
ADC
2005/03
-3-
ASAHI KASEI
[AKD4554]
2) Evaluation of D/A using A/D converted data.
D/A part can be evaluated by connecting with AKM’s A/D evaluation boards via PORT3.
Nothing should be connected to PORT1
JP4
MCLK
JP5
SCLK
JP6
LRCK
JP7
SDTI
DIR
ADC
3) Evaluation of D/A using DIR. (Optical link)
PORT1 (TORX141) is used. DIR generates MCLK, SCLK, LRCK and SDATA from the received data
through optical connector (TORX141). Used for the evaluation using CD test disk. Nothing should be
connected to PORT2/PORT3.
JP4
MCLK
JP5
SCLK
JP6
LRCK
JP7
SDTI
DIR
ADC
4) Evaluation of A/D using D/A converted data.
A/D part can be evaluated by connecting with AKM’s D/A evaluation boards via PORT3.
Nothing should be connected to PORT1.
JP4
MCLK
JP5
SCLK
JP6
LRCK
JP7
SDTI
DIR
<KM077900>
ADC
2005/03
-4-
ASAHI KASEI
[AKD4554]
5) Evaluation of A/D using DIT. (Optical link)
PORT2 (TOTX141) is used. DIT generates audio bi-phase signal from received data and which is output
through optical connector (TOTX141). It is possible to connect AKM’s D/A converter evaluation boards
on the digital-amplifier, which equips DIR input.
JP4
MCLK
JP5
SCLK
JP6
LRCK
JP7
SDTI
DIR
ADC
6) All interfacing signals (MCLK, SCLK, LRCK) are fed from the external circuit through PORT3.
Under the following set-up, all external signals needed for the AK4554 to operate could be fed through
PORT3.
JP4
MCLK
JP5
SCLK
JP6
LRCK
JP7
SDTI
DIR
<KM077900>
ADC
2005/03
-5-
ASAHI KASEI
[AKD4554]
„ DIP switch set up
Upper-side is “ON” (“H”) and lower side is “OFF” (“L”).
[SW1]: Set up the AK4554 and AK4114.
.
SW No.
SW Name
1
DIF2, 0
2
3
DEM1
DEM0
4
NC
Mode
AK4554 and AK4114 Audio Format Setting
Always OFF.
Set up the de-emphasis of AK4554
(See table 2)
No use
Table 1. DIPswitch set-up of AK4114
DEM1
DEM0
Mode
(SW1-#2)
(SW1-#3)
OFF
OFF
44.1kHz
OFF
ON
OFF
ON
OFF
48kHz
ON
ON
32kHz
Table 2. DIPswitch set up of de-emphasis
<KM077900>
2005/03
-6-
ASAHI KASEI
[AKD4554]
„ Other jumper pins set up
[JP1] (GND): Connection between AGND and DGND
open: Both grounds are separated on board.<default>
short: Both grounds are connected on board.
[JP2] (REG): Select to regulator
open: On-board regulator is not used. <default>
short: On-board regulator is used.(The connector “VDD” can be open.)
[JP3] (PWR): Pull up power supply select for SDTO.
VDD: Connected to VDD of AK4554. <default>
D3V: Supplied from regulator (3V).
„ The function of the toggle SW.
Upper-side is “ON” and lower side is “OFF”.
[SW2] (PDN):
Resets the AK4554 and AK4114. Keep “ON” during normal operation.
„ Indication for LED
[LED1] (ERF): Monitor INT0 pin of the AK4114. LED turns on when some error has occurred to AK4114.
<KM077900>
2005/03
-7-
ASAHI KASEI
[AKD4554]
„ Input Circuit
J1
C28
4.7u
6
AINR
+
4
3
R20
560
AINL/AINR
C29
4.7u
+
AINL
R21
560
Figure 2. Input circuit on board
„ Output Circuit
+
R24
220
AOUTR
J2
4
3
R23
10k
R25
220
+
C30
22u
6
AOUTL/AOUTR
AOUTL
C31
22u
R22
10k
Figure 3. Output circuit on board
* AKM assumes no responsibility for the trouble when using the circuit examples.
<KM077900>
2005/03
-8-
ASAHI KASEI
[AKD4554]
MEASUREMENT RESULTS
[Measurement condition]
• Measurement unit
• MCLK
• SCLK
• fs
• Bit
• Power Supply
• Interface
• Temperature
: Audio Precision, System two
: 256fs
: 64fs
: 44.1kHz
: 16bit
: VDD = VP = 2.5V, VD = 5V
: DIT/DIR
: Room
1. ADC
VDD
2.5V
Parameter
S/(N+D) (-0.5dBFS)
D-Range (-60dBFS)
S/N (0 data)
Measured Filter
20kHz LPF
20kLPF + A-weighted
20kLPF + A-weighted
AINL
80.9 dB
89.4 dB
89.3 dB
AINR
81.0 dB
89.2 dB
89.2 dB
Parameter
S/(N+D) (0dBFS)
D-Range (-60dBFS)
S/N (0 data)
Measured Filter
20kHz LPF
22kLPF + A-weighted
22kLPF + A-weighted
AOUTL
84.5 dB
91.6 dB
91.9 dB
AOUTR
84.5 dB
91.7 dB
92.1 dB
2. DAC
VDD
2.5V
<KM077900>
2005/03
-9-
ASAHI KASEI
[AKD4554]
3.PLOT DATA
3-1 ADC
AKM
AK4554 ADC THD+N vs.Input Level
VDD=2.5V, fs=44.1kHz, fin=1kHz
-60
-62
-64
-66
-68
-70
-72
d
B
F
S
-74
-76
-78
-80
-82
-84
-86
-88
-90
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
dBr
Fig. 1 THD+N vs. Input Level
AKM
AK4554 ADC THD+N vs. Input Frequency
VDD=2.5V, fs=44.1kHz, Input Level=-0.5dB
-60
-62
-64
-66
-68
-70
-72
d
B
F
S
-74
-76
-78
-80
-82
-84
-86
-88
-90
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Fig.2 THD+N vs. Input Frequency
<KM077900>
2005/03
- 10 -
ASAHI KASEI
[AKD4554]
AKM
AK4554 ADC Linearity
VDD=2.5V, fs=44.1kHz, fin=1kHz
+0
-10
-20
-30
-40
d
B
F
S
-50
-60
-70
-80
-90
-100
-110
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
Fig.3 Linearity
AKM
AK4554 ADC Frequency Response
VDD=2.5V, fs=44.1kHz, Input level=-0.5dB
+0
-0.2
-0.4
-0.6
-0.8
-1
-1.2
d
B
F
S
-1.4
-1.6
-1.8
-2
-2.2
-2.4
-2.6
-2.8
-3
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Fig.4 Frequency Response
<KM077900>
2005/03
- 11 -
ASAHI KASEI
[AKD4554]
AKM
AK4554 ADC FFT Plot
VDD=2.5V, fs=44.1kHz, fin=1kHz, Input Level=-0.5dB
+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
1k
2k
5k
10k
20k
5k
10k
20k
Hz
Fig.5 FFT Plot (Input Level = -0.5dB)
AKM
AK4554 ADC FFT Plot
VDD=2.5V, fs=44.1kHz, fin=1kHz, Input Level=-60dB
+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
1k
2k
Hz
Fig.6 FFT Plot (Input Level = -60dB)
<KM077900>
2005/03
- 12 -
ASAHI KASEI
[AKD4554]
AKM
AK4554 ADC FFT
VDD=2.5V, fs=44.1kHz, Input Level=-0.5dB
+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
1k
2k
5k
10k
20k
Hz
Fig.7 FFT Plot (no signal)
Fig.8 Crosstalk (red : L--->R, blue : R--->L)
<KM077900>
2005/03
- 13 -
ASAHI KASEI
[AKD4554]
3-2. DAC
AKM
AK4554 DAC THD+N vs. Input Level
VDD=2.5V, fs=44.1kHz, fin=1kHz
-60
-62
-64
-66
-68
-70
-72
-74
-76
d
B
r
A
-78
-80
-82
-84
-86
-88
-90
-92
-94
-96
-98
-100
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
Fig.9 THD+N vs. Input Level
AKM
AK4554 DAC THD+N vs. Input Frequency
VDD=2.5V, fs=44.1kHz, Input Level=0dB
-60
-62
-64
-66
-68
-70
-72
-74
-76
d
B
r
A
-78
-80
-82
-84
-86
-88
-90
-92
-94
-96
-98
-100
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Fig.10 THD+N vs. Input Frequency
<KM077900>
2005/03
- 14 -
ASAHI KASEI
[AKD4554]
AKM
AK4554 DAC Linearity
VDD=2.5V, fs=44.1kHz, fin=1kHz
+0
-10
-20
-30
-40
d
B
r
A
-50
-60
-70
-80
-90
-100
-110
-120
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBFS
Fig.11 Linearity
AKM
AK4554 DAC Frequency Response
VDD=2.5V, fs=44.1kHz, Input Level=0dB
+1
+0.9
+0.8
+0.7
+0.6
+0.5
+0.4
+0.3
+0.2
d
B
r
A
+0.1
+0
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
-0.9
-1
2k
4k
6k
8k
10k
12k
14k
16k
18k
20k
Hz
Fig.12 Frequency Response
<KM077900>
2005/03
- 15 -
ASAHI KASEI
[AKD4554]
AKM
AK4554 DAC FFT Plot
VDD=2.5V, fs=44.1kHz,fin=1kHz, Input Level=0dB
+0
-10
-20
-30
-40
-50
-60
d
B
r
-70
A
-90
-80
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
5k
10k
20k
5k
10k
20k
Hz
Fig.13 FFT Plot (Input Level = 0dB)
AKM
AK4554 DAC FFT Plot
VDD=2.5V, fs=44.1kHz,fin=1kHz, Input Level=-60dB
+0
-10
-20
-30
-40
-50
-60
d
B
r
-70
A
-90
-80
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
Hz
Fig.14 FFT Plot (Input Level = -60dB)
<KM077900>
2005/03
- 16 -
ASAHI KASEI
[AKD4554]
AKM
AK4554 DAC FFT
VDD=2.5V, fs=44.1kHz, Input Level=0dB
+0
-10
-20
-30
-40
-50
-60
d
B
r
-70
A
-90
-80
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Fig.15 FFT Plot (no data)
Fig.16 Crosstalk (red : L--->R, blue : R--->L)
<KM077900>
2005/03
- 17 -
ASAHI KASEI
[AKD4554]
AKM
AK4554 DAC out-band-noise
VDD=2.5V, fs=44.1kHz, Input=no data
+0
-10
-20
-30
-40
-50
-60
d
B
r
-70
A
-90
-80
-100
-110
-120
-130
-140
-150
-160
20
50
100
200
500
1k
2k
5k
10k
20k
50k
100k
Hz
Fig.17 Out band noise
<KM077900>
2005/03
- 18 -
ASAHI KASEI
[AKD4554]
Revision History
Date
(YY/MM/DD)
05/03/31
Manual
Revision
KM077900
Board
Revision
0
Reason
Contents
First Edtion
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.
<KM077900>
2005/03
- 19 -
B
C
C1
4.7u
J1
D
REG
VDD
AGND
T45_R
T45_O
T45_BK T45_BK
E
DGND
R2
220
+
A
J2
6
6
C2
22u
(5V)
C4
4.7u
1
VA
1
REG
R1
10k
(1.6-3.6V)
4
3
AOUTL/AOUTR
R4
220
+
AINL/AINR
E
1
R3
560
1
+
4
3
C3
22u
E
R5
10k
+
REG
R6
560
DGND
JP1
GND
AGND
VD
1
OUT
C6
0.1u
2
IN
C5
0.1u
GND
T1
TA4803F
C7
+
47u
C8
0.1u
U1
D
D
1
VCOM
AOUTR
16
2
AINR
AOUTL
15
3
AINL
PWDAN
14
4
VSS
PWADN
13
5
VDD
SCLK
12
VA
JP2
REG
L1
47u
1
+
2
(short)
R7
5.1
2
C10
LVC
VDD
C11
10u
+
1
C9
0.1u
6
C
DEM0
MCLK
PWDAN
R8
51
R9
51
BCLK
11
MCLK
C
R10 51
7
DEM1
LRCK
10
R11 51
LRCK
R12 51
8
SDTO
SDTI
9
SDTI
AK4554
DEM0
DEM1
B
B
4554_SDTO
A
A
Title
Size
A3
Date:
A
B
C
D
AKD4554-E
Document Number
Rev
AK4554
Monday, February 28, 2005
Sheet
E
0
1
of
4
A
B
C
D
E
1
VD
L2
47u
PORT1
DIP SW
DEM0
AK4555
ON
OFF
OFF
44.1k
AK4550/4
OFF
OFF
ON
OFF
ON
OFF
48k
ON
ON
32k
VCC
3
E
GND
OUT
2
1
TORX141
C14
10u
+ C13
10u
C12
0.1u
R13
470
+
DEM1
DIF2, 0
VD
2
E
C15
0.1u
C16
0.47u
R14
18k
VD
DEM0
1
37
38
IPS0
VD
VD
INT1
R
AVDD
39
40
41
AVSS
42
RX0
43
NC
45
44
RX1
VCOM
D
U3A
INT0
1
36
14
2
7
R15
1k
LED1
ERF
2
1
74HC14
DEM1
2
NC
OCKS0
35
3
DIF0
OCKS1
34
4
TEST2
CM1
33
5
DIF1
CM0
32
6
NC
PDN
31
XTI
30
AK4114
C
4114_PDN
C17
5p
7
DIF2
8
IPS1
XTO
29
9
P/SN
DAUX
28
10
XTL0
MCKO2
27
11
XTL1
BICK
26
DIR_BICK
12
VIN
SDTO
25
DIR_SDTO
C18
5p
2
X1
11.2896MHz
VD
C
TP1 EXTCLK
1
1
47k
TEST1
MODE2
RX2
U2
47
6
5
4
46
SW1
1
2
3
NC
D
DIF2,0
DEM 1
DEM 0
48
4
3
2
1
RX3
RP1
SDTO
IN
VCC
GND
1
TOTX141
LRCK
24
MCKO1
23
22
DVSS
DVDD
21
DIR_LRCK
+
20
VOUT
UOUT
19
COUT
18
BOUT
17
TX1
16
15
DVSS
14
13
A
C20
0.1u
DIR_MCKO
C21
10u
C22
10u
VD
PORT2
3
2
C19
0.1u
+
VD
TX0
B
TVDD
B
R16
5.1
VD
A
C23
0.1u
Title
Size
A3
Date:
A
B
C
D
AKD4554-E
Document Number
Rev
DIR/DIT
Monday, February 07, 2005
Sheet
E
0
2
of
4
A
B
C
D
E
E
E
VDD
JP3 PWR
VDD
VD
D3V
R17
1k
U4
7
2
14
SDTO
U5A
1
4554_SDTO
74LVC07ANS
11
Y8
A8
9
12
Y7
A7
8
MCLK
13
Y6
A6
7
BCLK
14
Y5
A5
6
LRCK
15
Y4
A4
5
SDTI
16
Y3
A3
4
17
Y2
A2
3
18
Y1
A1
2
10
GND
G2
19
20
VCC
G1
1
PWDAN
LVC
D
D
JP4MCLK
DIR_MCKO
JP5SCLK
DIR_BICK
JP6LRCK
DIR_LRCK
C
C
C24
0.1u
VD
2
LVC
R18
10k
U3B
1
D1
1S1588
3
B
74HC14
H
1
2
3
4
5
10
9
8
7
6
GND
GND
NC
NC
SDTO
DSP
74LVC541
R19
VD
VD
14
4
7
U3C
5
10k
14
6
7
4114_PDN
B
74HC14
ADC
1
3
L
PORT3
MCLK
BICK
LRCK
SDTI
VD
C25
0.1u
for
74HC14
for
74LVC07ANS
VD
SDTO
JP7
SDTI
2
SW2
PDN
LVC
C26
0.1u
DIR_SDTO
DIR
C27
0.1u
A
A
Title
Size
A3
Date:
A
B
C
D
AKD4554-E
Document Number
Rev
LOGIC
Monday, February 07, 2005
0
Sheet
E
3
of
4
A
B
C
D
E
E
E
D
D
VD
C
C
LVC
U5B 7
3
4
14
74LVC07ANS
U5C 7
5
U3D
9
14
8
7
6
14
74LVC07ANS
U5D 7
9
74HC14
8
14
74LVC07ANS
U5E 7
U3E
B
11
14
10
7
11
74HC14
13
74LVC07ANS
B
U5F 7
13
U3F
10
14
12
14
74LVC07ANS
14
12
7
74HC14
A
A
Title
Size
A3
Date:
A
B
C
D
AKD4554-E
Document Number
Rev
PIN
Monday, February 07, 2005
0
Sheet
E
4
of
4
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