AKM AKD4201-C User manual

[AKD4201-C]
<KM097401> 2009/02
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GENERAL DESCRIPTION
AKD4201-C is anevaluation board for the stereo headphone / lineoutamplifier AK4201 that has a built-in
charge-pump circuit and eliminates the need for large DC-blocking capacitors. It applies to single-end
analog input, headphone / lineout output, and it is available to evaluate the AK4201 easily.
Ordering guide
AKD4201-C ---AK4201 Evaluation Board
FUNCTION
•Stereo mini jack for Line In
•Stereo mini jack for Headphone
•RCA jack for Line Out
LIN AK4201
3.5 mini-
Jack LOUT
ROUT
5V
3.3V
RIN 3.5 mini-
Jack
AVDD PVDD
GND
VSS1 VSS2
J2 J3
TM1 TM2
Figure 1. AKD4201-C Block Diagram
* Circuit diagram and pattern layout are attached at the end of this manual.
A
K4201 Evaluation Board Rev.0
AKD4201-C

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Board Outline Chart
Outline Chart
Figure 2. AKD4201-C Outline Chart
Comment
(1) J2 (LIN / RIN): Mimi-Jack
It is a jack of analog input signals LIN / RIN. These signals are input to LIN pin / RIN pin.
(2) J3 (LOUT / ROUT): Mimi-Jack
It is a jack of analog output signals LOUT / ROUT. These signals are output from LOUT pin / ROUT pin.
(3) TM1 (5V / 3.3V): Terminal
It is a power supply terminal of 5V / 3.3V. It should be connected to power supply 5V/3.3V.
For further details, refer to P3. “Set up the power supply lines”.
(4) TM2 (GND): Terminal
It is a ground terminal. It should be connected to GND.
For further details, refer to P3. “Set up the power supply lines”.
(5) SW1 (PDN): Toggle Switch
It is a power down switch of AK4201. This should be set to H, after all power supply pins are supplied.
Lout
Rout
VSS

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Evaluation Board Manual
Operation sequence
1) Set up the power supply lines.
1-1) The power of AVDD and PVDD is supplied from power supply jacks. <Default>
Name
Of jack Color Of jack Typ. Voltage Using Note Default Setting
5V / 3.3V Red +5V / 3.3V AVDD of AK4201
PVDD of AK4201 +5V/+3.3V are supplied from jack Connect to +5V / +3.3V
GND Black 0V Ground Should be connected 0V
Table 1. Set up of power supply lines
(The power of AVDD and PVDD is supplied from power supply jacks.)
Note 1. Each supply line should be distributed from the power supply unit.
AVDD and PVDD must be connected to the same power supply.
3) The function of the toggle SW. (See the followings.)
4) Power on.
SW1 (AK4201-PDN) should be kept “L”, until all power supply pins are supplied.
SW1 (AK4201-PDN) should be set to “H”, after all power supply pins are supplied.
The function of the toggle SW
Upper is “H”, and lower is “L”.
[SW1] (AK4201-PDN): Power down reset of AK4201. Keep “H” during normal operation.
SW1 (AK4201-PDN) should be kept “L”, until all power supply pins are supplied.
SW1 (AK4201-PDN) should be set to “H”, after all power supply pins are supplied.

[AKD4201-C]
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MEASUREMENT RESULTS
[Measurement condition]
•Measurement unit : Audio Precession System Two Cascade
•Power Supply : AVDD = PVDD = 5.0V & 3.3V
•Measurement Filter : 10Hz ∼20kHz
•Headphone-Amp : Load=16Ωor 5kΩ
•Temperature : Room
1) AVDD=PVDD=5.0V
Parameter Result (Lch / Rch) Unit
THD+N:
16Ω, Output power=50mW
5kΩ, Output level=2Vrms
62.8 / 62.9
101.7 / 101.4 dB
S/N: (A-weighted)
16Ω, Output power=65mW
5kΩ, Output level=2Vrms
99.7 / 99.5
105.3 / 105.3 dB
Output Power 16Ω64.7 / 63.8 mW
2) AVDD=PVDD=3.3V
Parameter Result (Lch / Rch) Unit
THD+N:
16Ω, Output power=10mW
5kΩ, Output level=2Vrms
60.0 / 59.8
100.9 / 100.8 dB
S/N: (A-weighted)
16Ω, Output power=30mW
5kΩ, Output level=2Vrms
97.2 / 96.7
106.1 / 105.9 dB
Output Power 16Ω29.6 / 29.2 mW

[AKD4201-C]
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PLOT DATA THD+N vs. Output power (load =16Ω, AVDD=PVDD=5.0V fin = 1kHz)
Linearity (load = 5kΩ, AVDD=PVDD=5.0V fin = 1kHz)
100m
1.9
200m
300m
400m
500m
600m
700m
800m
.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
V
200m 1.2400m 600m 800m 1
Vrms
-70
-
40
-68
-66
-64
-62
-60
-58
-56
-54
-52
-50
-48
-46
-44
-42
d
B
10m 60m20m 30m 40m 50m
W

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THD+N vs. Input Frequency (load = 5kΩ, Output Level = 2Vrms, AVDD=PVDD=5.0V)
Crosstalk (load = 5kΩ, Output Level = 2Vrms, AVDD=PVDD=5.0V)
20 20k50 100 200 500 1k 2k 5k 10k
Hz
-180
-
60
-175
-170
-165
-160
-155
-150
-145
-140
-135
-130
-125
-120
-115
-110
-105
-100
-95
-90
-85
-80
-75
-70
-65
d
B
-140
+
0
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
20 20k50 100 200 500 1k 2k 5k 10k
Hz

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Crosstalk (load = 16Ω, Output Level = 2Vrms, AVDD=PVDD=5.0V)
FFT (load = 16Ω, Output power = 65mW, AVDD=PVDD=5.0V)
-150
+
10
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
d
B
V
20 20k50 100 200 500 1k 2k 5k 10k
Hz
-100
-
40
-95
-90
-85
-80
-75
-70
-65
-60
-55
-50
-45
d
B
20 20k50 100 200 500 1k 2k 5k 10k
Hz

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FFT (load = 5kΩ, Output level = 2Vrms, AVDD=PVDD=5.0V)
-150
+
10
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
d
B
V
20 20k50 100 200 500 1k 2k 5k 10k
Hz
FFT (load = 5kΩ, Input = no signal)
-150
+
10
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
d
B
V
20 20k50 100 200 500 1k 2k 5k 10k
Hz

[AKD4201-C]
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THD+N vs. Output power (load =16Ω, AVDD=PVDD=3.3V fin = 1kHz)
THD+N vs. Input Frequency (load = 5kΩ, Output Level = 2Vrms, AVDD=PVDD=5.0V)
-140
+
0
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
20 20k50 100 200 500 1k 2k 5k 10k
Hz
-70
-
40
-68
-66
-64
-62
-60
-58
-56
-54
-52
-50
-48
-46
-44
-42
d
B
5m 30m10m 15m 20m 25m
W

[AKD4201-C]
<KM097401> 2009/02
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Revision History
Date
(yy/mm/dd) Manual Revision Board Revision Reason Page Contents
08/11/12 KM097400 0 First Edition
09/02/02 KM097401 0 Addition 4 - 9 Measurement Results was added.
IMPORTANT NOTICE
zThese products and their specifications are subject to change without notice.
When you consider any use or application of these products, please make inquiries the sales office of Asahi Kasei
EMD Corporation (AKEMD) or authorized distributors as to current status of the products.
zAKEMD assumes no liability for infringement of any patent, intellectual property, or other rights in the application or
use of any information contained herein.
zAny export of these products, or devices or systems containing them, may require an export license or other official
approval under the lawand regulations ofthe country of export pertainingto customsand tariffs, currencyexchange, or
strategic materials.
zAKEMD products are neither intended nor authorized for use as critical componentsNote1) in any safety, life support, or
other hazard related device or systemNote2), and AKEMD assumes no responsibility for such use, except for the use
approved with the express written consent by Representative Director of AKEMD. As used here:
Note1) 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.
Note2) 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.
zIt is the responsibility of the buyer or distributor of AKEMD products, who distributes, disposes of, or otherwise places
the product with a third party, to notify such third 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 AKEMD harmless from any and all
claims arising from the use of said product in the absence of such notification.

1
1
2
2
3
3
4
4
5
5
A A
B B
C C
D D
E E
5V/3.3V
5V/3.3V
AK4201-RINAK4201-LIN
AK4201-AVDD
AK4201-PVDD AK4201-PDN
AK4201-LOUT AK4201-ROUT
AK4201-LIN
AK4201-ROUT
AK4201-LOUT
AK4201-RIN
VCC
AK4201-PDN
VCC
AK4201-AVDD
AK4201-PVDD
Title
Size Document Number Rev
Date: Sheet of
AK4201 0
AKD4201-C
A4
11
Tuesday, October 14, 2008
Title
Size Document Number Rev
Date: Sheet of
AK4201 0
AKD4201-C
A4
11
Tuesday, October 14, 2008
Title
Size Document Number Rev
Date: Sheet of
AK4201 0
AKD4201-C
A4
11
Tuesday, October 14, 2008
GND
GNDGND
12pin USON
Plastic
GNDGND
LIN / RIN LOUT / ROUT
AK4201-PDN
H
L
GND
GND
GNDGND
5V/3.3V GND
U1
AK4201
U1
AK4201
LIN
1
LOUT
2
AVDD
3
VSS1
4
PVDD
5
CN
6CP 7
PDN 8
VSS2 9
PVEE 10
ROUT 11
RIN 12
+
C4
10u
+
C4
10u
R4
30K
R4
30K
C100
0.1u
C100
0.1u
R100
(Short)
R100
(Short)
+
C2
10u +
C2
10u
R3
20K
R3
20K
C3
0.1u
C3
0.1u
R5
(Short)
R5
(Short)
R8
(Short)
R8
(Short)
C5
0.1u
C5
0.1u
TM1
(Open)
TM1
(Open)
1
C8
1u
C8
1u J3 M03-663A0
J3
M03-663A0
6
4
3
C7
1u
C7
1u
C6
1u
C6
1u
R2
30K
R2
30K
C1
1u
C1
1u
SW1
FT1D-2M-Z
SW1
FT1D-2M-Z
2
1
3
R1
20K
R1
20K
TM2
(Open)
TM2
(Open)
1
+
C12
(Open) +
C12
(Open)
J2
M03-663A0
J2
M03-663A0
6
4
3
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