AK4571VQ

[AKD4571-B]
AKD4571-B
Evaluation board Rev.0 for AK4571
GENERAL DESCRIPTION
AKD4571 is an evaluation board for CODEC with USB I/F part, AK4571. As the AK4571 is highly
integrated, only a few external components, which are a regulator, Xtal, resistors and capacitors, are
required for building USB I/F headset. The AK4571 has also EEPROM I/F for customizing Device
Descriptor and String Descriptor. So the AK4571 can customize Vendor ID, Product ID in Device
Descriptor and String Descriptor
AK4571 is a bus-powered device and can operate with only standard USB audio, HID drivers. So
you don’t need external power supply and any special software.
„ Ordering guide
AKD4571-B --- Evaluation board for AK4571
FUNCTION
„ Monaural Microphone Jack and Stereo Line-out Jack
„ 3.3 volt Regulator (LT1521)
„ 4 pushbuttons for HID (REC-MUTE, VOL-UP, VOL-DOWN, LINE-MUTE)
„ 1k bit EEPROM (M93C46)
„ Headphone Amplifier (AK4201)
„ USB B-type Connector
PORT2
EEPROM I/F
HID button
S4:MIC_MUTE
M93C46
EEP-ROM
S3:VOL_UP
S2:VOL_DOWN
J1
S1:LINE_MUTE
Stereo Line-out
AK4201
USB Connector
AK4571
Monaural Microphone IN
D+
D-
PORT1
J2
5V
Regulator
3.3V
12.000MHz
LT1521
Figure 1. AKD4571-B Block Diagram
* Circuit diagram and PCB layout are attached at the end of this manual
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BOARD
D OUTLINE CHART
Chart
„ Outline C
PORT2
S4
S3
J1
AK42
201
S2
D1 D2
S1
A
AK4571
J2
PO
ORT1
Figure 2. AKD4571-B
B top view
nt
„ Commen
(1) PORT1 (USB Connecctor)
Thhis is a USB B-type
B
connecctor for evaluaation of the AK
K4571. Conneect this to PC.
(2) PORT2 (10pin Headeer)
Thhis is a 10pin pin
p header forr EEP-ROM w
write operation
n.
(3) J1 (Minii Jack)
Thhis is a 3.5mm
m mini jack forr stereo line ooutput.
(4) J2 (Minii Jack)
Thhis is a 3.5mm
m mini jack forr monaural miicrophone inp
put.
(5) S1, S2, S
S3, S4 (Push Switch)
S
Thhese are push switches for Human
H
Interfaace Devices (H
HID).
(6) D1 (LED
D)
Thhis is a red lighting LED forr monitor signnal of SUSPEN
ND mode.
(7) D2 (LED
D)
Thhis is a green lighting
l
LED for monitor siignal of REC--MUTE modee.
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[AKD4571-B]
Evaluation Board Manual
„ Operation sequence
1) Set up the jumper pins as the followings.
JP1 (EPEN): Open
JP1
EPEN
2) Connect PORT1 of the AKD4571-B to PC with an USB cable. Windows recognizes the AK4571 automatically, and it
is not necessary to install any driver. Device manager shows “AK4571” in “Sound, video and game controllers”, if
Windows recognizes the device successfully.
Figure 3. Device Manager “Sound, video and game controllers”
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„ Operation (Recording)
1) Open the Start Menu, click “Control Panel” and then click “Sound”.
2) To adjust microphone volume, click “Recording” tab in “Sound” dialogue box. Click “Microphone” (it is required to
select microphone already connected to PC (microphone with green checkmark)), and click “Properties”.
Figure 4. Sound (Recording)
3) In “Microphone Properties” dialogue box, click “Levels” tab, drag the slider under “Microphone” to adjust sound
volume and then click “OK”.
Figure 5. Volume Control
4) Open the “Start Menu”, click on “All Programs”, “Accessories” folder, and double click “Sound Recorder”.
Click “Start Recording”.
Figure 6. Sound Recorder
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„ Operation (Playback)
1) Open the Start Menu, click “Control Panel” and then click “Sound”.
2) Right-click “Speakers” and select “Properties” under the tab of “Playback”.
Figure 7. Sound (Playback)
3) In “Speakers Properties” dialogue box, click “Levels” tab, drag the slider under “Speakers” to adjust output sound
volume. In “Levels” tab, click “Balance”. Drag the slider of “Left” or “Right” to adjust volume of the left sound
channel or the right channel. If the microphone sound is mixed to speakers, click the mute icon under “Microphone”
to cancel “Mute”, drag the slider under “Microphone” to adjust microphone sound volume and then click “OK” to
exit.
Figure 8. Volume and Balance Control
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„ Operation (HID Function)
1) In “Speakers Properties” dialogue box, click “Levels” tab.
S1 (LINE-MUTE):
When S1 button on the evaluation board is pressed, the speaker icon under “Speakers” changes to “Mute”. When
S1 button is pressed again, it changes to cancel “Mute”.
S2 (VOL-DOWN):
When S2 button on the evaluation board is pressed, the slider under “Speakers” moves to left.
S3 (VOL-UP):
When S3 button on the evaluation board is pressed, the slider under “Speakers” moves to right.
Figure 9. Volume Control
S4 (REC-MUTE):
Windows HID driver doesn’t support recording mute function. Therefore, when S4 button on the evaluation board
is pressed, AK4571 sets the analog input signal on mute and D2 (RECMUTE) LED turns on, but the mute icon
under “Microphone” doesn’t change.
„ Jumper pins set up
[JP1] (EPEN): EEPROM enable.
OPEN: EEPROM disable (Read Device/String Descriptor from internal ROM.) <Default>
SHORT: EEPROM enable (Read Device/String Descriptor from external EEPROM (U4).)
[JP2] (ROUT-SEL): R-ch output to J1.
LINE: Line output is selected. <Default>
HP: Headphone output is selected.
[JP3] (LOUT-SEL): L-ch output to J1.
LINE: Line output is selected. <Default>
HP: Headphone output is selected.
[JP4] (IAMP): Headphone amplifier (U5) power.
OPEN: Power down. <Default>
SHORT: Power up.
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„ Indication for LED
[D1] (SUSPEND):
Monitor SUSN pin of the AK4571. LED turns off when the AK4571 is on suspend state.
[D2] (RECMUTE):
Monitor recording status of the AK4571. LED turns on when S4 (REC-MUTE) button is pressed and the
AK4571 sets the analog input signal on mute.
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Software Manual
If the external EEPROM is used, go through the following steps. If the external EEPROM is not used, AK4571 reads
Device/String Descriptor from internal ROM and “Device Manager” indicates this Descriptor. As necessary, perform the
following operation.
1) Set up the jumper pins as the followings.
JP1 (EPEN): Open
JP1
EPEN
2) Connect the USB control box to a PC with a USB cable and to 10pin header (PORT2) of the evaluation board with the
10pin flat cable installed in the USB control box. The red line of the 10pin flat cable should be connected with the
1pin of the 10pin Header of the evaluation board.
3) Connect the evaluation board and PC with a USB cable.
10pin Flat Cable
JP1
Open
AKDUSBIF-B
PC
Evaluation Board
AKD4571-B
Device
AK4571
USB Cable
PORT1
USB Connector
USB
Connector
Set Red line to No.1 pin side.
PORT2
10pin Header
USB Cable
Figure 10. Connection via the AKDUSBIF-B
4) Double-click the icon “eeprom.exe” to open the write EEPROM application.
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5) Overwrite the Descriptor in the text box, and then push “OK” button.
Figure 11. AK4571 Write EEPROM Application
6) Disconnect the USB control box from the evaluation board and the USB cable from PC.
7) Set up the jumper pins as the followings.
JP1 (EPEN): Short
JP1
EPEN
8) Connect the evaluation board and PC with a USB cable.
9) Windows automatically starts to install the device driver software.
Figure 12. Device Manager “Sound, video and game controllers”
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Revision History
Date
(yy/mm/dd)
2015/07/24
Manual
Board
Revision Revision
KM121800
0
Reason
Page
Contents
First edition
IMPORTANT NOTICE
0. Asahi Kasei Microdevices Corporation (“AKM”) reserves the right to make changes to the information
contained in this document without notice. When you consider any use or application of AKM product
stipulated in this document (“Product”), please make inquiries the sales office of AKM or authorized
distributors as to current status of the Products.
1. All information included in this document are provided only to illustrate the operation and application
examples of AKM Products. AKM neither makes warranties or representations with respect to the accuracy
or completeness of the information contained in this document nor grants any license to any intellectual
property rights or any other rights of AKM or any third party with respect to the information in this
document. You are fully responsible for use of such information contained in this document in your product
design or applications. AKM ASSUMES NO LIABILITY FOR ANY LOSSES INCURRED BY YOU OR
THIRD PARTIES ARISING FROM THE USE OF SUCH INFORMATION IN YOUR PRODUCT
DESIGN OR APPLICATIONS.
2. The Product is neither intended nor warranted for use in equipment or systems that require extraordinarily
high levels of quality and/or reliability and/or a malfunction or failure of which may cause loss of human
life, bodily injury, serious property damage or serious public impact, including but not limited to, equipment
used in nuclear facilities, equipment used in the aerospace industry, medical equipment, equipment used for
automobiles, trains, ships and other transportation, traffic signaling equipment, equipment used to control
combustions or explosions, safety devices, elevators and escalators, devices related to electric power, and
equipment used in finance-related fields. Do not use Product for the above use unless specifically agreed by
AKM in writing.
3. Though AKM works continually to improve the Product’s quality and reliability, you are responsible for
complying with safety standards and for providing adequate designs and safeguards for your hardware,
software and systems which minimize risk and avoid situations in which a malfunction or failure of the
Product could cause loss of human life, bodily injury or damage to property, including data loss or
corruption.
4. Do not use or otherwise make available the Product or related technology or any information contained in
this document for any military purposes, including without limitation, for the design, development, use,
stockpiling or manufacturing of nuclear, chemical, or biological weapons or missile technology products
(mass destruction weapons). When exporting the Products or related technology or any information
contained in this document, you should comply with the applicable export control laws and regulations and
follow the procedures required by such laws and regulations. The Products and related technology may not
be used for or incorporated into any products or systems whose manufacture, use, or sale is prohibited under
any applicable domestic or foreign laws or regulations.
5. Please contact AKM sales representative for details as to environmental matters such as the RoHS
compatibility of the Product. Please use the Product in compliance with all applicable laws and regulations
that regulate the inclusion or use of controlled substances, including without limitation, the EU RoHS
Directive. AKM assumes no liability for damages or losses occurring as a result of noncompliance with
applicable laws and regulations.
6. Resale of the Product with provisions different from the statement and/or technical features set forth in this
document shall immediately void any warranty granted by AKM for the Product and shall not create or
extend in any manner whatsoever, any liability of AKM.
7. This document may not be reproduced or duplicated, in any form, in whole or in part, without prior written
consent of AKM.
[KM121800]
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1
2
3
S1
S2
2
1
S3
2
LINE-MUTE
4
1
S4
2
VOL-DOWN
5
1
2
VOL-UP
1
SUSN
MSTAT
MIC-MUTE
A
A
C1
0.1u
R1
47k
C2
0.1u
R2
47k
C3
0.1u
R3
47k
C4
0.1u
R4
47k
C5
0.1u
D1 LED(Red)
R5 330
2
1
SUSPEND
VBUS3
U2
LT1521CST-3.3
IN
OUT
1
GND
3
R6 330
D2 LED(Green)
1
C7
4.7u
VDD NC2
Y1
Y6
A1
A6
Y2
NC1
A2
Y5
Y3
A5
A3
Y4
DGND A4
16
15
14
13
12
11
10
9
74HC4050
MIC_MUTE
C8
0.1u
+
2
C6
1u
2
R7 10
U1
1
2
3
4
5
6
7
8
PORT1
B
DVBUS
R9
C9
47k
3300p
SUSN
MSTAT
R10 3.9
3
2
B
R11 3.9
1
PORT2
2.7k
9
C16
6800p
R17
120k
10
C21
6800p
R18
120k
11
12
C24
4.7u
2
1
38
37
TEST2
TEST1
40
39
IMUTE
MSTAT
42
43
41
INC
DEC
SUSN
OMUTE
45
44
46
TESTMODE3
EMSW
TESTMODE2
LFLT_SYS
VRDA
LFLT_44K
VRAD
LFLT_48K
AGND
VCOM
C25
0.1u
+
DP
STBY
VA
35
EEPROM I/F
R12
U4
1
2
3
4
100K
34
CS
VCC
SK NC/PE
DI
NC
DO
GND
33
8
7
6
5
C12
0.1u
M93C46-WMN6
32
31
R13 100K
R16
SK
CS
36
30
29
28
27
26
25
C18
0.1u
+ C19
4.7u
C22
0.1u
C23
4.7u
C17
0.1u
+ C20
4.7u
C
JP2
ROUT-SEL
EPSW
ROUT
0.022u
EPSW
RBFO
C
C15
U3
AK4571VQ
XTALIN
RBFI
8
EPAO
LOUT
EPSW
EPDI
XTALOUT
LBFO
7
BGND
LBFI
2
6
EPEN
TESTMODE1
C14 10p
DGND
AMP2O
5
X1
12MHz
EPSEL
AMP2I
1
4
VD
AMP1O
C13 10p
RSTN
48
3
DN
TEST3
2
MICIN
1
C11
0.1u
+
MICBIAS
C10
4.7u
AGND
CS
SK
EPAO
EPDI
JP1
EPEN
+
DGND
47
USB Standard B
R15 100K
D+
R8
1.5K
4
R14 100K
GND
LINE
22k
C35 1u
7
CP
8
PDN
VSS2
3
CN
PVDD
5
6
JP3
LOUT-SEL
C36
0.1u
VBUS3
D
HP
22k
2
LINE
1
JP4
IAMP
C39
4.7u
+
Title
AKD4571-B
Size
A3
Date:
1
2
3
J1
HeadPhone
2
1
C31
1u
VSS1
4
C38
0.1u
R28
R27
47k
9
PVEE
AK4201EU
1
R26
C37 1u
10
12
U5
2
3
2
1
D
11
24
23
C30 4700p
ROUT
C34 4700p
+
22
21
19
20
360K
R22
47k
AVDD
C33
10u
360k
22k
C26 1u
3
C32
0.1u
R21
LIN
R25
4.7k
J2
Microphone
R24
LOUT
R23 330
C29
1000p
HP
C27 1u
22k
RIN
C28
1u
18
17
16
15
14
13
R19
R20
4
Document Number
Rev
0
Main Board
Monday, July 27, 2015
Sheet
5
1
of
1
Silk1
- 12 -
Silk2
- 13 -
Lay1
- 14 -
Lay2
- 15 -
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