IS31AP4833 Treble and Bass Control With 3D Enhancement Audio Power
Amplifier Evaluation Board Guide
Description
Recommended Equipment
The IS31AP4833 is a treble and bass control with 3D
enhancement audio power driver. The IS31AP4833
provides tone (bass and treble) controls and volume
control as well as a stereo audio power amplifier
capable of delivering 2.8W into 4Ω with less than 10%
THD with a 5V supply.
•
•
•
•
Features
Absolute Maximum Ratings
•
•
•
•
•
•
•
•
•
•
3.0V to 5.5V supply
Mute control
Treble and bass control
Independent volume control for two channels
Stereo input MUX
I2C control interface
3D enhancement
Thermal shutdown protection
Click-and-pop suppression
TQFP-48(7mm x 7mm) package
•
5.0V, 2A power supply
Audio source (i.e. MP3 player, Notebook PC, etc.)
A pair speakers (4 Ω or 8 Ω)
Headphone (32Ω)
≤ 5.5V power supply
Caution: Do not exceed the conditions listed above; other
wise the board will be damaged.
Procedure
The IS31AP4833 demo board is fully assembled and
tested. Follow the steps listed below to verify board
operation.
Caution: Do not turn on the power supply until all connections
are completed.
1)
Connect a pair 4Ω (or 8Ω) speakers across the
(OUTR+, OUTR-) terminals and (OUTL+, OUTL-)
terminals. Or connect speakers to the connector
(OUTR, OUTL) or connect headphone (32Ω) to
the connector (HEADPHONE).
2)
Connect the ground terminal of the power supply
to the GND and the positive terminal to the VCC.
Or connect DC power to connector (DC IN).
3)
If the audio sources are stereo, connect the audio
sources to one of the three inputs (SE AUDIO
INPUT1~ SE AUDIO INPUT3), or connect audio
source to the audio connector (3.5mm) .and press
one of the three buttons (K1~K3) to select one
input.
4)
If the audio sources are differential, connect to the
audio sources to (INL+, INL-) terminals (left
channel) and (INR+, INR-) terminals (right
channel).and press button K4 to select the
differential input.
5)
Turn on the power supply.
6)
Turn on the audio sources
Quick Start
Figure 1: Photo of IS31AP4833 Evaluation Board
Ordering Information
Part No.
Temperature Range
Package
IS31AP4833-TQLS2-EB -40°C to +85°C (Industrial) TQFP-48, Lead-free
Table 1: Ordering Information
For pricing, delivery, and ordering information, please contacts ISSI’s analog marketing team at
analog_mkt@issi.com or (408) 969-6600
Integrated Silicon Solution, Inc. – www.issi.com
RevA, 1/10/2013
1
IS31AP4833 Treble and Bass Control With 3D Enhancement Audio Power
Amplifier Evaluation Board Guide
the gain setting while KEY8, to reduce the
Performance Description
gain setting. The power-on default setting
IS31AP4833 demo board has 14 buttons to
is-12dB.
control various functions:
6 KEY9 KEY10 is for bass gain adjustment.
1 KEY14 button control chip enabled. When
The same display method which shown as
D6 point in the open, press the button to
above. Gain control range of-12dB ~ +12 dB.
switch to shut down at the same time D6 is off.
KEY9 for increase the gain setting while
The power-on defaults for the chip is turned
KEY10, to reduce the gain setting. The
on.
power-on default is +0 dB.
2 KEY13 button controls chip 3D enabled. D5
7
KEY11 KEY12 is for treble gain adjustment.
light is turned on, press the button to switch to
The same display method which shown as
shut down while D5 is off. The power-on
above. Gain control range of-12dB ~ +12 dB.
default closed for the 3D.
KEY11 for increase the gain setting while the
3 KEY1~KEY4 selected as the input source,
KEY12 to reduce the gain setting. The
corresponding to the SE AUDIO INPUT1 ~ 3
power-on default is +0 dB.
DIFF AUDIO INPUT, the button is pressed
8
Other detailed settings please refer to the
for a valid audio input, the corresponding
IS31AP4833 user guide instructions.
LED will be lit. Power-on default INPUT1.
）
）
、
）
）
、
）
）
4
5
） KEY5、KEY6 is audio input gain adjustment.
）
The top of the digital display gain and
negative gain, D7 lights. Gain control range of
-15dB ~ +6 dB. KEY5 to increase the gain
while KEY6 to reduce the gain. The power-on
default gain setting is +3 dB.
KEY7 KEY8 is to adjust the volume of the
left and right channels. The same Display
method which shown as above. Gain control
range of -42dB ~ +12 dB. KEY7 to increase
、
Integrated Silicon Solution, Inc. – www.issi.com
RevA, 1/10/2013
*Note:
IS31AP4833 solely controls the Audio function on the
evaluation board.
Software Support
Please refer to the integrated program.
*Note:
Please refer to the datasheet to get more information about
IS31AP4833
2
IS31AP4833 Treble and Bass Control With 3D Enhancement Audio Power
Amplifier Evaluation Board Guide
P0.7
DIG4
KEY4
C8
DIG3
C7
C6
DIG2
C5
C4
DIG1
C3
A2
KEY3
6
K13
a
b
c
d
e
f
g
DP
A1
K9
7
8
3
2
1
10
4
5
9
K5
Treble(dB)
R1
R2
R3
R4
R5
R6
R7
R8
A2
K4
KEY2
a
b
c
d
e
f
g
DP
6
K14
7
8
3
2
1
10
4
5
A1
K10
Bass(dB)
R1
R2
R3
R4
R5
R6
R7
R8
9
K6
a
b
c
d
e
f
g
DP
A2
K3
7
8
3
2
1
10
4
5
6
K11
Volume(dB)
R1
R2
R3
R4
R5
R6
R7
R8
A2
K7
a
b
c
d
e
f
g
DP
6
K2
7
8
3
2
1
10
4
5
A1
Gain(dB)
R1
R2
R3
R4
R5
R6
R7
R8
KEY1
9
P0.6
K12
A1
P0.5
K8
9
P0.4
K1
C2
C1
VCC
D1
TP1
CON1
DC IN
D4
D5
D6
D7
D8
D9
D10
U4
11
VDD
CON11
R14
1K
TP2
CON8
5
4
3
2
1
VCC
GND
SDB1
SCL1
SDA1
VCC
TP17
3V
P0.5
P0.4
RESET
GND
R15
R21
R16
R13
R12
R17
R18
R19
R20
1K
1K
1K
1K
1K
1K
1K
1K
1K
LED1 LED2 LED3 LED4 LED5 LED6 LED7 LED8 LED9 LED10
5
4
3
2
1
U3
CON9
GND
TP18
5
4
3
2
1
D3
VCC
C1
10uF
5
4
3
2
1
D2
VCC
GND
1
SCL
2
RST
3
SDA
4
ICP
KEY4
KEY3
KEY2
KEY1
P0.4
P0.5
P0.6
P0.7
3
26
25
24
23
22
20
19
LED2
LED1
LED9
SCL1
SDA1
RESET
SDB
LED3
18
17
12
11
10
6
5
4
P0.0/CMP2/KBI0/AD01
P2.0/ICB/DAC0/AD03
P0.1/CIN2B/KBI1/AD10
P2.1/OCD/AD02
P0.2/CIN2A/KBI2/AD11
P2.2/MOSI
P0.3/CIN1B/KBI3/AD12
P2.3/MISO
P0.4/CIN1A/KBI4/DAC1/AD13
P2.4/SS
P0.5/CMPREF/KBI5
P2.5/SPICLK
P0.6/CMP1/KBI6
P2.6/OCA
P0.7/T1/KBI7
P2.7/ICA
P1.0/TXD
P1.1/RXD
P1.2/T0/SCL
P1.3/INT0/SDA
P1.4/INT1
P1.5/RST
P1.6/OCB
P1.7/OCC/AD00
P3.0XTAL2/CLKOUT
P3.1/XTAL1
1
2
13
14
15
16
27
28
VSS
C26
10uF
C2
C4
C5
VCC
C6
R22
100K
SDA1
9 3D_EN
8 RST
R23
4.7K
R24
4.7K
C7
1
SCL1
2
SDB1
3
CON10
5
4
3
2
1
21
C23
1uF
7
SCL
R8/C9
SDB
R7/C10
R5
4
5
VCC
C28
0.1uF
IN
C_FILT
R4
R3
6
AD
R2
20
R1
2.7K
C8
R6/C11
C29
0.22uF
C5
2.2nF
SDA
GND
LPC936
C6
2.2nF
C1
C27
0.1uF
C3
SDA
SCL
LED8
LED7
LED6
LED5
LED4
LED10
3V
VDD
GND
SDB1
SCL1
SDA1
VCC
GND
R1
C9
68nF
24 C1
23 C2
22 C3
21 C4
19 C5
18 C6
17 C7
16 C8
15 R8
14 R7
13 R6
12 R5
10 R4
9 R3
8 R2
7 R1
3V
TP3
INL1
TP6
TP5
INL2
INR2
INL3
3DP
3DN
22
23
10
LIL
11
4
TIL
SDA
PGND
RST
3D_EN
SDB
1
36
48
37
46
39
TP11
INRINL+
INL-
41
45
44
RST
3D_EN
SDB
U2
1
3
3V
VDD
SD
VOUT
GND
BP
5
C20
1uF
C21
10nF
2
4
LDO
TP15 TP16
OUTL- OUTL+
INR2
OUTL+
INL3
OUTL-
CON7
5
9
R9
100R +
C25
22uF
R8
100R +
C24
22uF
R11
1K
VCC
INR3
HP
40
17
21
14
VCC
INL2
INR+
OUTR-
INR-
OUTR+
INL+
BYPASS
INLIS31AP4833
C8
2.2nF
LIR
TP12
INR+
SCL
C7
2.2nF
AGND
R3
20 100K
R2
100K
CON5
28
R10
1K
32
15
42,43
TP14 TP13
C4 OUTR- OUTR+
1uF
27
TP10
R5
4.7K
R4
100K
TOR
TP9
25
INR1
TP7
C16
0.22uF
C17
0.22uF
C19
0.22uF
C18
0.22uF
12
R6
4.7K
SDA
INL1
26
INR3
INR3
R7
4.7K
SCL
TIR
INL3
TP8
C11
0.22uF
C10
0.22uF
C13
0.22uF
C12
0.22uF
C15
0.22uF
C14
0.22uF
VCC
VCC
33
CON4
SE AUDIO INPUT3
7
30
18,19
INR1
INR2
C2
1uF
TOL
C3
1uF
LOR
INL2
VCC
TP4
34
INL1
LOL
U1
INR1
CON3
SE AUDIO INPUT2
3
IS31FL3728
CON2
SE AUDIO INPUT1
Figure 2: IS31AP4833 Application Schematic
Integrated Silicon Solution, Inc. – www.issi.com
RevA, 01/10/2013
3
CON6
HEAD PHONE
C22
1uF
IS31AP4833 Treble and Bass Control With 3D Enhancement Audio Power
Amplifier Evaluation Board Guide
Bill of Materials
Name
Symbol
Audio Amplifier
U1
LDO
Description
Qty
Supplier
Part No.
ClassAB Audio Amplifier
1
ISSI
IS31AP4833
U2
Low-dropout
1
PAM
PAM3101
MCU
U3
Microcontroller
1
NXP
LPC922
LED Driver
U4
Array LED Driver
1
ISSI
IS31FL3728
Displayers
DIG1~DIG4
Dual Digit Display Common
Kathode
4
ZSO
2281AS
Diodes
D1~D6
Diode, LED Blue, SMD
6
Everlight
Diodes
D7~D10
Diode, LED Red, SMD
4
Everlight
Resistor
R1
RES,2.7k,1/16W,±5%,SMD
1
Resistors
R2~R4,R22
RES,100k,1/16W,±5%,SMD
3
Resistors
R5~R7,R23,R24
RES,4.7k,1/16W,±5%,SMD
5
Resistors
R8,R9
RES,100R,1/16W,±5%,SMD
2
Resistor
R10~R21
RES,1k,1/16W,±5%,SMD
12
Capacitors
C1,C26
CAP,10µF,16V,±20%,SMD
2
Regulator
CAP, 1µF,16V,±20%,SMD
6
Capacitors
C2,C3,C4,C15,
C17,C23
C5,C6,C7,C8
CAP, 2.2nF,16V,±20%,SMD
4
Capacitor
C9
CAP,68nF,16V,±20%,SMD
1
Capacitors
C10~C19,C29
CAP, 0.22µF,16V,±20%,SMD
11
Capacitor
C21
CAP,10nF,16V,±20%,SMD
1
Capacitors
C24,C25
CAP, 22µF,10V,±20%,SMD
2
Capacitors
C27,C28
CAP, 0.1µF,16V,±20%,SMD
2
Buttons
K1~K14
Capacitors
Button
SMD
14
Table 2: Bill of Materials, refers to Figure 2 above.
Integrated Silicon Solution, Inc. – www.issi.com
RevA, 01/10/2013
4
19-217/BHC-ZL
1M2RY/3T
19-217/BHC-ZL
1M2RY/3T
IS31AP4833 Treble and Bass Control With 3D Enhancement Audio Power
Amplifier Evaluation Board Guide
0
0
2
2
1
1
2
1
2
2
1
2
2
1
1
2
1
2
2
1
2
1
2
8
8
3
0
3
2
9
9
9
1
2
1
2
4
5
7
8
3
3
3
3
6
1
3
3
3
3
3
3
3
3
3
3
7
8
8
8
1
1
2
1
2
1
2
1
2
1
2
2
1
0
2
0
5
5
10
9
8
7
6
10
9
8
7
6
10
9
8
7
6
10
9
8
7
6
4
4
1
3
2
3
2
2
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
2
3
4
1
5
1
Figure 3: Board Component Placement Guide -Top Layer
Integrated Silicon Solution, Inc. – www.issi.com
RevA, 01/10/2013
5
IS31AP4833 Treble and Bass Control With 3D Enhancement Audio Power
Amplifier Evaluation Board Guide
Figure 4: Board PCB Layout- Top Layer
Integrated Silicon Solution, Inc. – www.issi.com
RevA, 01/10/2013
6
IS31AP4833 Treble and Bass Control With 3D Enhancement Audio Power
Amplifier Evaluation Board Guide
0
0
2
2
1
1
2
1
2
2
1
2
2
1
1
2
1
2
2
1
2
1
2
8
8
3
0
3
2
9
9
9
1
2
1
2
4
5
7
8
3
3
3
3
6
1
3
3
3
3
3
3
3
3
3
3
7
8
8
8
1
1
2
1
2
1
2
1
2
1
2
2
1
0
2
0
5
5
10
9
8
7
6
10
9
8
7
6
10
9
8
7
6
10
9
8
7
6
4
4
1
3
2
3
2
2
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
1
Figure 5: Board Component Placement Guide -Bottom Layer
Integrated Silicon Solution, Inc. – www.issi.com
RevA, 01/10/2013
7
IS31AP4833 Treble and Bass Control With 3D Enhancement Audio Power
Amplifier Evaluation Board Guide
Figure 6: Board PCB Layout-Bottom Layer
Integrated Silicon Solution, Inc. – www.issi.com
RevA, 01/10/2013
8
IS31AP4833 Treble and Bass Control With 3D Enhancement Audio Power
Amplifier Evaluation Board Guide
Copyright © 2013 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification
and its products at any time without notice. ISSI assumes no liability arising out of the application or use of any information,
products or services described herein. Customers are advised to obtain the latest version of this device specification before relying
on any published information and before placing orders for products.
Integrated Silicon Solution, Inc. does not recommend the use of any of its products in life support applications where the failure or
malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety
or effectiveness. Products are not authorized for use in such applications unless Integrated Silicon Solution, Inc. receives written
assurance to its satisfaction, that:
a.) the risk of injury or damage has been minimized;
b.) the user assume all such risks; and
c.) potential liability of Integrated Silicon Solution, Inc is adequately protected under the circumstances
Integrated Silicon Solution, Inc. – www.issi.com
RevA, 01/10/2013
9