IS31AP4833
TREBLE AND BASS CONTROL WITH 3D ENHANCEMENT AUDIO POWER DRIVER
August 2012
GENERAL DESCRIPTION
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.
The IS31AP4833 uses flexible I2C control interface for
multiple application requirements. It also features 3D
sound circuitry which can be externally adjusted via a
simple RC network.
The IS31AP4833 features a 13 steps tone control
(-12dB ~ +12dB, 2dB/step) and a 29 steps volume
control (mute, -42dB ~ +12dB, 2dB/step) for the
headphone and stereo outputs. The volume and tone
are controlled through an I2C compatible interface.
The IS31AP4833 can get independent volume control
for two channels.
IS31AP4833 is available in QFN-36(4mm × 4mm) and
TQFP-48(7mm × 7mm) package. It operates from 3.0V
to 5.5V over the temperature range of -40°C to +85°C.
FEATURES
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
QFN-36(4mm × 4mm) and TQFP-48(7mm × 7mm)
package
APPLICATIONS
Cell phones, PDA, MP4, PMP
Portable and desktop computers
Desktops audio system
Multimedia monitors
TYPICAL APPLICATION CIRCUIT
Figure 1
Typical Application Circuit
Integrated Silicon Solution, Inc. – www.issi.com
Rev. A, 07/22/2012
1
IS31AP4833
PIN CONFIGURATION
Package
Pin Configuration (Top View)
QFN-36
40 INR+
45 INL+
INL1 1
NC 2
LOL 3
TIL 4
OUTL+ 5
NC 6
37 INR2
36 INR1
35 NC
34 LOR
33 TIR
32 OUTR+
31 NC
30 VCC
29 NC
28 OUTR-
27 LIR
26 TOR
25 SCL
NC 24
39 INR3
3DN 22
46 INL3
48 INL2
43 GND
42 GND
41 INR-
44 INL-
47 NC
TQFP-48
VCC 7
NC 8
OUTL- 9
LIL 10
TOL 11
SDA 12
NC 13
SDB 14
BYPASS 15
NC 16
RST 17
GND 18
GND 19
HP 20
3D_EN 21
3DP 23
Integrated Silicon Solution, Inc. – www.issi.com
Rev. A, 07/22/2012
38 NC
2
IS31AP4833
PIN DESCRIPTION
No.
QFN-36
1
2
3
4
5, 23
6
7
8
9
10
11
12
13
14,32
15
16
17
18
19
20
21
22
24
25
26
27
28
29
30
31
33
34
35
36
TQFP-48
1
3
4
5
7,30
9
10
11
12
14
15
2,6,8,13,16,24,
29,31,35,38,47
17
18,19,42,43
20
21
22
23
25
26
27
28
32
33
34
36
37
39
40
41
44
45
46
48
Pin
INL1
LOL
TIL
OUTL+
VCC
OUTL-
LIL
TOL
SDA
SDB
BYPASS
NC
RST
GND
HP
3D_EN
3DN
3DP
SCL
TOR
LIR
OUTR-
OUTR+
TIR
LOR
INR1
INR2
INR3
INR+
INR-
INL-
INL+
INL3
INL2
Thermal Pad
Description
Left channel single-ended input1.
Left channel tone control loop out.
Left channel tone control in.
Positive output of left channel.
Power supply.
Negative output of left channel.
Left channel tone control loop in.
Left channel tone control out.
I2C serial data.
It will into shutdown mode when pull low.
Bypass capacitor which provides the common
mode voltage.
No connection.
Reset chip logic and states. Active low.
Ground.
Detect HP insert or not.
It will into 3D enhance mode when pull high.
Negative channel 3D input.
Positive channel 3D input.
I2C serial clock.
Right channel tone control out.
Right channel tone control loop in.
Negative output of right channel.
Positive output of right channel.
Right channel tone control in.
Right channel tone control loop out.
Right channel single-ended input1.
Right channel single-ended input2.
Right channel single-ended input3.
Right channel positive differential input.
Right channel negative differential input.
Left channel negative differential input.
Left channel positive differential input.
Left channel single-ended input3.
Left channel single-ended input2.
Connect to GND.
Integrated Silicon Solution, Inc. – www.issi.com
Rev. A, 07/22/2012
3
IS31AP4833
ORDERING INFORMATION
INDUSTRIAL RANGE: -40°C TO +85°C
Order Part No.
IS31AP4833-QFLS2-TR
IS31AP4833-TQLS2
Package
QFN-36, Lead-free
TQFP-48, Lead-free
QTY
2500/Reel
250/Tray
Copyright © 2012 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
Rev. A, 07/22/2012
4
IS31AP4833
ABSOLUTE MAXIMUM RATINGS
Supply voltage, V
CC
Voltage at any input pin
Maximum junction temperature, T
JMAX
Storage temperature range, T
STG
Operating temperature range, T
A
-0.3V
~ +6.0V
-0.3V
~ V
CC
+0.3V
150°C
-65°C
~ +150°C
-40°C
~ +85°C
Note:
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only
and functional operation of the device at these or any other condition beyond those indicated in the operational sections of the specifications is
not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
T
A
= 25°C, unless otherwise noted. Typical value are T
A
= 25°C, V
CC
= 3.6V.
Symbol
V
CC
I
SD
I
CC
V
IH_HP
V
IL_HP
V
IH
V
IL
Parameter
Supply voltage
Shutdown current
Quiescent
power
supply current
HP input high-voltage
HP input low-voltage
Input high-voltage
Input low-voltage
V
SDB
= 0V
V
SDB
= V
CC
, software shutdown
V
IN
= 0V, I
O
= 0A, V
HP
= 0V, no load
V
IN
= 0V, I
O
= 0A, V
HP
= 5V, no load
V
CC
= 5.0V
V
CC
= 3.0V
V
CC
= 5.0V
V
CC
= 3.0V
1.4
0.4
4.1
2.3
3.4
1.54
Condition
Min.
3.0
1
1
6
4
Typ.
Max.
5.5
Unit
V
μA
mA
V
V
V
V
AC CHARACTERISTICS
(Note 1)
T
A
= 25°C, V
CC
= 5.0V, unless otherwise noted.
Symbol
Parameter
Condition
THD+N = 10%, f = 1kHz, R
L
= 4Ω, speaker
THD+N = 1%, f = 1kHz, R
L
= 4Ω, speaker
THD+N = 10%, f = 1kHz, R
L
= 8Ω, speaker
Po
Output power
THD+N = 1%, f = 1kHz, R
L
= 8Ω, speaker
THD+N = 10%, f = 1kHz, R
L
= 32Ω,
headphone
THD+N = 1%, f = 1kHz, R
L
= 32Ω,
headphone
THD+N
P
O
= 1.5W, f = 1kHz, R
L
= 4Ω, speaker
Total
harmonic
P
O
= 0.9W, f = 1kHz, R
L
= 8Ω, speaker
distortion plus noise
P
O
= 75mW, f = 1kHz, R
L
= 32Ω, headphone
Wake-up time from
shutdown
Power
supply
V
CC
= 3.0V, f = 217Hz, R
L
= 8Ωk, speaker
rejection ratio
Noise
V
CC
= 3.0V~5.0V, V
IN
= 0V, R
L
= 4Ω, speaker
Min.
Typ.
2.80
2.20
1.75
1.45
0.11
0.091
0.069
0.046
0.022
130
-67
60
ms
dB
μV
%
W
Max.
Unit
t
WU
PSRR
V
NO
Integrated Silicon Solution, Inc. – www.issi.com
Rev. A, 07/22/2012
5
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