APA4863
Stereo 2.2W Audio Power Amplifier
Features
•
•
•
•
Depop Circuitry Integrated
Thermal Shutdown Circuitry Integrated
Bridge-Tied Load (BTL) or Single-Ended
(SE) Modes Operation
Output Power at 1% THD+N, V
DD
=5V
- 2.2W/Ch (Typ.) into a 3Ω Load
- 1.8W/Ch (Typ.) into a 4Ω Load
- 1.2 W/Ch (Typ.) into a 8Ω Load
General Description
The APA4863 is a stereo bridge-tied audio power ampli-
fier in various power packages, including SOP, TSSOP,
and TSSOP-P. When connecting to a 5V voltage supply,
the APA4863 is capable of delivering 2.2W/1.8W/1.2W of
continuous RMS power per channel into 3Ω/4Ω/8Ω
bridge-tied loads with less than 1% THD+N respectively.
When APA4863 operates in the single-ended load, it is
capable of delivering 90mW of continuous RMS power
per channel into 32Ω load. The APA4863 simplifies de-
sign and frees up board space for other features.
T h e A PA4863 also served well in low-voltage
applications, which provides 750mW (1% THD+N) per
channel into 4Ω loads with a 3.3V supply voltage. Both of
the depop circuitry and the thermal shutdown protection
circuitry are integrated in the APA4863, which reduces
pops and clicks noise during power up and when using
the shutdown mode and protects the chip from being
destroyed by over-temperature failure. To simplify the au-
dio system design in notebook computer applications,
the APA4863 combines a stereo bridge-tied loads mode
for speaker drive and a stereo single-end mode for head-
phone drive into a single chip, where both modes are
easily switched by the HP-IN input control pin signal. For
power sensitive applications, the APA4863 also features
a shutdown function which keeps the supply current only
0.5 µA (typ.).
•
•
•
•
Shutdown Control Mode, I
SD
= 0.5 µA
Output Power (SE) at 0.5% THD+N, V
DD
=5V
- 90mΩ/Ch (Typ.) into a 32Ω Load
Various Power Packages Available
SOP-16, TSSOP-20, and TSSOP-20P
Lead Free and Green Devices Available
(RoHS Compliant)
Applications
•
•
•
Stereo Audio Power Amplifier for Notebook
Computer
Portable Televisions
Portable and Desktop Computers
Ordering and Marking Information
APA4863
Assembly Material
Handling Code
Temperature Range
Package Code
APA4863
K/O/R :
APA4863
XXXXX
Package Code
K : SOP-16 O : TSSOP-20 R : TSSOP-20P
Operating Ambient Temperature Range
I : -40 to 85
o
C
Handling Code
TR : Tape & Reel
Assembly Material
G : Halogen and Lead Free Device
XXXXX - Date Code
Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which
are fully compliant with RoHS. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J-STD-020D for
MSL classification at lead-free peak reflow temperature. ANPEC defines “Green” to mean lead-free (RoHS compliant) and halogen
free (Br or Cl does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by
weight).
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise
customers to obtain the latest version of relevant information to verify before placing orders.
Copyright
©
ANPEC Electronics Corp.
Rev. A.7 - Oct., 2009
1
www.anpec.com.tw
APA4863
Pin Configuration
SHUTDOWN
GND
+ OUT A
V
DD
- OUT A
- IN A
GND
+ IN A
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
HP-IN
GND
+ OUT B
V
DD
- OUT B
- IN B
BYPASS
+ IN B
SHUTDOWN
GND
+ OUT A
V
DD
- OUT A
- IN A
GND
+ IN A
NC
NC
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
HP-IN
GND
+ OUT B
V
DD
- OUT B
- IN B
BYPASS
+ IN B
NC
NC
SOP-16
(Top View)
TSSOP-20
(Top View)
SHUTDOWN
GND
+ OUT A
V
DD
- OUT A
- IN A
GND
+ IN A
GND
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
HP-IN
GND
+ OUT B
V
DD
- OUT B
- IN B
BYPASS
+ IN B
GND
GND
Thermal
Pad
TSSOP-20P
(Top View)
TSSOP-20P
(Bottom View)
Absolute Maximum Ratings
Symbol
V
DD
T
A
T
J
T
STG
T
S
Supply Voltage
Operating Ambient Temperature Range
Maximum Junction Temperature
Storage Temperature Range
(Note 1)
Rating
6
-40 to 85
150
-65 to +150
260
Unit
V
°C
°C
°C
°C
(Over operating free-air temperature range unless otherwise noted.)
Parameter
Maximum Lead Soldering Temperature, 10 Seconds
Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
Recommended Operating Conditions
Symbol
V
DD
Supply Voltage
V
DD
=5V, 250mW/Ch average power
4-Ω stereo BTL drive, with proper
PCB design
V
DD
=5V, 1.8 W/Ch average power
4-Ω stereo BTL drive, with proper
PCB design and 300 CFM forced-air
cooling
V
DD
=5 V
V
DD
=3.3V
Parameter
Min.
3
-20
Range
Typ.
5
-
Max.
5.5
85
°C
-20
-
85
V
Unit
T
A
Operating Free-Air Temperature
V
ICM
Common Mode Input Voltage
1.25
1.25
-
-
4.5
2.7
V
Copyright
©
ANPEC Electronics Corp.
Rev. A.7 - Oct., 2009
2
www.anpec.com.tw
APA4863
Dissipation Rating Table
Packge
SOP-16
(Note 2)
TSSOP-20
(Note 3)
TSSOP-20P
(Note 3)
Air Flow
(CFM)
0
0
200
0
200
Thermal Resistance
θ
JA
(
o
C/W)
80
73.2
66.6
37.6
32.3
T
A
≤25
o
C
1.6W
1.7W
1.8W
3.3W
3.8W
T
A
=70
o
C
1.0W
1.1W
1.2W
2.1W
2.4W
Note 2 : The parameter is measured with the recommended copper heat sink pattern on an 2-layer PCB, 11.7 in
2
3.0×2.4 in
2
in PCB,
1oz. copper, 3.0×1.5 in
2
in coverage at Top-layer and Bottom-layer at 100% coverage (7.2in
2
).
Note 3 :The parameter is measured with the JEDEC standard test boards (multi-layer PCB).
Electrical Characteristics
Electrical Characteristics for Entire IC
The following specifications apply for V
DD
= 5V unless otherwise noted. Limits apply for T
A
= 25°C
Symbol
V
DD
I
DD
I
SD
V
IH
V
IL
Parameter
Supply Voltage
Quiescent Power Supply Current
Shutdown Current
Headphone High Input Voltage
Headphone Low Input Voltage
V
IN
=0V, I
O
=0A, HP-IN=0V
V
IN
=0V, I
O
=0A, HP-IN=4V
V
PIN1
= V
DD
Test Conditions
Min.
3
-
5
4
-
APA4863
Typ.
-
9
5
0.5
-
-
Max.
5.5
13.5
7.5
-
-
0.8
V
mA
µA
V
V
Unit
Electrical Characteristics for BTL Mode Operation
The following specifications apply for V
DD
= 5V unless otherwise noted. Limits apply for T
A
= 25°C
APA4863
Symbol
V
OS
Parameter
Output Offset Voltage
V
IN
=0V
THD+N=1%, f
in
=1kHz
R
L
=3Ω
R
L
=4Ω
R
L
=8Ω
THD+N=10%, f
in
=1kHz
R
L
=3Ω
R
L
=4Ω
R
L
=8Ω
A
VD
=2, f
in
=1kHz
R
L
=4Ω, P
O
=1.8W
R
L
=8Ω, P
O
=1W
V
DD
=5V, V
RIPPLE
=200mV
RMS
,
R
L
=8Ω, C
B
=2.2µF
f
in
=1kHz, C
B
=2.2µF, P
O
=1W,
R
L
=8Ω
V
DD
=5V, P
O
=1.1W, R
L
=8Ω
Test Conditions
Min.
-
-
Typ.
5
2.2
1.8
1.2
2.7
2.3
1.5
0.3
0.15
64
90
95
Max.
-
-
W
-
mV
Unit
P
O
Output Power
-
THD+N
PSRR
X
TALK
SNR
Total Harmonic Distortion Plus Noise
Power Supply Rejection Ratio
Channel Separation
Signal-to-Noise Ratio
-
-
-
-
-
-
-
-
%
dB
dB
dB
Copyright
©
ANPEC Electronics Corp.
Rev. A.7 - Oct., 2009
3
www.anpec.com.tw
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