2W STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN AA4003
Data Sheet
1
Aug. 2008 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
General Description
The AA4003 is a Class AB stereo Audio Power Ampli-
fier which can deliver 2.0W into 4 speakers with lim-
itation of THD+N less than 1%. The chip is designed
specially for Portable DVD player, Portable Media
Player, LCD monitor and Digital Photo Frame applica-
tions.
AA4003 is available in package of SOIC-16 and
TSSOP-20 (EDP).
Features
·Output Power,
BTL: 2.0W/CH (4, THD+N1%)
SE: 160mW/CH (16, THD+N1%)
·Supply Voltage Range: 2.7V to 5.5V
·External Feedback Loop for Flexible Gain Set-up
·Low Power Consumption at Shutdown Mode
0.7µA Typical
·SE, BTL Mode Switchable
·Optimized Click/POP Noise Suppression
·Thermal Shutdown Protection
Applications
·Portable DVD Player
·Portable Media Player
·LCD Monitor
·Digital Photo Frame
Figure 1. Packages Type of AA4003
TSSOP-20 (EDP)
SOIC-16
2W STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN AA4003
Data Sheet
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Aug. 2008 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
Pin Configuration
G Package
(
TSSOP-20 (EDP
))
M Package
Figure 2. Pin Configurations of AA4003 (Top View)
SHUTDOWN
GND
OUTL+
VDD
OUTL-
LIN-
GND
LIN+
HP-SENSE
GND
OUTR+
VDD
OUTR-
RIN-
BYPASS
RIN+
SHUTDOWN
GND
OUTL+
VDD
OUTL-
LIN-
GND
LIN+
HP-SENSE
GND
OUTR+
VDD
OUTR-
RIN-
BYPASS
RIN+
PGND
PGND
PGND
PGND
(SOIC-16)
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
2W STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN AA4003
Data Sheet
3
Aug. 2008 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
Pin Description
Pin Number Pin Name Function
G Package M Package
1 1 SHUTDOWN Shutdown mode enable pin, active High
2, 7, 19 2, 7, 15 GND Signal ground
3 3 OUTL+ Left channel positive output
4, 17 4, 13 VDD Power supply pin
5 5 OUTL- Left channel negative output
6 6 LIN- Left channel negative input
8 8 LIN+ Left channel positive input
9, 10, 11, 12 PGND Power ground, used for thermal release
13 9 RIN+ Right channel positive input
14 10 BYPASS Internal reference voltage pin, connect a 1.0µF capacitor to GND
15 11 RIN- Right channel negative input
16 12 OUTR- Right channel negative output
18 14 OUTR+ Right channel positive output
20 16 HP-SENSE SE, BTL Mode switch pin,
L BTL Mode
H SE Mode
2W STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN AA4003
Data Sheet
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Aug. 2008 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
Circuit Type E1: Lead Free
AA4003 -
Package Temperature
Range
Part Number Marking ID
Packing Type
Lead Free Green Lead Free Green
TSSOP-20
(EDP) -40 to 85
AA4003G-E1 AA4003G-G1 AA4003G AA4003GG Tube
AA4003GTR-E1 AA4003GTR-G1 AA4003G AA4003GG Tape & Reel
SOIC-16 -40 to 85
AA4003M-E1 AA4003M-G1 AA4003M-E1 AA4003M-G1 Tube
AA4003MTR-E1 AA4003MTR-G1 AA4003M-E1 AA4003M-G1 Tape & Reel
Package
G: TSSOP-20 (EDP)
TR: Tape and Reel
Blank: Tube
M: SOIC-16
Ordering Information
G1: Green
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Products with
"G1" suffix are available in green packages.
2W STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN AA4003
Data Sheet
5
Aug. 2008 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
Absolute Maximum Ratings (Note 1)
Note 1: Stresses greater than 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 conditions beyond those indicated in
the operation is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability.
Note 2: Chip is soldered to 200mm2 copper (top side solder mask) of 1oz. on PCB with 8 x 0.5mm vias..
Recommended Operating Conditions
Parameter Symbol Min Max Unit
Supply Voltage VDD 2.7 5.5 V
Operating Ambient Temperature TA-40 85 oC
Parameter Symbol Value Unit
Supply Voltage VDD 6V
Input Voltage VIN -0.3 to VDD + 0.3 V
Power Dissipation PDInternally limited
Package Thermal Resistance RθJA
M Package 90
oC/W
G Package 50 (Note 2)
Operating Junction Temperature TJ150 oC
Storage Temperature Range TSTG -65 to 150 oC
Lead Temperature 1.6mm from Case for 10 Seconds TLEAD 260 oC
ESD (Human Body Model) 2000 V
ESD (Machine Model) 300 V
2W STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN AA4003
Data Sheet
6
Aug. 2008 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
(VDD=5V, TA=25oC, CI=1µF, COUT=220µF and RI=RF=20k unless otherwise specified. For SE Mode, HP_SENSE=5V,
P a r a m e t e r S y m b o l C o n d i t i o n s Min T y p M a x U n i t
Quiescent Current IDD
SE Mode, VIN=0, IO=0 310
mA
BTL Mode, VIN=0, IO=0 620
Shutdown Current ISD VSHUTDOWN=5V 0.7 2.0 µA
HP_SENSE LOGIC
VIH 4V
VIL 0.8 V
SHUTDOWN LOGIC
VIH 3V
VIL 0.8 V
Thermal Shutdown Temperature 170 oC
Hysteresis Temperature Window 25 oC
SE Mode
Output Power PO
THD+N=1%, RL=32 80
mW
THD+N=10%, RL=32 110
THD+N=1%, RL=16 160
THD+N=10%, RL=16 220
Total Harmonic Distortion + Noise THD+N PO=75mW, RL=32Ω, 0.2 %
Signal to Noise Ratio SNR PO=75mW, RL=32Ω, 90 dB
Crosstalk XTALK PO=75mW, RL=32Ω, f=1kHz -80 dB
Power Supply Rejection Ratio PSRR Cb=1µF, f=1KHz,
VRIPPLE=0.2VRMS, RL=1660 dB
BTL Mode
Output Offset Voltage VOS VIN=0V, No load ±5±50 mV
Output Power PO
THD+N=1%, RL=4 2
W
THD+N=10%, RL=4 2.5
THD+N=1%, RL=8 1.1
THD+N=10%, RL=8 1.5
Total Harmonic Distortion + Noise THD+N PO=1W, RL=4Ω, 0.1 %
Signal to Noise Ratio SNR PO=1W, RL=8Ω, 95 dB
Crosstalk XTALK PO=1W, RL=8Ω, f=1kHz -80 dB
Power Supply Rejection Ratio PSRR Cb=1µF, f=1KHz,
VRIPPLE=0.2VRMS, RL=867 dB
Electrical Characteristics
for BTL Mode, HP_SENSE=0V. )
2W STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN AA4003
Data Sheet
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Aug. 2008 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
Typical Performance Characteristics
Figure 3.
Quiescent Current vs. Supply Voltage
Figure 4.
Quiescent Current vs. Ambient Temperature
Figure 5.
THD+N vs. Output Power Figure 6. THD+N vs. Output Power
10m 100m
1E-3
0.01
0.1
1
10
300m
THD+N (%)
Output Power (W)
VDD=5.0V, SE Mode
f=1kHz, LPF=30kHz
RL=16
RL=32
@ SE Mode @ BTL Mode
10m 100m 1
0.01
0.1
1
10
3
THD+N (%)
Output Power (W)
VDD=5.0V, BTL Mode
f=1kHz
LPF=30kHz
RL=4
RL=8
2W STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN AA4003
Data Sheet
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Aug. 2008 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
Typical Performance Characteristics
Figure 7.
THD+N vs. Output Power
Figure 8.
THD+N vs. Output Power
Figure 9. THD+N vs. Frequency
@ SE Mode
Figure 10. THD+N vs. Frequency
@ BTL Mode
@ SE Mode @ BTL Mode
100 1k 10k
0.01
0.1
1
10
20k
20
THD+N (%)
Frequency (Hz)
BTL Mode, VDD=5.0V
PO=1W, RL=8
LPF=80kHz
100 1k 10k
0.01
0.1
1
10
20k20
THD+N (%)
Frequency (Hz)
SE Mode, VDD=5.0V
PO=75mW, RL=32
LPF=80kHz, COUT=1000µF
100 1k 10k
0.01
0.1
1
10
20 20k
THD+N (%)
Frequency (Hz)
VDD=5.0V, BTL Mode
PO=1.5W, RL=4
LPF=80kHz
100 1k 10k
0.01
0.1
1
10
20 20k
THD+N (%)
Frequency (Hz)
VDD=5.0V, SE Mode
COUT=1000µF, PO=150mW
RL=16, LPF=80kHz
2W STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN AA4003
Data Sheet
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Aug. 2008 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
Typical Performance Characteristics (Continued)
Figure 11. Output Power vs. Resistor Load
0 10203040506070
200
400
600
800
VDD=5.0V, SE Mode
f=1kHz, LPF=30kHz
THD+N=10%
THD+N=1%
Output Power (mW)
Resistor Load (ohm)
@ SE Mode
Figure 12. Output Power vs. Resistor Load
0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0
0.0
0.5
1.0
1.5
2.0
2.5 VDD=5.0V, BTL Mode
f=1kHz, LPF=30kHz
THD+N=10%
THD+N=1%
Output Power (W)
Resistor Load ()
@ BTL Mode
Figure 13. Output Power vs. Supply Voltage
@ SE Mode
Figure 14. Output Power vs. Supply Voltage
2.5 3.0 3.5 4.0 4.5 5.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
BTL Mode, RL=4
f=1kHz, LPF=30kHz
THD+N=10%
THD+N=1%
Output Power (mW)
Supply Voltage (V)
@ BTL Mode
2.5 3.0 3.5 4.0 4.5 5.0
0
50
100
150
200
250
SE Mode, RL=16
f=1kHz, LPF=30kHz
THD+N=10%
THD+N=1%
Output Power (mW)
Supply Voltage (V)
2W STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN AA4003
Data Sheet
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Aug. 2008 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
Typical Performance Characteristics (Continued)
Figure 15.
PSRR vs. Frequency Figure 16. PSRR vs. Frequency
Figure 17.
Start-up Time vs. Bypass Capacitor Figure 18. Closed Loop Frequency Response
10 100 1k 10k 100k 1M 10M
-20
-16
-12
-8
-4
0
4
-280
-240
-200
-160
-120
-80
SE Mode, VDD=5.0V
RF=RI=20k, COUT=1000µF
Phase
Phase (deg)
Gain (dB)
Frequency (Hz)
Gain
0.20.40.60.81.0
0
200
400
600
800
1000
VDD=5.0V
Start-up Time (ms)
Bypass Capacitor (µF)
@ SE Mode @ BTL Mode
10 100 1k 10k
40
45
50
55
60
65
70
75
20k
VDD=5.0V, BTL Mode
RL=8, Cb=1.0µF
VRIPPLE=0.2Vrms
PSRR (dB)
Frequency (Hz)
10 100 1k 10k
10
20
30
40
50
60
70
20k
PSRR (dB)
Frequency (Hz)
VDD=5.0V, SE Mode
RL=32,Cb=1.0µF
VRIPPLE=0.2Vrms
2W STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN AA4003
Data Sheet
11
Aug. 2008 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
Application Information
SE/BTL Mode, HP_SENSE Pin
The AA4003 can operate under 2 types of output
configuration, BTL (Bridged-Tied-Load) mode and SE
(Single-Ended) mode, determined by HP_SENSE pin's
logic level. (Here is the discussion about left channel
only, it equally applies to right channel.)
When HP_SENSE pin is held low which sets the chip
in BTL mode, the AMP2L unit is turned on. AMP2L
has fixed unity gain internally, AC signal at OUT+ is
180 degree phase shifted from OUT-. Because the DC
component (Output Bias voltage, approx 1/2 VDD)
between OUT+ and OUT- is canceled, there is no
necessity to use DC block capacitors for main speak. In
BTL mode, output voltage swing across main speaker
is about 2 times that in SE mode, so there is 4 times
output power compared to SE mode with same load
and input. (see Figure 19)
If applying high level to HP_SENSE pin which sets the
chip in SE mode, the AMP2L unit is in high impedance
state. There is no current loop between OUT+ and
OUT-, the main speak is naturally disabled without any
hardware change. The output audio signal rides on bias
voltage at OUT- (Output Bias voltage, approx 1/2
VDD) , so it has to use a capacitor COUT to block DC
bias and couple AC signal to headphone speak. (See
Figure 20)
It is recommended to connect HP_SENSE to the
headphone jack switch pin illustrated in Figure 19.
When headphone plug is not inserted, the voltage of
HP_SENSE pin is determined by voltage divider
formed by R1 and RPD. For given resistor's value in
Figure 19, R1=100k, RPD=1.5k, DC voltage at
HP_SENSE is about 74mV. AC signal equals output
amplitude of OUT- through COUT, so signal at
HP_SENSE node is 74mV DC plus AC signal. The
maximum peak-to-peak voltage at OUT- is no greater
than VDD (supply voltage 5.0V), so the positive
maximum voltage of HP_SENSE node will be no
greater than 2.5V+75mV2.575V, which is less than
HP_SENSE input high level minimum value (4.0V).
That means the chip is in BTL mode and there is no
risk of operation mode switch between SE and BTL.
When headphone plug is inserted, as the RPD is
disconnected from R1, the voltage of HP_SENSE pin
is pulled up by R1 to VDD and sets the chip in SE
mode.
HP_SENSE pin can also be connected to MCU I/O
port to control the mode switch through MCU.
It is necessary to note that AA4003 still can drive
headphone even in BTL mode because OUT- is always
active whatever the chip is in SE or BTL mode.
CIN, COUT
, Cb and CS (Power Supply) Selection
For input stages of AA4003, input capacitors CI is used
to accommodate different DC level between input
source and AA4003 bias voltage (about 2.31V). Input
capacitors CI and input resistors RI form a first order
High Pass Filter, which determines the lower corner
frequency according to the classic equation below,
Figure 19. Output Configuration for Left Channel
in BTL Mode
Figure 20. Output Configuration for Left Channel
in SE Mode
20k
20k
Left Out-
Left Out+
+
_
+
_
+
COUT
220µF
RPD
1.5k
AMP1L
AMP2L
SLEEVE
HEADPHONE
JACK
R2
100k
HP_SENSE= Low Level
R1
100k
VDD
Main
Speak
20k
20k
Left Out-
Left Out+
+
_
+
_
+
COUT
220µF
AMP1L
AMP2L
R2
100k
R1
100k
VDD
Headphone
Speak
Main
Speak
HP_SENSE= High Level
RPD
1.5k
2W STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN AA4003
Data Sheet
12
Aug. 2008 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
Application Information (Continued)
.............................................(1)
Similarly, for output stage in SE mode, output
capacitor (COUT), and headphone load also form a first
order High Pass Filters, and its cut-off frequency is
determined by equation 2.
......................................(2)
The purpose of bypass capacitor (Cb) is to filter
internal noise, reduce harmonic distortion, and
improve power supply rejection ratio performance.
Tantalum or ceramic capacitor with low ESR is
recommended, and it should be placed as close as
possible to the chip in PCB layout. The chip will not
work until internal DC bias is set up completely. So the
size of Cb will also affect the chip start up time, which
is approx linearly proportional to the value of bypass
capacitor. For AA4003, here are various start-up times
for several typical capacitor values. (see Figure 17)
For AA4003 power supply, it is better to use an
individual power source generated from voltage
regulator split from video, digital circuit units in
system. The power supply bypass capacitors, CS, is
recommended to use one low ESR electrolytic
capacitor between 4.7µF to 10µF with a parallel 0.1µF
ceramic capacitor which is located close to the chip.
Setup Proper Gain, Design Example
The closed loop gain of AA4003 is determined by the
ratio of feedback resistor (RF) to input resistor (RI).
........................................................(3)
Example:
VDD=5V, RL=8, BTL configuration, Desired output
power PO=1.0W (each channel), THD+N 1%.
Input signal, VIN=1.0VRMS from D-A converter.
Step 1,
To check if the chip can deliver 1W to 8 load with the
limitation of THD+N 1%, VDD=5V. From Figure 6,
Figure 12, AA4003 can deliver 1W to 8 load each
channel.
Step 2,
If yes, to calculate output voltage,
So pass-band gain, AV=VOUT/VIN=2.83x.
Step 3,
Assuming input resistor is 20k, the feedback
resistor=20k*1.415=28.3k.. Select the closest
standard value 28k.
Shutdown
AA4003 has a shutdown feature to reduce power
consumption. If apply high level to shutdown pin,
output amplifiers will be turned off, bias circuit is also
disabled, the maximum current drawn from VDD is less
than 2.0µA. A logic low level will enable the device.
Optimizing CLICK/POP Noise
The AA4003 includes optimized circuits to suppress
CLICK/POP noise during power up/power down
transition.
In BTL mode the AA4003 can effectively reduce most
common mode signal including CLICK/POP noise.
In SE mode, optimized ramp for rise/fall edge of BIAS
can significantly reduce click/pop noise due to charge
and/or discharge output capacitor (COUT).
Furthermore, increasing bypass capacitor value (Cb)
can slower ramp of charging bypass capacitor, prolong
start-up time, mask most of transient noises before bias
voltage is set up completely. It is recommended to use
1.0µF capacitor with lower ESR.
Cb (µF) Start up Time (ms)
0.33 340
0.47 420
1.0 970
I
F
VR
R
A=
RMSLOOUT VRPV 83.28*1 ===
OUTHP
COL CR
f
=
π
2
1
II
CIL CR
f
=
π
2
1
2W STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN AA4003
Data Sheet
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Aug. 2008 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
Application Information (Continued)
Power Dissipation, Efficiency and Thermal
Design Consideration
For Class AB amplifiers, Formula 4 is the basic
equation of efficiency worked in BTL configuration,
.......................................................(4)
here VP is output peak voltage across the load.
Thermal dissipation becomes major concern when
delivering more output power especially in BTL mode.
The maximum power dissipation can be calculated by
following equation.
......................................(5)
Here TJMAX is maximum operating junction
temperature, 150oC, TA is ambient temperature, θ JA is
thermal resistance from junction to ambient, which is
50oC/W for TSSOP-20 (EDP), given in datasheet.
Assuming TA is 25oC, the maximum power dissipation
PDMAX is about 2.5W according to formula 6.
There is an other formula about power dissipation
which is determined by supply voltage and load
resistance.
......................................(6)
If power dissipation calculated in an application is
larger than that package permitted, there will be a need
to assemble an additional heat sink, or keep ambient
temperature around the chip low, or increase load
resistance, or decrease power supply voltage.
Here is an example. Assuming VDD=5.0V, RL=4,
stereo in BTL mode,
per channel, total power dissipation PDTOTAL=2*
PDBTLMAX=2.53W. According to formula 6, maximum
ambient temperature is,
=150-50*2.53=23.5 oC
That is to say, if user wants AA4003 to delivery 2W
power per channel to 4 load at VDD=5.0V, BTL
mode, ambient temperature has to hold lower than
23.5oC. When junction temperature exceeds about
170oC, OTSD feature will be enabled, and shutdown
the device to limit total power dissipation.
There is an exposed thermal pad on bottom of the chip
to provide the direct thermal path from die to heat sink.
It is recommended to use copper on the surface of
Printed Circuit Board as heat sink. To dig some matrix
regular holes under chip, remove mask of this area
copper, and make sure to keep them contact well when
soldering on PCB are also recommended. (See Figure
21)
Recommended PCB Layout for AA4003
Using wide traces for power supply to reduce power
losses caused by parasitic resistance in all outputs is
useful to help releasing heat away from the chip. It is
recommended to place bypass capacitor, power supply
bypass capacitors as close as possible to the chip.
Figure 21 and Figure 22 show the recommended layout
for double layer PCB.
DD
P
V
V
4
π
η
=
JA
AJMAX
DMAX
TT
P
θ
=
L
DD
DBTLMAX R
V
P2
2
2
π
=
W
R
V
P
L
DD
DBTLMAX 266.1
414.3
522
2
2
2
2
=
×
×
==
π
DBTLMAXJAJMAXA PTT
=
θ
2W STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN AA4003
Data Sheet
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Aug. 2008 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
Application Information (Continued)
Figure 21. Copper and Holes under Part
Figure 22. Top Route and Silk Screens
2W STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN AA4003
Data Sheet
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Aug. 2008 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
Typical Application
Figure 23. Typical Application Circuit of AA4003 (M Package)
20k
20k
20k
20k
OUTL-
OUTL+
+
_
+
_
5
3
+
COUT
220µF1.5k
AMP1L
AMP2L
To HP-Sense circuit
SLEEVE
HEADPHONE
JACK
20k
20k
20k
20k
OUTR-
OUTR+
+
_
+
_
12
14
+
COUT
220µF
1.5k
AMP1R
AMP2R
VDD
+
CS
10µF
Left IN
1uF
+
1.0µF+
100k
100k
1µF
Right IN
+
To control pin
6
16
10 BYPASS
8
11
2,7,15
4,13
1 SHUTDOWN
HP-SENSE
LIN-
LIN+
RIN-
RIN+
9
RF
RI
RF
RI
CI
CI
RPD
RPD
Cb
VDD
2W STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN AA4003
Data Sheet
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Aug. 2008 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
TSSOP-20(EDP) Unit: mm(inch)
Mechanical Dimensions
0.650(0.026)TYP
6.200(0.244)
6.600(0.260)
#1 PIN
6.400(0.252)
6.600(0.260)
INDEX
0.750(0.030)
0.850(0.033)Dp
0.000(0.000)
0.100(0.004)
2.900(0.114)
3.100(0.122)
4.100(0.161)
4.300(0.169)
0.200(0.008)
0.280(0.011)
0.050(0.002)
0.150(0.006)
0.900(0.035)
1.050(0.041)
1.200(0.047)
MAX
0.340(0.013)
0.540(0.021)
10°
14°
0.250(0.010)TYP
0.450(0.018)
0.750(0.030) 1.000(0.039)
REF
0°
8°
R0.090(0.004)MIN
R0.090(0.004)MIN
TOP & BOTTOM
4-
0.200(0.008)MIN
4.300(0.169)
4.500(0.177)
0.100(0.004)
0.190(0.007)
EXPOSED PAD
2W STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN AA4003
Data Sheet
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Aug. 2008 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
Mechanical Dimensions (Continued)
SOIC-16 Unit: mm(inch)
7°
10.000(0.394)
6.040(0.238)
0.406(0.016)
20:1
A
1.650(0.065)
0.700(0.028)
7°
1°
5°
B
C
1.000(0.039)
S 1.000(0.039)
0.200(0.008)
20:1
B
C
50:1
C-C
0.250(0.010)
0.200(0.008)MIN
0.500(0.020)
0.600(0.024)
0.250(0.010)
Depth 0.060(0.002)
0.100(0.004)
2.000(0.079)
1.300(0.051)
1.000(0.039)
1.270(0.050)
Depth 0.200(0.008)
0.250(0.010)
0.150(0.006)
R0.200(0.008)
R0.200(0.008)
0.203(0.008)
A
3.940(0.155)
3°
8°
9.5°
8°
8°
7°
0.400(0.016)×45°
φ
φ
IMPORTANT NOTICE
BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi-
cations herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility fo r use of any its products for any
particular purpose, nor does BCD Semiconductor Man ufacturing Limited assume any liability arising out of the application or use
of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or
other rights nor the rights of others.
- Wafer Fab
Shanghai SIM-BCD Semiconductor Manufacturing Limited
800, Yi Shan Road, Shanghai 200233, China
Tel: +86-21-6485 1491, Fax: +86-21-5450 0008
BCD Semiconductor Manufacturing Limited
MAIN SITE
REGIONAL SALES OFFICE
Shenzhen Office
Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd. Shenzhen Office
Advanced Analog Circuits (Shanghai) Corporation Shenzhen Office
Room E, 5F, Noble Center, No.1006, 3rd Fuzhong Road, Futian District, Shenzhen 518026, China
Tel: +86-755-8826 7951
Fax: +86-755-8826 7865
Taiwan Office
BCD Semiconductor (Taiwan) Company Limited
4F, 298-1, Rui Guang Road, Nei-Hu District, Taipei,
Taiwan
Tel: +886-2-2656 2808
Fax: +886-2-2656 2806
USA Office
BCD Semiconductor Corporation
30920 Huntwood Ave. Hayward,
CA 94544, U.S.A
Tel : +1-510-324-2988
Fax: +1-510-324-2788
- IC Design Group
Advanced Analog Circuits (Shanghai) Corporation
8F, Zone B, 900, Yi Shan Road, Shanghai 200233, China
Tel: +86-21-6495 9539, Fax: +86-21-6485 9673
BCD Semiconductor Manufacturing Limited
http://www.bcdsemi.com
BCD Semiconductor Manufacturing Limited
IMPORTANT NOTICE
BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi-
cations herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any
particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use
of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or
other rights nor the rights of others.
- Wafer Fab
Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd.
800 Yi Shan Road, Shanghai 200233, China
Tel: +86-21-6485 1491, Fax: +86-21-5450 0008
MAIN SITE
REGIONAL SALES OFFICE
Shenzhen Office
Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd., Shenzhen Office
Room E, 5F, Noble Center, No.1006, 3rd Fuzhong Road, Futian District, Shenzhen,
518026, China
Tel: +86-755-8826 7951
Fax: +86-755-8826 7865
Taiwan Office
BCD Semiconductor (Taiwan) Company Limited
4F, 298-1, Rui Guang Road, Nei-Hu District, Taipei,
Taiwan
Tel: +886-2-2656 2808
Fax: +886-2-2656 2806
USA Office
BCD Semiconductor Corp.
30920 Huntwood Ave. Hayward,
CA 94544, USA
Tel : +1-510-324-2988
Fax: +1-510-324-2788
- Headquarters
BCD Semiconductor Manufacturing Limited
No. 1600, Zi Xing Road, Shanghai ZiZhu Science-based Industrial Park, 200241, China
Tel: +86-21-24162266, Fax: +86-21-24162277