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PDF AA4006 Data sheet ( Hoja de datos )
| Número de pieza | AA4006 | |
| Descripción | 2.7W stereo audio power Amplifier | |
| Fabricantes | BCD | |
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Data Sheet
2.7W Stereo Audio Power Amplifier with 4 Selectable Gain Setups and Input MUX AA4006
General Description
Features
The AA4006 is a Class AB stereo audio power ampli-
fier with headphone driver, which can deliver 2.7W
into 3Ω speakers with 5.0V power supply and THD+N
less than 10%. It is designed specially for notebook PC
and portable media player applications.
The AA4006 features stereo full differential input or 2
sets of stereo single-ended audio input. There are 4 dif-
ferent gain settings at BTL mode -6dB, 10dB, 15.6dB
and 21.6dB, changed by setting GAIN0, GAIN1 pins.
At SE mode, the gain is fixed 4.1dB.
The AA4006 can amplify square waveform beep input
signal from BEEP_IN pin and its' output can always
reach BTL terminal, masking all other audio inputs
regardless of whether the chip is in shutdown, SE or
BTL mode.
The AA4006 is available in TSSOP-24 (EDP) package
.
· Output Power, THD+N=10%:
110mW at SE mode for 32Ω Headphone
220mW at SE mode for 16Ω Headphone
1.5W at BTL mode for 8Ω Speaker
2.3W at BTL mode for 4Ω Speaker
2.7W at BTL mode for 3Ω Speaker
· Supply Voltage Range: 4.5V to 5.5V
· 4 Selectable Internal Fixed Gain Setups
· Stereo 2:1 Input Multiplexer
· Stereo Full Differential Input
· PC Beep Input
· Low Power Consumption at Shutdown mode
150µA Typical
· Excellent Click/Pop Noise Suppression
· Thermal Shutdown Protection
Applications
· Notebook PC
· Portable Media Player
Aug. 2008 Rev. 1. 3
TSSOP-24 (EDP)
Figure 1. Packages Type of AA4006
BCD Semiconductor Manufacturing Limited
1
1 page  
Data Sheet
2.7W Stereo Audio Power Amplifier with 4 Selectable Gain Setups and Input MUX AA4006
Absolute Maximum Ratings (Note 1)
Parameter
Supply Voltage
Input Voltage
Power Dissipation
Package Thermal Resistance (Note 2)
Operating Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10 sec)
ESD (Human Body Model)
ESD (Machine Model)
Symbol
VDD
VIN
PD
θ JA
TJ
TSTG
TLEAD
Value
6
-0.3 to VDD + 0.3
Internally limited
65
150
-65 to 150
260
2000
200
Unit
V
V
oC/W
oC
oC
oC
V
V
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 100mm2 (4mm x 25mm) copper (top side solder mask) of 1oz. on PCB with 16 x 0.5mm vias.
Recommended Operating Conditions
Parameter
Supply Voltage
Operating Ambient Temperature
Symbol
VDD
TA
Min
4.5
-40
Max
5.5
85
Unit
V
oC
Electrical Characteristics
PVDD=VDD=5.0V, Gain = 6dB @ BTL mode, 4.1dB @ SE mode, TA=25oC, f=1 kHz, 20 kHz Low pass filter,
for SE mode, HP_SENSE=5.0V, for BTL mode, HP_SENSE=0V, unless otherwise specified.
Parameter
Quiescent Current
Shutdown Current
HP_SENSE, HP_LINE
High Logic Level GAIN0, GAIN1
Symbol
Conditions
IDD
SE mode, VIN=0, IO=0
BTL mode, VIN=0, IO=0
ISD VSHUTDOWN=0V
VIH
Min Typ Max Unit
3.5 7
mA
6.5 12
150 300 µA
4.0 V
3.0 V
Aug. 2008 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
5
5 Page 
Data Sheet
2.7W Stereo Audio Power Amplifier with 4 Selectable Gain Setups and Input MUX AA4006
Typical Performance Characteristics (Continued)
10
BTL
Mode,
R
=4
L
Ω
f=1kHz, 20kHz LPF
1
0.1
0.01
10m
VDD=5.0V
VDD=5.5V
100m
Output Power (W )
1
3
Figure 19. THD+N vs. Output Power
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
20
VDD=5.0V, SE Mode
Cb=1.0µF, RL=32Ω
VRIPPLE=0.2VRMS
Input AC Ground
100 1k
Frequency (Hz)
10k 20k
Figure 20. PSRR vs. Frequency
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
20
VDD=5.0V, BTL Mode
Cb=1.0µF, RL=8Ω
V =0.2V
RIPPLE
RMS
Input AC Ground
100 1k
Frequency (Hz)
10k 20k
Figure 21. PSRR vs. Frequency
0
VDD=5.0V, SE Mode
-20 PO=75mW, RL=32Ω
-40
-60
-80 Left -> Right
-100
-120 Right -> Left
-140
20
100 1k
Frequency (Hz)
10k 20k
Figure 22. THD+N vs. Frequency
Aug. 2008 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
11
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