AA4003 Class stereo Audio Power Amplifier which deliver 2.0W into spea

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AA4003 Class stereo Audio Power Amplifier which deliver 2.0W into spea

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Data Sheet STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN General Description
AA4003 Class stereo Audio Power Amplifier which deliver 2.0W into speakers with limitation THD+N less than chip designed specially Portable player, Portable Media Player, monitor Digital Photo Frame applications. AA4003 available package SOIC-16 TSSOP-20 (EDP).
AA4003
Output Power, BTL: 2.0W/CH THD+N1%) 160mW/CH (16, THD+N1%) Supply Voltage Range: 2.7V 5.5V External Feedback Loop Flexible Gain Set-up Power Consumption Shutdown Mode 0.7µA Typical Mode Switchable Optimized Click/POP Noise Suppression Thermal Shutdown Protection
Applications
Portable Player Portable Media Player Monitor Digital Photo Frame
SOIC-16
TSSOP-20 (EDP)
Figure Packages Type AA4003
Oct. 2007 Rev.
Semiconductor Manufacturing Limited
Data Sheet STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN Configuration
Package (TSSOP-20 (EDP))
AA4003
SHUTDOWN OUTL+ OUTLLINGND LIN+ PGND PGND
HP-SENSE OUTR+ OUTRRINBYPASS RIN+ PGND PGND
Package (SOIC-16)
SHUTDOWN OUTL+ OUTLLINGND LIN+
HP-SENSE OUTR+ OUTRRINBYPASS RIN+
Figure Configurations AA4003 (Top View)
Oct. 2007 Rev.
Semiconductor Manufacturing Limited
Data Sheet STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN Description
Number Package Package SHUTDOWN OUTL+ OUTLLINLIN+ PGND RIN+ BYPASS RINOUTROUTR+ HP-SENSE Shutdown mode enable pin, active High Signal ground Left channel positive output Power supply Left channel negative output Left channel negative input Left channel positive input Power ground, used thermal release Right channel positive input Internal reference voltage pin, connect 1.0µF capacitor Right channel negative input Right channel negative output Right channel positive output Mode switch pin, Mode Mode Name Function
AA4003
Oct. 2007 Rev.
Semiconductor Manufacturing Limited
Data Sheet STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN Ordering Information
AA4003 Circuit Type Package Lead Free Tape Reel Blank: Tube
AA4003
TSSOP-20 (EDP) SOIC-16
Package TSSOP-20 (EDP) SOIC-16
Temperature Range
Part Number AA4003G-E1 AA4003GTR-E1 AA4003M-E1 AA4003MTR-E1
Marking AA4003G-E1 AA4003G-E1 AA4003M-E1 AA4003M-E1
Packing Type Tube Tape Reel Tube Tape Reel
Semiconductor's Pb-free products, designated with "E1" suffix part number, RoHS compliant.
Oct. 2007 Rev.
Semiconductor Manufacturing Limited
Data Sheet STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN Absolute Maximum Ratings (Note
Parameter Supply Voltage Input Voltage Power Dissipation Package Thermal Resistance Operating Junction Temperature Storage Temperature Range Lead Temperature 1.6mm from Case Seconds (Human Body Model) (Machine Model) Symbol Package TSTG TLEAD 2000 (Note
AA4003
Value -0.3 Internally limited Package
Unit
oC/W
Note Stresses greater than those listed under "Absolute Maximum Ratings" cause permanent damage device. These stress ratings only, functional operation device these other conditions beyond those indicated operation implied. Exposure "Absolute Maximum Ratings" extended periods affect device reliability. Note Chip soldered 200mm2 copper (top side solder mask) 1oz. with 0.5mm vias.
Recommended Operating Conditions
Parameter
Supply Voltage Operating Ambient Temperature
Symbol
Unit
Oct. 2007 Rev.
Semiconductor Manufacturing Limited
Data Sheet STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN Electrical Characteristics
(VDD=5V, TA=25oC, CI=1µF, COUT=220µF RI=RF=20k unless otherwise specified. Mode, HP_SENSE=5V, Mode, HP_SENSE=0V. Parameter Quiescent Current Shutdown Current HP_SENSE LOGIC Symbol Conditions Mode, VIN=0, IO=0 Mode, VIN=0, IO=0 VSHUTDOWN=5V
AA4003
Unit
SHUTDOWN LOGIC Thermal Shutdown Temperature Hysteresis Temperature Window Mode
THD+N=1%, RL=32 Output Power THD+N=10%, RL=32 THD+N=1%, RL=16 THD+N=10%, RL=16 Total Harmonic Distortion Noise Signal Noise Ratio Crosstalk Power Supply Rejection Ratio Mode Output Offset Voltage VIN=0V, load THD+N=1%, RL=4 Output Power THD+N=10%, RL=4 THD+N=1%, RL=8 THD+N=10%, RL=8 Total Harmonic Distortion Noise Signal Noise Ratio Crosstalk Power Supply Rejection Ratio THD+N PO=1W, RL=4, XTALK PSRR PO=1W, RL=8, PO=1W, RL=8, f=1kHz Cb=1µF, f=1KHz, VRIPPLE=0.2VRMS, RL=8 THD+N PO=75mW, RL=32, XTALK PSRR PO=75mW, RL=32, PO=75mW, RL=32, f=1kHz Cb=1µF, f=1KHz, VRIPPLE=0.2VRMS, RL=16
Oct. 2007 Rev.
Semiconductor Manufacturing Limited
Data Sheet STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN Typical Performance Characteristics AA4003
Figure Quiescent Current Supply Voltage
Figure Quiescent Current Ambient Temperature
VDD=5.0V, Mode f=1kHz, LPF=30kHz RL=16 RL=32
THD+N
THD+N
VDD=5.0V, Mode f=1kHz LPF=30kHz RL=4 RL=8
0.01
1E-3
100m
300m
0.01
100m
Output Power
Output Power
Figure THD+N Output Power Mode
Figure THD+N Output Power Mode
Oct. 2007 Rev.
Semiconductor Manufacturing Limited
Data Sheet STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN Typical Performance Characteristics AA4003
VDD=5.0V, Mode COUT=1000µF, PO=150mW RL=16, LPF=80kHz THD+N THD+N
VDD=5.0V, Mode PO=1.5W, RL=4 LPF=80kHz
0.01
0.01
Frequency (Hz)
Frequency (Hz)
Figure THD+N Output Power Mode
Figure THD+N Output Power Mode
Mode, VDD=5.0V PO=75mW, RL=32 LPF=80kHz, COUT=1000µF THD+N THD+N
Mode, VDD=5.0V PO=1W, RL=8 LPF=80kHz
0.01
0.01
Frequency (Hz)
Frequency (Hz)
Figure THD+N Frequency Mode
Figure THD+N Frequency Mode
Oct. 2007 Rev.
Semiconductor Manufacturing Limited
Data Sheet STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN Typical Performance Characteristics (Continued) AA4003
VDD=5.0V, Mode f=1kHz, LPF=30kHz THD+N=10% THD+N=1%
VDD=5.0V, Mode f=1kHz, LPF=30kHz THD+N=10% THD+N=1%
Output Power (mW)
Output Power
10.0
15.0
20.0
25.0
30.0
35.0
Resistor Load (ohm)
Resistor Load
Figure Output Power Resistor Load Mode
Figure Output Power Resistor Load Mode
Mode, RL=16 f=1kHz, LPF=30kHz THD+N=10% THD+N=1%
Mode, RL=4 f=1kHz, LPF=30kHz THD+N=10% THD+N=1%
Output Power (mW)
Output Power (mW)
Supply Voltage
Supply Voltage
Figure Output Power Supply Voltage Mode
Figure Output Power Supply Voltage Mode
Oct. 2007 Rev.
Semiconductor Manufacturing Limited
Data Sheet STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN Typical Performance Characteristics (Continued)
AA4003
PSRR (dB)
PSRR (dB)
VDD=5.0V, Mode RL=32,Cb=1.0µF VRIPPLE=0.2Vrms
VDD=5.0V, Mode RL=8, Cb=1.0µF VRIPPLE=0.2Vrms
Frequency (Hz)
Frequency (Hz)
Figure PSRR Frequency Mode
Figure PSRR Frequency Mode
1000
VDD=5.0V
Gain
-120
Start-up Time (ms)
-160
Phase
-200
-240
Mode, VDD=5.0V RF=RI=20k, COUT=1000µF
-280 100k
Bypass Capacitor (µF)
Frequency (Hz)
Figure Start-up Time Bypass Capacitor
Figure Closed Loop Frequency Response
Oct. 2007 Rev.
Semiconductor Manufacturing Limited
Phase (deg)
Gain (dB)
Data Sheet STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN Application Information
COUT 220µF Left Out20k Left Out+ 1.5k Main Speak
AA4003
SE/BTL Mode, HP_SENSE
AA4003 operate under types output configuration, (Bridged-Tied-Load) mode (Single-Ended) mode, determined HP_SENSE pin's logic level. (Here discussion about left channel only, equally applies right channel.)
AMP1L
Headphone Speak
AMP2L
100k 100k HP_SENSE= High Level
Left Out20k Left Out+
COUT 220µF 1.5k Main Speak
AMP1L
AMP2L
100k 100k HP_SENSE= Level SLEEVE HEADPHONE JACK
Figure Output Configuration Left Channel Mode When HP_SENSE held which sets chip mode, AMP2L unit turned AMP2L fixed unity gain internally, signal OUT+ degree phase shifted from OUT-. Because component (Output Bias voltage, approx VDD) between OUT+ OUT- canceled, there necessity block capacitors main speak. mode, output voltage swing across main speaker about times that mode, there times output power compared mode with same load input. (see Figure applying high level HP_SENSE which sets chip mode, AMP2L unit high impedance state. There current loop between OUT+ OUT-, main speak naturally disabled without hardware change. output audio signal rides bias voltage OUT- (Output Bias voltage, approx VDD) capacitor COUT block bias couple signal headphone speak. (See Figure recommended connect HP_SENSE headphone jack switch illustrated Figure Oct. 2007 Rev.
Figure Output Configuration Left Channel Mode When headphone plug inserted, voltage HP_SENSE determined voltage divider formed RPD. given resistor's value Figure R1=100k, RPD=1.5k, voltage HP_SENSE about 74mV. signal equals output amplitude OUT- through COUT, signal HP_SENSE node 74mV plus signal. maximum peak-to-peak voltage OUT- greater than (supply voltage 5.0V), positive maximum voltage HP_SENSE node will greater than 2.5V+75mV2.575V, which less than HP_SENSE input high level minimum value (4.0V). That means chip mode there risk operation mode switch between BTL. When headphone plug inserted, disconnected from voltage HP_SENSE pulled sets chip mode. HP_SENSE also connected port control mode switch through MCU. necessary note that AA4003 still drive headphone even mode because OUT- always active whatever chip mode. CIN, COUT, (Power Supply) Selection input stages AA4003, input capacitors used accommodate different level between input source AA4003 bias voltage (about 2.31V). Input capacitors input resistors form first order High Pass Filter, which determines lower corner frequency according classic equation below, Semiconductor Manufacturing Limited
Data Sheet STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN Application Information (Continued) AA4003
Example: VDD=5V, RL=8, configuration, Desired output power PO=1.0W (each channel), THD+N Input signal, VIN=1.0VRMS from converter. Step check chip deliver load with limitation THD+N VDD=5V. From Figure Figure AA4003 deliver load each channel. Step yes, calculate output voltage,
.(1)
Similarly, output stage mode, output capacitor (COUT), headphone load also form first order High Pass Filters, cut-off frequency determined equation
.(2) 2RHP COUT
purpose bypass capacitor (Cb) filter internal noise, reduce harmonic distortion, improve power supply rejection ratio performance. Tantalum ceramic capacitor with recommended, should placed close possible chip layout. chip will work until internal bias completely. size will also affect chip start time, which approx linearly proportional value bypass capacitor. AA4003, here various start-up times several typical capacitor values. (see Figure
(µF) 0.33 0.47
VOUT 2.83VRMS
pass-band gain, AV=VOUT/VIN=2.83x. Step Assuming input resistor 20k, feedback resistor=20k*1.415=28.3k. Select closest standard value 28k. Shutdown AA4003 shutdown feature reduce power consumption. apply high level shutdown pin, output amplifiers will turned off, bias circuit also disabled, maximum current drawn from less than 2.0µA. logic level will enable device. Optimizing CLICK/POP Noise AA4003 includes optimized circuits suppress CLICK/POP noise during power up/power down transition. mode AA4003 effectively reduce most common mode signal including CLICK/POP noise. mode, optimized ramp rise/fall edge BIAS significantly reduce click/pop noise charge and/or discharge output capacitor (COUT). Furthermore, increasing bypass capacitor value (Cb) slower ramp charging bypass capacitor, prolong start-up time, mask most transient noises before bias voltage completely. recommended 1.0µF capacitor with lower ESR.
Start Time (ms)
AA4003 power supply, better individual power source generated from voltage regulator split from video, digital circuit units system. power supply bypass capacitors, recommended electrolytic capacitor between 4.7µF 10µF with parallel 0.1µF ceramic capacitor which located close chip. Setup Proper Gain, Design Example closed loop gain AA4003 determined ratio feedback resistor (RF) input resistor (RI).
.(3)
Oct. 2007 Rev.
Semiconductor Manufacturing Limited
Data Sheet STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN Application Information (Continued)
Power Dissipation, Efficiency Thermal Design Consideration Class amplifiers, Formula basic equation efficiency worked configuration,
AA4003
PDBTLMAX
2VDD 1.266W 3.14
4VDD
channel, total power dissipation PDTOTAL=2* PDBTLMAX=2.53W. According formula maximum ambient temperature
TJMAX PDBTLMAX =150-50*2.53=23.5
.(4)
here output peak voltage across load. Thermal dissipation becomes major concern when delivering more output power especially mode. maximum power dissipation calculated following equation.
That say, user wants AA4003 delivery power channel load VDD=5.0V, mode, ambient temperature hold lower than 23.5oC. When junction temperature exceeds about 170oC, OTSD feature will enabled, shutdown device limit total power dissipation. There exposed thermal bottom chip provide direct thermal path from heat sink. recommended copper surface Printed Circuit Board heat sink. some matrix regular holes under chip, remove mask this area copper, make sure keep them contact well when soldering also recommended. (See Figure
PDMAX
Here
TJMAX .(5)
TJMAX
maximum
operating
junction
temperature, ambient temperature, thermal resistance from junction ambient, which 50oC/W TSSOP-20 (EDP), given datasheet. 150oC, Assuming 25oC, maximum power dissipation PDMAX about 2.5W according formula There other formula about power dissipation which determined supply voltage load resistance.
PDBTLMAX
.(6)
Recommended Layout AA4003 Using wide traces power supply reduce power losses caused parasitic resistance outputs useful help releasing heat away from chip. recommended place bypass capacitor, power supply bypass capacitors close possible chip. Figure Figure show recommended layout double layer PCB.
power dissipation calculated application larger than that package permitted, there will need assemble additional heat sink, keep ambient temperature around chip low, increase load resistance, decrease power supply voltage. Here example. Assuming VDD=5.0V, RL=4, stereo mode,
Oct. 2007 Rev.
Semiconductor Manufacturing Limited
Data Sheet STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN Application Information (Continued) AA4003
Figure Copper Holes under Part
Figure Route Silk Screens Oct. 2007 Rev. Semiconductor Manufacturing Limited
Data Sheet STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN Typical Application
AA4003
4,13
10µF
LINLIN+
OUTL5
Left
COUT 220µF 1.5k
HP-SENSE
AMP1L
100k
100k
control
OUTL+
HP-Sense circuit
AMP2L
BYPASS
Right 1.0µF
RINRIN+
OUTR12
COUT 220µF
SLEEVE
1.5k
HEADPHONE JACK
AMP1R
OUTR+
SHUTDOWN
AMP2R
2,7,15
Figure Typical Application Circuit AA4003 Package)
Oct. 2007 Rev.
Semiconductor Manufacturing Limited
Data Sheet STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN Mechanical Dimensions TSSOP-20(EDP) Unit: mm(inch) AA4003
6.400(0.252) 6.600(0.260)
4.100(0.161) 4.300(0.169) 2.900(0.114) 3.100(0.122) 4.300(0.169) 4.500(0.177)
EXPOSED
6.200(0.244) 6.600(0.260)
0.000(0.000) INDEX0.750(0.030)Dp 0.850(0.033) 0.100(0.004)
0.650(0.026)TYP
0.100(0.004) 0.190(0.007) 4-10° BOTTOM 0.200(0.008)MIN R0.090(0.004)MIN
0.900(0.035) 1.050(0.041) 0.340(0.013) 0.540(0.021)
1.200(0.047) 0.050(0.002) R0.090(0.004)MIN 0.150(0.006) 0.250(0.010)TYP
0.200(0.008) 0.280(0.011)
0.450(0.018) 0.750(0.030)
1.000(0.039)
Oct. 2007 Rev.
Semiconductor Manufacturing Limited
Data Sheet STEREO AUDIO POWER AMPLIFIER WITH SHUTDOWN Mechanical Dimensions (Continued) SOIC-16 Unit: mm(inch) AA4003
1.300(0.051)
1.000(0.039)
1.650(0.065)
0.700(0.028)
0.406(0.016) 20:1 0.500(0.020) 0.600(0.024)
10.000(0.394)
2.000(0.079) Depth 0.060(0.002) 0.100(0.004)
0.250(0.010)
R0.200(0.008) R0.200(0.008)
1.270(0.050)
6.040(0.238)
0.203(0.008)
0.150(0.006) 0.250(0.010)
0.250(0.010) 0.200(0.008)MIN
50:1
3.940(0.155)
20:1 0.200(0.008) 1.000(0.039)
Depth 0.200(0.008)
1.000(0.039)
Oct. 2007 Rev.
Semiconductor Manufacturing Limited
Semiconductor Manufacturing Limited
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IMPORTANT NOTICE Semiconductor Manufacturing Limited reserves right make changes without further notice products specifications herein. Semiconductor Manufacturing Limited does assume responsibility products particular purpose, does Semiconductor Manufacturing Limited assume liability arising application products circuits. Semiconductor Manufacturing Limited does convey license under patent rights other rights rights others.
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AA4003 Class stereo Audio Power Amplifier which deliver 2.0W into spea

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