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PAM8603M Schematic ( PDF Datasheet ) - Power Analog Micoelectronics

Teilenummer PAM8603M
Beschreibung 3W Filterless Stereo Class-D Audio Amplifier
Hersteller Power Analog Micoelectronics
Logo Power Analog Micoelectronics Logo 




Gesamt 14 Seiten
PAM8603M Datasheet, Funktion
PAM8603M
3W Filterless Stereo Class-D Audio Amplifier with DC Volume Control
Features
n 3W Output at 10% THD with a 4Ω Load and
www.datashee5tV4u.Pcoomwer Supply
n Filterless, Low Quiescent Current and Low
EMI
n Low THD+N
n 64-Step DC Volume Control from -75dB to
+24dB
n Superior Low Noise
n Efficiency up to 89%
n Short Circuit Protection
n Thermal Shutdown
n Few External Components to Save the
Space and Cost
n Pb-Free Package
Applications
n LCD Monitors/TV Projectors
n Notebook Computers
n Portable Speakers
n Portable DVD Players, Game Machines
n Cellular Phones/Speaker Phones
General Description
The PAM8603M is a 3W, sterero, class-D audio
amplifier with DC volume control. It offers low
THD+N, allowing it to produce high-quality sound
reproduction. The new filterless architecture
allows the device to drive the speaker directly,
requiring no low-pass output filters, which saves
the system cost and PCB area.
With the same numbers of external components,
the efficiency of the PAM8603M is much better
than class-AB cousins. It can extend the battery
life thus ideal for portable applications.
The PAM8603M is available in SSOP-24 and
SOP-18 packages.
Typical Application Circuit
PVDDL 10μF
1μF
PVDDL
+OU TL
PGNDL
+OUTR
-OUTL
-OUTR
0.47μF
INL INL
INR
PAM8603M
1μF
VREF
VDD
ON
SHDN
ON
MUTE
SHDN
VDC
MUTE
VOLUME
PVDDR PGNDR GND
1μF
0.47μF
INR
VDD
1μF
50kO
10μF
PVDDR
100
90
80
70
60
50
40
30
20
10
0
0
Efficiency vs Output Power
RL=4Ω
RL=8Ω
0.5 1 1.5 2 2.5
Output Pow er(W)
Radiated Emissions
3
FCC Class B Limit
Power Analog Microelectronics,Inc
www.poweranalog.com
1
10/2008 Rev 1.0






PAM8603M Datasheet, Funktion
PAM8603M
3W Filterless Stereo Class-D Audio Amplifier with DC Volume Control
Typical Operating Characteristics(TA=25°C)
www.datasheet4u.com
7. Frequency Response
+5
Gain=0dB@1kHz
+4 Cin=0.47μF,RL=8Ω
+3 V =DD 3.6V/5V
+2
+1
d
B
r +0
A -1
-2
-3
-4
-5
20
50 100 200
500 1k
2k
Hz
5k 10k 20k 30k
8.PSRR VS Frequency
+0
-10 Inputs ac-ground
V =DD 5V,100mVpp,
-20 Cin=0.47μF,RL=8Ω
-30
-40
d -50
B
-60
-70
-80
-90
-100
20
50 100 200
500 1k
Hz
2k
5k 10k
9. Crosstalk VS Frequency
-50T T T T T T T T T
-55 Gv=20dB,RL=4
-60 V =DD 5.0V,
-65 Po=0.5W
-70
-75
-80
d -85
B
-90
R to L
-95
-100
-105
-110
L to R
-115
-120
20
50 100 200
500
Hz
1k
2k
5k 10k 20k
10. Noise Floor FFT
+0
-10
Inputs ac-ground,
-20
-30 V =DD 5.0V
Cin=0.47μF,
-40
-50 RL=8Ω
-60
d
B -70
r
-80
A
-90
-100
-110
-120
-130
-140
-150
20
50 100 200
500
Hz
1k
2k
5k 10k 20k
11. Quiescent Current VS Supply Voltage
18
16 No input
14 RL=No Load
12
10
8
6
4
2
0
2.5 3 3.5 4 4.5 5 5.5
Power Supply Voltage(V)
12. Shutdown Current VS Supply Voltage
0.3
No input
0.25 No Load
0.2
0.15
0.1
0.05
0
2.5
3 3.5 4 4.5 5
Power Supply Voltage(V)
5.5
Power Analog Microelectronics,Inc
www.poweranalog.com
6
10/2008 Rev 1.0

6 Page









PAM8603M pdf, datenblatt
PAM8603M
3W Filterless Stereo Class-D Audio Amplifier with DC Volume Control
Ordering Information
PAM8603Mwww.datasheet4u.com X X X
Shipping Package (R: Tape & Reel, T: Tube)
Number of Pins (H: 24, E: 18)
Package Type (N: SSOP, D: SOP)
Part Number
PAM8603MNHR
PAM8603MDER
PAM8603MDET
Marking
PAM8603M
XXXYWWLL
PAM8603M
XXXYWWLL
PAM8603M
XXXYWWLL
Package Type
SSOP-24
SOP-18
SOP-18
MOQ/Shipping Package
2,500 Units/Tape & Reel
1,000 Units/Tape & Reel
40 Units/Tube
Power Analog Microelectronics,Inc
www.poweranalog.com
12
10/2008 Rev 1.0

12 Page





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