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PDF PAM8303D Data sheet ( Hoja de datos )
| Número de pieza | PAM8303D | |
| Descripción | 3W Filterless Mono Class-D Audio Power Amplifier | |
| Fabricantes | Power Analog Micoelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de PAM8303D (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
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PAM8303D
Ultra Low EMI, 3W Filterless
Mono Class-D Audio Power Amplifier
Key Features
General Description
n Ultra Low EMI, -20dB Better Than FCC
www.datasheeCt4lua.csosm-B @ 300MHz
n High Efficiency up to 90% @1W with an 8Ω
Speaker
n Shutdown Current <1μA
n 3W@10% THD Output with a 4Ω Load at 5V
Supply
n Demanding Few External Components
n Superior Low Noise without Input
n Supply Voltage from 2.8V to 5.5 V
n Short Circuit Protection
n Thermal Shutdown
n Available in Space Saving Packages:
1.45mmx1.45mm WCSP9, MSOP-8, DFN 3x3
n Pb-Free Package
Applications
The PAM8303D is a 3W mono filterless class-D
amplifier with high PSRR and differential input
that eliminate noise and RF rectification.
Features like 90% efficiency and small PCB area
make the PAM8303D class-D amplifier ideal for
cellular handsets. The filterless architecture
requires no external output filter, fewer external
components, less PCB area and lower system
costs, and simplifies application design.
The PAM8303D features short circuit protection
and thermal shutdown.
The PAM8303D is available in 9-ball WCSP,
MSOP-8 and DFN 3x3 8-pin packages.
n Cellular Phones/Smart Phones
n MP4/MP3
n GPS
n Digital Photo Frame
n Electronic Dictionary
n Portable Game Machines
Level (dBuV/m)
80
FCC Class B
70
60
50
40
30
20
10
0
30.00 100.00
200.00
300.00
400.00 500.00 600.00 700.00
(MHz)
EMI vs Frequency
800.00
900.00 1000.00
Typical Application Circuit
Power in
to PVDD pin
1μF 1μF
10μF
to VDD pin
1μF
1μF
Ci
IN
Single-ended
Input
Ci
Ri
Ri
OFF
ON
VDD PVDD
IN-
OUT-
PAM8303D
IN+
OUT+
SD
GND
Ci
IN-
Differential
Input
Ci
IN+
ON
OFF
Ri
Ri
VDD PVDD
IN-
OUT-
PAM8303D
IN+
OUT+
SD
GND
Power Analog Microelectronics,Inc
www.poweranalog.com
1
09/2008 Rev 1.4
1 page  
PAM8303D
Ultra Low EMI, 3W Filterless
Mono Class-D Audio Power Amplifier
Electrical Characteristic
TA=25°C, V =DD 5V, Gain=2V/V, RL=L(33μH)+R+L(33μH), unless otherwise noted.
www.dSaytamshbeeotl4u.com Parameter
Test Conditions
MIM
VDD
Po
THD+N
PSRR
Supply Voltage
Output Power
Total Harmonic
Distortion Plus Noise
Power Supply Ripple
Rejection
THD+N=10%,f=1kHz, R=4Ω
THD+N=1%,f=1kHz, R=4Ω
THD+N=10%,f=1kHz, R=8Ω
THD+N=1%,f=1kHz, R=8Ω
VDD=5.0V,Po=1W,R=8Ω
VDD=3.6V,Po=0.1W,R=8Ω
VDD=3.2V,Po=0.1W,R=8Ω
VDD=5.0V,Po=0.5W,R=4Ω
VDD=3.6V,Po=0.2W,R=4Ω
VDD=3.2V,Po=0.1W,R=4Ω
VDD=3.6V, Inputs ac-grounded
with C=1μF
VDD=5.0V
VDD=3.6V
VDD=3.2V
VDD=5.0V
VDD=3.6V
VDD=3.2V
VDD=5.0V
VDD=3.6V
VDD=3.2V
VDD=5.0V
VDD=3.6V
VDD=3.2V
f=1kHz
f=1kHz
f=217Hz
f=1kHz
f=10kHz
2.8
2.85
1.65
1.20
2.50
1.15
0.85
1.65
0.75
0.55
1.3
0.55
0.40
Dyn Dynamic Range
VDD=5V, THD=1%, R=8Ω
f=1kHz
85
Vn Output Noise
Inputs ac-grounded
No A-weighting
A-weighting
Common Mode
CMRR
Rejection Ratio
VIC=100mVpp,f=1kHz
40
TYP
3.0
1.8
1.35
2.66
1.3
1
1.8
0.9
0.7
1.5
0.72
0.55
0.28
0.4
0.55
0.2
0.35
0.5
-63
-62
-52
95
50
30
MAX UNIT
5.5 V
W
W
W
W
0.35
0.45 %
0.6
0.25
0.4 %
0.55
-55
-55
dB
-40
100
μV
60
63 dB
(To Be Cont’d)
Power Analog Microelectronics,Inc
www.poweranalog.com
5
09/2008 Rev 1.4
5 Page 
PAM8303D
Ultra Low EMI, 3W Filterless
Mono Class-D Audio Power Amplifier
Typical Operating Characteristics
TA=25°C, V =DD 5V, f=1kHz, Gain=2V/V, unless otherwise noted.
www.datasheet4u.com
17. OSC Frequency
300
290 Input ac-ground
280
270
260
250
240
230
220
210
200
2.7 3.4 4.1 4.8
Supply Voltage (V)
5.5
18. Rdson vs Supply Voltage
300
280 Isw=500mA
100% duty cycle
260
240 PMOS
220
200
180
160
140 NOMS
120
100
3
3.5 4 4.5
Supply Voltage (V)
5
19. Start-up from Shutdown
Output
SD
Test Setup for Performance Testing
AP System One
Generator
PAM8303D Demo Board
Input
Load
+OUT
GND
-OUT
VDD
AP
Low Pass
Filter
AUX-0025
AP System One
Analyzer
Power Supply
Notes
1. The AP AUX-0025 low pass filter is necessary for class-D amplifier measurement with AP analyzer.
2. Two 22μH inductors are used in series with load resistor to emulate the small speaker for efficiency
measurement.
Power Analog Microelectronics,Inc
www.poweranalog.com
11
09/2008 Rev 1.4
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet PAM8303D.PDF ] | |
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