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Power Analog Micoelectronics

PAM8302A Datasheet Preview

PAM8302A Datasheet

2.5W Filterless Class-D Mono Audio Amplifier

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PAM8302A
2.5W Filterless Class-D Mono Audio Amplifier
Key Features
n 2.5W Output at 10% THD with a 4Ω Load
www.datasheeat4nud.co5mV Power Supply
n Filterless, Low Quiescent Current and Low
EMI
n High Efficiency up to 88%
n Superior Low Noise
n Short Circuit Protection
n Thermal Shutdown
n Few External Components to Save Space
and Cost
n MSOP-8, SOP-8 and DFN3x3 Packages
Available
n Pb-Free Package
Applications
n PMP/MP4
n GPS
n Portable Speakers
n Walkie Talkie
n Handsfree phones/Speaker Phones
n Cellular Phones
General Description
The PAM8302A is a 2.5W class-D mono audio
amplifier. Its low THD+N feature offers high-
quality sound reproduction. The new filterless
architecture allows the device to drive speaker
directly instead of using low-pass output filters,
therefore save system cost and PCB area.
With the same number of external components,
the efficiency of the PAM8302A is much better
than that of class-AB cousins. It can optimize
battery life thus is ideal for portable applications.
The PAM8302A is available in MSOP-8, SOP-8
and DFN3x3 packages.
Typical Application
Ci
IN-
D iffe ren tial
Input
IN+
Ci
ON
OFF
1μF
6
VDD
Ri
4
IN-
8
VO-
Ri PAM8302A
3 IN+
1
/SD
VO+ 5
GND
7
Power Analog Microelectronics,Inc
www.poweranalog.com
1
09/2008 Rev 1.2




Power Analog Micoelectronics

PAM8302A Datasheet Preview

PAM8302A Datasheet

2.5W Filterless Class-D Mono Audio Amplifier

No Preview Available !

PAM8302A
2.5W Filterless Class-D Mono Audio Amplifier
Block Diagram
www.datasheet4u.com
IN+
IN-
MODULATOR
VDD
DRIVER
THERMAL
PROTECTION
VO+
VO-
SD
SHUTDOWN
INTERNAL
OSCILLATOR
SHORT
PROTECTION
GND
OSC
Pin Configuration & Marking Information
Top View
MSOP-8/SOP-8
Top View
DFN3x3
SD 1
NC 2
IN+ 3
IN- 4
8 VO-
7 GND
6 VDD
5 VO+
SD 1
NC 2
IN+ 3
IN- 4
P8302A
XXXXYW
8 VO-
7 GND
6 VDD
5 VO+
X: Internal Code
Y: Year
W: Week
Pin Number
1
2
3
4
5
6
7
8
Pin name
SD
NC
IN+
IN-
VO+
VDD
GND
VO-
Description
Shutdown terminal ,active low
No connection
Positive differential input
Negative differential input
Positive BTL output
Analog power supply
Ground
Negative BTL output
Power Analog Microelectronics,Inc
www.poweranalog.com
2
09/2008 Rev 1.2


Part Number PAM8302A
Description 2.5W Filterless Class-D Mono Audio Amplifier
Maker Power Analog Micoelectronics
Total Page 14 Pages
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