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Power Analog Microelectronics

PAM8002 Datasheet Preview

PAM8002 Datasheet

3W Filterless Mono Class D Audio Power Amplifier

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PAM8002
Ultra Low EMI, 3W Filterless Mono Class D
Audio Power Amplifier with Anti-saturation
Key Features
n One-side Modulation Active Emissions
Significantly Reduce EMI
n Unique Anti-saturation Technology with
Maximum Output Power Setting Reduce
Distortion and Protect Speaker to be
Damaged
n High Efficiency up to 89% with an 8Ω
Speaker
n 3W@10% THD Output with a 4Ω Load at 5V
Supply
n Maximum Output Power Adjuastable
n Minimized “Click and Pop”Noises
n Superior Low Noise without Input
n Supply Voltage from 2.5V to 5.5 V
n Short Circuit Protection
n Thermal Shutdown
n Available in Space Saving Packages:
1.45mmx1.45mm WCSP9, MSOP-8L,
Pb-Free Package
Applications
n Cellular Phones/Smart Phones
n MP4/MP3
n GPS
n Digital Photo Frame
n Electronic Dictionary
n Portable Game Machines
General Description
The PAM8002 is a 3W mono filterless class-D
amplifier with high PSRR and differential input
that reduce noise.
Features like 89% efficiency and small PCB area
make the PAM8002 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 PAM8002 features anti-saturation function
which detect output signal clip due to the over
input level and keep the output non-saturation
automatcally and the release time is selectable,
that to get the excellent sound quality and prevent
the speaker to be damaged. Additionally, the
maximum output power is adjusted by one
external resistor make the PAM8002 an flexible
choice for kinks of application.
The PAM8002 features short circuit protection
and over temperature protection.
The PAM8002 is available in tiny WCSP-9 and
MSOP-8L packages.
Typical Application Circuit
VDD
1μF
VDD
VIN
0 . 1μF
IN+
OUT+
0.1 μF
IN- PAM8002
CTRL
1 μF
CTRL
VREF
PGND
O U T-
GND
Power Analog Microelectronics, Inc
www.poweranalog.com
1
05/2010 Rev1.0




Power Analog Microelectronics

PAM8002 Datasheet Preview

PAM8002 Datasheet

3W Filterless Mono Class D Audio Power Amplifier

No Preview Available !

Block Diagram
Rin
IN+
IN- Rin
Rf
-
+
Rf
CTRL
CTRL
VREF
Bias and
Vref
PAM8002
Ultra Low EMI, 3W Filterless Mono Class D
Audio Power Amplifier with Anti-saturation
VDD
PWM
Modulator
Anti-Sat
UVLO
Gate
Drive
Gate
Drive
SC
Protect
OSC
Startup
Protection
OTP
OUT+
OUT-
AGND
PGND
Pin Configuration & Marking Information
9 Ball WCSP
Top View
9 Ball WCSP
Bottom View
IN-
C1
CTRL
C2
AGND
B1
VREF
B2
IN+
A1
VDD
A2
OUT-
C3
PGND
B3
OUT+
A3
1
2
3
IN+
A1
VDD
A2
AGND
B1
VREF
B2
OUT+
A3
PGND
B3
IN-
C1
CTRL
C2
OUT-
C3
1
2
3
CB
Marking
BF
YW
A ABC
BF: Product Code of PAM8002
Y: Year
W: Week
Power Analog Microelectronics, Inc
www.poweranalog.com
2
05/2010 Rev1.0


Part Number PAM8002
Description 3W Filterless Mono Class D Audio Power Amplifier
Maker Power Analog Microelectronics
Total Page 15 Pages
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