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Diodes Semiconductor Electronic Components Datasheet

PAM8603A Datasheet

ANTI-SATURATION FILTERLESS 3W CLASS-D STEREO AMPLIFIER

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A Product Line of
Diodes Incorporated
PAM8603A
ANTI-SATURATION FILTERLESS 3W CLASS-D STEREO AMPLIFIER
WITH DC VOLUME CONTROL AND HEADPHONE OUTPUT
Description
The PAM8603A is a 3W, Class-D audio amplifier with headphone
amplifier. Advanced 64-Step DC volume control minimizes external
components and allows speaker volume control and headphone
volume control. PAM unique antisaturation technology which detects
output signal clip due to the over level input signal suppress the
output signal clip automatically. Also the antisaturation function can
adapt the output clip caused by power supply voltage down with
battery. It offers low THD+N, to produce highquality sound
reproduction. The new filterless architecture allows the device to
drive the speaker directly, without low-pass output filters which will
save system cost and PCB area.
With the same numbers of external components, the efficiency of the
PAM8603A is much better than Class-AB cousins. It can extend the
battery life thus be ideal for portable applications.
The PAM8603A is available in a SSOP-24 package.
Features
3W Output at 10% THD with a 4Load and 5V Power Supply
Filterless, Low Quiescent Current and Low EMI
Low THD+N
64-Step DC Volume Control
Headphone Output Function
Unique Anti-Saturation Function
Superior Low Noise
Low Pop Noise
Efficiency Up to 90%
Short Circuit Protection
Thermal Shutdown
Few External Components to Save the Space and Cost
Pb-Free Package
Pin Assignments
Applications
LCD Monitors / TV Projectors
Notebook Computers
Portable Speakers
Portable DVD Players, Game Machines
VoIP/Speakers Phones
PAM8603A
Document number: DSxxxxx Rev. 1 - 2
1 of 16
www.diodes.com
November 2012
© Diodes Incorporated


Diodes Semiconductor Electronic Components Datasheet

PAM8603A Datasheet

ANTI-SATURATION FILTERLESS 3W CLASS-D STEREO AMPLIFIER

No Preview Available !

Typical Applications Circuit
A Product Line of
Diodes Incorporated
PAM8603A
Pin Descriptions
Pin
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Pin
Name
+OUT_L
PGNDL
PGNDL
-OUT_L
PVDDL
MUTE
VDD
IN L
EAR IN L
VDC
VOLUME
EAR OUT L
EAR OUT R
VREF
LINE/EAR
EAR IN R
INR
GND
SHDN
PVDDR
-OUT_R
PGNDR
PGNDR
+OUT_R
Function
Left Channel Positive Output
Left Channel Power GND
Left Channel Positive GND
Left Channel Negative Output
Left Channel Power Supply
Mute Control Input (active low)
Analog VDD
Left Channel Input
Left Earphone Input
Analog Reference for gain Control Section
DC Voltage Control to Set the Gain of Class-D
Left Earphone Output
Right Earphone Output
Internal Analog Reference, Connect a Bypass Capacitor from VREF to GND
Line/ Ear Detect
Right Earphone Input
Right Channel Input
Analog GND
Shutdown Control Input (active low)
Right Channel Power Supply
Right Channel Negaitive Output
Right Channel Power GND
Right Channel Power GND
Right Channel Positive Output
PAM8603A
Document number: DSxxxxx Rev. 1 - 2
2 of 16
www.diodes.com
November 2012
© Diodes Incorporated


Part Number PAM8603A
Description ANTI-SATURATION FILTERLESS 3W CLASS-D STEREO AMPLIFIER
Maker Diodes
Total Page 16 Pages
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