FILTERLESS 3W CLASS-D STEREO AUDIO AMPLIFIER
Description
A Product Line of Diodes Incorporated
PAM8007
FILTERLESS 3W CLASS-D STEREO AUDIO AMPLIFIER with DC VOLUME CONTROL and HEADPHONE OUTPUT
Description
The PAM8007 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.
It offers low THD+N, to produce high-quality sound reproduction.
The new filterless architecture allows the device to drive the speaker directly, without low-pass output filters which will save 30% system cost and 75% PCB area.
With the same numbers of external components, the efficiency of the PAM8007 is much better than class-AB cousins.
It can extend the battery life thus be ideal for portable applications.
The PAM8007 is available in a SSOP-24 and SOP-24 package.
Pin Assignments
Features
• 3W Output at 10% THD with a 4Ω Load and 5V Power Supply • Filterless, Low Quiescent Current and Low EMI • Low THD+N • 64-Step DC Volume Control • Headphone Output Function • Superior Low Noise • Low Pop Noise • Efficiency Up to 92% • Short Circuit Protection • Thermal Shutdown • Few External Components to Save the Space and Cost • Pb-Free Package
Applications
• LCD Monitors / TV Projectors • Notebook Computers • Portable Speakers • Portable DVD Players, Game Machines • VoIP/Speaker Phones
PAM8007
Document number: DSxxxxx Rev.
1 - 2
1 of 17 www.
diodes.
com
October 2012
© Diodes Incorporated
Typical Applications Circuit
A Product Line of Diodes Incorporated
PAM8007
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
INL EAR INL
VDC VOLUME EAR OUT L EAR OUT R
VREF LINE/EAR EAR LN R
INR GND SHDN PVDDR +OUT_R PGNDR PGNDR -OUT_R
Function
Left Channel Negative Output Left Channel Power GND Left Channel Power GND Left Channel Positive Output Left Channel Power Supply Mute Control Input (active low) Analog VDD Left Channel Input Left Earphone Inpu...
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