NOT RECOMMENDED FOR NEW DESIGN USE PAM8003 PAM8004 FILTERLESS 3W CLASS-D STEREO AUDIO AMPLIFIER Description Pin Assignments The PAM8004 is a 3Wm Class-D audio amplifier. It offers low THD+N, allowing it to achieve high quality sound reproduction. The new filterless architecture allows the device to drive the speaker directly, requiring no low-pass output filters, in order to save system cost and PCB area. With the same numbers of external components, the efficiency of the PAM8004 is much better than that of Class-AB cousins. It can extend the battery life, ideal for portable applications The PAM8004 is available in SOP-16L package. Features 3W Output at 10% THD with a 3 Load and 5V Power Supply 2.5W Output at 10% THD with a 4 Load and 5V Power Supply Applications Filterless, Low Quiescent Current and Low EMI Portable Speakers Low THD+N LCD Monitors / TV Superior Low Noise Notebook Computers Short Circuit Protection Portable DVD Players, Game Machines Thermal Shutdown Few External Components to Save the Space and Cost Pb-Free Package For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. PAM8004 Pin Descriptions Pin Pin Function Number Name Left Channel Power Supply 1 PVDDL Left Channel Negative Output 2 -OUTL 3 PGNDL Left Channel Power GND 4 +OUTL Left Channel Positive Output 5 SHDN Shutdown Control Input (active low) 6 VREF Internal Analog Reference, Connect a Bypass Capacitor from VREF to GND Left Channel Input 7 INL Analog Ground 8 GND Analog Power Supply 9 VDD 10 INR Right Channel Input 11 NC Not Connected (Suggest Connect to GND) 12 NC Not Connected 13 +OUTR Right Channel Positive Output 14 PGNDR Right Channel Power GND Right Channel Negative Output 15 -OUTR Right Channel Power Supply 16 PVDDR Functional Block Diagram 2 of 11 PAM8004 September 2020 Diodes Incorporated www.diodes.com Document number: DS36422 Rev. 2 - 3