Part number:1 Voltage:5 Volts Plug profile:Surface Mount Description:It is a PAM8406 digital power amplifier board.It can be connected to an external power amplifier type selection function,can be externally switched off,and can be externally mute.Feature: 1.Its conversion efficiency is high. 2.Its total harmonic distortion and noise are small. 3.It has low quiescent current. 4.It has noise suppression. 5.It supports power input reverse protection,short circuit protection,and overheat protection.Parameter: 1.Product Name:PAM8406 Digital Power Amplifier Board 2.Supply Voltage:DC 5V 3.Output Power:5W 2ohm 5V\3W 4ohm 5V\1.8W 8ohm 5V 4.Conversion Efficiency:90% 5.Work Temperature:-25~85 6.Work Humidity:5%~95%RH 7.Size:55*50*15mmAdditional Features: 1.External power amplifier type selection function (MODE:high level class D,low level class AB,default high level) 2.External shutdown (SD:chip shutdown when low level,default high level) 3.External mute (MUTE:low level mute,default high level)Package list :1 x PAM8406 Digital Power Amplifier BoardNotes: 1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures.2. Please allow 1-2cm slight dimension difference due to different manual measurement. About this item It Is A PAM8406 Digital Power Amplifier Board.It Can Be Connected to An External Power Amplifier Type Selection Function,can Be Externally Switched Off,and Can Be Externally Mute. Its Total Harmonic Distortion and Noise Are Small.Its Conversion Efficiency Is High.It Has Low Quiescent Current. It Has Noise Suppression.It Supports Power Input Reverse Protection,short Circuit Protection,and Overheat Protection. Additional Features: External Power Amplifier Type Selection Function (MODE:high Level Class D,low Level Class AB,default High Level). External Shutdown (SD:chip Shutdown When Low Level,default High Level). External Mute (MUTE:low Level Mute,default High Level) SHOP WITH CONFIDENCE: To Provide You With the Highest Quality Service, If You Have Any Question, Please Feel Free to Contact Us.We Will Provide After-sales Service Until You Are Satisfied. It Is A PAM8406 Digital Power Amplifier Board.It Can Be Connected to An External Power Amplifier Type Selection Function,can Be Externally Switched Off,and Can Be Externally Mute. Its Total Harmonic Distortion and Noise Are Small.Its Conversion Efficiency Is High.It Has Low Quiescent Current. It Has Noise Suppression.It Supports Power Input Reverse Protection,short Circuit Protection,and Overheat Protection. Additional Features: External Power Amplifier Type Selection Function (MODE:high Level Class D,low Level Class AB,default High Level). External Shutdown (SD:chip Shutdown When Low Level,default High Level). External Mute (MUTE:low Level Mute,default High Level) SHOP WITH CONFIDENCE: To Provide You With the Highest Quality Service, If You Have Any Question, Please Feel Free to Contact Us.We Will Provide After-sales Service Until You Are Satisfied.