Amplifier Board 2x3W Audio Module DC 5V PAM8403

$18 $33.48
PAM8403 is an Ampli­fi­er Board which can be pow­ered using sim­ple 5V input and could dri­ve two 3W 3W stereo speak­ers. It is an excel­lent choice, who wants a Class‑D stereo audio ampli­fi­er in small board space. This Ampli­fi­er allows the user to achieve high-qual­i­ty audio repro­duc­tion from a stereo input. Addi­tion­al­ly, it has a spe­cial fea­ture that is, it can dri­ve speak­ers direct­ly from its out­put.Pin Description of PAM8403 Amplifier Board Pin NameDescrip­tionLAudio Jack (TRS-Tip) Left Chan­nel InputGndAudio Jack (TRS-Sleeve) Ground Chan­nel InputRAudio Jack (TRS-Ring) Right Chan­nel Input5v( )5v DC Pow­er VDD5v(-)5v DC Pow­er GNDL( )Left Chan­nel Pos­i­tive Out­putL(-)Left Chan­nel Neg­a­tive Out­putR( )Right Chan­nel Pos­i­tive Out­putR(-)Right Chan­nel Neg­a­tive Out­putFeatures of PAM8403 Amplifier BoardOper­at­ing Volt­age: Wide pow­er sup­ply ranges from 2.5V to 5.5V DCDual-chan­nel stereo with high out­put pow­er (3W 3W Out­put at 10% THD with a 4Ω Load @5v DC)Max Gain 24 dB.Fil­ter­less archi­tec­tureLow Qui­es­cent Cur­rent and Low EMIOper­at­ing Tem­per­a­ture: ‑40 to 85°CShort Cir­cuit Pro­tec­tionTher­mal Shut­downSupe­ri­or Low NoiseEffi­cien­cy up to 90%Dimen­sions (LxWxH) in cm 2.1 x 1.8 x .3PAM8403 Amplifier BoardThe main pow­er Ampli­fi­er IC is the PAM8403, as you can see, the below image oth­er than the IC, the mod­ule con­sists of a few com­po­nents like capac­i­tors and resis­tors.The PAM8403 ampli­fi­er board is a dual-chan­nel (stereo) ampli­fi­er that pro­duces 6W (3W 3W) out­put. As any major ampli­fi­er sys­tem needs to have short cir­cuit pro­tec­tion, PAM8403 has inbuilt short cir­cuit pro­tec­tion that is essen­tial for trou­ble-free oper­a­tions. PAM8403 Ampli­fi­er IC itself does not require any kind of heat sink, so this will be a per­fect choice for cus­tom speak­er projects. It can direct­ly dri­ve 4Ω or 8Ω speak­ers. It is manda­to­ry to use a prop­er speak­er with not more than a 3W out­put rat­ing.As this is a stereo ampli­fi­er board, the input sec­tion has two input L (Left) and R (Right) with a com­mon ground in between them. Use any kind of audio input that needs to be ampli­fied and it will pro­duce 3W 3W audio out­put.This ampli­fi­er mod­ule pro­vides a max­i­mum gain of 24 dB with 10% THD at 5V DC input and 4 Ohms load out­put. It does not require heatsink which also saves addi­tion­al board space. Irre­spec­tive of the heatsink, it could also pro­vide ther­mal pro­tec­tion which is anoth­er essen­tial fea­ture for such a small wattage ampli­fi­er mod­ule. PAM8403 Amplifier Board Interfacing DiagramCir­cuit dia­gram for inter­fac­ing with two 3W speak­ers with the PAM8403 Ampli­fi­er Board is giv­en below. The PAM8403 Ampli­fi­er Board can be pow­ered using any volt­age rang­ing from 2.5V to 5V DC. But it is rec­om­mend­ed to use 5V input for max­i­mum out­put per­for­mance.Applications of PAM8403 Amplifier BoardSpeak­er out­put in LCD Mon­i­tors / TV Pro­jec­torsSpeak­er out­put ampli­fi­er in Note­book Com­put­ersCan be used for Portable Speak­ers, Portable DVD Play­ers, Game MachinesAny pos­si­ble ampli­fi­er-based project where small space and 5V out­put is avail­able.
General Module

General Module