Content：

2W electronic toys Headset Amplifier headphoen amplifier circuit board

1. Introduce

 

SL-A31 is the new design of headset amplifier, high performance, lower distortion. it is new product for using HWD4863MTE  IC, connection is very simple.

 

2. Application

 

·         Headset

·         Digital product

·         Computer and laptop

·         Portable product

·         Wireless product

 

3. Feature

 

·         Working Voltage: 2.5V~5.0V

·         Output Power: 2*2.2W (THD+N=1%,f=1kHz,RL=4ohm)

·         Output Power: 2*340mW (THD+N=1%,f=1kHz,RL=8ohm)

·         Output Power: 2*85mW(THD+N=0.5%,f=1kHz,RL=32ohm)

·         Low distortion

·         Shutdown current: 0.7uA

·         THD+N: 0.2%(AV=−1,PO=75mW,20Hz≤f≤20kHz,RL=32ohm)

·         SNR: 95dB(VDD=5V,PO=340mW,RL=8ohm)

·         “Click and pop” suppression circuitry

·         Stereo headphone amplifier mode

·         Unity-gain stable

·         Thermal shutdown protection circuitry

·         Components use high quality parts

·         PCB material is FR4, thickness 0.8MM

·         PCB size is very small, the dimension is 17.5mm*14mm