MIX3004 D类带音量控制,耳机输出音频功放.pdf

MIX3004 2X3W Class-D Amplifier with DC Volume Control and Earphone Output Description Features The MIX3004 is is a high efficiency, 3W/channel Low EMI Emission stereo class-D audio power amplifier with Output Power earphone amplifier. 64-step DC volume control - 3W / ch (V =5.0V, R =4Ω, THD+N=10%) DD L minimizes external components and allows -1.8W/ch (V =5.0V, R =8Ω, THD+N=10%) DD L speaker volume control and earphone volume Supply Voltage:2.5V to 5.5V control. It offers low THD+N, to produce THD+N high-quality sound reproduction. A Low noise, 0.02% （V =5.0V, P =1W, R =4Ω） DD O L filterless architecture eliminates the out filter, it Residual Noise required few external components for operation to 36uVrms （VDD=5.0V, Av=6dB） save the board space and cost. High Efficiency up to 90% 64-step DC Volume Control The MIX3004 features shutdown and mute Earphone Output Function controls functions. High PSRR and differential Short Circuit auto Recovery and Thermal architecture provide increased immunity to noise Protection and RF rectification. Few External Components to Save the Space and Cost The MIX3004 is available in a SSOP-24 and Applications