MIX3005 D类带音量控制,耳机输出音频功放.pdf

MIX3005 2X3W Class-D Amplifier with DC Volume Control and Earphone Output Description Features The MIX3005 is is a high efficiency, 3W/channel Output Power stereo class-D audio power amplifier with - 3W/ch into 4Ω at 5V earphone amplifier. 64-step DC volume control - 1.7W/ch into 8Ω at 5V minimizes external components and allows Supply Voltage:2.5V to 5.5V speaker volume control and earphone volume THD+N control. It offers low THD+N, to produce 0.03% （V =5.0V, P =1W, R =4Ω） DD O L high-quality sound reproduction. A Low noise, Residual Noise filterless architecture eliminates the out filter, it 80uVrms （VDD=5.0V, Av=6dB） required few external components for operation to High Efficiency up to 90% save the board space and cost. 64-step DC Volume Control The MIX3005 features shutdown and mute Earphone Output Function controls functions. High PSRR and differential Short Circuit Protection architecture provide increased immunity to noise Over Temperature Protection and RF rectification. The MIX3005 is available in SSOP-24 PB-Free Applications package. Portable DVD Players . Notebook PC USB Speakers, Portable Speaker LCD TV/LCD Monitor   Typical Application Pin Configuration