KA22686_在TCL AT2927I等机型上测定

rt56457567

KA22686是专门为电视机或音响系统的音频环绕声功能而设的单片集成电路。此IC用于控制音量、平衡、音调及三种环绕声模式。KA22686有I2C串行总线功能。序号符号功能直流电压（V）序号符号功能直流电压（V）1LIN左声道输中置4.217TRR左声道高音外接电容4.22PSN1移相滤波电容14.218BAR右声道低音4.33PSN2移相滤波电容24.219OFCR右声道移位外接电容4.34PSN1移相滤波电容14.220R OUT右声道输出4.25PSN2移相滤波电容24.221L OUT左声道输出4.26PSN1移相滤波电容14.222OFCL左声道移位外接电容4.37PSN2移相滤波电容24.223BAL左声道低音08VCC供电电压8.624TRL左声道高音4.29LPF1低通滤波器4.225GND接地010NC空脚026RL OUT 右声道缓冲输出4.311SCLI2C总线时钟线4.527LL OUT左声道缓冲输出4.312SDAI2C总线数据线4.628REOUT后置输出4.313VSS供电电压029H.OUT低音信号输出4.314MODE模式选择430MNF反馈515VOL C声音控制3.731VOLAS偏置电压4.316BALC中置声道平衡4.432R I右声道4.3