小信号芯片TMP8823引脚功能电压参数 (小信号采集与处理)
编辑:rootadmin
TMPACSN内部接口电路及终端信号脚号符号有信号电压/V黑笔接地电阻/KΩ红笔接地电阻/KΩ功能说明1SVIDEO4...0S端子亮度输入2MUTE..0静音输出3KEYin0...4按键矩阵输入4UPDvss接地端5RESET4...6复位脚6Xin2...2晶振输入7Xout0...2晶振输出8TEST测试脚9UPDvvd4...2+5V供电UPDvss接地脚TVAGND接地脚FBP1...8回扫脉冲输入Hout1...5行激励输出端HAFC6..4+∞行同步信号分离滤波Vsaw4...5常锯齿波滤波端Vout4...5场激励输出端Hvcc9...1行启动电源NC0...8空脚Cbin9...0B-Y信号输入Yin9...0Y信号输入端Crin9...8R-Y信号输入端VDAND接地端Cin9...8色度信号输入端V2in9...8*2信号输入端TVDVcc3...1罗辑电源端VIin2...8*输入端ABCL3...0自动亮度色度控制端AUout3...0音频信号输出端IFVcc8...3中频+9V供电端TVout3...2*信号输出端SIFout1...0伴音信号输出端EXTAUin3.外部音频信号输入端SIFin2..伴音信号输入端DCNF2..直流负反馈外接电容PIFPLL2...8PIF锁相环IFVcc4...8+5V供电脚（IF）RegFil2...0外接电容滤波端Deempha4...0SIF去加重IFAGC1...8IFAGC滤波IFGND接地端（IF）IFin..2中频信号输入IFin..2中频信号输入RFAGC1...2RIAGC输出端TVYCVCC4...8+5V供电端Monitoyout1...0监测输出BLACKDET2...5黑电平检波ChromaPLL1...0彩色锁相环IKin阴极检测电流输入端RGBVcc8....3RGB电源Rout2...8红基色信号输出Gout2...8绿基色信号输出Bout2...8蓝基色信号输出TVAGND接地端UPAGND接地脚UP*dd4...2+5V供电BAND4...0波段控制SDA4...8I2C串行数据入/出SCL4...8I2C串行数据入/出VOL2...4音量控制VT4...8调谐控制输出BAND0...1波段控制HSYNC3...2行同步脉冲输入RMTin4...0遥控信号输入power0...5电源待机控制输出
