TDA9370引脚功能的电压参数资料脚号符号1STANDBY2SCL3SDA4VT5SYSTEM671011121314KEY0KEY1VOLVSSBAND1BAND2VSSASECPLLVP215DECDIG16PH2LF17PH1LF18GND319DECBG20AVL21VDRB22VDRA23IF124IF2有信号电黑笔接地红笔接地压/V/KΩ/KΩ功能说明3.6716待机控制时钟线输3.66.528入/输出数据线输3.26.628入/输出调谐器电2.68.128压输出P/N制式3.68.1+∞控制按键矩阵3.47.821.8端口按键矩阵3.47.821.8端口0.57.514.5音量控制000地波段控制4.96.81波段控制06.822.52000地2.31015.5环路滤波7.82.42.4+8V供电外接电容57.513.5滤波端相位2检2.71015.8波相位1检2.71016.4波000地外接电容4913滤波端音频L输01015.8出场激励输0.81.81.8出B场激励输0.81.81.8出A中频信号1.91014.2输入1中频信号1.91014.2输入225IREF3.810.214.526VSC27RF-AGCAUDEEM/S28IF1DECSDDEM29/SIF230GNDSNDPLL/31SIF AGC32AVL/REF33H-OUT34FBISOAUDEXT/Q35SSQ363738394041EHTOPLLIFIFVO/SVOVP1CVBSNTGND12.3.12.40109.59.810.1015.811.815.415.80200.50.53.21.62.43.27.83.50109.81.49.510.58.110102.310015.815.41.41416.142CVBS/Y43CHROMAAUDIOUT44/AMOUT4748INSSW2R2/VING2/YINB2/UIN3.213.41.82.42.42.42.461010.210.57.510.110.110.19..813.81611.82.316.10地视频/亮度信号输16入色度信号15.5输入16.5音频输出输入开关7.8控制216.5R2/V输入16.5G2/Y输入16.5B2/U输入自动亮度15.5控制输入黑电平控15制场锯齿波形成时间常数设定场锯齿波形成时间常数设定高放AGC控制伴音1输入出伴音2输出地音频锁相环/伴音AGC控制音频L/R输入端口行激励输出行脉冲输入外部音频输入极高压检测端口IF锁相环视频输出+8V供电49BCL/IN50Blanking51Rout52Gout53BoutVddA55VPE56Vddc57OSCGND58XTAL in59XTAL out60RESET61Vddp62AV163AV2IR in2.62.82.83.503.500.81.803.65.15.14.41.41.41.45.105.106.86.86.85.27.47.48.1+∞1.41.41.410.2010.203021.522.5101212红基色输出绿基色输出蓝基色输出+3.3V供电地+3.3V供电地12MHz振荡输入12MHz振荡输出复位端口+3.3V供电遥控信号输入
