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作者:佚名 来源:本站整理 发布时间:2011-07-07 21:33:52
脚号符号功能说明电压(V)在路电阻(KΩ)黑笔地红笔地1STANDBY待机控制3.67.O162SCL时钟线输入/输出3.66.5283SDA数据线输入/输出3.26.6284VT调谐器电压输出2.68.1285SYSTEMP/N制式控制3.68.1+∞6KEYO按键矩阵端口3.47.821.87KEYl按键矩阵端口3.47821.88VoL音量控制O.57.514.59VSS地O0O10BANDl波段控制14.96.821.511BAND2波段控制2O6.822.512VSSA地0O013SECPLL环路滤波2.31015.514VP2+8V供电7.82.42.415DECDIG外接电容滤波端5.O7.513.516PH2LF相位2检波2.71015.817PHlLF相位1检波2.71016.418GND3地00O19DECBG外接电容滤波端4.O9.01320AVL音频L输出01015.821VDRB场激励输出BO.81.81.822VDRA场激励输出AO.81.81.823IFl中频信号输入11.91014.224IF2中频信号输入21.91014.225IREF场锯齿波时间常数设定3.810.214.526VSC场锯齿波时间常数设定2.61015.827RF—AGC高放AGC控制4.O9.511.828AUDEEM/SIFl伴音1输出3.19.815.429DECSDDEM/SIF2伴音2输出2.410.115.830GND地O0031SNDPLI/SlFAGC音频锁相环/伴音AGC控制2.01015.832AVL/REF音频L/R输入端口O9.815.433H—OUT行激励输出O.51.41.434FBISO行脉冲输入0.59.51435AUDEXT/QSSQ外部音频输入3.210.516.136EHTo极高压检测端口1.68113.837PLLIFIF锁相环2.4101638IFVo/SVo视频输出3.21011.839VPl+8V供电7.82.32.340CVBSNT复合全电视信号入3.51016.141GNDl地O0O42CVBS/Y复合视频/亮度3.2101643CHROMA色度信号输入1.O10.215.544AUDIOUT/AOUT音频输出3.410.516.545INSSW2输入开关控制1.8757.846R2/VINR2/V输入2.410.116.547G2/YING2/Y输入2.410.116.548B2/UINB2/U输入2.410.116.549BCL/IN自动亮度控制输入2.49.815.550Blanking黑电平控制6.09.81551Rout红基色输出2.61.41.452Gout绿基色输出2.81.41.453Bout蓝基色输出2.81.41.454VddA+3.3V供电3.55.110.255VPE地0O056Vddc+3.3V供电3.55.110.257OSCGND地0O058XTALin12MHz振荡输入0.86.83059XTALout12MHz振荡输出1.86.821.560RESET复位端口O6.822.561Vddp+3.3V供电3.6521062AVlAVl/TV/S—V切换控制5.17.41263AV2AV2/TV/S—V切换控制5.17.41264IRin遥控信号输入4.48.1+oo