la76810a引脚功能及电压资料

la76810a引脚功能 流电压及对地电阻值
引脚序号?符号?功能?直流电压/V?对地电阻/kΩ
有信号?无信号?红笔接地?黑笔接地
1?AUDIO OUT?音频信号输出端?2.3?2.3?7.0?6.3
2?FM OUT?调频伴音信号输出端?2.3?2.3?6.7?6.5
3?IF AGC?中放AGC滤波电容外接端?2.6?0.2?8.0?6.86 l0
4?RF AGC?射频(调谐器)AGC电压输出端?1.8?3.7?25.0?6.5
5?IF IN?图象中频信号输入端?2.8?2.9?7.2?6.78
6?IF IN?图象中频信号输入端?2.8?2.9?7.2?6.69
7?IF GND?中频电路接地端?0.0?0.0?0.0?0.0
8?IF Vcc?中频电路电源电压输入端，5V?5.0?5.0?0.4?
9?FM FLTER?调频解调滤波电容外接端?2.2?2.4?8.4?6.8
10?AFT OUT?自动频率调整电压输出端?2.6?4.8?7.9?4.4
11?BUS DATA?I2C总线数据输入/输出端?4.7?4.6?16.0?4.6
12?BUS CLK?I2C总线时钟输入端?4.7?4.6?16.0?4.5
13?ABL IN 自动亮度限制检测输入端?3.9?4.0?5.0?4.5
14?R IN 外(如OSD)R信号输入端?0.8?0.9?7.6?6.6
15?G IN?外(如OSD)G信号输入端?0.8?0.9?7.6?6.6
16?B IN?外(如OSD)B信号输入端?0.8?1.5?7.6?6.6
17?BLANK IN?快速消隐脉冲控制信号输入端?0.0?1.9?3.1?3.1
18?RGB Vcc?RGB电路9V电源电压输入端?7.9?7.9?0.4?0.4
19?R OUT R基色信号输出端(至视放)?1.4?1.2?5.0?6.4
20?G OUT?G基色信号输出端(至视放)?1.6?1.2?5.0?6.4
21?B OUT?B基色信号输出端(至视放)?2.8?2.8?5.0?6.4
22?ID?同步信号脉冲输出端，至CPU?0.4?0.3?8.0?5.4
23?VER OUT?场扫描激励锯齿波电压输出端?2.2?2.2?6.7?5.3
24?V RAMP?场锯齿波形成电容外接端?2.8?2.8?7.7?6.6
25?H/BUS Vcc?行扫描/总线接口电路9V电压输入端?5.0?5.0?8.2?4.3
26?AFC FILTER?行同步AFC环路低通滤波器端?2.6?2.6?9.5?6.7
27?HOR OUT?行扫描激励脉冲输出端?0.8?0.8?7.2?6.5
28?FBP IN?行逆程脉冲输入及沙堡脉冲输出端?1.2?1.4?7.8?6.6
29?REF?行VCO参考电流设置外接电阻端?1.6?1.6?4.5?4.5
30?CLK OUT?4MHz时钟信号输出(用于SECAM)?0.9?2.5?10.0?4.8
31?1HDL Vcc?1HCCD延迟线电路5V电压输入端?4.5?4.5?0.4?0.4
32?CCD F1LTER?1H延迟电路滤波电容外接端?8.2?1.6?∞?4.3
33?1HDL OUT?1H延迟电路/行扫描电路/总线电路接地端?0.0?8.2?0.0?0.0
34?SECAM IN SECAM解调(B-Y)色差信号输入端?2.5?2.5?7.4?6.7
35?SECAM IN?SECAM解调(R-Y)色差信号输入端?2.5?2.5?7.4?6.7
36?CAFC FHER?色APC2环路滤波器外接端?3.7?3.8?7.9?7.0
37?SECAM INTERFACE?SECAM解调用fsc(4.43MHz)副载波信号输出端?2.2?1.1?7.3?6.3
38?X-TAL?4.43MHz晶体外接端?2.8?3.2?7.8?6.9
39?CAFC1 F1LTER?色副载波恢复APC1环路滤波器端?3.5?3.4?7.5?6.66
40?SEL VIDEO OUT?选择后视频信号(CVBS)输出端?1.9?2.4?1.9?1.9
41?V/C/DEF GND?视频/色度/偏转电路接地端?0.0?0.0?0.0?0.0
42?EXT V IN?外视频(CVBS)信号或Y信号输入端?2.5?2.5?8.1?6.8
43?V/C/DEF Vcc?视频/偏转/色度处理电路Vcc输入端?4.9?4.9?0.4?0.43
44?INT V IN?内视频信号(CVBS)或色度信号C输入端?2.5?2.8?8.0?6.6
45?BLACK STRECH?黑电平扩展电平设置端?3.1?3.1?7.4?6.6
46?VIDEO OUT?视频信号输出端?1.7?2.9?0.6?0.60
47?VCO FILTER?中频PLL环路低通滤波器外接端?3.6?3.3?8.2?6.7
48?VCO COIL1?中频VCO振荡线圈外接端1?4.3?4.3?0.9?0.9
49?VCO COIL2?中频VCO振荡线圈外接端2?4.3?4.3?0.9?0.9
50?PIF FILTER?图象中频APC滤波电容外接端?2.4?1.9?8.0?6.5
51?EXT AUDIO IN?外(AV)音频信号输出端?2.2?2.2?7.9?6.61
52?SIF OUT?第2伴音中频信号输出端?2.0?2.0?8.2?6.5
53?SUD APC?伴音解调APC环路滤波器外接端?2.3?2.2?7.8?6.5
54?SIF IN?第二伴音中频信号输入端?3.2?3.3?8.2?6.8