la76810a引腳功能 流電壓及對地電阻值
引腳序號?符號?功能?直流電壓/V?對地電阻/kΩ
有信號?無信號?紅筆接地?黑筆接地
1?AUDIO OUT?音頻信號輸出端?2.3?2.3?7.0?6.3
2?FM OUT?調頻伴音信號輸出端?2.3?2.3?6.7?6.5
3?IF AGC?中放AGC濾波電容外接端?2.6?0.2?8.0?6.86 l0
4?RF AGC?射頻(調諧器)AGC電壓輸出端?1.8?3.7?25.0?6.5
5?IF IN?圖象中頻信號輸入端?2.8?2.9?7.2?6.78
6?IF IN?圖象中頻信號輸入端?2.8?2.9?7.2?6.69
7?IF GND?中頻電路接地端?0.0?0.0?0.0?0.0
8?IF Vcc?中頻電路電源電壓輸入端，5V?5.0?5.0?0.4?
9?FM FLTER?調頻解調濾波電容外接端?2.2?2.4?8.4?6.8
10?AFT OUT?自動頻率調整電壓輸出端?2.6?4.8?7.9?4.4
11?BUS DATA?I2C總線數據輸入/輸出端?4.7?4.6?16.0?4.6
12?BUS CLK?I2C總線時鐘輸入端?4.7?4.6?16.0?4.5
13?ABL IN 自動亮度限制檢測輸入端?3.9?4.0?5.0?4.5
14?R IN 外(如OSD)R信號輸入端?0.8?0.9?7.6?6.6
15?G IN?外(如OSD)G信號輸入端?0.8?0.9?7.6?6.6
16?B IN?外(如OSD)B信號輸入端?0.8?1.5?7.6?6.6
17?BLANK IN?快速消隱脈沖控制信號輸入端?0.0?1.9?3.1?3.1
18?RGB Vcc?RGB電路9V電源電壓輸入端?7.9?7.9?0.4?0.4
19?R OUT R基色信號輸出端(至視放)?1.4?1.2?5.0?6.4
20?G OUT?G基色信號輸出端(至視放)?1.6?1.2?5.0?6.4
21?B OUT?B基色信號輸出端(至視放)?2.8?2.8?5.0?6.4
22?ID?同步信號脈沖輸出端，至CPU?0.4?0.3?8.0?5.4
23?VER OUT?場掃描激勵鋸齒波電壓輸出端?2.2?2.2?6.7?5.3
24?V RAMP?場鋸齒波形成電容外接端?2.8?2.8?7.7?6.6
25?H/BUS Vcc?行掃描/總線接口電路9V電壓輸入端?5.0?5.0?8.2?4.3
26?AFC FILTER?行同步AFC環路低通濾波器端?2.6?2.6?9.5?6.7
27?HOR OUT?行掃描激勵脈沖輸出端?0.8?0.8?7.2?6.5
28?FBP IN?行逆程脈沖輸入及沙堡脈沖輸出端?1.2?1.4?7.8?6.6
29?REF?行VCO參考電流設置外接電阻端?1.6?1.6?4.5?4.5
30?CLK OUT?4MHz時鐘信號輸出(用于SECAM)?0.9?2.5?10.0?4.8
31?1HDL Vcc?1HCCD延遲線電路5V電壓輸入端?4.5?4.5?0.4?0.4
32?CCD F1LTER?1H延遲電路濾波電容外接端?8.2?1.6?∞?4.3
33?1HDL OUT?1H延遲電路/行掃描電路/總線電路接地端?0.0?8.2?0.0?0.0
34?SECAM IN SECAM解調(B-Y)色差信號輸入端?2.5?2.5?7.4?6.7
35?SECAM IN?SECAM解調(R-Y)色差信號輸入端?2.5?2.5?7.4?6.7
36?CAFC FHER?色APC2環路濾波器外接端?3.7?3.8?7.9?7.0
37?SECAM INTERFACE?SECAM解調用fsc(4.43MHz)副載波信號輸出端?2.2?1.1?7.3?6.3
38?X-TAL?4.43MHz晶體外接端?2.8?3.2?7.8?6.9
39?CAFC1 F1LTER?色副載波恢復APC1環路濾波器端?3.5?3.4?7.5?6.66
40?SEL VIDEO OUT?選擇后視頻信號(CVBS)輸出端?1.9?2.4?1.9?1.9
41?V/C/DEF GND?視頻/色度/偏轉電路接地端?0.0?0.0?0.0?0.0
42?EXT V IN?外視頻(CVBS)信號或Y信號輸入端?2.5?2.5?8.1?6.8
43?V/C/DEF Vcc?視頻/偏轉/色度處理電路Vcc輸入端?4.9?4.9?0.4?0.43
44?INT V IN?內視頻信號(CVBS)或色度信號C輸入端?2.5?2.8?8.0?6.6
45?BLACK STRECH?黑電平擴展電平設置端?3.1?3.1?7.4?6.6
46?VIDEO OUT?視頻信號輸出端?1.7?2.9?0.6?0.60
47?VCO FILTER?中頻PLL環路低通濾波器外接端?3.6?3.3?8.2?6.7
48?VCO COIL1?中頻VCO振蕩線圈外接端1?4.3?4.3?0.9?0.9
49?VCO COIL2?中頻VCO振蕩線圈外接端2?4.3?4.3?0.9?0.9
50?PIF FILTER?圖象中頻APC濾波電容外接端?2.4?1.9?8.0?6.5
51?EXT AUDIO IN?外(AV)音頻信號輸出端?2.2?2.2?7.9?6.61
52?SIF OUT?第2伴音中頻信號輸出端?2.0?2.0?8.2?6.5
53?SUD APC?伴音解調APC環路濾波器外接端?2.3?2.2?7.8?6.5
54?SIF IN?第二伴音中頻信號輸入端?3.2?3.3?8.2?6.8