|
LA76818A |
双击自动滚屏 |
发布时间:2006-09-10 19:27:24 阅读:1838次 |
引脚序号 |
标号 |
功能 |
电压值(V) |
对地阻值(K?) |
|
黑笔接地 |
红笔接地 |
|
1 |
AUDIO |
伴音输出 |
2.2 |
10 |
10 |
|
2 |
FM OUT |
伴音调频解调 |
2.2 |
11 |
13 |
|
3 |
PIF AGC |
中放AGC滤波 |
2.4 |
11.8 |
13.9 |
|
4 |
RF AGC OUT |
高放AGC输出 |
2.2 |
11.2 |
32 |
|
5 |
PIF IN |
中频输入 |
2.8 |
11.2 |
12 |
|
6 |
PIF IN |
中频输入 |
2.8 |
11.2 |
12 |
|
7 |
IF GND |
中频电路地 |
0 |
0 |
0 |
|
8 |
VCC(VIF) |
图像中频供电 |
4.9 |
0.5 |
0.2 |
|
9 |
FM FIL |
调频解调滤波 |
2.1 |
12 |
14 |
|
10 |
AFT OUT |
AFT信号输出 |
2.2 |
8.5 |
13.5 |
|
11 |
BUS DATA |
总线数据线 |
4.6 |
7 |
34 |
|
12 |
BUS COLCK |
总线时钟线 |
4.6 |
6 |
34 |
|
13 |
ABL |
自动亮度限制输入 |
4 |
8.1 |
8 |
|
14 |
R IN |
字符红信号输入 |
0.025 |
11 |
12.8 |
|
15 |
G IN |
字符绿信号输入 |
0.025 |
11.5 |
12.8 |
|
16 |
B IN |
字符蓝信号输入 |
0.02 |
3.4 |
2.8 |
|
17 |
BL IN |
字符消隐信号输入 |
0 |
4 |
4.4 |
|
18 |
VCC(RGB) |
RGB电路供电 |
7.9 |
0.8 |
400 |
|
19 |
R OUT |
红信号输出 |
2.8 |
11.1 |
10 |
|
20 |
G OUT |
绿信号输出 |
2.5 |
11.1 |
10 |
|
21 |
B OUT |
蓝信号输出 |
2.6 |
11.1 |
10 |
|
22 |
SYNC |
同步信号输出 |
0.5 |
8.2 |
13 |
|
23 |
V OUT |
场激励信号输出 |
2.3 |
11 |
11.5 |
|
24 |
V RAMP ALC FIL |
场信号形成滤波 |
2.9 |
12 |
13.2 |
|
25 |
VCC(H/D) |
行场激励信号电路供电 |
5.1 |
0.8 |
0.4 |
|
26 |
AFC FIL |
AFC滤波 |
2.65 |
12 |
13.5 |
|
27 |
H.OUT |
行激励信号输出 |
0.6 |
2.9 |
2.2 |
|
28 |
FBP IN |
反馈脉冲输入 |
1.1 |
11.5 |
12.2 |
|
29 |
I REF |
行振荡参考输入 |
1.6 |
5.5 |
5K |
|
30 |
CLOCK OUT |
行振荡信号输出* |
0.9 |
8.4 |
14K |
|
31 |
1 HDL VCC |
1行延迟线供电 |
4 |
0.8 |
0.48 |
|
32 |
1 HDL VCC OUT |
1行延迟线自举升压 |
7.55 |
0.79 |
∞ |
|
33 |
GND |
1行延迟/行电路地 |
0 |
0 |
0 |
|
34 |
SECAM B-Y IN |
SECAM蓝色差输入 |
2.2 |
11.5 |
12 |
|
35 |
SECAM R-Y IN |
SECAM红色差输入 |
2.2 |
11.5 |
12 |
|
36 |
C AFC2 FIL |
彩色AFC2滤波 |
3.1 |
12.5 |
13.2 |
|
37 |
FSC OUT |
SECAM制使用 |
1.7 |
1.4 |
9.5 |
|
38 |
XTAL |
晶振 |
2.75 |
12.3 |
13.2 |
|
39 |
C AFC1 FIL |
彩色AFC1滤波 |
3.5 |
12 |
13.9 |
|
40 |
SELECT V.OUT |
视频信号选择输出 |
2.2 |
12 |
12.1 |
|
41 |
GND(V/C/D) |
地 |
0 |
0 |
0 |
|
42 |
EXT V.IN |
外部视频信号输入 |
2.5 |
12.3 |
14.5 |
|
43 |
VCC(V/C/D) |
供电 |
4.9 |
0.55 |
0.2 |
|
44 |
INT V.IN |
内部视频信号输入 |
2.6 |
12 |
13.6 |
|
45 |
BLACK STR |
黑电平延伸滤波 |
3.8 |
12 |
13.8 |
|
46 |
VIDEO OUT |
视频信号输出 |
2.1 |
2 |
1.5 |
|
47 |
APC FIL |
38MHZ解调APC滤波 |
3.1 |
12.2 |
13.2 |
|
48 |
VCO COIL |
中频解调中周 |
4 |
1.2 |
0.7 |
|
49 |
VCO COIL |
中频解调中周 |
4 |
1.1 |
0.8 |
|
50 |
VCO FIL |
压控振荡器滤波 |
2.25 |
12.5 |
13 |
|
51 |
EXT AUDIO |
外部音频信号输入 |
1.6 |
11.5 |
10.2 |
|
|
52 |
SIF OUT |
伴音中频输出 |
1.8 |
11.5 |
14.7 |
|
53 |
SIF APC FIL |
伴音解调APC滤波 |
2 |
12 |
13.2 |
|
54 |
SIF IN |
伴音中频输入 |
3 |
12.5 |
13.9 |
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