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參數(shù)資料
| 型號(hào)： | AN5095 |
| 廠商： | Panasonic Corporation |
| 英文描述： | Single chip IC with I2C bus interface for PAL/NTSC color TV system |
| 中文描述： | 單一的PAL制式的I2C總線接口芯片IC / NTSC彩色電視系統(tǒng) |
| 文件頁數(shù)： | 34/36頁 |
| 文件大?。?/td> | 405K |
| 代理商： | AN5095 |
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34
AN5095K
ICs for TV
I
Technical Information (continued)
Explanation of each block (continued)
7. I
2
C bus (continued)
5) Contents of I
2
C bus control (continued)
(2) Supplement of other control (continued)
f. 0A: RF AGC delay point adjustment
The same operation as when bias is applied from outside conventionally.
Data 00
→
DC-applied bias drops
→
delay point rises
Data 3F
→
DC-applied bias drops
→
delay point down
g. 0B: Video adjustment
Data 0*
→
detection output min. 7*
→
max. to be used for correcting the dispersion of detection
output inside the IC.
h. 0B: Hor. screen image position
Data *0
→
screen image goes to the left 7 *
→
screen image shifts to the right.
i. 0C: VCO control
Fine control for the oscillation frequency of VCO (1/2 frequency of f
P
) of VIF.
8. Supplementary explanation of SW operation
Data-bit
SW contents
Concrete contents
00-D7
PAL/NTSC mode SW
(0
→
PAL)
(1
→
NTSC)
1) BGP width changeover (PAL: Wide)
2) CW changeover to killer (PAL: 90 deg./270 deg.)
3) Tint operation changeover (PAL: Tint off)
4) Ident operation changeover (PAL: With operation)
00-D6
PAL, NTSC/SECAM mode SW
(1
→
forced SECAM)
(0
→
normal discrimination mode)
1) Demodulation output mode changeover.
The color difference output terminal becomes high
impedance at forced SECAM.
01-D7
Ver. auto SW
(0
→
auto changeover)
(1
→
manual changeover)
1) Vertical frequency discrimination circuit changeover.
Auto changeover: Automatic discrimination mode by
internal counter.
Manual changeover: Forcibly changeover 50 Hz/60
Hz by 02-D7 data.
01-D6
Ver. TRG stop SW
(0
→
normal)
(1
→
trigger off)
1) Vertical trigger input inhibit SW.
1
→
trigger input-off is the mode to protect from the
vertical dancing caused by noise at blue-back .
02-D7
Ver. OSC SW
(0
→
50 Hz)
(1
→
60 Hz)
1) Vertical frequency changeover SW.
Valid only when 01-D7 is 1.
03-D7
0B-D7
SIF, external AV input changeover switch
03-D7
0B-D7
Output signal
0
0
SIF1 (int.)
Power on time
0
1
SIF2 (int.)
1
0
SIF3 (int.)
1
1
Ext. (video)
Int. is set at SIF1
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