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14
Bit 7:C Trap Q _Y
0
:
LOW
1
:
High
Bit 6:Blanking switch
0
:
H
,
V blanking on 1
:
H
,
V blanking off
Bit 5:Y Coring SW
0
:
OFF 1
:
ON
Bit 4:Blank Strech SW
0
:
OFF 1
:
ON
Bit 3:Y GAMMA
00
:
off 01
:
Y point 78IRE
,
Gain -6dB
10
:
68IRE 11
:
58IRE
Bit 1:Blank Strech
00
:
Black strech point=30IRE 01
:
40IRE
DCBS-D
10
:
50IRE
11
:
75IRE
MENU05
Bit 5:FM BAND
0
:
Normal 1
:
Wide
Bit 4,3:C APC DATA
00
:
data 1-normal for black &white &NTSC
01
:
Data 2
10
:
Data 3 for PAL 11
:
the same as 10
Bit2:Set chroma APC
0
:
Disable 1
:
enable use Bit 3
,
4 data
Bit 1,0:Internal ADC
00
:
GND 01
:
R output
UCOM
00
10
:
B output 11
:
Monitor RF AGC via ADC
Bit 7,6:AFC GAIN
(AFC Fix=0
,
TV
模式且弱信号,判
断到
Nois_Bit4=0
时
)
Data
Description
Blanking period Picture period
00
:
2 1
01
:
4 2
10
:
2/3 1/3
11
:
OFF OFF
Bit 5,4:AFC GAIN
Data Description
Blanking period Picture period
00
:
2 1
01
:
4 2
10
:
2/3 1/3
11
:
OFF OFF
Bit 3,2:AFC GAIN
Data Description
Blanking period Picture period
00
:
2 1
01
:
4 2
10
:
2/3 1/3
11
:
OFF OFF
Bit 1,0:AFC GAIN
Data Description
Blanking period Picture period
00
:
2 1
01
:
4 2
HAFC
86
10
:
2/3 1/3
Summary of Contents for HTR20-A
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