ch7019 Chrontel, ch7019 Datasheet - Page 37

• Manufacturer Part Number: ch7019
• Description: Ch7019 Tv Encoder / Lvds Transmitter
• Manufacturer: Chrontel

CHRONTEL
1
Flicker Filter Register
YFFL[1:0] (bits 1-0) of register FF control the filter used in the scaling and flicker reduction block applied to the non-
text portion (low frequency) of the luminance signal as shown in Table 20 below.
YFFH[1:0] (bits 3-2) of register FF control the filter used in the scaling and flicker reduction block applied to the text
portion (high frequency) of the luminance signal as shown in Table 20 below.
Scaling Ratio
5/4
1/1, 7/8, 5/6, 3/4, 5/7, 7/10
5/8
25/21
5/9
½
201-0000-048
DEFAULT:
Table 19: Video Output Standard Selection
SYMBOL:
These DVD modes operate with interlaced input. Scan conversion and flicker filter are bypassed.
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
Table 20: Luma Flicker Filter Control
VOS[1:0]
Output Format
1
1
TYPE:
BIT:
VOF1
R/W
0
7
Rev. 2.4,
111
111
111
111
111
111
101
100
001
010
011
100
100
100
101
101
101
6
VOF0
R/W
1
00
00
00
01
01
01
00
01
01
01
00
01
01
01
00
00
00
12/18/2006
00
PAL
100
101
110
101
110
111
000
000
111
111
111
101
110
111
101
110
111
YFFH and YFFL Flicker Filter Settings (lines)
00
2
2
2
2
3
3
5
CFF1
R/W
1
1024x768
1024x768
1024x768
1024x768
1024x768
1024x768
720x576
720x480
720x400
640x400
640x480
720x480
720x480
720x480
720x576
720x576
720x576
4
CFF0
R/W
0
01
3
3
3
3
4
5
01
NTSC
1400x1000
1400x1125
1168x1050
1400x875
1160x840
1160x945
864x625
858x525
900x441
800x441
800x525
880x525
784x600
880x630
888x625
880x750
880x875
3
YFFH1
R/W
0
10
3
4
4
6
5
5
NTSC
NTSC
NTSC
NTSC
NTSC
NTSC
NTSC
NTSC
NTSC
PAL
PAL
PAL
PAL
PAL
PAL
PAL
PAL
PAL-M
10
2
YFFH0
R/W
1
Symbol:
Address:
Bits:
25/21
25/21
25/21
1 / 2
1/1
1/1
7/8
5/6
1/1
5/6
5/7
5/7
5/8
5/9
5/8
5/9
1/1
11
3
5
6
6
6
7
1
YFFL1
R/W
1
-16
-25
-10
-20
-13
-18
-18
-30
-4
-1
-1
-1
0
0
0
0
0
FF
01h
8
11
NTSC-J
CH7019B
65.706295
13.500000
13.500000
23.790210
21.146854
21.000000
28.195805
33.230770
27.750000
33.000000
38.500000
61.250000
70.000000
78.750000
58.405595
73.510491
27.692308
0
YFFL0
R/W
1
37