參數(shù)資料
型號(hào)： CH7013A-T
廠商： Electronic Theatre Controls, Inc.
英文描述： Digital PC to TV Encoder
中文描述： 數(shù)碼電腦電視編碼器
文件頁數(shù)： 37/46頁
文件大?。?/td> 249K
代理商： CH7013A-T
CHRONTEL
Register Descriptions
(continued)
CH7013A
201-0000-041 Rev. 1.0, 6/14/2000
37
PLL N Value Register
Symbol: PLLN
Address: 15H
Bits: 8
The PLL N value register determines the division factor applied to the VCO output before being applied to the PLL phase
detector, when the CH7013A is operating in master or pseudo-master mode. In slave mode, the value of ‘N’ is always 1.
This register contains the lower 8 bits of the complete 10-bit N value. The pixel clock generated in a master and pseudo-
master modes is calculated according to the equation below:
Fpixel = Fref* [(N+2) / (M+2)]
When using a 14.318 MHz frequency reference, the required M and N values for each mode are shown in the table
below.
Buffered Clock Output Register
Symbol: BCO
Address: 17H
Bits: 6
The buffered clock output register determines which clock is selected to be output at the buffered clcok output pin,
and what frequency value should be output if a VCO derived signal is output. The tables below show the possible
outputs signals.
Bit:
Symbol:
Type:
Default:
7
N7
6
N6
5
N5
4
N4
3
N3
2
N2
1
N1
0
N0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
0
0
0
0
0
0
0
Table 25. M and N Values for Each Mode
Mode
VGA Resolution, TV
Standard, Scaling Ratio
N 10-
bits
M 9-
bits
Mode
VGA Resolution, TV
Standard, Scaling Ratio
640X480, PAL, 5:6
N 10-
bits
9
M 9-
bits
0
512x384, PAL, 5:4
20
13
4
15
3
1
512x384, PAL, 1:1
9
16
640X480, NTSC, 1:1
110
63
2
512X384, NTSC, 5:4
126
89
17
640X480, NTSC, 7:8
126
63
3
512X384, NTSC, 1:1
110
63
18
640X480, NTSC, 5:6
190
89
4
720X400, PAL, 5:4
53
26
19
800X600, PAL, 1:1
647
313
5
720X400, PAL, 1:1
339
138
20
800X600, PAL, 5:6
86
33
6
720X400, NTSC, 5:4
106
63
21
800X600, PAL, 3:4
284
103
7
720X400, NTSC, 1:1
70
33
22
800X600, NTSC, 5:6
94
33
8
640X400, PAL, 5:4
108
61
23
800X600, NTSC, 3:4
62
19
9
640X400, PAL, 1:1
9
3
24
800X600, NTSC, 7:10
302
89
10
640X400, NTSC, 5:4
94
63
25
720X576, PAL, 1:1
31
33
11
640x400, NTSC, 1:1
22
11
26
720X480, NTSC, 1:1
31
33
12
640X400, NTSC, 7:8
190
89
27
800X500, PAL, 1:1
242
197
13
640X480, PAL, 5:4
20
13
28
640X400, NTSC, 1:1
2
2
14
640X480, PAL, 1:1
9
4
Bit:
Symbol:
Type:
Default:
7
6
5
4
3
2
1
0
SHF2
SHF1
SHF0
SCO2
SCO1
SCO0
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
相關(guān)PDF資料
PDF描述
CH7013A-V Digital PC to TV Encoder
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CH7013A-V 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital PC to TV Encoder
CH7013B 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital PC to TV Encoder
CH7013B-D 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital PC to TV Encoder
CH7013B-DF 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital PC to TV Encoder
CH7013B-DF-TR 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital PC to TV Encoder
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