參數(shù)資料
型號: VPC3200A
廠商: MICRONAS SEMICONDUCTOR HOLDING AG
元件分類: 消費家電
英文描述: Comb Filter Video Processor
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP80
封裝: PLASTIC, QFP-80
文件頁數(shù): 19/78頁
文件大?。?/td> 1245K
代理商: VPC3200A
ADVANCE INFORMATION
VPC 323xD, VPC 324xD
Micronas
19
– Both the length and the number of active video lines
varies with the selected window parameters. For
compliance with the ITU-R656 recommendation, a
size of 720 samples per line must be selected for
each window.
– During blanked video lines SAV/EAV headers are
suppressed in pairs. To assure vertical sync detec-
tion the V-flag in the EAV header of the last active
video line is set to 1. Additionally, during field blank-
ing all SAV/EAV headers (with the V-flag set to 1)
are inserted.
Table 2–6:
Coding of the SAV/EAV-header
The bits P0, P1, P2, and P3 are Hamming-coded pro-
tection bits.
Fig. 2–14:
Output of video data with embedded reference headers (@27 MHz)
Fig. 2–15:
Detailed data output (double-clock on)
Bit No.
Word
MSB
LSB
7
6
5
4
3
2
1
0
First
1
1
1
1
1
1
1
1
Second
0
0
0
0
0
0
0
0
Third
0
0
0
0
0
0
0
0
Fourth
T
F
V
H
P3
P2
P1
P0
F = 0 during field 1,
V = 0 during active lines V = 1 during vertical field blanking
H = 0 in SAV,
H = 1 in EAV
T = 1 (video task only)
F = 1 during field 2
1728 samples
S
E
S
E
constant during
horizontal blanking
Y=10
hex
; C
R
=C
B
=80
hex
AVO
Digital
Video
Output
C
B
Y C
R
Y ...
dependent on window size
C
B
Y C
R
Y ...
SAV: ”start of active video” header
EAV: ”end of active video” header
Y DATA
AVO
LLC1
LLC2
80h
10h
SAV
1
SAV
2
SAV
3
SAV
4
C
B1
Y
1
C
R1
Y
2
C
Bn-1
Y
n-1
C
Rn-1
Y
n
EAV
1
EAV
2
EAV
3
EAV
4
80h
10h
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