參數(shù)資料
型號: 9402AVK
廠商: MICRONAS SEMICONDUCTOR HOLDING AG
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP80
封裝: 14 X 14 MM, 2 MM HEIGHT, PLASTIC, MS-022, MQFP-80
文件頁數(shù): 42/126頁
文件大?。?/td> 1673K
代理商: 9402AVK
DATA SHEET
22
Aug. 16, 2004; 6251-552-1DS
Micronas
2.4.2. Operation Modes
There are four operation modes defined. The first
mode is simple AABB, where each stored field in the
memory is displayed double times on the TV screen.
The second and third mode are AAAA and BBBB, in
which only one field phase will be displayed on the TV
screen. There is also a fourth mode AAAA mode with
αβαβ raster possible. Fig. 2–31 explains the picture
and the display raster.
The interlaced input signal (e.g. 50 Hz PAL or 60 Hz
NTSC) is composed of a field A (odd lines) and a field
B (even lines).
A
n
- Input signal, field A at time n,
B
n
- Input signal, field B at time n
The field information describes the picture content.
The output signal, which could contain different picture
contents (e.g. field A, field B), can be displayed with
the display raster
α or β.
(A
n
,
α) - Output signal, field A at time n, displayed as
raster
α,
(A
n
,
β) - Output signal, field A at time n, displayed as
raster
β,
Table 2–9 on page 22) describes the different scan
rate conversion algorithms of VSP 94x2A and the cor-
responding raster sequences.
Fig. 2–32 on page 23 explains the 50/60 Hz interlaced
to the 100/120 Hz interlaced conversion including the
field signal, the raster organization and the memory
timing for AABB.
A still field can be displayed using FREEZE command.
For the improvement of VCR signals, the chrominance
can be shifted one line upwards by CHRSHFT
Fig. 2–31: Explanation of Field and Display Line-
scanning Pattern
Table 2–9: Examples of Panorama Mode
Function
Panorama
Extreme Pan.
Lens
HSCPOSC
2099d
1023d
3999d
HSEG1
96d
HSEG2
192d
HSEG3
288d
HSEG4
384d
HINC0
40d
85d
472d
HINC1
20d
43d
492d
HINC2
000d
HINC3
492d
469d
20d
HINC4
472d
427d
40d
APPLOP
960d
FIELD B
FIELD A
odd lines
even lines
FRAME/FIELD
FRAME
Content of picture
DISPLAY LINE-SCANNING PATTERN
TV
Display raster
Display line-scanning
pattern
Display line-scanning
pattern
Tube, Display raster
odd lines
even lines
field
ras0
1
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