- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄359354 > VDP3130Y (MICRONAS SEMICONDUCTOR HOLDING AG) Video Processor Family PDF資料下載
參數(shù)資料
| 型號： | VDP3130Y |
| 廠商： | MICRONAS SEMICONDUCTOR HOLDING AG |
| 英文描述： | Video Processor Family |
| 中文描述： | 視頻處理器系列 |
| 文件頁數(shù)： | 23/76頁 |
| 文件大?。?/td> | 1770K |
| 代理商： | VDP3130Y |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁當前第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁
ADVANCE INFORMATION
VDP 313xY
Micronas
23
2.11.3.Average Beam Current Limiter
The average beam current limiter (BCL) uses the
sense input for the beam current measurement. The
BCL uses a different filter to average the beam current
during the active picture. The filter bandwidth is
approx. 2 kHz. The beam current limiter has an auto-
matic offset adjustment that is active two lines before
the first cutoff measurement line.
The beam current limiter function is located in the
front-end. The data exchange between the front-end
and the back-end is done via a single-wire serial inter-
face.
The beam current limiter allows the setting of a thresh-
old current. If the beam current is above the threshold,
the excess current is lowpass filtered and used to
attenuate the RGB outputs by adjusting the whitedrive
multipliers for the internal (digital) RGB signals, and
the analog contrast multipliers for the analog RGB
inputs, respectively. The lower limit of the attenuator is
programmable, thus a minimum contrast can always
be set. During the tube measurement, the ABL attenu-
ation is switched off. After the whitedrive measurement
line it takes 3 lines to switch back to BCL limited drives
and brightness.
Typical characteristics of the ABL for different loop
gains are shown in Fig. 2
–
20; for this example the tube
has been assumed to have square law characteristics.
Fig. 2
–
20:
Beam current limiter characteristics:
beam current output vs. drive
BCL threshold: 1
2.11.4.Analog RGB Insertion
The VDP 313xY allows insertion of 2 external analog
RGB signals. Each RGB signal is key-clamped and
inserted into the main RGB by the fast blank switch.
The selected external RGB input is virtually handled as
a priority bus signal. Thus, it can be overlaid or under-
laid to the digital picture. The external RGB signals can
be adjusted independently as regards DC-level (bright-
ness) and magnitude (contrast).
Which analog RGB input is selected depends on the
fast blank input signals and the programming of a num-
ber of I
2
C-bus register settings (see Table 2
–
2 and Fig.
2
–
21). Both fast blank inputs must be either active-low
or active-high.
All signals for analog RGB insertion (RIN1/2, GIN1/2,
BIN1/2, FBLIN1/2, HCS) must be synchronized to the
horizontal flyback, otherwise a horizontal jitter will be
visible. The VDP 313xY has no means for timing cor-
rection of the analog RGB input signals.
Table 2
–
2:
RGB Input Selection
FBFOH1=0, FBFOH2=0, FBFOL1=0, FBFOL2=0
FBLIN1
FBLIN2
FBPOL
FBPRIO
RGB output
0
0
0
x
Video
0
1
0
x
RGB input 2
1
0
0
x
RGB input 1
1
1
0
0
RGB input 1
1
1
0
1
RGB input 2
0
0
1
0
RGB input 1
0
0
1
1
RGB input 2
0
1
1
x
RGB input 1
1
0
1
x
RGB input 2
1
1
1
x
Video
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| VDP31XXB | Video Processor Family |
| VDP3108PR | Consumer IC |
| VDSGLD_38.88 | TRANS PREBIASED PNP 200MW SOT23 |
| VDSL5100I | TVS 400W 43V UNIDIRECT SMA |
| VDSL5100 | TVS 400W 40V BIDIRECT SMA |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| VDP3131Y | 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:Video Processor Family |
| VDP3132Y | 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:Video Processor Family |
| VDP3133Y | 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:Video Processor Family |
| VDP3134Y | 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:Video Processor Family |
| VDP313XY | 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:Video Processor Family |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。