- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄376602 > DDP3300A (MICRONAS SEMICONDUCTOR HOLDING AG) Single-Chip Display and Deflection Processor PDF資料下載
參數(shù)資料
| 型號： | DDP3300A |
| 廠商： | MICRONAS SEMICONDUCTOR HOLDING AG |
| 英文描述： | Single-Chip Display and Deflection Processor |
| 中文描述： | 單芯片顯示器和偏轉(zhuǎn)處理器 |
| 文件頁數(shù)： | 8/53頁 |
| 文件大?。?/td> | 1767K |
| 代理商： | DDP3300A |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁當(dāng)前第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
PRELIMINARY DATA SHEET
DDP 3300 A
MICRONAS INTERMETALL
8
2.1.4. Dynamic Peaking
Especially with decoded composite signals and notch fil-
ter luminance separation, as input signals, it is neces-
sary to improve the luminance frequency characteris-
tics. With transparent, high-bandwidth signals, it is
sometimes desirable to soften the image.
In the DDP 3300A, the luma response is improved by
‘dynamic’ peaking. The algorithm has been optimized
regarding step and frequency response. It adapts to the
amplitude of the high frequency part. Small AC ampli-
tudes are processed, while large AC amplitudes stay
nearly unmodified.
The dynamic range can be adjusted from
14 dB for small high frequency signals. There is sepa-
rate adjustment for signal overshoot and for signal un-
dershoot. For large signals, the dynamic range is limited
by a non-linear function that does not create any visible
alias components. The peaking can be switched over to
“softening” by inverting the peaking term by software.
14 to
The center frequency of the peaking filter is switchable
from 2.5 MHz to 3.2 MHz. For S-VHS and for notch filter
color decoding, the total system frequency responses
for both PAL and NTSC are shown in figure 2–4.
Transients, produced by the dynamic peaking when
switching video source signals, can be suppressed via
the priority bus.
Fig. 2–3:
Dynamic peaking frequency response
dB
MHz
20
5
–5
–10
–15
–20
0
2
4
6
8
10
15
10
0
dB
MHz
20
5
–5
–10
–15
–20
0
2
4
6
8
10
15
10
0
dB
MHz
20
5
–5
–10
–15
–20
0
2
4
6
8
10
15
10
0
CF= 3.2 MHz
CF= 2.5 MHz
S-VHS
dB
MHz
20
5
–5
–10
–15
–20
0
2
4
6
8
10
15
10
0
dB
MHz
20
5
–5
–10
–15
–20
0
2
4
6
8
10
15
10
0
CF= 3.2 MHz
CF= 2.5 MHz
PAL/SECAM
dB
MHz
20
5
–5
–10
–15
–20
0
2
4
6
8
10
15
10
0
dB
MHz
20
5
–5
–10
–15
–20
0
2
4
6
8
10
15
10
0
CF= 2.5 MHz
CF= 3.2 MHz
Fig. 2–4:
Total frequency response for peaking filter and S-VHS, PAL, NTSC
NTSC
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DDP3310B | Display and Deflection Processor |
| DDR-TJS-T2 | LED AlInGaP |
| DD0-SJS-S1 | LED AlInGaP |
| DD0-SJS-S2 | LED AlInGaP |
| DD0-SJS-T1 | LED AlInGaP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DDP3300A(DIP64) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Consumer IC |
| DDP3300A(PLCC68) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TV/Video Signal Processor |
| DDP3300A(SDIP64) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TV/Video Signal Processor |
| DDP3300AD3 | 制造商:MICRONAS 功能描述:New |
| DDP3300APSD3 | 制造商:MICRONAS 功能描述:New |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。