參數(shù)資料
型號(hào): SDA9588X
廠商: MICRONAS SEMICONDUCTOR HOLDING AG
元件分類: 畫面疊加
英文描述: Cost-effective Picture-In-Picture ICs
中文描述: PICTURE-IN-PICTURE IC, PDSO28
封裝: SOIC-28
文件頁數(shù): 13/87頁
文件大?。?/td> 2045K
代理商: SDA9588X
SDA 9488X
SDA 9588X
System Description
Micronas
4-13
Preliminary Data Sheet
4.2
Inset Synchronization
Horizontal and vertical sync pulses are separated after elimination of the high frequency
components of the CVBS signal by a low pass filter. Horizontal sync pulses are
generated by a digital phase-locked-loop (DPLL). Its time constant is adjustable between
fast and slow behavior in four steps (
PLLITC
) to consider different input sources (e.g.
VCR). Noisy input signals become more stable when a noise-reduction is enabled
(
NSRED
). Additionally weak input signals from a satellite dish (’fishes’) become more
stable when
SATNR
is enabled. Both should be enabled to have best available
performance. When
NOSIGB
is enabled, a colored background is shown instead of the
picture when PIP is out of synchronization. The detected line standard is indicated by
SYNCSTAT
.
4.3
Chroma Decoding And Standard Search
The system is able to decode NTSC and PAL signals with a subcarrier of 3.58MHz and
4.43MHz (PAL B/M/N/60, NTSC M/4.4) as well as SECAM signals with 4.05/4.2MHz
subcarrier. The system may be forced to a certain standard, or an automatic standard
detection can be used (
CSTAND
). For automatic standard detection, some standards
which are not likely to be received can be ignored to improve the detection process.
Depending on the detected line standard (525 or 625 lines) the color standard detection
circuit searches for 60 Hz signals (NTSC-M / PAL-M / PAL 60 / NTSC44) or 50 Hz signals
(PAL-B / SECAM / PAL-N) respectively. Within each line standard, the standard is
detected by consequently switching from one to another. This standard detection
process can be set to medium or fast behavior
(LOCKSP).
In medium behavior 30 fields
(in fast 20) are used to detect the standard. If not being successful within this time period
the system tries to detect another one. For SECAM detection, a choice between two
recognition levels is possible (
SCMIDL
) and the evaluated burstposition is selectable
(
BGPOS
).
.
Table 4-3
Considered color standards for automatic standard detection
For getting the chrominance information the digitized video signal is multiplied with the
regenerated color subcarrier once in-phase and once phase-shifted by 90°. After
lowpass filtering digital UV is available for PAL and NTSC. The subcarrier is regenerated
CSTANDEX
NTSC-
M
PAL60
PAL-N
PAL-M
PAL-B
SECAM
NTSC
44
D1
D0
0
0
0
.
1
0
1
1
1
相關(guān)PDF資料
PDF描述
SDA9489X PIP IV Advanced SOPHISTICUS High-End Picture-In-Picture ICs
SDA9589X PIP IV Advanced SOPHISTICUS High-End Picture-In-Picture ICs
SDB14 1.0 AMP. Schottky Barrier Rectifiers
SDB15 1.0 AMP. Schottky Barrier Rectifiers
SDB16 1.0 AMP. Schottky Barrier Rectifiers
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SDA9589X 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PIP IV Advanced SOPHISTICUS High-End Picture-In-Picture ICs
SDAB-15P 制造商:HRS 制造商全稱:HRS 功能描述:STRAIGHT/METAL PCB D-SUB
SDAB-15P(55) 制造商:Hirose Electric 功能描述:2.74mm 15 2 Zv^N ^Cv 39.14mm 350VAC 3A 5000M/500VDC 15m/100mA 1250VAC/1min. +85 -55 PBT/UL94V-0/ jbPbL+bL AWG#28 to #30 12.55mm Bulk
SDAB-15P05 制造商:HRS 制造商全稱:HRS 功能描述:STRAIGHT/METAL PCB D-SUB
SDAB-15S 制造商:HRS 制造商全稱:HRS 功能描述:STRAIGHT/METAL PCB D-SUB