- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄2002 > ISL98003CNZ-165 (Intersil)IC AFE 3CH 8BIT 165MHZ 80EPTQFP PDF資料下載
參數(shù)資料
| 型號(hào)： | ISL98003CNZ-165 |
| 廠商： | Intersil |
| 文件頁數(shù)： | 19/31頁 |
| 文件大小： | 0K |
| 描述： | IC AFE 3CH 8BIT 165MHZ 80EPTQFP |
| 標(biāo)準(zhǔn)包裝： | 119 |
| 位數(shù)： | 8 |
| 通道數(shù)： | 3 |
| 功率（瓦特）： | 1.1W |
| 電壓 - 電源，模擬： | 1.8V，3.3V |
| 電壓 - 電源，數(shù)字： | 1.65 V ~ 2 V |
| 封裝/外殼： | 80-TQFP 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 80-TQFP-EP（12x12） |
| 包裝： | 托盤 |
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頁當(dāng)前第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
26
FN6760.0
September 12, 2008
channel may look like SOG activity when there actually is no
SOG signal, while non-standard SOG signals and TriLevel
sync signals may have amplitudes below the default SOG
slicer levels and not be easily detected. As a consequence,
not all of the activity detect bits in the ISL98003 are correct
under all conditions.
For best SOG operation, the SOG low pass filter (register
0x31[6] should always be enabled to reject the high
frequency peaking often seen on video signals.
HSYNC and VSYNC Activity Detect
Activity on these bits always indicates valid sync pulses, so
they should have the highest priority and be used even if the
SOG activity bit is also set.
SOG Activity Detect
The SOG activity detect bit monitors the output of the SOG
slicer, looking for 64 consecutive pulses with the same
period and duty cycle. If there is no signal on the Green
(or Y) channel, the SOG slicer will clamp the video to a DC
level and will reject any sporadic noise. There should be no
false positive SOG detects if there is no video on Green
(or Y).
If there is video on Green (or Y) with no valid SOG signal,
the SOG activity detect bit may sometimes report false
positives (it will detect SOG when no SOG is actually
present). This is due to the presence of video with a
repetitive pattern that creates a waveform similar to SOG.
For example, the desktop of a PC operating system is black
during the front porch, horizontal sync, and back porch, then
increases to a larger value for the video portion of the
screen. This creates a repetitive video waveform very similar
to SOG that may falsely trigger the SOG Activity detect bit.
However, in these cases where there is active video without
SOG, the SYNC information will be provided either as
separate H and V sync on HSYNCIN and VSYNCIN, or
composite sync on HSYNCIN. HSYNCIN and VSYNCIN
should therefore be used to qualify SOG. The SOG Active bit
should only be considered valid if HSYNC Activity
Detect = 0. Note: Some pattern generators can output
HSYNC and SOG simultaneously, in which case both the
HSYNC and the SOG activity bits will be set, and valid. Even
in this case, however, the monitor should still choose
HSYNC over SOG.
TriLevel Sync Detect
The TriLevel detect for Sync on Green (SOG) utilizes the
digitized data from the selected Green video channel. If
TriLevel Sync is present, the default DC Clamp start position
will clamp at the top of the TriLevel Sync pulse giving a false
negative for TriLevel detect and clamping off the bottom half
of the green video. If you have an indication of active SOG
you must move the clamp start to a value greater than 0x30
to check to see if the TriLevel Sync is present.
SYNC Output Signals
The ISL98003 has a pair of HSYNC output signals,
HSYNCOUT and VSYNCOUT, and HSOUT.
HSYNCOUT and VSYNCOUT are buffered versions of the
incoming sync signals; no synchronization is done. These
signals are used for mode detection
HSOUT is generated by the ISL98003’s logic and is
synchronized to the output DATACLK and the digital pixel
data on the output databus. HSOUT is used to signal the
start of a new line of digital data.
Both HSYNCOUT and VSYNCOUT (including the sync
separator function) remain active in power-down mode. This
allows them to be used in conjunction with the Sync Status
registers to detect valid video without powering up the
ISL98003.
HSYNCOUT
HSYNCOUT is an unmodified, buffered version of the incoming
HSYNCIN or SOGIN signal of the selected channel, with the
incoming signal’s period, polarity, and width to aid in mode
detection. HSYNCOUT will be the same format as the incoming
sync signal: either horizontal or composite sync. If a SOG input
is selected, HSYNCOUT will output the entire SOG signal,
including the VSYNC portion, pre-/post-equalization pulses if
present, and Macrovision pulses if present. HSYNCOUT
remains active when the ISL98003 is in power-down mode.
HSYNCOUT is generally used for mode detection.
VSYNCOUT
VSYNCOUT is an unmodified, buffered version of the incoming
VSYNCIN signal of the selected channel, with the original
VSYNC period, polarity, and width to aid in mode detection. If a
SOG input is selected, this signal will output the VSYNC signal
extracted by the ISL98003’s sync slicer. Extracted VSYNC will
be the width of the embedded VSYNC pulse plus pre- and
post-equalization pulses (if present). Macrovision pulses from
an NTSC DVD source will lengthen the width of the VSYNC
pulse. Macrovision pulses from other sources (PAL DVD or
videotape) may appear as a second VSYNC pulse
encompassing the width of the Macrovision. See “Macrovision”
sync separator function) remains active in power-down mode.
VSYNCOUT is generally used for mode detection, start of field
detection, and even/odd field detection.
HSOUT
HSOUT is generated by the ISL98003’s control logic and is
synchronized to the output DATACLK and the digital pixel data
on the output databus. Its trailing edge is aligned with pixel 0. Its
width, in units of pixels, is determined by register 0x2A, and its
polarity is determined by register 0x29[3]. As the width is
increased, the trailing edge stays aligned with pixel 0, while the
leading edge is moved backwards in time relative to pixel 0.
HSOUT is used by the scaler to signal the start of a new line of
pixels.
ISL98003
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISLA118P50IRZ | IC ADC 8BIT SPI/SRL 500M 72QFN |
| ISLA212P20IRZ | IC ADC 12BIT SRL/SPI 72QFN |
| ISLA214S50IR1Z | IC ADC |
| ISLA222P13IRZ | IC ADC 12BIT SRL/SPI 72QFN |
| ISLA224S25IR1Z | IC ADC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL98003CNZ-165S2733 | 制造商:Intersil Corporation 功能描述:TANGTOP ISL98003CNZ-T165 W/BUSINESS TRACKING REQUIREMENTS - Trays |
| ISL98003CNZ-EVALZ | 功能描述:EVAL BOARD FOR ISL98003CNZ RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估演示板和套件 系列:* 標(biāo)準(zhǔn)包裝:1 系列:PCI Express® (PCIe) 主要目的:接口，收發(fā)器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要屬性:- 次要屬性:- 已供物品:板 |
| ISL98003INZ-110 | 功能描述:IC AFE 3CH 8BIT 110MHZ 80EPTQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模擬前端 (AFE) 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 位數(shù):- 通道數(shù):2 功率（瓦特）:- 電壓 - 電源，模擬:3 V ~ 3.6 V 電壓 - 電源，數(shù)字:3 V ~ 3.6 V 封裝/外殼:32-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:32-QFN（5x5） 包裝:帶卷 (TR) |
| ISL98003INZ-EVALZ | 功能描述:EVALUATION BOARD FOR ISL98003INZ RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估演示板和套件 系列:- 標(biāo)準(zhǔn)包裝:1 系列:PCI Express® (PCIe) 主要目的:接口，收發(fā)器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要屬性:- 次要屬性:- 已供物品:板 |
| ISL98012IUZ | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 1.8V INPUT PWM STP UPG 10LD RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。