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參數(shù)資料
| 型號(hào)： | LT1675 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 250MHz, Triple RGB Multiplexer with Current Feedback Amplifiers(250MHz,三路RGB多路轉(zhuǎn)換器（帶電流反饋放大器）) |
| 中文描述： | 250MHz的，三重的RGB多路復(fù)用器與電流反饋放大器（250MHz下，三路的RGB多路轉(zhuǎn)換器（帶電流反饋放大器）） |
| 文件頁數(shù)： | 13/16頁 |
| 文件大?。?/td> | 256K |
| 代理商： | LT1675 |
13
LT1675/LT1675-1
TYPICAL APPLICATIO S
Logo or “Bug” Inserter
RED
VIDEO IN
GREEN
BLUE
113
75
75
75
CABLE
CABLE
CABLE
V
+
V
–
SELECT
SELECT A
SELECT B
1675 TA05
ENABLE
75
75
75
V
OUT RED
113
LT1675
113
V
OUT GREEN
V
OUT BLUE
+1
+1
+2
+2
+2
+1
+1
+1
+1
226
V
+
V
–
SELECT
ENABLE
226
LT1675
B
A
226
+1
+1
+2
+2
+2
+1
+1
+1
+1
10k
10k
LT1634
5V
0.714V
1.25V
SELECT A
0
0
1
1
SELECT B
0
1
0
1
OUTPUT
NO VIDEO, 100% WHITE
VIDEO PLUS 66% WHITE
VIDEO PLUS 33% WHITE
VIDEO, NO WHITE
set the relative bit weights. The output of the LT1675
labeled B in the schematic is one half the weight of the A
device. To properly match the 75
video cable, the output
resistors are selected so the parallel combination of the
two is 75 ohms. The output will never exceed peak white,
which is 0.714V for this NTSC-related RGB video. The
reference white signal is adjustable to lower than peak
white to make the effect less intrusive, if desired.
This circuit highlights a section of the picture under
control of a synchronous key signal. It can be used for
adding the logo (also called a “bug”) you see in the bottom
corner of commercial television pictures or any sort of
overlay signal, such as a crosshair or a reticule. The key
signal has 2 bits of control so there can be four levels of
highlighting: unmodified video, video plus 33% white,
video plus 66% white and 100% white. The two LT1675s
are configured as a 2-bit DAC. The resistors on the outputs
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1675-1 | 250MHz, Single RGB Multiplexer with Current Feedback Amplifiers(250MHz,單路RGB多路轉(zhuǎn)換器（帶電流反饋放大器）) |
| LT1676 | Wide Input Range, High Efficiency, Step-Down Switching Regulator(寬輸入范圍，高效率，步降開關(guān)穩(wěn)壓器) |
| LT1677 | Low Noise, Rail-to-Rail Precision Op Amp(低噪聲，滿幅度輸入和輸出精密運(yùn)算放大器) |
| LT1684 | Micropower Ring Tone Generator |
| LT1684CN | Micropower Ring Tone Generator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1675-1 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:250MHz, Triple and Single RGB Multiplexer with Current Feedback Amplifiers |
| LT1675CGN | 功能描述:IC MUX RGB HISPEED TRIPLE 16SSOP RoHS:否 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標(biāo)準(zhǔn)包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應(yīng)用:移動(dòng)電話，手機(jī)，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應(yīng)商設(shè)備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064 |
| LT1675CGN#PBF | 功能描述:IC MUX RGB HISPEED TRIPLE 16SSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 標(biāo)準(zhǔn)包裝:250 系列:- 類型:電平移位器 應(yīng)用:LCD 電視機(jī)/監(jiān)控器 安裝類型:表面貼裝 封裝/外殼:28-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:28-WQFN（4x4）裸露焊盤 包裝:帶卷 (TR) 其它名稱:296-32523-2TPS65198RUYT-ND |
| LT1675CGN#TR | 功能描述:IC MUX RGB TRIPLE 250MHZ 16SSOP RoHS:否 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標(biāo)準(zhǔn)包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應(yīng)用:移動(dòng)電話，手機(jī)，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應(yīng)商設(shè)備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064 |
| LT1675CGN#TRPBF | 功能描述:IC MUX RGB HISPEED TRIPLE 16SSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標(biāo)準(zhǔn)包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應(yīng)用:移動(dòng)電話，手機(jī)，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應(yīng)商設(shè)備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064 |
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