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參數(shù)資料
| 型號： | LT1675CS8-1#TR |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 5/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MUX RGB TRIPLE 250MHZ 8SOIC |
| 標準包裝： | 2,500 |
| 類型： | 多路復(fù)用器 |
| 應(yīng)用： | 驅(qū)動器，處理，切換 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SOIC |
| 包裝： | 帶卷 (TR) |
13
LT1675/LT1675-1
16751fb
TYPICAL APPLICATIO S
U
Logo or “Bug” Inserter
RED
VIDEO IN
GREEN
BLUE
113
75
75
75
CABLE
V+
V–
SELECT
SELECT A
SELECT B
1675 TA05
ENABLE
75
75
75
VOUT RED
113
LT1675
113
VOUT GREEN
VOUT BLUE
+1
+2
+1
226
V+
V–
SELECT
ENABLE
226
LT1675
B
A
226
+1
+2
+1
10k
LT1634
5V
0.714V
1.25V
SELECT A
0
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
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1675CSM8-1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Interface IC |
| LT1676 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:50mA, 3V to 80V Low Dropout Micropower Linear Regulator |
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| LT1676CN8 | 功能描述:IC REG BUCK ADJ 0.7A 8DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標準包裝:2,500 系列:- 類型:升壓（升壓） 輸出類型:可調(diào)式 輸出數(shù):1 輸出電壓:1.24 V ~ 30 V 輸入電壓:1.5 V ~ 12 V PWM 型:電流模式，混合 頻率 - 開關(guān):600kHz 電流 - 輸出:500mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:8-SOIC |
| LT1676CN8#PBF | 功能描述:IC REG BUCK ADJ 0.7A 8DIP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標準包裝:2,500 系列:- 類型:升壓（升壓） 輸出類型:可調(diào)式 輸出數(shù):1 輸出電壓:1.24 V ~ 30 V 輸入電壓:1.5 V ~ 12 V PWM 型:電流模式，混合 頻率 - 開關(guān):600kHz 電流 - 輸出:500mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:8-SOIC |
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