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參數(shù)資料
| 型號： | AD8145YCPZ-R7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 13/24頁 |
| 文件大小： | 0K |
| 描述： | IC RECEIVER TRIPLE DIFF 32LFCSP |
| 標準包裝： | 1 |
| 類型： | 接收器 |
| 驅(qū)動器/接收器數(shù)： | 0/3 |
| 規(guī)程： | 以太網(wǎng) |
| 電源電壓： | 4.5 V ~ 24 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 32-VFQFN 裸露焊盤，CSP |
| 供應商設備封裝： | 32-LFCSP-VQ |
| 包裝： | 標準包裝 |
| 產(chǎn)品目錄頁面： | 765 (CN2011-ZH PDF) |
| 其它名稱： | AD8145YCPZ-R7DKR |
AD8145
Rev. A | Page 20 of 24
SYNC PULSE EXTRACTION USING COMPARATORS
The AD8134 encoding equations are given in Equation 4,
Equation 5, and Equation 6.
The AD8145 is particularly useful in KVM applications. KVM
networks transmit and receive computer video signals that typically
comprise red, green, and blue (RGB) video signals and separate
horizontal and vertical sync signals. Because the sync signals are
separate and not embedded in the color signals, it is advantageous
to transmit them using a simple scheme that encodes them among
the three common-mode voltages of the RGB signals. The AD8134
triple differential driver is a natural complement to the AD8145
and performs the sync pulse encoding with the necessary
circuitry on-chip.
[
]
H
V
K
V
Red
CM
=
2
(4)
[
]
V
2
= K
V
Green
CM
(5)
[
]
H
V
K
V
Blue
CM
+
=
2
(6)
where:
Red VCM, Green VCM, and Blue VCM are the transmitted common-
mode voltages of the respective color signals.
K is an adjustable gain constant that is set by the AD8134.
V and H are the vertical and horizontal sync pulses, defined
with a weight of 1 when the pulses are in their low states and a
weight of +1 when they are in their high states.
The AD8134 data sheet contains further details regarding the
encoding scheme. Figure 44 illustrates how the AD8145 comparators
can be used to extract the horizontal and vertical sync pulses that
are encoded on the RGB common-mode voltages by the AD8134.
RECEIVED
RED VIDEO
HSYNC
RED CMV
GREEN CMV
BLUE CMV
50
50
1k
1k
VSYNC
RECEIVED
GREEN VIDEO
50
50
RECEIVED
BLUE VIDEO
50
50
RS
475
47pF
0
630
7-
0
45
Figure 44. Extracting Sync Signals from Received Common-Mode Signal
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD8145YCPZ-RL | 功能描述:IC RECEIVER TRIPLE DIFF 32LFCSP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標準包裝:27 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):3/3 規(guī)程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC 包裝:管件 |
| AD8146 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Triple Differential Driver for Wideband Video |
| AD8146ACPZ-R2 | 功能描述:IC DRIVER TRPL DIFF VID 24LFCSP RoHS:是 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 應用:TFT-LCD 面板：VCOM 驅(qū)動器 輸出類型:滿擺幅 電路數(shù):1 -3db帶寬:35MHz 轉(zhuǎn)換速率:40 V/µs 電流 - 電源:3.7mA 電流 - 輸出 / 通道:1.3A 電壓 - 電源，單路/雙路(±):9 V ~ 20 V，±4.5 V ~ 10 V 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬）裸露焊盤 供應商設備封裝:8-uMax-EP 包裝:管件 |
| AD8146ACPZ-R7 | 功能描述:IC DRIVER TRIPLE DIFF 24-LFCSP RoHS:是 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 標準包裝:1,000 系列:- 應用:驅(qū)動器 輸出類型:差分 電路數(shù):3 -3db帶寬:350MHz 轉(zhuǎn)換速率:1000 V/µs 電流 - 電源:14.5mA 電流 - 輸出 / 通道:60mA 電壓 - 電源，單路/雙路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安裝類型:表面貼裝 封裝/外殼:20-VFQFN 裸露焊盤 供應商設備封裝:20-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) |
| AD8146ACPZ-RL | 功能描述:IC DVR TRPL DIFF WB VID 24LFCSP RoHS:是 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 標準包裝:1,000 系列:- 應用:驅(qū)動器 輸出類型:差分 電路數(shù):3 -3db帶寬:350MHz 轉(zhuǎn)換速率:1000 V/µs 電流 - 電源:14.5mA 電流 - 輸出 / 通道:60mA 電壓 - 電源，單路/雙路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安裝類型:表面貼裝 封裝/外殼:20-VFQFN 裸露焊盤 供應商設備封裝:20-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) |
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