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參數(shù)資料
| 型號： | LMH1251MT |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 運動控制電子 |
| 英文描述： | YPBPR to RGB Decoder and 2:1 Video Switch |
| 中文描述： | 2-CHANNEL, AUDIO/VIDEO SWITCH, PDSO24 |
| 封裝： | TSSOP-24 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大小： | 614K |
| 代理商： | LMH1251MT |
LMH1251
YP
B
P
R
to RGB Decoder and 2:1 Video Switch
General Description
The LMH
1251 is a wideband 2:1 analog video switch with
an integrated YP
B
P
R
to RGB decoder. The device accepts
one set of YP
P
inputs and one set of RGB/HSYNC/
VSYNC inputs. Based on the input selected, the output will
be either a decoded TV or buffered PC video signal.
The LMH1251 has a SYNC separator and processor that is
capable of extracting sync timing information from both Stan-
dard Definition Television (SDTV) and High Definition Tele-
vision (HDTV) inputs. It provides bi-level sync, and tri-level
sync separation.
The color space conversion from YP
B
P
R
to RGB in the
LMH1251 is realized with a very high precision fully analog
dematrixer that provides chrominance accuracy that is less
than 2.5% of amplitude & 1.5 of phase error on a vector-
scope. It is equipped with a smart video detection circuit
which automatically senses SDTV and HDTV video formats
and applies the appropriate color space conversion.
The LMH1251 is capable of handling SDTV, HDTV, XGA,
SXGA, and UXGA video formats, which makes it an ideal
solution for enhancing value in applications ranging from
LCD monitors, to set-top boxes, to projectors. The LMH1251
is available in a TSSOP-24 package.
Features
n
YP
B
P
R
to RGB decoding
n
YP
B
P
R
path: 70 MHz, 3 dB, 700 mV
PP
bandwidth
n
RGB path: 400 MHz, 3 dB, 700 mV
PP
bandwidth
n
Supports PC video display resolutions up to UXGA
(1600 x 1200
@
75 Hz)
n
Supports 480i, 480p, 576i, 576p, 720p, 1080i, and
1080p
n
Smart video format detection for SD and HD
n
Power save mode
Applications
n
TFT LCD monitor
n
CRT monitor
n
Set-top box
n
Display projector
Connection Diagram
24-Pin TSSOP
20151927
Top View
LMH
is a trademark of National Semiconductor Corporation.
August 2005
L
B
P
R
t
2005 National Semiconductor Corporation
DS201519
www.national.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMH1251MT/NOPB | 功能描述:視頻開關(guān) IC RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關(guān)閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel |
| LMH1251MT-NOPB | 制造商:TI 制造商全稱:Texas Instruments 功能描述:YPBPR Path: 70 MHz, a??3 dB, 700 mVPP Bandwidth |
| LMH1251MTX | 功能描述:視頻開關(guān) IC RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關(guān)閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel |
| LMH1251MTX/NOPB | 功能描述:視頻開關(guān) IC RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關(guān)閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel |
| LMH1297EVM | 功能描述:LMH1297 12G BIDIRECTIONAL I/O EV 制造商:texas instruments 系列:* 零件狀態(tài):在售 標準包裝:1 |
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