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參數(shù)資料
| 型號(hào)： | LMH1251 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | YPBPR to RGB Decoder and 2:1 Video Switch |
| 中文描述： | 色差到RGB解碼器和2:1視頻開關(guān) |
| 文件頁(yè)數(shù)： | 2/10頁(yè) |
| 文件大?。?/td> | 614K |
| 代理商： | LMH1251 |
Truth Table
TABLE 1. Input Select
Pin 24
0
1
OUT
RGBhv input Ch
YP
B
P
R
input Ch
TABLE 2.
Pin 23
0
0
1
1
Pin 22
0
1
*Outputs 0
*Outputs 1
SYNC
Bi-Level
Tri-Level
Bi-Level
Tri-Level
Format Detection
Manual
Manual
Auto
Auto
Decoding Scheme
480p
720p/180i
480p
720p/1080i
Note:
* When Pin 23 is set high, the LMH1251 is inAuto Mode, in which it can
detect the incoming video format (SD or HD) and apply the appropriate
color decoding and sync processing. WithAuto Mode, Pin 22 becomes
an output pin, and will either output a logic high or low to notify the user
of the format that is being detected by the LMH1251. If Pin 23 is set
low, the LMH1251 is in Manual Mode, in which the user must specify
TABLE 3. Power Save
the format with Pin 22. With Manual Mode, Pin 22 is an input pin. Since
Pin 22 is a bi-directional pin, care must be taken to not apply any
voltages to it when it is in the Auto Mode, in which it functions as an
output pin. The use of theAuto Mode with Pin 22 left floating is typically
recommended.
Pin 21
0
1
Low Power Mode
Disable
Enabled
Ordering Information
Package
Part Number
LMH1251MT
LMH1251MTX
Package Marking
Transport Media
61 Units/Rail
2.5k Units Tape and Reel
NSC Drawing
24-Pin TSSOP
LMH1251MT
MTC24
L
www.national.com
2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LMH1251MT | YPBPR to RGB Decoder and 2:1 Video Switch |
| LMH1251MTX | YPBPR to RGB Decoder and 2:1 Video Switch |
| LMH6502 | Wideband, Low Power, Linear-in-dB Variable Gain Amplifier |
| LMH6502MA | Wideband, Low Power, Linear-in-dB Variable Gain Amplifier |
| LMH6502MAX | Wideband, Low Power, Linear-in-dB Variable Gain Amplifier |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMH1251EVAL | 制造商:Texas Instruments 功能描述:Evaluation Board For LMH1251 Analog Video Switch 制造商:OC White Company 功能描述:Evaluation Board For LMH1251 Analog Video Switch |
| LMH1251EVAL/NOPB | 功能描述:視頻 IC 開發(fā)工具 LMH1251 EVAL BOARD RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Boards 類型:YPbPr to RGBHV Converters 工具用于評(píng)估:LMH1251 工作電源電壓:5 V |
| LMH1251MT | 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(shí)間: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)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 | 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(shí)間: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)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 |
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