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)
文件頁數(shù): 8/10頁
文件大?。?/td> 614K
代理商: LMH1251
Application Notes
(Continued)
LAYOUT CONSIDERATIONS
The most important point to note regarding the layout of the
LMH1251 on a PCB is that the trace length between the
output pins of the LMH1251 and the input AC coupling
capacitors of the next stage ADC or preamplifier must be as
minimal as possible. The trace lengths of the H Sync and V
Sync outputs should also be minimized, as the capacitive
loading on these outputs must not exceed 6 pF. For long
signal paths leading up to the input of the LMH1251, con-
trolled impedance lines should be used, along with imped-
ance matching elements. Bypass capacitors should be
placed as close as possible to the supply pins of the device.
The larger electrolytic bypass capacitor can be located far-
ther from the device. The 10K external resistor should also
be placed as close as possible to the R
EXT
pin.
20151908
FIGURE 1. Typical LMH1251 Application
20151907
FIGURE 2. Simplified Application Diagram for Driving a VGA Cable
L
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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