參數(shù)資料
型號(hào)： LM1246AAA
廠商： National Semiconductor Corporation
英文描述： 150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character RAM and 4 DACs
中文描述： 150 MHz的I2C兼容的RGB前置放大器512個(gè)字符OSD光盤，512個(gè)字符RAM和4 DAC的內(nèi)置
文件頁(yè)數(shù)： 40/51頁(yè)
文件大小： 2794K
代理商： LM1246AAA
Pre-Amplifier Interface Registers
(Continued)
Bits 6–0
This register determines the gain of the red video channel. This affects only the red channel
whereas the contrast register (0x8433) affects all channels.
Reserved and should be set to zero.
Bit 7
Contrast Control:
CONTRCTRL (0x8433)
Res’d
X
Contrast
CG[6:0]
Bits 6–0
Bit 7
This register determines the contrast gain and affects all three channels, blue, red and green.
Reserved and should be set to zero.
DAC 1 Output Level:
DAC1CTRL (0x8434)
DAC 1 Output Level
BC[7:0]
Bits 7–0
This register determines the output of DAC 1. The full-scale output is determined by bit 5 of the
DAC Config, OSD Contrast & DC Offset Register.
DAC 2 Output Level:
DAC2CTRL (0x8435)
DAC 2 Output Level
GC[7:0]
Bits 7–0
This register determines the output of DAC 2. The full-scale output is determined by bit 5 of the
DAC Config, OSD Contrast & DC Offset Register.
DAC 3 Output Level:
DAC3CTRL (0x8436)
DAC 3 Output Level
RC[7:0]
Bits 7–0
This register determines the output of DAC 3. The full-scale output is determined by bit 5 of the
DAC Config, OSD Contrast & DC Offset Register (0x8438).
DAC 4 Output Level:
DAC4CTRL (0x8437)
DAC 4 Output Level
BA[7:0]
Bits 7–0
This register determines the output of DAC 4. The output of this DAC can be scaled and mixed
with the outputs of DACs 1–3 as determined by bit 6 of the DAC Config, OSD Contrast & DC
Offset Register.
DAC Config, OSD Contrast & DC Offset:
DACOSDDCOFF (0x8438)
DAC Options
OSD Contrast
DCF[1:0]
Res’d
X
DC Offset
DC[2:0]
OSD[1:0]
Bits 2–0
Bits 4–3
These determine the DC offset of the three video outputs, blue, red and green.
These determine the contrast of the internally generated OSD.
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相關(guān)PDF資料
PDF描述
LM1246 150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character RAM and 4 DACs
LM1246NA 150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character RAM and 4 DACs
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM1246AAC/NA 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述:IC 150MHZ RGB PREAMP 1246 DIP24
LM1246AAC/NA/NOPB 功能描述:IC PREAMP RGB 150MHZ 24-DIP RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標(biāo)準(zhǔn)包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應(yīng)用:移動(dòng)電話，手機(jī)，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應(yīng)商設(shè)備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064
LM1246NA 制造商:NSC 制造商全稱:National Semiconductor 功能描述:150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character RAM and 4 DACs
LM1247 制造商:NSC 制造商全稱:National Semiconductor 功能描述:150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character RAM and 4 DACs
LM1247AAG/NA 功能描述:IC PREAMP CMOS 150MHZ 24DIP RoHS:否 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標(biāo)準(zhǔn)包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應(yīng)用:移動(dòng)電話，手機(jī)，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應(yīng)商設(shè)備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064
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