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參數(shù)資料
| 型號(hào)： | LM1276 |
| 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 |
| 文件頁數(shù)： | 38/50頁 |
| 文件大小： | 2597K |
| 代理商： | LM1276 |
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Pre-Amplifier Interface Registers
(Continued)
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
DAC1[7:0]
Bits 7–0
This register determines the output of DAC 1. The full-scale output is determined by bit 6 of the
DAC Config, OSD Contrast & DC Offset Register (0x8438).
DAC 2 Output Level:
DAC2CTRL (0x8435)
DAC 2 Output Level
DAC2[7:0]
Bits 7–0
This register determines the output of DAC 2. The full-scale output is determined by bit 6 of the
DAC Config, OSD Contrast & DC Offset Register (0x8438).
DAC 3 Output Level:
DAC3CTRL (0x8436)
DAC 3 Output Level
DAC3[7:0]
Bits 7–0
This register determines the output of DAC 3. The full-scale output is determined by bit 6 of the
DAC Config, OSD Contrast & DC Offset Register (0x8438).
DAC 4 Output Level:
DAC4CTRL (0x8437)
DAC 4 Output Level
DAC4[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 7 of the DAC Config, OSD Contrast & DC
Offset Register (0x8438).
DAC Config, OSD Contrast & DC Offset:
DACOSDDCOFF (0x8438)
OSD Contrast
OSD[2:0]
DAC Options
DCF[1:0]
DC Offset
DC[2:0]
Bits 2–0
Bits 5–3
Bit 6
These determine the DC offset of the three video outputs, blue, red and green.
These determine the contrast of the internally generated OSD.
When this bit is a 0, the full-scale outputs of DACs 1–3 are 0.5V to 4.5V. When it is a 1, the
full-scale range is 0.5V to 2.5V.
When this bit is a 0, the DAC 4 output is independent. When it is a 1, the DAC 4 output is scaled
by 50% and added to the outputs of DACs 1–3.
Bit 7
Global Video Control:
GLOBALCTRL (0x8439)
Burn In
Contrast
BI[1:0]
Burn In
BI_EN
PLL
PLLCAL
Res’d
RSV
Res’d
RSV
Power
PS
Blank
BV
L
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| LM1276AAA | 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 |
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| LM1279AN | 功能描述:IC AMP RGB VIDEO SYSTEM 20-DIP RoHS:否 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(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:驅(qū)動(dòng)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(yīng)商設(shè)備封裝:20-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) |
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