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參數(shù)資料
| 型號： | LM1276AAA/NA |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1 CHANNEL, VIDEO PREAMPLIFIER, PDIP28 |
| 封裝： | PLASTIC, DIP-28 |
| 文件頁數(shù)： | 31/50頁 |
| 文件大?。?/td> | 6075K |
| 代理商： | LM1276AAA/NA |
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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)
DAC Options
OSD Contrast
DC Offset
DCF[1:0]
OSD[2:0]
DC[2:0]
Bits 2–0
These determine the DC offset of the three video outputs, blue, red and green.
Bits 5–3
These determine the contrast of the internally generated OSD.
Bit 6
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.
Bit 7
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.
Global Video Control:
GLOBALCTRL (0x8439)
Burn In Contrast Burn In
PLL
Res'd
Power
Blank
BI[1:0]
BI_EN
PLLCA
L
RSV
PS
BV
Bit 0
When this bit is a 1, the video outputs are blanked (set to black level). When it is a 0, video is not blanked.
Bit 1
When this bit is a 1, the analog sections of the preamplifier are shut down for low power consumption. When it is a 0,
the analog sections are enabled.
Bits 3–2
Reserved.
Bit 4
When this bit is set high, the calibration sequence for the PLL Auto Mode is initiated, the PLL Auto mode is activated,
and will unset itself upon completion.
Bit 5
This bit will enable the Burn In Screen.
Bits 7–6
These bits determine the contrast level of the Burn In Screen.
37
www.national.com
200969 Version 2 Revision 4
Print Date/Time: 2011/07/11 11:20:12
LM1276
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM1279 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:110 MHz RGB Video Amplifier System with OSD |
| LM12791DL WAF | 制造商:Texas Instruments 功能描述: |
| LM1279A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| 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:- 標準包裝:1,000 系列:- 應用:驅動器 輸出類型:差分 電路數(shù):3 -3db帶寬:350MHz 轉換速率: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 供應商設備封裝:20-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) |
| LM1279DL WAF | 制造商:Texas Instruments 功能描述: |
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