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參數資料
| 型號： | LM1269NA/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 3 CHANNEL, VIDEO PREAMPLIFIER, PDIP24 |
| 封裝： | PLASTIC, DIP-24 |
| 文件頁數： | 20/20頁 |
| 文件大小： | 1676K |
| 代理商： | LM1269NA/NOPB |
Pin Descriptions (Continued)
Pin No.
Pin Name
Schematic
Description
5
6
7
Red Video In
Green Video In
Blue Video In
Video inputs. These inputs must be AC
coupled with a 4.7 nF cap. DC restoration is
done at these inputs. A series resistor of
about 33
and external ESD protection
diodes should also be used for ESD
protection.
8
Analog Ground
Ground Pin for the analog circuits of the
LM1269.
9V
CC
Power supply pin for LM1269.
10
V
refRext
Sets the internal current sources through a
10 k
1% external resistor. Resistor value
and accuracy is critical for optimum
operation of the LM1269.
11
SDA
The I
2C data line. A pull-up resistor of about
2k
should be connected between this pin
and +5V. A 300
resistor should be
connected in series with the data line for
protection against arcing.
12
SCL
The I
2C Clock line. A pull-up resistor of
about 2 k
should be connected between
this pin and +5V. A 300
resistor should be
connected in series with the clock line for
protection against arcing.
13
14
15
16
DAC4
DAC3
DAC2
DAC1
DAC outputs for cathode cut-off adjustments
and brightness control. DAC 4 can be set to
change the outputs of the other three DACs,
acting as the brightness control. The DACs
are set through the I
2C bus.
17
Digital Ground
Ground Pin for the digital circuits of the
LM1269.
LM1269
www.national.com
9
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM126H | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:VOLTAGE REGULATORS |
| LM126H/883B | 制造商:Texas Instruments 功能描述:IC,VOLT REGULATOR,FIXED,+-12V,BIPOLAR,CAN,10PIN,METAL |
| LM126H/883C | 制造商:Texas Instruments 功能描述: |
| LM1270 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Hi-Brite 200 MHz I2C Compatible RGB Image Enhancer with Video Auto Sizing |
| LM1270N | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Hi-Brite 200 MHz I2C Compatible RGB Image Enhancer with Video Auto Sizing |
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